+++ /dev/null
-;;; cperl-mode.el --- Perl code editing commands for Emacs
-
-;; Copyright (C) 1985, 86, 87, 91, 92, 93, 94, 95, 96, 97, 98, 99,
-;; 2000, 2003, 2005
-;; Free Software Foundation, Inc.
-
-;; Author: Ilya Zakharevich and Bob Olson
-;; Maintainer: Ilya Zakharevich <cperl@ilyaz.org>
-;; Keywords: languages, Perl
-
-;; This file is part of GNU Emacs.
-
-;;; This code started from the following message of long time ago
-;;; (IZ), but Bob does not maintain this mode any more:
-
-;;; From: olson@mcs.anl.gov (Bob Olson)
-;;; Newsgroups: comp.lang.perl
-;;; Subject: cperl-mode: Another perl mode for Gnuemacs
-;;; Date: 14 Aug 91 15:20:01 GMT
-
-;; Copyright (C) Ilya Zakharevich and Bob Olson
-
-;; This file may be distributed
-;; either under the same terms as GNU Emacs, or under the same terms
-;; as Perl. You should have received a copy of Perl Artistic license
-;; along with the Perl distribution.
-
-;; GNU Emacs is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 2, or (at your option)
-;; any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;; GNU General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Corrections made by Ilya Zakharevich cperl@ilyaz.org
-;;; XEmacs changes by Peter Arius arius@informatik.uni-erlangen.de
-
-;;; Commentary:
-
-;; $Id: cperl-mode.el,v 5.16 2006/02/21 11:18:21 vera Exp vera $
-
-;;; If your Emacs does not default to `cperl-mode' on Perl files:
-;;; To use this mode put the following into
-;;; your .emacs file:
-
-;; (autoload 'perl-mode "cperl-mode" "alternate mode for editing Perl programs" t)
-
-;; You can either fine-tune the bells and whistles of this mode or
-;; bulk enable them by putting
-
-;; (setq cperl-hairy t)
-
-;; in your .emacs file. (Emacs rulers do not consider it politically
-;; correct to make whistles enabled by default.)
-
-;; DO NOT FORGET to read micro-docs (available from `Perl' menu) <<<<<<
-;; or as help on variables `cperl-tips', `cperl-problems', <<<<<<
-;; `cperl-non-problems', `cperl-praise', `cperl-speed'. <<<<<<
-
-;; Additional useful commands to put into your .emacs file (before
-;; RMS Emacs 20.3):
-
-;; (setq auto-mode-alist
-;; (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode)) auto-mode-alist ))
-;; (setq interpreter-mode-alist (append interpreter-mode-alist
-;; '(("miniperl" . perl-mode))))
-
-;; The mode information (on C-h m) provides some customization help.
-;; If you use font-lock feature of this mode, it is advisable to use
-;; either lazy-lock-mode or fast-lock-mode. I prefer lazy-lock.
-
-;; Faces used now: three faces for first-class and second-class keywords
-;; and control flow words, one for each: comments, string, labels,
-;; functions definitions and packages, arrays, hashes, and variable
-;; definitions. If you do not see all these faces, your font-lock does
-;; not define them, so you need to define them manually.
-;; Maybe you have an obsolete font-lock from 19.28 or earlier. Upgrade.
-
-;; If you have a grayscale monitor, and do not have the variable
-;; font-lock-display-type bound to 'grayscale, insert
-
-;; (setq font-lock-display-type 'grayscale)
-
-;; into your .emacs file (this is relevant before RMS Emacs 20).
-
-;; This mode supports font-lock, imenu and mode-compile. In the
-;; hairy version font-lock is on, but you should activate imenu
-;; yourself (note that mode-compile is not standard yet). Well, you
-;; can use imenu from keyboard anyway (M-x imenu), but it is better
-;; to bind it like that:
-
-;; (define-key global-map [M-S-down-mouse-3] 'imenu)
-
-;;; Font lock bugs as of v4.32:
-
-;; The following kinds of Perl code erroneously start strings:
-;; \$` \$' \$"
-;; $opt::s $opt_s $opt{s} (s => ...) /\s+.../
-;; likewise with m, tr, y, q, qX instead of s
-
-;;; In fact the version of font-lock that this version supports can be
-;;; much newer than the version you actually have. This means that a
-;;; lot of faces can be set up, but are not visible on your screen
-;;; since the coloring rules for this faces are not defined.
-
-;;; Updates: ========================================
-
-;;; Made less hairy by default: parentheses not electric,
-;;; linefeed not magic. Bug with abbrev-mode corrected.
-
-;;;; After 1.4:
-;;; Better indentation:
-;;; subs inside braces should work now,
-;;; Toplevel braces obey customization.
-;;; indent-for-comment knows about bad cases, cperl-indent-for-comment
-;;; moves cursor to a correct place.
-;;; cperl-indent-exp written from the scratch! Slow... (quadratic!) :-(
-;;; (50 secs on DB::DB (sub of 430 lines), 486/66)
-;;; Minor documentation fixes.
-;;; Imenu understands packages as prefixes (including nested).
-;;; Hairy options can be switched off one-by-one by setting to null.
-;;; Names of functions and variables changed to conform to `cperl-' style.
-
-;;;; After 1.5:
-;;; Some bugs with indentation of labels (and embedded subs) corrected.
-;;; `cperl-indent-region' done (slow :-()).
-;;; `cperl-fill-paragraph' done.
-;;; Better package support for `imenu'.
-;;; Progress indicator for indentation (with `imenu' loaded).
-;;; `Cperl-set' was busted, now setting the individual hairy option
-;;; should be better.
-
-;;;; After 1.6:
-;;; `cperl-set-style' done.
-;;; `cperl-check-syntax' done.
-;;; Menu done.
-;;; New config variables `cperl-close-paren-offset' and `cperl-comment-column'.
-;;; Bugs with `cperl-auto-newline' corrected.
-;;; `cperl-electric-lbrace' can work with `cperl-auto-newline' in situation
-;;; like $hash{.
-
-;;;; 1.7 XEmacs (arius@informatik.uni-erlangen.de):
-;;; - use `next-command-event', if `next-command-events' does not exist
-;;; - use `find-face' as def. of `is-face'
-;;; - corrected def. of `x-color-defined-p'
-;;; - added const defs for font-lock-comment-face,
-;;; font-lock-keyword-face and font-lock-function-name-face
-;;; - added def. of font-lock-variable-name-face
-;;; - added (require 'easymenu) inside an `eval-when-compile'
-;;; - replaced 4-argument `substitute-key-definition' with ordinary
-;;; `define-key's
-;;; - replaced `mark-active' in menu definition by `cperl-use-region-p'.
-;;; Todo (at least):
-;;; - use emacs-vers.el (http://www.cs.utah.edu/~eeide/emacs/emacs-vers.el.gz)
-;;; for portable code?
-;;; - should `cperl-mode' do a
-;;; (if (featurep 'easymenu) (easy-menu-add cperl-menu))
-;;; or should this be left to the user's `cperl-mode-hook'?
-
-;;; Some bugs introduced by the above fix corrected (IZ ;-).
-;;; Some bugs under XEmacs introduced by the correction corrected.
-
-;;; Some more can remain since there are two many different variants.
-;;; Please feedback!
-
-;;; We do not support fontification of arrays and hashes under
-;;; obsolete font-lock any more. Upgrade.
-
-;;;; after 1.8 Minor bug with parentheses.
-;;;; after 1.9 Improvements from Joe Marzot.
-;;;; after 1.10
-;;; Does not need easymenu to compile under XEmacs.
-;;; `vc-insert-headers' should work better.
-;;; Should work with 19.29 and 19.12.
-;;; Small improvements to fontification.
-;;; Expansion of keywords does not depend on C-? being backspace.
-
-;;; after 1.10+
-;;; 19.29 and 19.12 supported.
-;;; `cperl-font-lock-enhanced' deprecated. Use font-lock-extra.el.
-;;; Support for font-lock-extra.el.
-
-;;;; After 1.11:
-;;; Tools submenu.
-;;; Support for perl5-info.
-;;; `imenu-go-find-at-position' in Tools requires imenu-go.el (see hints above)
-;;; Imenu entries do not work with stock imenu.el. Patch sent to maintainers.
-;;; Fontifies `require a if b;', __DATA__.
-;;; Arglist for auto-fill-mode was incorrect.
-
-;;;; After 1.12:
-;;; `cperl-lineup-step' and `cperl-lineup' added: lineup constructions
-;;; vertically.
-;;; `cperl-do-auto-fill' updated for 19.29 style.
-;;; `cperl-info-on-command' now has a default.
-;;; Workaround for broken C-h on XEmacs.
-;;; VC strings escaped.
-;;; C-h f now may prompt for function name instead of going on,
-;;; controlled by `cperl-info-on-command-no-prompt'.
-
-;;;; After 1.13:
-;;; Msb buffer list includes perl files
-;;; Indent-for-comment uses indent-to
-;;; Can write tag files using etags.
-
-;;;; After 1.14:
-;;; Recognizes (tries to ;-) {...} which are not blocks during indentation.
-;;; `cperl-close-paren-offset' affects ?\] too (and ?\} if not block)
-;;; Bug with auto-filling comments started with "##" corrected.
-
-;;;; Very slow now: on DB::DB 0.91, 486/66:
-
-;;;Function Name Call Count Elapsed Time Average Time
-;;;======================================== ========== ============ ============
-;;;cperl-block-p 469 3.7799999999 0.0080597014
-;;;cperl-get-state 505 163.39000000 0.3235445544
-;;;cperl-comment-indent 12 0.0299999999 0.0024999999
-;;;cperl-backward-to-noncomment 939 4.4599999999 0.0047497337
-;;;cperl-calculate-indent 505 172.22000000 0.3410297029
-;;;cperl-indent-line 505 172.88000000 0.3423366336
-;;;cperl-use-region-p 40 0.0299999999 0.0007499999
-;;;cperl-indent-exp 1 177.97000000 177.97000000
-;;;cperl-to-comment-or-eol 1453 3.9800000000 0.0027391603
-;;;cperl-backward-to-start-of-continued-exp 9 0.0300000000 0.0033333333
-;;;cperl-indent-region 1 177.94000000 177.94000000
-
-;;;; After 1.15:
-;;; Takes into account white space after opening parentheses during indent.
-;;; May highlight pods and here-documents: see `cperl-pod-here-scan',
-;;; `cperl-pod-here-fontify', `cperl-pod-face'. Does not use this info
-;;; for indentation so far.
-;;; Fontification updated to 19.30 style.
-;;; The change 19.29->30 did not add all the required functionality,
-;;; but broke "font-lock-extra.el". Get "choose-color.el" from
-;;; http://ilyaz.org/software/emacs
-
-;;;; After 1.16:
-;;; else # comment
-;;; recognized as a start of a block.
-;;; Two different font-lock-levels provided.
-;;; `cperl-pod-head-face' introduced. Used for highlighting.
-;;; `imenu' marks pods, +Packages moved to the head.
-
-;;;; After 1.17:
-;;; Scan for pods highlights here-docs too.
-;;; Note that the tag of here-doc may be rehighlighted later by lazy-lock.
-;;; Only one here-doc-tag per line is supported, and one in comment
-;;; or a string may break fontification.
-;;; POD headers were supposed to fill one line only.
-
-;;;; After 1.18:
-;;; `font-lock-keywords' were set in 19.30 style _always_. Current scheme
-;;; may break under XEmacs.
-;;; `cperl-calculate-indent' dis suppose that `parse-start' was defined.
-;;; `fontified' tag is added to fontified text as well as `lazy-lock' (for
-;;; compatibility with older lazy-lock.el) (older one overfontifies
-;;; something nevertheless :-().
-;;; Will not indent something inside pod and here-documents.
-;;; Fontifies the package name after import/no/bootstrap.
-;;; Added new entry to menu with meta-info about the mode.
-
-;;;; After 1.19:
-;;; Prefontification works much better with 19.29. Should be checked
-;;; with 19.30 as well.
-;;; Some misprints in docs corrected.
-;;; Now $a{-text} and -text => "blah" are fontified as strings too.
-;;; Now the pod search is much stricter, so it can help you to find
-;;; pod sections which are broken because of whitespace before =blah
-;;; - just observe the fontification.
-
-;;;; After 1.20
-;;; Anonymous subs are indented with respect to the level of
-;;; indentation of `sub' now.
-;;; {} is recognized as hash after `bless' and `return'.
-;;; Anonymous subs are split by `cperl-linefeed' as well.
-;;; Electric parens embrace a region if present.
-;;; To make `cperl-auto-newline' useful,
-;;; `cperl-auto-newline-after-colon' is introduced.
-;;; `cperl-electric-parens' is now t or nul. The old meaning is moved to
-;;; `cperl-electric-parens-string'.
-;;; `cperl-toggle-auto-newline' introduced, put on C-c C-a.
-;;; `cperl-toggle-abbrev' introduced, put on C-c C-k.
-;;; `cperl-toggle-electric' introduced, put on C-c C-e.
-;;; Beginning-of-defun-regexp was not anchored.
-
-;;;; After 1.21
-;;; Auto-newline grants `cperl-extra-newline-before-brace' if "{" is typed
-;;; after ")".
-;;; {} is recognized as expression after `tr' and friends.
-
-;;;; After 1.22
-;;; Entry Hierarchy added to imenu. Very primitive so far.
-;;; One needs newer `imenu-go'.el. A patch to `imenu' is needed as well.
-;;; Writes its own TAGS files.
-;;; Class viewer based on TAGS files. Does not trace @ISA so far.
-;;; 19.31: Problems with scan for PODs corrected.
-;;; First POD header correctly fontified.
-;;; I needed (setq imenu-use-keymap-menu t) to get good imenu in 19.31.
-;;; Apparently it makes a lot of hierarchy code obsolete...
-
-;;;; After 1.23
-;;; Tags filler now scans *.xs as well.
-;;; The info from *.xs scan is used by the hierarchy viewer.
-;;; Hierarchy viewer documented.
-;;; Bug in 19.31 imenu documented.
-
-;;;; After 1.24
-;;; New location for info-files mentioned,
-;;; Electric-; should work better.
-;;; Minor bugs with POD marking.
-
-;;;; After 1.25 (probably not...)
-;;; `cperl-info-page' introduced.
-;;; To make `uncomment-region' working, `comment-region' would
-;;; not insert extra space.
-;;; Here documents delimiters better recognized
-;;; (empty one, and non-alphanums in quotes handled). May be wrong with 1<<14?
-;;; `cperl-db' added, used in menu.
-;;; imenu scan removes text-properties, for better debugging
-;;; - but the bug is in 19.31 imenu.
-;;; formats highlighted by font-lock and prescan, embedded comments
-;;; are not treated.
-;;; POD/friends scan merged in one pass.
-;;; Syntax class is not used for analyzing the code, only char-syntax
-;;; may be checked against _ or'ed with w.
-;;; Syntax class of `:' changed to be _.
-;;; `cperl-find-bad-style' added.
-
-;;;; After 1.25
-;;; When search for here-documents, we ignore commented << in simplest cases.
-;;; `cperl-get-help' added, available on C-h v and from menu.
-;;; Auto-help added. Default with `cperl-hairy', switchable on/off
-;;; with startup variable `cperl-lazy-help-time' and from
-;;; menu. Requires `run-with-idle-timer'.
-;;; Highlighting of @abc{@efg} was wrong - interchanged two regexps.
-
-;;;; After 1.27
-;;; Indentation: At toplevel after a label - fixed.
-;;; 1.27 was put to archives in binary mode ===> DOSish :-(
-
-;;;; After 1.28
-;;; Thanks to Martin Buchholz <mrb@Eng.Sun.COM>: misprints in
-;;; comments and docstrings corrected, XEmacs support cleaned up.
-;;; The closing parenths would enclose the region into matching
-;;; parens under the same conditions as the opening ones.
-;;; Minor updates to `cperl-short-docs'.
-;;; Will not consider <<= as start of here-doc.
-
-;;;; After 1.29
-;;; Added an extra advice to look into Micro-docs. ;-).
-;;; Enclosing of region when you press a closing parenth is regulated by
-;;; `cperl-electric-parens-string'.
-;;; Minor updates to `cperl-short-docs'.
-;;; `initialize-new-tags-table' called only if present (Does this help
-;;; with generation of tags under XEmacs?).
-;;; When creating/updating tag files, new info is written at the old place,
-;;; or at the end (is this a wanted behaviour? I need this in perl build directory).
-
-;;;; After 1.30
-;;; All the keywords from keywords.pl included (maybe with dummy explanation).
-;;; No auto-help inside strings, comment, here-docs, formats, and pods.
-;;; Shrinkwrapping of info, regulated by `cperl-max-help-size',
-;;; `cperl-shrink-wrap-info-frame'.
-;;; Info on variables as well.
-;;; Recognision of HERE-DOCS improved yet more.
-;;; Autonewline works on `}' without warnings.
-;;; Autohelp works again on $_[0].
-
-;;;; After 1.31
-;;; perl-descr.el found its author - hi, Johan!
-;;; Some support for correct indent after here-docs and friends (may
-;;; be superseeded by eminent change to Emacs internals).
-;;; Should work with older Emaxen as well ( `-style stuff removed).
-
-;;;; After 1.32
-
-;;; Started to add support for `syntax-table' property (should work
-;;; with patched Emaxen), controlled by
-;;; `cperl-use-syntax-table-text-property'. Currently recognized:
-;;; All quote-like operators: m, s, y, tr, qq, qw, qx, q,
-;;; // in most frequent context:
-;;; after block or
-;;; ~ { ( = | & + - * ! , ;
-;;; or
-;;; while if unless until and or not xor split grep map
-;;; Here-documents, formats, PODs,
-;;; ${...}
-;;; 'abc$'
-;;; sub a ($); sub a ($) {}
-;;; (provide 'cperl-mode) was missing!
-;;; `cperl-after-expr-p' is now much smarter after `}'.
-;;; `cperl-praise' added to mini-docs.
-;;; Utilities try to support subs-with-prototypes.
-
-;;;; After 1.32.1
-;;; `cperl-after-expr-p' is now much smarter after "() {}" and "word {}":
-;;; if word is "else, map, grep".
-;;; Updated for new values of syntax-table constants.
-;;; Uses `help-char' (at last!) (disabled, does not work?!)
-;;; A couple of regexps where missing _ in character classes.
-;;; -s could be considered as start of regexp, 1../blah/ was not,
-;;; as was not /blah/ at start of file.
-
-;;;; After 1.32.2
-;;; "\C-hv" was wrongly "\C-hf"
-;;; C-hv was not working on `[index()]' because of [] in skip-chars-*.
-;;; `__PACKAGE__' supported.
-;;; Thanks for Greg Badros: `cperl-lazy-unstall' is more complete,
-;;; `cperl-get-help' is made compatible with `query-replace'.
-
-;;;; As of Apr 15, development version of 19.34 supports
-;;;; `syntax-table' text properties. Try setting
-;;;; `cperl-use-syntax-table-text-property'.
-
-;;;; After 1.32.3
-;;; We scan for s{}[] as well (in simplest situations).
-;;; We scan for $blah'foo as well.
-;;; The default is to use `syntax-table' text property if Emacs is good enough.
-;;; `cperl-lineup' is put on C-M-| (=C-M-S-\\).
-;;; Start of `cperl-beautify-regexp'.
-
-;;;; After 1.32.4
-;;; `cperl-tags-hier-init' did not work in text-mode.
-;;; `cperl-noscan-files-regexp' had a misprint.
-;;; Generation of Class Hierarchy was broken due to a bug in `x-popup-menu'
-;;; in 19.34.
-
-;;;; After 1.33:
-;;; my,local highlight vars after {} too.
-;;; TAGS could not be created before imenu was loaded.
-;;; `cperl-indent-left-aligned-comments' created.
-;;; Logic of `cperl-indent-exp' changed a little bit, should be more
-;;; robust w.r.t. multiline strings.
-;;; Recognition of blah'foo takes into account strings.
-;;; Added '.al' to the list of Perl extensions.
-;;; Class hierarchy is "mostly" sorted (need to rethink algorthm
-;;; of pruning one-root-branch subtrees to get yet better sorting.)
-;;; Regeneration of TAGS was busted.
-;;; Can use `syntax-table' property when generating TAGS
-;;; (governed by `cperl-use-syntax-table-text-property-for-tags').
-
-;;;; After 1.35:
-;;; Can process several =pod/=cut sections one after another.
-;;; Knows of `extproc' when under `emx', indents with `__END__' and `__DATA__'.
-;;; `cperl-under-as-char' implemented (XEmacs people like broken behaviour).
-;;; Beautifier for regexps fixed.
-;;; `cperl-beautify-level', `cperl-contract-level' coded
-;;;
-;;;; Emacs's 20.2 problems:
-;;; `imenu.el' has bugs, `imenu-add-to-menubar' does not work.
-;;; Couple of others problems with 20.2 were reported, my ability to check/fix
-;;; them is very reduced now.
-
-;;;; After 1.36:
-;;; 'C-M-|' in XEmacs fixed
-
-;;;; After 1.37:
-;;; &&s was not recognized as start of regular expression;
-;;; Will "preprocess" the contents of //e part of s///e too;
-;;; What to do with s# blah # foo #e ?
-;;; Should handle s;blah;foo;; better.
-;;; Now the only known problems with regular expression recognition:
-;;;;;;; s<foo>/bar/ - different delimiters (end ignored)
-;;;;;;; s/foo/\\bar/ - backslash at start of subst (made into one chunk)
-;;;;;;; s/foo// - empty subst (made into one chunk + '/')
-;;;;;;; s/foo/(bar)/ - start-group at start of subst (internal group will not match backwards)
-
-;;;; After 1.38:
-;;; We highlight closing / of s/blah/foo/e;
-;;; This handles s# blah # foo #e too;
-;;; s//blah/, s///, s/blah// works again, and s#blah## too, the algorithm
-;;; is much simpler now;
-;;; Next round of changes: s\\\ works, s<blah>/foo/,
-;;; comments between the first and the second part allowed
-;;; Another problem discovered:
-;;;;;;; s[foo] <blah>e - e part delimited by different <> (will not match)
-;;; `cperl-find-pods-heres' somehow maybe called when string-face is undefined
-;;; - put a stupid workaround for 20.1
-
-;;;; After 1.39:
-;;; Could indent here-docs for comments;
-;;; These problems fixed:
-;;;;;;; s/foo/\\bar/ - backslash at start of subst (made into two chunk)
-;;;;;;; s[foo] <blah>e - "e" part delimited by "different" <> (will match)
-;;; Matching brackets honor prefices, may expand abbreviations;
-;;; When expanding abbrevs, will remove last char only after
-;;; self-inserted whitespace;
-;;; More convenient "Refress hard constructs" in menu;
-;;; `cperl-add-tags-recurse', `cperl-add-tags-recurse-noxs'
-;;; added (for -batch mode);
-;;; Better handling of errors when scanning for Perl constructs;
-;;;;;;; Possible "problem" with class hierarchy in Perl distribution
-;;;;;;; directory: ./ext duplicates ./lib;
-;;; Write relative paths for generated TAGS;
-
-;;;; After 1.40:
-;;; s /// may be separated by "\n\f" too;
-;;; `s #blah' recognized as a comment;
-;;; Would highlight s/abc//s wrong;
-;;; Debugging code in `cperl-electric-keywords' was leaking a message;
-
-;;;; After 1.41:
-;;; RMS changes for 20.3 merged
-
-;;;; 2.0.1.0: RMS mode (has 3 misprints)
-
-;;;; After 2.0:
-;;; RMS whitespace changes for 20.3 merged
-
-;;;; After 2.1:
-;;; History updated
-
-;;;; After 2.2:
-;;; Merge `c-style-alist' since `c-mode' is no more. (Somebody who
-;;; uses the styles should check that they work OK!)
-;;; All the variable warnings go away, some undef functions too.
-
-;;;; After 2.3:
-;;; Added `cperl-perldoc' (thanks to Anthony Foiani <afoiani@uswest.com>)
-;;; Added `cperl-pod-to-manpage' (thanks to Nick Roberts <Nick.Roberts@src.bae.co.uk>)
-;;; All the function warnings go away.
-
-;;;; After 2.4:
-;;; `Perl doc', `Regexp' submenus created (latter to allow short displays).
-;;; `cperl-clobber-lisp-bindings' added.
-;;; $a->y() is not y///.
-;;; `cperl-after-block-p' was missing a `save-excursion' => wrong results.
-;;; `cperl-val' was defined too late.
-;;; `cperl-init-faces' was failing.
-;;; Init faces when loading `ps-print'.
-
-;;;; After 2.4:
-;;; `cperl-toggle-autohelp' implemented.
-;;; `while SPACE LESS' was buggy.
-;;; `-text' in `[-text => 1]' was not highlighted.
-;;; `cperl-after-block-p' was FALSE after `sub f {}'.
-
-;;;; After 2.5:
-;;; `foreachmy', `formy' expanded too.
-;;; Expand `=pod-directive'.
-;;; `cperl-linefeed' behaves reasonable in POD-directive lines.
-;;; `cperl-electric-keyword' prints a message, governed by
-;;; `cperl-message-electric-keyword'.
-
-;;;; After 2.6:
-;;; Typing `}' was not checking for being block or not.
-;;; Beautifying levels in RE: Did not know about lookbehind;
-;;; finding *which* level was not intuitive;
-;;; `cperl-beautify-levels' added.
-;;; Allow here-docs contain `=head1' and friends (at least for keywords).
-
-;;;; After 2.7:
-;;; Fix for broken `font-lock-unfontify-region-function'. Should
-;;; preserve `syntax-table' properties even with `lazy-lock'.
-
-;;;; After 2.8:
-;;; Some more compile time warnings crept in.
-;;; `cperl-indent-region-fix-else' implemented.
-;;; `cperl-fix-line-spacing' implemented.
-;;; `cperl-invert-if-unless' implemented (C-c C-t and in Menu).
-;;; Upgraded hints to mention 20.2's goods/bads.
-;;; Started to use `cperl-extra-newline-before-brace-multiline',
-;;; `cperl-break-one-line-blocks-when-indent',
-;;; `cperl-fix-hanging-brace-when-indent', `cperl-merge-trailing-else'.
-
-;;;; After 2.9:
-;;; Workaround for another `font-lock's `syntax-table' text-property bug.
-;;; `zerop' could be applied to nil.
-;;; At last, may work with `font-lock' without setting `cperl-font-lock'.
-;;; (We expect that starting from 19.33, `font-lock' supports keywords
-;;; being a function - what is a correct version?)
-;;; Rename `cperl-indent-region-fix-else' to
-;;; `cperl-indent-region-fix-constructs'.
-;;; `cperl-fix-line-spacing' could be triggered inside strings, would not
-;;; know what to do with BLOCKs of map/printf/etc.
-;;; `cperl-merge-trailing-else' and `cperl-fix-line-spacing' handle
-;;; `continue' too.
-;;; Indentation after {BLOCK} knows about map/printf/etc.
-;;; Finally: treat after-comma lines as continuation lines.
-
-;;;; After 2.10:
-;;; `continue' made electric.
-;;; Electric `do' inserts `do/while'.
-;;; Some extra compile-time warnings crept in.
-;;; `font-lock' of 19.33 could not handle font-lock-keywords being a function
-;;; returning a symbol.
-
-;;;; After 2.11:
-;;; Changes to make syntaxification to be autoredone via `font-lock'.
-;;; Switched on by `cperl-syntaxify-by-font-lock', off by default so far.
-
-;;;; After 2.12:
-;;; Remove some commented out chunks.
-;;; Styles are slightly updated (a lot of work is needed, especially
-;;; with new `cperl-fix-line-spacing').
-
-;;;; After 2.13:
-;;; Old value of style is memorized when choosing a new style, may be
-;;; restored from the same menu.
-;;; Mode-documentation added to micro-docs.
-;;; `cperl-praise' updated.
-;;; `cperl-toggle-construct-fix' added on C-c C-w and menu.
-;;; `auto-fill-mode' added on C-c C-f and menu.
-;;; `PerlStyle' style added.
-;;; Message for termination of scan corrected.
-
-;;;; After 2.14:
-
-;;; Did not work with -q
-
-;;;; After 2.15:
-
-;;; `cperl-speed' hints added.
-;;; Minor style fixes.
-
-;;;; After 2.15:
-;;; Make backspace electric after expansion of `else/continue' too.
-
-;;;; After 2.16:
-;;; Starting to merge changes to RMS emacs version.
-
-;;;; After 2.17:
-;;; Merged custom stuff and darn `font-lock-constant-face'.
-
-;;;; After 2.18:
-;;; Bumped the version to 3.1
-
-;;;; After 3.1:
-;;; Fixed customization to honor cperl-hairy.
-;;; Created customization groups. Sent to RMS to include into 2.3.
-
-;;;; After 3.2:
-;;; Interaction of `font-lock-hot-pass' and `cperl-syntaxify-by-font-lock'.
-;;; (`cperl-after-block-and-statement-beg'):
-;;; (`cperl-after-block-p'):
-;;; (`cperl-after-expr-p'): It is BLOCK if we reach lim when backup sexp.
-;;; (`cperl-indent-region'): Make a marker for END - text added/removed.
-;;; (`cperl-style-alist', `cperl-styles-entries')
-;;; Include `cperl-merge-trailing-else' where the value is clear.
-
-;;;; After 3.3:
-;;; (`cperl-tips'):
-;;; (`cperl-problems'): Improvements to docs.
-
-;;;; After 3.4:
-;;; (`cperl-mode'): Make lazy syntaxification possible.
-;;; (`cperl-find-pods-heres'): Safe a position in buffer where it is safe to
-;;; restart syntaxification.
-;;; (`cperl-syntaxify-by-font-lock'): Set to t, should be safe now.
-
-;;;; After 3.5:
-;;; (`cperl-syntaxify-by-font-lock'): Better default, customizes to
-;;; `message' too.
-
-;;;; After 3.6:
-;;; (`cperl-find-pods-heres'): changed so that -d ?foo? is a RE.
-;;; (`cperl-array-face'): changed name from `font-lock-emphasized-face'.
-;;; (`cperl-hash-face'): changed name from `font-lock-other-emphasized-face'.
-;;; Use `defface' to define these two extra faces.
-
-;;;; After 3.7:
-;;; Can use linear algorithm for indentation if Emacs supports it:
-;;; indenting DB::DB (800+ lines) improved from 69 sec to 11 sec
-;;; (73 vs 15 with imenu).
-;;; (`cperl-emacs-can-parse'): New state.
-;;; (`cperl-indent-line'): Corrected to use global state.
-;;; (`cperl-calculate-indent'): Likewise.
-;;; (`cperl-fix-line-spacing'): Likewise (not used yet).
-
-;;;; After 3.8:
-;;; (`cperl-choose-color'): Converted to a function (to be compilable in text-mode).
-
-;;;; After 3.9:
-;;; (`cperl-dark-background '): Disable without window-system.
-
-;;;; After 3.10:
-;;; Do `defface' only if window-system.
-
-;;;; After 3.11:
-;;; (`cperl-fix-line-spacing'): sped up to bail out early.
-;;; (`cperl-indent-region'): Disable hooks during the call (how to call them later?).
-
-;;; Now indents 820-line-long function in 6.5 sec (including syntaxification) the first time
-;;; (when buffer has few properties), 7.1 sec the second time.
-
-;;;Function Name Call Count Elapsed Time Average Time
-;;;========================================= ========== ============ ============
-;;;cperl-indent-exp 1 10.039999999 10.039999999
-;;;cperl-indent-region 1 10.0 10.0
-;;;cperl-indent-line 821 6.2100000000 0.0075639464
-;;;cperl-calculate-indent 821 5.0199999999 0.0061144945
-;;;cperl-backward-to-noncomment 2856 2.0500000000 0.0007177871
-;;;cperl-fontify-syntaxically 2 1.78 0.8900000000
-;;;cperl-find-pods-heres 2 1.78 0.8900000000
-;;;cperl-update-syntaxification 1 1.78 1.78
-;;;cperl-fix-line-spacing 769 1.4800000000 0.0019245773
-;;;cperl-after-block-and-statement-beg 163 1.4100000000 0.0086503067
-;;;cperl-block-p 775 1.1800000000 0.0015225806
-;;;cperl-to-comment-or-eol 3652 1.1200000000 0.0003066812
-;;;cperl-after-block-p 165 1.0500000000 0.0063636363
-;;;cperl-commentify 141 0.22 0.0015602836
-;;;cperl-get-state 813 0.16 0.0001968019
-;;;cperl-backward-to-start-of-continued-exp 26 0.12 0.0046153846
-;;;cperl-delay-update-hook 2107 0.0899999999 4.271...e-05
-;;;cperl-protect-defun-start 141 0.0700000000 0.0004964539
-;;;cperl-after-label 407 0.0599999999 0.0001474201
-;;;cperl-forward-re 139 0.0299999999 0.0002158273
-;;;cperl-comment-indent 26 0.0299999999 0.0011538461
-;;;cperl-use-region-p 8 0.0 0.0
-;;;cperl-lazy-hook 15 0.0 0.0
-;;;cperl-after-expr-p 8 0.0 0.0
-;;;cperl-font-lock-unfontify-region-function 1 0.0 0.0
-
-;;;Function Name Call Count Elapsed Time Average Time
-;;;========================================= ========== ============ ============
-;;;cperl-fix-line-spacing 769 1.4500000000 0.0018855656
-;;;cperl-indent-line 13 0.3100000000 0.0238461538
-;;;cperl-after-block-and-statement-beg 69 0.2700000000 0.0039130434
-;;;cperl-after-block-p 69 0.2099999999 0.0030434782
-;;;cperl-calculate-indent 13 0.1000000000 0.0076923076
-;;;cperl-backward-to-noncomment 177 0.0700000000 0.0003954802
-;;;cperl-get-state 13 0.0 0.0
-;;;cperl-to-comment-or-eol 179 0.0 0.0
-;;;cperl-get-help-defer 1 0.0 0.0
-;;;cperl-lazy-hook 11 0.0 0.0
-;;;cperl-after-expr-p 2 0.0 0.0
-;;;cperl-block-p 13 0.0 0.0
-;;;cperl-after-label 5 0.0 0.0
-
-;;;; After 3.12:
-;;; (`cperl-find-pods-heres'): do not warn on `=cut' if doing a chunk only.
-
-;;;; After 3.13:
-;;; (`cperl-mode'): load pseudo-faces on `cperl-find-pods-heres' (for 19.30).
-;;; (`x-color-defined-p'): was not compiling on XEmacs
-;;; (`cperl-find-pods-heres'): 1 << 6 was OK, but 1<<6 was considered as HERE
-;;; <file/glob> made into a string.
-
-;;;; After 3.14:
-;;; (`cperl-find-pods-heres'): Postpone addition of faces after syntactic step
-;;; Recognition of <FH> was wrong.
-;;; (`cperl-clobber-lisp-bindings'): if set, C-c variants are the old ones
-;;; (`cperl-unwind-to-safe'): New function.
-;;; (`cperl-fontify-syntaxically'): Use `cperl-unwind-to-safe' to start at reasonable position.
-
-;;;; After 3.15:
-;;; (`cperl-forward-re'): Highlight the trailing / in s/foo// as string.
-;;; Highlight the starting // in s//foo/ as function-name.
-
-;;;; After 3.16:
-;;; (`cperl-find-pods-heres'): Highlight `gem' in s///gem as a keyword.
-
-;;;; After 4.0:
-;;; (`cperl-find-pods-heres'): `qr' added
-;;; (`cperl-electric-keyword'): Likewise
-;;; (`cperl-electric-else'): Likewise
-;;; (`cperl-to-comment-or-eol'): Likewise
-;;; (`cperl-make-regexp-x'): Likewise
-;;; (`cperl-init-faces'): Likewise, and `lock' (as overridable?).
-;;; (`cperl-find-pods-heres'): Knows that split// is null-RE.
-;;; Highlights separators in 3-parts expressions
-;;; as labels.
-
-;;;; After 4.1:
-;;; (`cperl-find-pods-heres'): <> was considered as a glob
-;;; (`cperl-syntaxify-unwind'): New configuration variable
-;;; (`cperl-fontify-m-as-s'): New configuration variable
-
-;;;; After 4.2:
-;;; (`cperl-find-pods-heres'): of the last line being `=head1' fixed.
-
-;;; Handling of a long construct is still buggy if only the part of
-;;; construct touches the updated region (we unwind to the start of
-;;; long construct, but the end may have residual properties).
-
-;;; (`cperl-unwind-to-safe'): would not go to beginning of buffer.
-;;; (`cperl-electric-pod'): check for after-expr was performed
-;;; inside of POD too.
-
-;;;; After 4.3:
-;;; (`cperl-backward-to-noncomment'): better treatment of PODs and HEREs.
-
-;;; Indent-line works good, but indent-region does not - at toplevel...
-;;; (`cperl-unwind-to-safe'): Signature changed.
-;;; (`x-color-defined-p'): was defmacro'ed with a tick. Remove another def.
-;;; (`cperl-clobber-mode-lists'): New configuration variable.
-;;; (`cperl-array-face'): One of definitions was garbled.
-
-;;;; After 4.4:
-;;; (`cperl-not-bad-style-regexp'): Updated.
-;;; (`cperl-make-regexp-x'): Misprint in a message.
-;;; (`cperl-find-pods-heres'): $a-1 ? foo : bar; was a regexp.
-;;; `<< (' was considered a start of POD.
-;;; Init: `cperl-is-face' was busted.
-;;; (`cperl-make-face'): New macros.
-;;; (`cperl-force-face'): New macros.
-;;; (`cperl-init-faces'): Corrected to use new macros;
-;;; `if' for copying `reference-face' to
-;;; `constant-face' was backward.
-;;; (`font-lock-other-type-face'): Done via `defface' too.
-
-;;;; After 4.5:
-;;; (`cperl-init-faces-weak'): use `cperl-force-face'.
-;;; (`cperl-after-block-p'): After END/BEGIN we are a block.
-;;; (`cperl-mode'): `font-lock-unfontify-region-function'
-;;; was set to a wrong function.
-;;; (`cperl-comment-indent'): Commenting __END__ was not working.
-;;; (`cperl-indent-for-comment'): Likewise.
-;;; (Indenting is still misbehaving at toplevel.)
-
-;;;; After 4.5:
-;;; (`cperl-unwind-to-safe'): Signature changed, unwinds end too.
-;;; (`cperl-find-pods-heres'): mark qq[]-etc sections as syntax-type=string
-;;; (`cperl-fontify-syntaxically'): Unwinds start and end to go out of
-;;; long strings (not very successful).
-
-;;; >>>> CPerl should be usable in write mode too now <<<<
-
-;;; (`cperl-syntaxify-by-font-lock'): Better default - off in text-mode.
-;;; (`cperl-tips'): Updated docs.
-;;; (`cperl-problems'): Updated docs.
-
-;;;; After 4.6:
-;;; (`cperl-calculate-indent'): Did not consider `,' as continuation mark for statements.
-;;; (`cperl-write-tags'): Correct for XEmacs's `visit-tags-table-buffer'.
-
-;;;; After 4.7:
-;;; (`cperl-calculate-indent'): Avoid parse-data optimization at toplevel.
-;;; Should indent correctly at toplevel too.
-;;; (`cperl-tags-hier-init'): Gross hack to pretend we work (are we?).
-;;; (`cperl-find-pods-heres'): Was not processing sub protos after a comment ine.
-;;; Was treating $a++ <= 5 as a glob.
-
-;;;; After 4.8:
-;;; (toplevel): require custom unprotected => failure on 19.28.
-;;; (`cperl-xemacs-p') defined when compile too
-;;; (`cperl-tags-hier-init'): Another try to work around XEmacs problems
-;;; Better progress messages.
-;;; (`cperl-find-tags'): Was writing line/pos in a wrong order,
-;;; pos off by 1 and not at beg-of-line.
-;;; (`cperl-etags-snarf-tag'): New macro
-;;; (`cperl-etags-goto-tag-location'): New macro
-;;; (`cperl-write-tags'): When removing old TAGS info was not
-;;; relativizing filename
-
-;;;; After 4.9:
-;;; (`cperl-version'): New variable. New menu entry
-
-;;;; After 4.10:
-;;; (`cperl-tips'): Updated.
-;;; (`cperl-non-problems'): Updated.
-;;; random: References to future 20.3 removed.
-
-;;;; After 4.11:
-;;; (`perl-font-lock-keywords'): Would not highlight `sub foo($$);'.
-;;; Docstrings: Menu was described as `CPerl' instead of `Perl'
-
-;;;; After 4.12:
-;;; (`cperl-toggle-construct-fix'): Was toggling to t instead of 1.
-;;; (`cperl-ps-print-init'): Associate `cperl-array-face', `cperl-hash-face'
-;;; remove `font-lock-emphasized-face'.
-;;; remove `font-lock-other-emphasized-face'.
-;;; remove `font-lock-reference-face'.
-;;; remove `font-lock-keyword-face'.
-;;; Use `eval-after-load'.
-;;; (`cperl-init-faces'): remove init `font-lock-other-emphasized-face'.
-;;; remove init `font-lock-emphasized-face'.
-;;; remove init `font-lock-keyword-face'.
-;;; (`cperl-tips-faces'): New variable and an entry into Mini-docs.
-;;; (`cperl-indent-region'): Do not indent whitespace lines
-;;; (`cperl-indent-exp'): Was not processing else-blocks.
-;;; (`cperl-calculate-indent'): Remove another parse-data optimization
-;;; at toplevel: would indent correctly.
-;;; (`cperl-get-state'): NOP line removed.
-
-;;;; After 4.13:
-;;; (`cperl-ps-print-init'): Remove not-CPerl-related faces.
-;;; (`cperl-ps-print'): New function and menu entry.
-;;; (`cperl-ps-print-face-properties'): New configuration variable.
-;;; (`cperl-invalid-face'): New configuration variable.
-;;; (`cperl-nonoverridable-face'): New face. Renamed from
-;;; `font-lock-other-type-face'.
-;;; (`perl-font-lock-keywords'): Highlight trailing whitespace
-;;; (`cperl-contract-levels'): Documentation corrected.
-;;; (`cperl-contract-level'): Likewise.
-
-;;;; After 4.14:
-;;; (`cperl-ps-print'): `ps-print-face-extension-alist' was not in old Emaxen,
-;;; same with `ps-extend-face-list'
-;;; (`cperl-ps-extend-face-list'): New macro.
-
-;;;; After 4.15:
-;;; (`cperl-init-faces'): Interpolate `cperl-invalid-face'.
-;;; (`cperl-forward-re'): Emit a meaningful error instead of a cryptic
-;;; one for uncomplete REx near end-of-buffer.
-;;; (`cperl-find-pods-heres'): Tolerate unfinished REx at end-of-buffer.
-
-;;;; After 4.16:
-;;; (`cperl-find-pods-heres'): `unwind-protect' was left commented.
-
-;;;; After 4.17:
-;;; (`cperl-invalid-face'): Change to ''underline.
-
-;;;; After 4.18:
-;;; (`cperl-find-pods-heres'): / and ? after : start a REx.
-;;; (`cperl-after-expr-p'): Skip labels when checking
-;;; (`cperl-calculate-indent'): Correct for labels when calculating
-;;; indentation of continuations.
-;;; Docstring updated.
-
-;;;; After 4.19:
-;;; Minor (mostly spelling) corrections from 20.3.3 merged.
-
-;;;; After 4.20:
-;;; (`cperl-tips'): Another workaround added. Sent to RMS for 20.4.
-
-;;;; After 4.21:
-;;; (`cperl-praise'): Mention linear-time indent.
-;;; (`cperl-find-pods-heres'): @if ? a : b was considered a REx.
-
-;;;; After 4.22:
-;;; (`cperl-after-expr-p'): Make true after __END__.
-;;; (`cperl-electric-pod'): "SYNOPSIS" was misspelled.
-
-;;;; After 4.23:
-;;; (`cperl-beautify-regexp-piece'): Was not allowing for *? after a class.
-;;; Allow for POSIX char-classes.
-;;; Remove trailing whitespace when
-;;; adding new linebreak.
-;;; Add a level counter to stop shallow.
-;;; Indents unprocessed groups rigidly.
-;;; (`cperl-beautify-regexp'): Add an optional count argument to go that
-;;; many levels deep.
-;;; (`cperl-beautify-level'): Likewise
-;;; Menu: Add new entries to Regexp menu to do one level
-;;; (`cperl-contract-level'): Was entering an infinite loop
-;;; (`cperl-find-pods-heres'): Typo (double quoting).
-;;; Was detecting < $file > as FH instead of glob.
-;;; Support for comments in RExen (except
-;;; for m#\#comment#x), governed by
-;;; `cperl-regexp-scan'.
-;;; (`cperl-regexp-scan'): New customization variable.
-;;; (`cperl-forward-re'): Improve logic of resetting syntax table.
-
-;;;; After 4.23 and: After 4.24:
-;;; (`cperl-contract-levels'): Restore position.
-;;; (`cperl-beautify-level'): Likewise.
-;;; (`cperl-beautify-regexp'): Likewise.
-;;; (`cperl-commentify'): Rudimental support for length=1 runs
-;;; (`cperl-find-pods-heres'): Process 1-char long REx comments too /a#/x
-;;; Processes REx-comments in #-delimited RExen.
-;;; MAJOR BUG CORRECTED: after a misparse
-;;; a body of a subroutine could be corrupted!!!
-;;; One might need to reeval the function body
-;;; to fix things. (A similar bug was
-;;; present in `cperl-indent-region' eons ago.)
-;;; To reproduce:
-;; (defun foo () (let ((a '(t))) (insert (format "%s" a)) (setcar a 'BUG) t))
-;; (foo)
-;; (foo)
-;;; C-x C-e the above three lines (at end-of-line). First evaluation
-;;; of `foo' inserts (t), second one inserts (BUG) ?!
-;;;
-;;; In CPerl it was triggered by inserting then deleting `/' at start of
-;;; / a (?# asdf {[(}asdf )ef,/;
-
-;;;; After 4.25:
-;;; (`cperl-commentify'): Was recognizing length=2 "strings" as length=1.
-;;; (`imenu-example--create-perl-index'):
-;;; Was not enforcing syntaxification-to-the-end.
-;;; (`cperl-invert-if-unless'): Allow `for', `foreach'.
-;;; (`cperl-find-pods-heres'): Quote `cperl-nonoverridable-face'.
-;;; Mark qw(), m()x as indentable.
-;;; (`cperl-init-faces'): Highlight `sysopen' too.
-;;; Highlight $var in `for my $var' too.
-;;; (`cperl-invert-if-unless'): Was leaving whitespace at end.
-;;; (`cperl-linefeed'): Was splitting $var{$foo} if point after `{'.
-;;; (`cperl-calculate-indent'): Remove old commented out code.
-;;; Support (primitive) indentation of qw(), m()x.
-
-
-;;;; After 4.26:
-;;; (`cperl-problems'): Mention `fill-paragraph' on comment. \"" and
-;;; q [] with intervening newlines.
-;;; (`cperl-autoindent-on-semi'): New customization variable.
-;;; (`cperl-electric-semi'): Use `cperl-autoindent-on-semi'.
-;;; (`cperl-tips'): Mention how to make CPerl the default mode.
-;;; (`cperl-mode'): Support `outline-minor-mode'
-;;; (Thanks to Mark A. Hershberger).
-;;; (`cperl-outline-level'): New function.
-;;; (`cperl-highlight-variables-indiscriminately'): New customization var.
-;;; (`cperl-init-faces'): Use `cperl-highlight-variables-indiscriminately'.
-;;; (Thanks to Sean Kamath <kamath@pogo.wv.tek.com>).
-;;; (`cperl-after-block-p'): Support CHECK and INIT.
-;;; (`cperl-init-faces'): Likewise and "our".
-;;; (Thanks to Doug MacEachern <dougm@covalent.net>).
-;;; (`cperl-short-docs'): Likewise and "our".
-
-
-;;;; After 4.27:
-;;; (`cperl-find-pods-heres'): Recognize \"" as a string.
-;;; Mark whitespace and comments between q and []
-;;; as `syntax-type' => `prestring'.
-;;; Allow whitespace between << and "FOO".
-;;; (`cperl-problems'): Remove \"" and q [] with intervening newlines.
-;;; Mention multiple <<EOF as unsupported.
-;;; (`cperl-highlight-variables-indiscriminately'): Doc misprint fixed.
-;;; (`cperl-indent-parens-as-block'): New configuration variable.
-;;; (`cperl-calculate-indent'): Merge cases of indenting non-BLOCK groups.
-;;; Use `cperl-indent-parens-as-block'.
-;;; (`cperl-find-pods-heres'): Test for =cut without empty line instead of
-;;; complaining about no =cut.
-;;; (`cperl-electric-pod'): Change the REx for POD from "\n\n=" to "^\n=".
-;;; (`cperl-find-pods-heres'): Likewise.
-;;; (`cperl-electric-pod'): Change `forward-sexp' to `forward-word':
-;;; POD could've been marked as comment already.
-;;; (`cperl-unwind-to-safe'): Unwind before start of POD too.
-
-;;;; After 4.28:
-;;; (`cperl-forward-re'): Throw an error at proper moment REx unfinished.
-
-;;;; After 4.29:
-;;; (`x-color-defined-p'): Make an extra case to peacify the warning.
-;;; Toplevel: `defvar' to peacify the warnings.
-;;; (`cperl-find-pods-heres'): Could access `font-lock-comment-face' in -nw.
-;;;; No -nw-compile time warnings now.
-;;; (`cperl-find-tags'): TAGS file had too short substring-to-search.
-;;; Be less verbose in non-interactive mode
-;;; (`imenu-example--create-perl-index'): Set index-marker after name
-;;; (`cperl-outline-regexp'): New variable.
-;;; (`cperl-outline-level'): Made compatible with `cperl-outline-regexp'.
-;;; (`cperl-mode'): Made use `cperl-outline-regexp'.
-
-;;;; After 4.30:
-;;; (`cperl-find-pods-heres'): =cut the last thing, no blank line, was error.
-;;; (`cperl-outline-level'): Make start-of-file same level as `package'.
-
-;;;; After 4.31:
-;;; (`cperl-electric-pod'): `head1' and `over' electric only if empty.
-;;; (`cperl-unreadable-ok'): New variable.
-;;; (`cperl-find-tags'): Use `cperl-unreadable-ok', do not fail
-;;; on an unreadable file
-;;; (`cperl-write-tags'): Use `cperl-unreadable-ok', do not fail
-;;; on an unreadable directory
-
-;;;; After 4.32:
-;;; Syncronized with v1.60 from Emacs 21.3.
-;;; Mostly docstring and formatting changes, and:
-
-;;; (`cperl-noscan-files-regexp'): Do not scan CVS subdirs
-;;; (`cperl-problems'): Note that newer XEmacsen may syntaxify too
-;;; (`imenu-example--create-perl-index'):
-;;; Renamed to `cperl-imenu--create-perl-index'
-;;; (`cperl-mode'): Replace `make-variable-buffer-local' by `make-local-variable'
-;;; (`cperl-setup-tmp-buf'): Likewise
-;;; (`cperl-fix-line-spacing'): Fix a misprint of "t" for "\t"
-;;; (`cperl-next-bad-style'): Fix misprints in character literals
-
-;;;; After 4.33:
-;;; (`cperl-font-lock-keywords'): +etc: Aliased to perl-font-lock-keywords.
-
-;;;; After 4.34:
-;;; Further updates of whitespace and spelling w.r.t. RMS version.
-;;; (`cperl-font-lock-keywords'): +etc: Avoid warnings when aliasing.
-;;; (`cperl-mode'): Use `normal-auto-fill-function' if present.
-;;; (`cperl-use-major-mode'): New variable
-;;; (`cperl-can-font-lock'): New variable; replaces `window-system'
-;;; (`cperl-tags-hier-init'): use `display-popup-menus-p' (if present)
-;;; to choose `x-popup-menu' vs `tmm-prompt'
-
-;;;; 4.35 has the following differences from version 1.40+ of RMS Emacs:
-
-;;; New variables `cperl-use-major-mode', `cperl-can-font-lock';
-;;; `cperl-use-major-mode' is (effectively) 'cperl-mode in RMS.
-;;; `cperl-under-as-char' is nil in RMS.
-;;; Minor differences in docstrings, and `cperl-non-problems'.
-;;; Backward compatibility addressed: (`); (function (lambda ...)); font-lock;
-;;; (:italic t bold t) vs (:slant italic :weight bold) in faces;
-;;; `normal-auto-fill-function'.
-;;; RMS version has wrong logic in `cperl-calculate-indent': $a = { } is
-;;; wrongly indented if the closing brace is on a separate line.
-;;; Different choice of ordering if's for is-x-REx and (eq (char-after b) ?\#)
-;;; in `cperl-find-pods-heres'. [Cosmetic]
-
-;;;; After 4.35:
-;;; (`cperl-find-pods-heres'): If no end of HERE-doc found, mark to the end
-;;; of buffer. This enables recognition of end
-;;; of HERE-doc "as one types".
-;;; Require "\n" after trailing tag of HERE-doc.
-;;; \( made non-quoting outside of string/comment
-;;; (gdj-contributed).
-;;; Likewise for \$.
-;;; Remove `here-doc-group' text property at start
-;;; (makes this property reliable).
-;;; Text property `first-format-line' ==> t.
-;;; Do not recognize $opt_s and $opt::s as s///.
-;;; (`cperl-perldoc'): Use case-sensitive search (contributed).
-;;; (`cperl-fix-line-spacing'): Allow "_" in $vars of foreach etc. when
-;;; underscore isn't a word char (gdj-contributed).
-;;; (`defun-prompt-regexp'): Allow prototypes.
-;;; (`cperl-vc-header-alist'): Extract numeric version from the Id.
-;;; Toplevel: Put toggle-autohelp into the mode menu.
-;;; Better docs for toggle/set/unset autohelp.
-;;; (`cperl-electric-backspace-untabify'): New customization variable
-;;; (`cperl-after-expr-p'): Works after here-docs, formats, and PODs too
-;;; (affects many electric constructs).
-;;; (`cperl-calculate-indent'): Takes into account `first-format-line' ==>
-;;; works after format.
-;;; (`cperl-short-docs'): Make it work with ... too.
-;;; "array context" ==> "list context"
-;;; (`cperl-electric-keyword'): make $if (etc: "$@%&*") non-electric
-;;; '(' after keyword would insert a doubled paren
-;;; (`cperl-electric-paren'): documented affected by `cperl-electric-parens'
-;;; (`cperl-electric-rparen'): Likewise
-;;; (`cperl-build-manpage'): New function by Nick Roberts
-;;; (`cperl-perldoc'): Make it work in XEmacs too
-
-;;;; After 4.36:
-;;; (`cperl-find-pods-heres'): Recognize s => 1 and {s} (as a key or varname),
-;;; { s:: } and { s::bar::baz } as varnames.
-;;; (`cperl-after-expr-p'): Updates syntaxification before checks
-;;; (`cperl-calculate-indent'): Likewise
-;;; Fix wrong indent of blocks starting with POD
-;;; (`cperl-after-block-p'): Optional argument for checking for a pre-block
-;;; Recognize `continue' blocks too.
-;;; (`cperl-electric-brace'): use `cperl-after-block-p' for detection;
-;;; Now works for else/continue/sub blocks
-;;; (`cperl-short-docs'): Minor edits; make messages fit 80-column screen
-
-;;;; After 5.0:
-;;; `cperl-add-tags-recurse-noxs-fullpath': new function (for -batch mode)
-
-;;;; After 5.1:
-;;;;;; Major edit. Summary of most visible changes:
-
-;;;;;; a) Multiple <<HERE per line allowed.
-;;;;;; b) Handles multiline subroutine declaration headers (with comments).
-;;;;;; (The exception is `cperl-etags' - but it is not used in the rest
-;;;;;; of the mode.)
-;;;;;; c) Fontifies multiline my/our declarations (even with comments,
-;;;;;; and with legacy `font-lock').
-;;;;;; d) Major speedup of syntaxification, both immediate and postponed
-;;;;;; (3.5x to 15x [for different CPUs and versions of Emacs] on the
-;;;;;; huge real-life document I tested).
-;;;;;; e) New bindings, edits to imenu.
-;;;;;; f) "_" is made into word-char during fontification/syntaxification;
-;;;;;; some attempts to recognize non-word "_" during other operations too.
-;;;;;; g) Detect bug in Emacs with `looking-at' inside `narrow' and bulk out.
-;;;;;; h) autoload some more perldoc-related stuff
-;;;;;; i) Some new convenience features: ISpell POD/HEREDOCs, narrow-to-HEREDOC
-;;;;;; j) Attempt to incorporate XEmacs edits which reached me
-
-;;;; Fine-grained changelog:
-;;; `cperl-hook-after-change': New configuration variable
-;;; `cperl-vc-sccs-header': Likewise
-;;; `cperl-vc-sccs-header': Likewise
-;;; `cperl-vc-header-alist': Default via two preceding variables
-;;; `cperl-invalid-face': Remove double quoting under XEmacs
-;;; (still needed under 21.2)
-;;; `cperl-tips': Update URLs for resources
-;;; `cperl-problems': Likewise
-;;; `cperl-praise': Mention new features
-;;; New C-c key bindings: for `cperl-find-bad-style',
-;;; `cperl-pod-spell', `cperl-here-doc-spell', `cperl-narrow-to-here-doc',
-;;; `cperl-perdoc', `cperl-perldoc-at-point'
-;;; CPerl Mode menu changes: "Fix style by spaces", "Imenu on Perl Info"
-;;; moved, new submenu of Tools with Ispell entries and narrowing.
-;;; `cperl-after-sub-regexp': New defsubst
-;;; `cperl-imenu--function-name-regexp-perl': Use `cperl-after-sub-regexp',
-;;; Allows heads up to head4
-;;; Allow "package;"
-;;; `defun-prompt-regexp': Use `cperl-after-sub-regexp',
-;;; `paren-backwards-message': ??? Something for XEmacs???
-;;; `cperl-mode': Never auto-switch abbrev-mode off
-;;; Try to allow '_' be non-word char
-;;; Do not use `font-lock-unfontify-region-function' on XEmacs
-;;; Reset syntax cache on mode start
-;;; Support multiline facification (even
-;;; on legacy `font-lock')
-;;; `cperl-facemenu-add-face-function': ??? Some contributed code ???
-;;; `cperl-after-change-function': Since `font-lock' and `lazy-lock'
-;;; refuse to inform us whether the fontification is due to lazy
-;;; calling or due to edit to a buffer, install our own hook
-;;; (controlled by `cperl-hook-after-change')
-;;; `cperl-electric-pod': =cut may have been recognized as start
-;;; `cperl-block-p': Moved, updated for attributes
-;;; `cperl-calculate-indent': Try to allow '_' be non-word char
-;;; Support subs with attributes
-;;; `cperl-where-am-i': Queit (?) a warning
-;;; `cperl-cached-syntax-table' New function
-;;; `cperl-forward-re': Use `cperl-cached-syntax-table'
-;;; `cperl-unwind-to-safe': Recognize `syntax-type' property
-;;; changing in a middle of line
-;;; `cperl-find-sub-attrs': New function
-;;; `cperl-find-pods-heres': Allow many <<EOP per line
-;;; Allow subs with attributes
-;;; Major speedups (3.5x..15x on a real-life
-;;; test file nph-proxy.pl)
-;;; Recognize "extproc " (OS/2)
-;;; case-folded and only at start
-;;; /x on s///x with empty replacement was
-;;; not recognized
-;;; Better comments
-;;; `cperl-after-block-p': Remarks on diff with `cperl-block-p'
-;;; Allow subs with attributes, labels
-;;; Do not confuse "else::foo" with "else"
-;;; Minor optimizations...
-;;; `cperl-after-expr-p': Try to allow '_' be non-word char
-;;; `cperl-fill-paragraph': Try to detect a major bug in Emacs
-;;; with `looking-at' inside `narrow' and bulk out if found
-;;; `cperl-imenu--create-perl-index': Updates for new
-;;; `cperl-imenu--function-name-regexp-perl'
-;;; `cperl-outline-level': Likewise
-;;; `cperl-init-faces': Allow multiline subroutine headers
-;;; and my/our declarations, and ones with comments
-;;; Allow subroutine attributes
-;;; `cperl-imenu-on-info': Better docstring.
-;;; `cperl-etags' Rudimentary support for attributes
-;;; Support for packages and "package;"
-;;; `cperl-add-tags-recurse-noxs': Better (?) docstring
-;;; `cperl-add-tags-recurse-noxs-fullpath': Likewise
-;;; `cperl-tags-hier-init': Misprint for `fboundp' fixed
-;;; `cperl-not-bad-style-regexp': Try to allow '_' be non-word char
-;;; `cperl-perldoc': Add autoload
-;;; `cperl-perldoc-at-point': Likewise
-;;; `cperl-here-doc-spell': New function
-;;; `cperl-pod-spell': Likewise
-;;; `cperl-map-pods-heres': Likewise
-;;; `cperl-get-here-doc-region': Likewise
-;;; `cperl-font-lock-fontify-region-function': Likewise (backward compatibility
-;;; for legacy `font-lock')
-;;; `cperl-font-lock-unfontify-region-function': Fix style
-;;; `cperl-fontify-syntaxically': Recognize and optimize away
-;;; deferred calls with no-change. Governed by `cperl-hook-after-change'
-;;; `cperl-fontify-update': Recognize that syntaxification region
-;;; can be larger than fontification one.
-;;; XXXX we leave `cperl-postpone' property, so this is quadratic...
-;;; `cperl-fontify-update-bad': Temporary placeholder until
-;;; it is clear how to implement `cperl-fontify-update'.
-;;; `cperl-time-fontification': New function
-;;; `attrib-group': New text attribute
-;;; `multiline': New value: `syntax-type' text attribute
-
-;;;; After 5.2:
-;;; `cperl-emulate-lazy-lock': New function
-;;; `cperl-fontify-syntaxically': Would skip large regions
-;;; Add `cperl-time-fontification', `cperl-emulate-lazy-lock' to menu
-;;; Some globals were declared, but uninitialized
-
-;;;; After 5.3, 5.4:
-;;; `cperl-facemenu-add-face-function': Add docs, fix U<>
-;;; Copyright message updated.
-;;; `cperl-init-faces': Work around a bug in `font-lock'. May slow
-;;; facification down a bit.
-;;; Misprint for my|our|local for old `font-lock'
-;;; "our" was not fontified same as "my|local"
-;;; Highlight variables after "my" etc even in
-;;; a middle of an expression
-;;; Do not facify multiple variables after my etc
-;;; unless parentheses are present
-
-;;; After 5.5, 5.6
-;;; `cperl-fontify-syntaxically': after-change hook could reset
-;;; `cperl-syntax-done-to' to a middle of line; unwind to BOL.
-
-;;; After 5.7:
-;;; `cperl-init-faces': Allow highlighting of local ($/)
-;;; `cperl-problems-old-emaxen': New variable (for the purpose of DOCSTRING).
-;;; `cperl-problems': Remove fixed problems.
-;;; `cperl-find-pods-heres': Recognize #-comments in m##x too
-;;; Recognize charclasses (unless delimiter is \).
-;;; `cperl-fontify-syntaxically': Unwinding to safe was done in wrong order
-;;; `cperl-regexp-scan': Update docs
-;;; `cperl-beautify-regexp-piece': use information got from regexp scan
-
-;;; After 5.8:
-;;; Major user visible changes:
-;;; Recognition and fontification of character classes in RExen.
-;;; Variable indentation of RExen according to groups
-;;;
-;;; `cperl-find-pods-heres': Recognize POSIX classes in REx charclasses
-;;; Fontify REx charclasses in variable-name face
-;;; Fontify POSIX charclasses in "type" face
-;;; Fontify unmatched "]" in function-name face
-;;; Mark first-char of HERE-doc as `front-sticky'
-;;; Reset `front-sticky' property when needed
-;;; `cperl-calculate-indent': Indents //x -RExen accordning to parens level
-;;; `cperl-to-comment-or-eol': Recognize ends of `syntax-type' constructs
-;;; `cperl-backward-to-noncomment': Recognize stringy `syntax-type' constructs
-;;; Support `narrow'ed buffers.
-;;; `cperl-praise': Remove a reservation
-;;; `cperl-make-indent': New function
-;;; `cperl-indent-for-comment': Use `cperl-make-indent'
-;;; `cperl-indent-line': Likewise
-;;; `cperl-lineup': Likewise
-;;; `cperl-beautify-regexp-piece': Likewise
-;;; `cperl-contract-level': Likewise
-;;; `cperl-toggle-set-debug-unwind': New function
-;;; New menu entry for this
-;;; `fill-paragraph-function': Use when `boundp'
-;;; `cperl-calculate-indent': Take into account groups when indenting RExen
-;;; `cperl-to-comment-or-eol': Recognize # which end a string
-;;; `cperl-modify-syntax-type': Make only syntax-table property non-sticky
-;;; `cperl-fill-paragraph': Return t: needed for `fill-paragraph-function'
-;;; `cperl-fontify-syntaxically': More clear debugging message
-;;; `cperl-pod2man-build-command': XEmacs portability: check `Man-filter-list'
-;;; `cperl-init-faces': More complicated highlight even on XEmacs (new)
-;;; Merge cosmetic changes from XEmacs
-
-;;; After 5.9:
-;;; `cperl-1+': Moved to before the first use
-;;; `cperl-1-': Likewise
-
-;;; After 5.10:
-
-;;; This code may lock Emacs hard!!! Use on your own risk!
-
-;;; `cperl-font-locking': New internal variable
-;;; `cperl-beginning-of-property': New function
-;;; `cperl-calculate-indent': Use `cperl-beginning-of-property'
-;;; instead of `previous-single-property-change'
-;;; `cperl-unwind-to-safe': Likewise
-;;; `cperl-after-expr-p': Likewise
-;;; `cperl-get-here-doc-region': Likewise
-;;; `cperl-font-lock-fontify-region-function': Likewise
-;;; `cperl-to-comment-or-eol': Do not call `cperl-update-syntaxification'
-;;; recursively
-;;; Bound `next-single-property-change'
-;;; via `point-max'
-;;; `cperl-unwind-to-safe': Bound likewise
-;;; `cperl-font-lock-fontify-region-function': Likewise
-;;; `cperl-find-pods-heres': Mark as recursive for `cperl-to-comment-or-eol'
-;;; Initialization of
-;;; `cperl-font-lock-multiline-start' could be missed if the "main"
-;;; fontification did not run due to the keyword being already fontified.
-;;; `cperl-pod-spell': Return t from do-one-chunk function
-;;; `cperl-map-pods-heres': Stop when the worker returns nil
-;;; Call `cperl-update-syntaxification'
-;;; `cperl-get-here-doc-region': Call `cperl-update-syntaxification'
-;;; `cperl-get-here-doc-delim': Remove unused function
-
-;;; After 5.11:
-
-;;; The possible lockup of Emacs (introduced in 5.10) fixed
-
-;;; `cperl-unwind-to-safe': `cperl-beginning-of-property' won't return nil
-;;; `cperl-syntaxify-for-menu': New customization variable
-;;; `cperl-select-this-pod-or-here-doc': New function
-;;; `cperl-get-here-doc-region': Extra argument.
-;;; Do not adjust pos by 1.
-
-;;; New menu entries (Perl/Tools): selection of current POD or HERE-DOC section
-;;; (Debugging CPerl:) backtrace on fontification
-
-;;; After 5.12:
-;;; `cperl-cached-syntax-table': use `car-safe'
-;;; `cperl-forward-re': Remove spurious argument SET-ST
-;;; Add documentation
-;;; `cperl-forward-group-in-re': New function
-;;; `cperl-find-pods-heres': Find and highlight (?{}) blocks in RExen.
-;;; (XXXX Temporary (?) hack is to syntax-mark them as comment)
-
-;;; After 5.13:
-;;; `cperl-string-syntax-table': Make { and } not-grouping
-;;; (Sometimes they ARE grouping in RExen, but matching them would only
-;;; confuse in many situations when they are not).
-;;; `beginning-of-buffer': Replaced two occurences with goto-char...
-;;; `cperl-calculate-indent': `char-after' could be nil...
-;;; `cperl-find-pods-heres': REx can start after "[" too
-;;; Hightlight (??{}) in RExen too
-;;; `cperl-maybe-white-and-comment-rex': New constant
-;;; `cperl-white-and-comment-rex': Likewise
-;;; XXXX Not very efficient, but hard to make
-;;; better while keeping 1 group.
-
-;;; After 5.13:
-;;; `cperl-find-pods-heres': $foo << identifier() is not a HERE-DOC
-;;; Likewise for 1 << identifier
-
-;;; After 5.14:
-;;; `cperl-find-pods-heres': Different logic for $foo .= <<EOF etc
-;;; Error-less condition-case could fail
-;;; `cperl-font-lock-fontify-region-function': Likewise
-;;; `cperl-init-faces': Likewise
-
-;;; After 5.15:
-;;; `cperl-find-pods-heres': Support property REx-part2
-;;; `cperl-calculate-indent': Likewise
-;;; Don't special-case REx with non-empty 1st line
-;;; `cperl-find-pods-heres': In RExen, highlight non-literal backslashes
-;;; Invert highlighting of charclasses:
-;;; now the envelop is highlighted
-;;; Highlight many others 0-length builtins
-;;; `cperl-praise': Mention indenting and highlight in RExen.
-
-;;; Code:
-\f
-(if (fboundp 'eval-when-compile)
- (eval-when-compile
- (condition-case nil
- (require 'custom)
- (error nil))
- (condition-case nil
- (require 'man)
- (error nil))
- (defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
- (defvar cperl-can-font-lock
- (or cperl-xemacs-p
- (and (boundp 'emacs-major-version)
- (or window-system
- (> emacs-major-version 20)))))
- (if cperl-can-font-lock
- (require 'font-lock))
- (defvar msb-menu-cond)
- (defvar gud-perldb-history)
- (defvar font-lock-background-mode) ; not in Emacs
- (defvar font-lock-display-type) ; ditto
- (or (fboundp 'defgroup)
- (defmacro defgroup (name val doc &rest arr)
- nil))
- (or (fboundp 'custom-declare-variable)
- (defmacro defcustom (name val doc &rest arr)
- (` (defvar (, name) (, val) (, doc)))))
- (or (and (fboundp 'custom-declare-variable)
- (string< "19.31" emacs-version)) ; Checked with 19.30: defface does not work
- (defmacro defface (&rest arr)
- nil))
- ;; Avoid warning (tmp definitions)
- (or (fboundp 'x-color-defined-p)
- (defmacro x-color-defined-p (col)
- (cond ((fboundp 'color-defined-p) (` (color-defined-p (, col))))
- ;; XEmacs >= 19.12
- ((fboundp 'valid-color-name-p) (` (valid-color-name-p (, col))))
- ;; XEmacs 19.11
- ((fboundp 'x-valid-color-name-p) (` (x-valid-color-name-p (, col))))
- (t '(error "Cannot implement color-defined-p")))))
- (defmacro cperl-is-face (arg) ; Takes quoted arg
- (cond ((fboundp 'find-face)
- (` (find-face (, arg))))
- (;;(and (fboundp 'face-list)
- ;; (face-list))
- (fboundp 'face-list)
- (` (member (, arg) (and (fboundp 'face-list)
- (face-list)))))
- (t
- (` (boundp (, arg))))))
- (defmacro cperl-make-face (arg descr) ; Takes unquoted arg
- (cond ((fboundp 'make-face)
- (` (make-face (quote (, arg)))))
- (t
- (` (defvar (, arg) (quote (, arg)) (, descr))))))
- (defmacro cperl-force-face (arg descr) ; Takes unquoted arg
- (` (progn
- (or (cperl-is-face (quote (, arg)))
- (cperl-make-face (, arg) (, descr)))
- (or (boundp (quote (, arg))) ; We use unquoted variants too
- (defvar (, arg) (quote (, arg)) (, descr))))))
- (if cperl-xemacs-p
- (defmacro cperl-etags-snarf-tag (file line)
- (` (progn
- (beginning-of-line 2)
- (list (, file) (, line)))))
- (defmacro cperl-etags-snarf-tag (file line)
- (` (etags-snarf-tag))))
- (if cperl-xemacs-p
- (defmacro cperl-etags-goto-tag-location (elt)
- (`;;(progn
- ;; (switch-to-buffer (get-file-buffer (elt (, elt) 0)))
- ;; (set-buffer (get-file-buffer (elt (, elt) 0)))
- ;; Probably will not work due to some save-excursion???
- ;; Or save-file-position?
- ;; (message "Did I get to line %s?" (elt (, elt) 1))
- (goto-line (string-to-int (elt (, elt) 1)))))
- ;;)
- (defmacro cperl-etags-goto-tag-location (elt)
- (` (etags-goto-tag-location (, elt)))))))
-
-(defconst cperl-xemacs-p (string-match "XEmacs\\|Lucid" emacs-version))
-
-(defvar cperl-can-font-lock
- (or cperl-xemacs-p
- (and (boundp 'emacs-major-version)
- (or window-system
- (> emacs-major-version 20)))))
-
-(condition-case nil
- (require 'custom)
- (error nil)) ; Already fixed by eval-when-compile
-
-(defun cperl-choose-color (&rest list)
- (let (answer)
- (while list
- (or answer
- (if (or (x-color-defined-p (car list))
- (null (cdr list)))
- (setq answer (car list))))
- (setq list (cdr list)))
- answer))
-
-\f
-(defgroup cperl nil
- "Major mode for editing Perl code."
- :prefix "cperl-"
- :group 'languages)
-
-(defgroup cperl-indentation-details nil
- "Indentation."
- :prefix "cperl-"
- :group 'cperl)
-
-(defgroup cperl-affected-by-hairy nil
- "Variables affected by `cperl-hairy'."
- :prefix "cperl-"
- :group 'cperl)
-
-(defgroup cperl-autoinsert-details nil
- "Auto-insert tuneup."
- :prefix "cperl-"
- :group 'cperl)
-
-(defgroup cperl-faces nil
- "Fontification colors."
- :prefix "cperl-"
- :group 'cperl)
-
-(defgroup cperl-speed nil
- "Speed vs. validity tuneup."
- :prefix "cperl-"
- :group 'cperl)
-
-(defgroup cperl-help-system nil
- "Help system tuneup."
- :prefix "cperl-"
- :group 'cperl)
-
-\f
-(defcustom cperl-extra-newline-before-brace nil
- "*Non-nil means that if, elsif, while, until, else, for, foreach
-and do constructs look like:
-
- if ()
- {
- }
-
-instead of:
-
- if () {
- }"
- :type 'boolean
- :group 'cperl-autoinsert-details)
-
-(defcustom cperl-extra-newline-before-brace-multiline
- cperl-extra-newline-before-brace
- "*Non-nil means the same as `cperl-extra-newline-before-brace', but
-for constructs with multiline if/unless/while/until/for/foreach condition."
- :type 'boolean
- :group 'cperl-autoinsert-details)
-
-(defcustom cperl-indent-level 2
- "*Indentation of CPerl statements with respect to containing block."
- :type 'integer
- :group 'cperl-indentation-details)
-
-(defcustom cperl-lineup-step nil
- "*`cperl-lineup' will always lineup at multiple of this number.
-If nil, the value of `cperl-indent-level' will be used."
- :type '(choice (const nil) integer)
- :group 'cperl-indentation-details)
-
-(defcustom cperl-brace-imaginary-offset 0
- "*Imagined indentation of a Perl open brace that actually follows a statement.
-An open brace following other text is treated as if it were this far
-to the right of the start of its line."
- :type 'integer
- :group 'cperl-indentation-details)
-
-(defcustom cperl-brace-offset 0
- "*Extra indentation for braces, compared with other text in same context."
- :type 'integer
- :group 'cperl-indentation-details)
-(defcustom cperl-label-offset -2
- "*Offset of CPerl label lines relative to usual indentation."
- :type 'integer
- :group 'cperl-indentation-details)
-(defcustom cperl-min-label-indent 1
- "*Minimal offset of CPerl label lines."
- :type 'integer
- :group 'cperl-indentation-details)
-(defcustom cperl-continued-statement-offset 2
- "*Extra indent for lines not starting new statements."
- :type 'integer
- :group 'cperl-indentation-details)
-(defcustom cperl-continued-brace-offset 0
- "*Extra indent for substatements that start with open-braces.
-This is in addition to cperl-continued-statement-offset."
- :type 'integer
- :group 'cperl-indentation-details)
-(defcustom cperl-close-paren-offset -1
- "*Extra indent for substatements that start with close-parenthesis."
- :type 'integer
- :group 'cperl-indentation-details)
-
-(defcustom cperl-auto-newline nil
- "*Non-nil means automatically newline before and after braces,
-and after colons and semicolons, inserted in CPerl code. The following
-\\[cperl-electric-backspace] will remove the inserted whitespace.
-Insertion after colons requires both this variable and
-`cperl-auto-newline-after-colon' set."
- :type 'boolean
- :group 'cperl-autoinsert-details)
-
-(defcustom cperl-autoindent-on-semi nil
- "*Non-nil means automatically indent after insertion of (semi)colon.
-Active if `cperl-auto-newline' is false."
- :type 'boolean
- :group 'cperl-autoinsert-details)
-
-(defcustom cperl-auto-newline-after-colon nil
- "*Non-nil means automatically newline even after colons.
-Subject to `cperl-auto-newline' setting."
- :type 'boolean
- :group 'cperl-autoinsert-details)
-
-(defcustom cperl-tab-always-indent t
- "*Non-nil means TAB in CPerl mode should always reindent the current line,
-regardless of where in the line point is when the TAB command is used."
- :type 'boolean
- :group 'cperl-indentation-details)
-
-(defcustom cperl-font-lock nil
- "*Non-nil (and non-null) means CPerl buffers will use `font-lock-mode'.
-Can be overwritten by `cperl-hairy' if nil."
- :type '(choice (const null) boolean)
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-electric-lbrace-space nil
- "*Non-nil (and non-null) means { after $ should be preceded by ` '.
-Can be overwritten by `cperl-hairy' if nil."
- :type '(choice (const null) boolean)
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-electric-parens-string "({[]})<"
- "*String of parentheses that should be electric in CPerl.
-Closing ones are electric only if the region is highlighted."
- :type 'string
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-electric-parens nil
- "*Non-nil (and non-null) means parentheses should be electric in CPerl.
-Can be overwritten by `cperl-hairy' if nil."
- :type '(choice (const null) boolean)
- :group 'cperl-affected-by-hairy)
-
-(defvar zmacs-regions) ; Avoid warning
-
-(defcustom cperl-electric-parens-mark
- (and window-system
- (or (and (boundp 'transient-mark-mode) ; For Emacs
- transient-mark-mode)
- (and (boundp 'zmacs-regions) ; For XEmacs
- zmacs-regions)))
- "*Not-nil means that electric parens look for active mark.
-Default is yes if there is visual feedback on mark."
- :type 'boolean
- :group 'cperl-autoinsert-details)
-
-(defcustom cperl-electric-linefeed nil
- "*If true, LFD should be hairy in CPerl, otherwise C-c LFD is hairy.
-In any case these two mean plain and hairy linefeeds together.
-Can be overwritten by `cperl-hairy' if nil."
- :type '(choice (const null) boolean)
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-electric-keywords nil
- "*Not-nil (and non-null) means keywords are electric in CPerl.
-Can be overwritten by `cperl-hairy' if nil."
- :type '(choice (const null) boolean)
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-electric-backspace-untabify t
- "*Not-nil means electric-backspace will untabify in CPerl."
- :type 'boolean
- :group 'cperl-autoinsert-details)
-
-(defcustom cperl-hairy nil
- "*Not-nil means most of the bells and whistles are enabled in CPerl.
-Affects: `cperl-font-lock', `cperl-electric-lbrace-space',
-`cperl-electric-parens', `cperl-electric-linefeed', `cperl-electric-keywords',
-`cperl-info-on-command-no-prompt', `cperl-clobber-lisp-bindings',
-`cperl-lazy-help-time'."
- :type 'boolean
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-comment-column 32
- "*Column to put comments in CPerl (use \\[cperl-indent] to lineup with code)."
- :type 'integer
- :group 'cperl-indentation-details)
-
-(defcustom cperl-vc-sccs-header '("($sccs) = ('%W\%' =~ /(\\d+(\\.\\d+)+)/) ;")
- "*Special version of `vc-sccs-header' that is used in CPerl mode buffers."
- :type '(repeat string)
- :group 'cperl)
-
-(defcustom cperl-vc-rcs-header '("($rcs) = (' $Id\$ ' =~ /(\\d+(\\.\\d+)+)/);")
- "*Special version of `vc-rcs-header' that is used in CPerl mode buffers."
- :type '(repeat string)
- :group 'cperl)
-
-;; This became obsolete...
-(defcustom cperl-vc-header-alist '()
- "*What to use as `vc-header-alist' in CPerl.
-Obsolete, with newer Emacsen use `cperl-vc-rcs-header' or
-`cperl-vc-sccs-header' instead. If this list is empty, `vc-header-alist'
-will be reconstructed basing on these two variables."
- :type '(repeat (list symbol string))
- :group 'cperl)
-
-(defcustom cperl-clobber-mode-lists
- (not
- (and
- (boundp 'interpreter-mode-alist)
- (assoc "miniperl" interpreter-mode-alist)
- (assoc "\\.\\([pP][Llm]\\|al\\)$" auto-mode-alist)))
- "*Whether to install us into `interpreter-' and `extension' mode lists."
- :type 'boolean
- :group 'cperl)
-
-(defcustom cperl-info-on-command-no-prompt nil
- "*Not-nil (and non-null) means not to prompt on C-h f.
-The opposite behaviour is always available if prefixed with C-c.
-Can be overwritten by `cperl-hairy' if nil."
- :type '(choice (const null) boolean)
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-clobber-lisp-bindings nil
- "*Not-nil (and non-null) means not overwrite C-h f.
-The function is available on \\[cperl-info-on-command], \\[cperl-get-help].
-Can be overwritten by `cperl-hairy' if nil."
- :type '(choice (const null) boolean)
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-lazy-help-time nil
- "*Not-nil (and non-null) means to show lazy help after given idle time.
-Can be overwritten by `cperl-hairy' to be 5 sec if nil."
- :type '(choice (const null) (const nil) integer)
- :group 'cperl-affected-by-hairy)
-
-(defcustom cperl-pod-face 'font-lock-comment-face
- "*The result of evaluation of this expression is used for POD highlighting."
- :type 'face
- :group 'cperl-faces)
-
-(defcustom cperl-pod-head-face 'font-lock-variable-name-face
- "*The result of evaluation of this expression is used for POD highlighting.
-Font for POD headers."
- :type 'face
- :group 'cperl-faces)
-
-(defcustom cperl-here-face 'font-lock-string-face
- "*The result of evaluation of this expression is used for here-docs highlighting."
- :type 'face
- :group 'cperl-faces)
-
-;;; Some double-evaluation happened with font-locks... Needed with 21.2...
-(defvar cperl-singly-quote-face cperl-xemacs-p)
-
-(defcustom cperl-invalid-face ; Does not customize with '' on XEmacs
- (if cperl-singly-quote-face
- 'underline ''underline) ; On older Emacsen was evaluated by `font-lock'
- (if cperl-singly-quote-face
- "*This face is used for highlighting trailing whitespace."
- "*The result of evaluation of this expression highlights trailing whitespace.")
- :type 'face
- :group 'cperl-faces)
-
-(defcustom cperl-pod-here-fontify '(featurep 'font-lock)
- "*Not-nil after evaluation means to highlight POD and here-docs sections."
- :type 'boolean
- :group 'cperl-faces)
-
-(defcustom cperl-fontify-m-as-s t
- "*Not-nil means highlight 1arg regular expressions operators same as 2arg."
- :type 'boolean
- :group 'cperl-faces)
-
-(defcustom cperl-highlight-variables-indiscriminately nil
- "*Non-nil means perform additional highlighting on variables.
-Currently only changes how scalar variables are highlighted.
-Note that that variable is only read at initialization time for
-the variable `perl-font-lock-keywords-2', so changing it after you've
-entered CPerl mode the first time will have no effect."
- :type 'boolean
- :group 'cperl)
-
-(defcustom cperl-pod-here-scan t
- "*Not-nil means look for POD and here-docs sections during startup.
-You can always make lookup from menu or using \\[cperl-find-pods-heres]."
- :type 'boolean
- :group 'cperl-speed)
-
-(defcustom cperl-regexp-scan t
- "*Not-nil means make marking of regular expression more thorough.
-Effective only with `cperl-pod-here-scan'."
- :type 'boolean
- :group 'cperl-speed)
-
-(defcustom cperl-hook-after-change t
- "*Not-nil means install hook to know which regions of buffer are changed.
-May significantly speed up delayed fontification. Changes take effect
-after reload."
- :type 'boolean
- :group 'cperl-speed)
-
-(defcustom cperl-imenu-addback nil
- "*Not-nil means add backreferences to generated `imenu's.
-May require patched `imenu' and `imenu-go'. Obsolete."
- :type 'boolean
- :group 'cperl-help-system)
-
-(defcustom cperl-max-help-size 66
- "*Non-nil means shrink-wrapping of info-buffer allowed up to these percents."
- :type '(choice integer (const nil))
- :group 'cperl-help-system)
-
-(defcustom cperl-shrink-wrap-info-frame t
- "*Non-nil means shrink-wrapping of info-buffer-frame allowed."
- :type 'boolean
- :group 'cperl-help-system)
-
-(defcustom cperl-info-page "perl"
- "*Name of the info page containing perl docs.
-Older version of this page was called `perl5', newer `perl'."
- :type 'string
- :group 'cperl-help-system)
-
-(defcustom cperl-use-syntax-table-text-property
- (boundp 'parse-sexp-lookup-properties)
- "*Non-nil means CPerl sets up and uses `syntax-table' text property."
- :type 'boolean
- :group 'cperl-speed)
-
-(defcustom cperl-use-syntax-table-text-property-for-tags
- cperl-use-syntax-table-text-property
- "*Non-nil means: set up and use `syntax-table' text property generating TAGS."
- :type 'boolean
- :group 'cperl-speed)
-
-(defcustom cperl-scan-files-regexp "\\.\\([pP][Llm]\\|xs\\)$"
- "*Regexp to match files to scan when generating TAGS."
- :type 'regexp
- :group 'cperl)
-
-(defcustom cperl-noscan-files-regexp
- "/\\(\\.\\.?\\|SCCS\\|RCS\\|CVS\\|blib\\)$"
- "*Regexp to match files/dirs to skip when generating TAGS."
- :type 'regexp
- :group 'cperl)
-
-(defcustom cperl-regexp-indent-step nil
- "*Indentation used when beautifying regexps.
-If nil, the value of `cperl-indent-level' will be used."
- :type '(choice integer (const nil))
- :group 'cperl-indentation-details)
-
-(defcustom cperl-indent-left-aligned-comments t
- "*Non-nil means that the comment starting in leftmost column should indent."
- :type 'boolean
- :group 'cperl-indentation-details)
-
-(defcustom cperl-under-as-char t
- "*Non-nil means that the _ (underline) should be treated as word char."
- :type 'boolean
- :group 'cperl)
-
-(defcustom cperl-extra-perl-args ""
- "*Extra arguments to use when starting Perl.
-Currently used with `cperl-check-syntax' only."
- :type 'string
- :group 'cperl)
-
-(defcustom cperl-message-electric-keyword t
- "*Non-nil means that the `cperl-electric-keyword' prints a help message."
- :type 'boolean
- :group 'cperl-help-system)
-
-(defcustom cperl-indent-region-fix-constructs 1
- "*Amount of space to insert between `}' and `else' or `elsif'
-in `cperl-indent-region'. Set to nil to leave as is. Values other
-than 1 and nil will probably not work."
- :type '(choice (const nil) (const 1))
- :group 'cperl-indentation-details)
-
-(defcustom cperl-break-one-line-blocks-when-indent t
- "*Non-nil means that one-line if/unless/while/until/for/foreach BLOCKs
-need to be reformatted into multiline ones when indenting a region."
- :type 'boolean
- :group 'cperl-indentation-details)
-
-(defcustom cperl-fix-hanging-brace-when-indent t
- "*Non-nil means that BLOCK-end `}' may be put on a separate line
-when indenting a region.
-Braces followed by else/elsif/while/until are excepted."
- :type 'boolean
- :group 'cperl-indentation-details)
-
-(defcustom cperl-merge-trailing-else t
- "*Non-nil means that BLOCK-end `}' followed by else/elsif/continue
-may be merged to be on the same line when indenting a region."
- :type 'boolean
- :group 'cperl-indentation-details)
-
-(defcustom cperl-indent-parens-as-block nil
- "*Non-nil means that non-block ()-, {}- and []-groups are indented as blocks,
-but for trailing \",\" inside the group, which won't increase indentation.
-One should tune up `cperl-close-paren-offset' as well."
- :type 'boolean
- :group 'cperl-indentation-details)
-
-(defcustom cperl-syntaxify-by-font-lock
- (and cperl-can-font-lock
- (boundp 'parse-sexp-lookup-properties))
- "*Non-nil means that CPerl uses `font-lock's routines for syntaxification."
- :type '(choice (const message) boolean)
- :group 'cperl-speed)
-
-(defcustom cperl-syntaxify-unwind
- t
- "*Non-nil means that CPerl unwinds to a start of a long construction
-when syntaxifying a chunk of buffer."
- :type 'boolean
- :group 'cperl-speed)
-
-(defcustom cperl-syntaxify-for-menu
- t
- "*Non-nil means that CPerl syntaxifies up to the point before showing menu.
-This way enabling/disabling of menu items is more correct."
- :type 'boolean
- :group 'cperl-speed)
-
-(defcustom cperl-ps-print-face-properties
- '((font-lock-keyword-face nil nil bold shadow)
- (font-lock-variable-name-face nil nil bold)
- (font-lock-function-name-face nil nil bold italic box)
- (font-lock-constant-face nil "LightGray" bold)
- (cperl-array-face nil "LightGray" bold underline)
- (cperl-hash-face nil "LightGray" bold italic underline)
- (font-lock-comment-face nil "LightGray" italic)
- (font-lock-string-face nil nil italic underline)
- (cperl-nonoverridable-face nil nil italic underline)
- (font-lock-type-face nil nil underline)
- (underline nil "LightGray" strikeout))
- "List given as an argument to `ps-extend-face-list' in `cperl-ps-print'."
- :type '(repeat (cons symbol
- (cons (choice (const nil) string)
- (cons (choice (const nil) string)
- (repeat symbol)))))
- :group 'cperl-faces)
-
-(if cperl-can-font-lock
- (progn
- (defvar cperl-dark-background
- (cperl-choose-color "navy" "os2blue" "darkgreen"))
- (defvar cperl-dark-foreground
- (cperl-choose-color "orchid1" "orange"))
-
- (defface cperl-nonoverridable-face
- (` ((((class grayscale) (background light))
- (:background "Gray90" :italic t :underline t))
- (((class grayscale) (background dark))
- (:foreground "Gray80" :italic t :underline t :bold t))
- (((class color) (background light))
- (:foreground "chartreuse3"))
- (((class color) (background dark))
- (:foreground (, cperl-dark-foreground)))
- (t (:bold t :underline t))))
- "Font Lock mode face used to highlight array names."
- :group 'cperl-faces)
-
- (defface cperl-array-face
- (` ((((class grayscale) (background light))
- (:background "Gray90" :bold t))
- (((class grayscale) (background dark))
- (:foreground "Gray80" :bold t))
- (((class color) (background light))
- (:foreground "Blue" :background "lightyellow2" :bold t))
- (((class color) (background dark))
- (:foreground "yellow" :background (, cperl-dark-background) :bold t))
- (t (:bold t))))
- "Font Lock mode face used to highlight array names."
- :group 'cperl-faces)
-
- (defface cperl-hash-face
- (` ((((class grayscale) (background light))
- (:background "Gray90" :bold t :italic t))
- (((class grayscale) (background dark))
- (:foreground "Gray80" :bold t :italic t))
- (((class color) (background light))
- (:foreground "Red" :background "lightyellow2" :bold t :italic t))
- (((class color) (background dark))
- (:foreground "Red" :background (, cperl-dark-background) :bold t :italic t))
- (t (:bold t :italic t))))
- "Font Lock mode face used to highlight hash names."
- :group 'cperl-faces)))
-
-\f
-
-;;; Short extra-docs.
-
-(defvar cperl-tips 'please-ignore-this-line
- "Get maybe newer version of this package from
- http://ilyaz.org/software/emacs
-Subdirectory `cperl-mode' may contain yet newer development releases and/or
-patches to related files.
-
-For best results apply to an older Emacs the patches from
- ftp://ftp.math.ohio-state.edu/pub/users/ilya/cperl-mode/patches
-\(this upgrades syntax-parsing abilities of RMS Emaxen v19.34 and
-v20.2 up to the level of RMS Emacs v20.3 - a must for a good Perl
-mode.) As of beginning of 2003, XEmacs may provide a similar ability.
-
-Get support packages choose-color.el (or font-lock-extra.el before
-19.30), imenu-go.el from the same place. \(Look for other files there
-too... ;-). Get a patch for imenu.el in 19.29. Note that for 19.30 and
-later you should use choose-color.el *instead* of font-lock-extra.el
-\(and you will not get smart highlighting in C :-().
-
-Note that to enable Compile choices in the menu you need to install
-mode-compile.el.
-
-If your Emacs does not default to `cperl-mode' on Perl files, and you
-want it to: put the following into your .emacs file:
-
- (autoload 'perl-mode \"cperl-mode\" \"alternate mode for editing Perl programs\" t)
-
-or
-
- (defalias 'perl-mode 'cperl-mode)
-
-Get perl5-info from
- $CPAN/doc/manual/info/perl5-old/perl5-info.tar.gz
-Also, one can generate a newer documentation running `pod2texi' converter
- $CPAN/doc/manual/info/perl5/pod2texi-0.1.tar.gz
-
-If you use imenu-go, run imenu on perl5-info buffer (you can do it
-from Perl menu). If many files are related, generate TAGS files from
-Tools/Tags submenu in Perl menu.
-
-If some class structure is too complicated, use Tools/Hierarchy-view
-from Perl menu, or hierarchic view of imenu. The second one uses the
-current buffer only, the first one requires generation of TAGS from
-Perl/Tools/Tags menu beforehand.
-
-Run Perl/Tools/Insert-spaces-if-needed to fix your lazy typing.
-
-Switch auto-help on/off with Perl/Tools/Auto-help.
-
-Though with contemporary Emaxen CPerl mode should maintain the correct
-parsing of Perl even when editing, sometimes it may be lost. Fix this by
-
- M-x norm RET
-
-or
-
- \\[normal-mode]
-
-In cases of more severe confusion sometimes it is helpful to do
-
- M-x load-l RET cperl-mode RET
- M-x norm RET
-
-or
-
- \\[load-library] cperl-mode RET
- \\[normal-mode]
-
-Before reporting (non-)problems look in the problem section of online
-micro-docs on what I know about CPerl problems.")
-
-(defvar cperl-problems 'please-ignore-this-line
- "Description of problems in CPerl mode.
-Some faces will not be shown on some versions of Emacs unless you
-install choose-color.el, available from
- http://ilyaz.org/software/emacs
-
-`fill-paragraph' on a comment may leave the point behind the
-paragraph. It also triggers a bug in some versions of Emacs (CPerl tries
-to detect it and bulk out).
-
-See documentation of a variable `cperl-problems-old-emaxen' for the
-problems which disappear if you upgrade Emacs to a reasonably new
-version (20.3 for RMS Emacs, and those of 2004 for XEmacs).")
-
-(defvar cperl-problems-old-emaxen 'please-ignore-this-line
- "Description of problems in CPerl mode specific for older Emacs versions.
-
-Emacs had a _very_ restricted syntax parsing engine until RMS's Emacs
-20.1. Most problems below are corrected starting from this version of
-Emacs, and all of them should be fixed in RMS's version 20.3. (Or apply
-patches to Emacs 19.33/34 - see tips.) XEmacs was very backward in
-this respect (until 2003).
-
-Note that even with newer Emacsen in some very rare cases the details
-of interaction of `font-lock' and syntaxification may be not cleaned
-up yet. You may get slightly different colors basing on the order of
-fontification and syntaxification. Say, the initial faces is correct,
-but editing the buffer breaks this.
-
-Even with older Emacsen CPerl mode tries to corrects some Emacs
-misunderstandings, however, for efficiency reasons the degree of
-correction is different for different operations. The partially
-corrected problems are: POD sections, here-documents, regexps. The
-operations are: highlighting, indentation, electric keywords, electric
-braces.
-
-This may be confusing, since the regexp s#//#/#\; may be highlighted
-as a comment, but it will be recognized as a regexp by the indentation
-code. Or the opposite case, when a POD section is highlighted, but
-may break the indentation of the following code (though indentation
-should work if the balance of delimiters is not broken by POD).
-
-The main trick (to make $ a \"backslash\") makes constructions like
-${aaa} look like unbalanced braces. The only trick I can think of is
-to insert it as $ {aaa} (legal in perl5, not in perl4).
-
-Similar problems arise in regexps, when /(\\s|$)/ should be rewritten
-as /($|\\s)/. Note that such a transposition is not always possible.
-
-The solution is to upgrade your Emacs or patch an older one. Note
-that RMS's 20.2 has some bugs related to `syntax-table' text
-properties. Patches are available on the main CPerl download site,
-and on CPAN.
-
-If these bugs cannot be fixed on your machine (say, you have an inferior
-environment and cannot recompile), you may still disable all the fancy stuff
-via `cperl-use-syntax-table-text-property'.")
-
-(defvar cperl-non-problems 'please-ignore-this-line
-"As you know from `problems' section, Perl syntax is too hard for CPerl on
-older Emacsen. Here is what you can do if you cannot upgrade, or if
-you want to switch off these capabilities on RMS Emacs 20.2 (+patches) or 20.3
-or better. Please skip this docs if you run a capable Emacs already.
-
-Most of the time, if you write your own code, you may find an equivalent
-\(and almost as readable) expression (what is discussed below is usually
-not relevant on newer Emacsen, since they can do it automatically).
-
-Try to help CPerl: add comments with embedded quotes to fix CPerl
-misunderstandings about the end of quotation:
-
-$a='500$'; # ';
-
-You won't need it too often. The reason: $ \"quotes\" the following
-character (this saves a life a lot of times in CPerl), thus due to
-Emacs parsing rules it does not consider tick (i.e., ' ) after a
-dollar as a closing one, but as a usual character. This is usually
-correct, but not in the above context.
-
-Even with older Emacsen the indentation code is pretty wise. The only
-drawback is that it relied on Emacs parsing to find matching
-parentheses. And Emacs *could not* match parentheses in Perl 100%
-correctly. So
- 1 if s#//#/#;
-would not break indentation, but
- 1 if ( s#//#/# );
-would. Upgrade.
-
-By similar reasons
- s\"abc\"def\";
-could confuse CPerl a lot.
-
-If you still get wrong indentation in situation that you think the
-code should be able to parse, try:
-
-a) Check what Emacs thinks about balance of your parentheses.
-b) Supply the code to me (IZ).
-
-Pods were treated _very_ rudimentally. Here-documents were not
-treated at all (except highlighting and inhibiting indentation). Upgrade.
-
-To speed up coloring the following compromises exist:
- a) sub in $mypackage::sub may be highlighted.
- b) -z in [a-z] may be highlighted.
- c) if your regexp contains a keyword (like \"s\"), it may be highlighted.
-
-
-Imenu in 19.31 is broken. Set `imenu-use-keymap-menu' to t, and remove
-`car' before `imenu-choose-buffer-index' in `imenu'.
-`imenu-add-to-menubar' in 20.2 is broken.
-A lot of things on XEmacs may be broken too, judging by bug reports I
-receive. Note that some releases of XEmacs are better than the others
-as far as bugs reports I see are concerned.")
-
-(defvar cperl-praise 'please-ignore-this-line
- "Advantages of CPerl mode.
-
-0) It uses the newest `syntax-table' property ;-);
-
-1) It does 99% of Perl syntax correct (as opposed to 80-90% in Perl
-mode - but the latter number may have improved too in last years) even
-with old Emaxen which do not support `syntax-table' property.
-
-When using `syntax-table' property for syntax assist hints, it should
-handle 99.995% of lines correct - or somesuch. It automatically
-updates syntax assist hints when you edit your script.
-
-2) It is generally believed to be \"the most user-friendly Emacs
-package\" whatever it may mean (I doubt that the people who say similar
-things tried _all_ the rest of Emacs ;-), but this was not a lonely
-voice);
-
-3) Everything is customizable, one-by-one or in a big sweep;
-
-4) It has many easily-accessable \"tools\":
- a) Can run program, check syntax, start debugger;
- b) Can lineup vertically \"middles\" of rows, like `=' in
- a = b;
- cc = d;
- c) Can insert spaces where this impoves readability (in one
- interactive sweep over the buffer);
- d) Has support for imenu, including:
- 1) Separate unordered list of \"interesting places\";
- 2) Separate TOC of POD sections;
- 3) Separate list of packages;
- 4) Hierarchical view of methods in (sub)packages;
- 5) and functions (by the full name - with package);
- e) Has an interface to INFO docs for Perl; The interface is
- very flexible, including shrink-wrapping of
- documentation buffer/frame;
- f) Has a builtin list of one-line explanations for perl constructs.
- g) Can show these explanations if you stay long enough at the
- corresponding place (or on demand);
- h) Has an enhanced fontification (using 3 or 4 additional faces
- comparing to font-lock - basically, different
- namespaces in Perl have different colors);
- i) Can construct TAGS basing on its knowledge of Perl syntax,
- the standard menu has 6 different way to generate
- TAGS (if \"by directory\", .xs files - with C-language
- bindings - are included in the scan);
- j) Can build a hierarchical view of classes (via imenu) basing
- on generated TAGS file;
- k) Has electric parentheses, electric newlines, uses Abbrev
- for electric logical constructs
- while () {}
- with different styles of expansion (context sensitive
- to be not so bothering). Electric parentheses behave
- \"as they should\" in a presence of a visible region.
- l) Changes msb.el \"on the fly\" to insert a group \"Perl files\";
- m) Can convert from
- if (A) { B }
- to
- B if A;
-
- n) Highlights (by user-choice) either 3-delimiters constructs
- (such as tr/a/b/), or regular expressions and `y/tr';
- o) Highlights trailing whitespace;
- p) Is able to manipulate Perl Regular Expressions to ease
- conversion to a more readable form.
- q) Can ispell POD sections and HERE-DOCs.
- r) Understands comments and character classes inside regular
- expressions; can find matching () and [] in a regular expression.
- s) Allows indentation of //x-style regular expressions;
- t) Highlights different symbols in regular expressions according
- to their function; much less problems with backslashitis.
-
-5) The indentation engine was very smart, but most of tricks may be
-not needed anymore with the support for `syntax-table' property. Has
-progress indicator for indentation (with `imenu' loaded).
-
-6) Indent-region improves inline-comments as well; also corrects
-whitespace *inside* the conditional/loop constructs.
-
-7) Fill-paragraph correctly handles multi-line comments;
-
-8) Can switch to different indentation styles by one command, and restore
-the settings present before the switch.
-
-9) When doing indentation of control constructs, may correct
-line-breaks/spacing between elements of the construct.
-
-10) Uses a linear-time algorith for indentation of regions (on Emaxen with
-capable syntax engines).")
-
-(defvar cperl-speed 'please-ignore-this-line
- "This is an incomplete compendium of what is available in other parts
-of CPerl documentation. (Please inform me if I skept anything.)
-
-There is a perception that CPerl is slower than alternatives. This part
-of documentation is designed to overcome this misconception.
-
-*By default* CPerl tries to enable the most comfortable settings.
-From most points of view, correctly working package is infinitely more
-comfortable than a non-correctly working one, thus by default CPerl
-prefers correctness over speed. Below is the guide how to change
-settings if your preferences are different.
-
-A) Speed of loading the file. When loading file, CPerl may perform a
-scan which indicates places which cannot be parsed by primitive Emacs
-syntax-parsing routines, and marks them up so that either
-
- A1) CPerl may work around these deficiencies (for big chunks, mostly
- PODs and HERE-documents), or
- A2) On capable Emaxen CPerl will use improved syntax-handlings
- which reads mark-up hints directly.
-
- The scan in case A2 is much more comprehensive, thus may be slower.
-
- User can disable syntax-engine-helping scan of A2 by setting
- `cperl-use-syntax-table-text-property'
- variable to nil (if it is set to t).
-
- One can disable the scan altogether (both A1 and A2) by setting
- `cperl-pod-here-scan'
- to nil.
-
-B) Speed of editing operations.
-
- One can add a (minor) speedup to editing operations by setting
- `cperl-use-syntax-table-text-property'
- variable to nil (if it is set to t). This will disable
- syntax-engine-helping scan, thus will make many more Perl
- constructs be wrongly recognized by CPerl, thus may lead to
- wrongly matched parentheses, wrong indentation, etc.
-
- One can unset `cperl-syntaxify-unwind'. This might speed up editing
- of, say, long POD sections.")
-
-(defvar cperl-tips-faces 'please-ignore-this-line
- "CPerl mode uses following faces for highlighting:
-
- `cperl-array-face' Array names
- `cperl-hash-face' Hash names
- `font-lock-comment-face' Comments, PODs and whatever is considered
- syntaxically to be not code
- `font-lock-constant-face' HERE-doc delimiters, labels, delimiters of
- 2-arg operators s/y/tr/ or of RExen,
- `font-lock-function-name-face' Special-cased m// and s//foo/, _ as
- a target of a file tests, file tests,
- subroutine names at the moment of definition
- (except those conflicting with Perl operators),
- package names (when recognized), format names
- `font-lock-keyword-face' Control flow switch constructs, declarators
- `cperl-nonoverridable-face' Non-overridable keywords, modifiers of RExen
- `font-lock-string-face' Strings, qw() constructs, RExen, POD sections,
- literal parts and the terminator of formats
- and whatever is syntaxically considered
- as string literals
- `font-lock-type-face' Overridable keywords
- `font-lock-variable-name-face' Variable declarations, indirect array and
- hash names, POD headers/item names
- `cperl-invalid-face' Trailing whitespace
-
-Note that in several situations the highlighting tries to inform about
-possible confusion, such as different colors for function names in
-declarations depending on what they (do not) override, or special cases
-m// and s/// which do not do what one would expect them to do.
-
-Help with best setup of these faces for printout requested (for each of
-the faces: please specify bold, italic, underline, shadow and box.)
-
-\(Not finished.)")
-
-\f
-
-;;; Portability stuff:
-
-(defmacro cperl-define-key (emacs-key definition &optional xemacs-key)
- (` (define-key cperl-mode-map
- (, (if xemacs-key
- (` (if cperl-xemacs-p (, xemacs-key) (, emacs-key)))
- emacs-key))
- (, definition))))
-
-(defvar cperl-del-back-ch
- (car (append (where-is-internal 'delete-backward-char)
- (where-is-internal 'backward-delete-char-untabify)))
- "Character generated by key bound to `delete-backward-char'.")
-
-(and (vectorp cperl-del-back-ch) (= (length cperl-del-back-ch) 1)
- (setq cperl-del-back-ch (aref cperl-del-back-ch 0)))
-
-(defun cperl-mark-active () (mark)) ; Avoid undefined warning
-(if cperl-xemacs-p
- (progn
- ;; "Active regions" are on: use region only if active
- ;; "Active regions" are off: use region unconditionally
- (defun cperl-use-region-p ()
- (if zmacs-regions (mark) t)))
- (defun cperl-use-region-p ()
- (if transient-mark-mode mark-active t))
- (defun cperl-mark-active () mark-active))
-
-(defsubst cperl-enable-font-lock ()
- cperl-can-font-lock)
-
-(defun cperl-putback-char (c) ; Emacs 19
- (set 'unread-command-events (list c))) ; Avoid undefined warning
-
-(if (boundp 'unread-command-events)
- (if cperl-xemacs-p
- (defun cperl-putback-char (c) ; XEmacs >= 19.12
- (setq unread-command-events (list (eval '(character-to-event c))))))
- (defun cperl-putback-char (c) ; XEmacs <= 19.11
- (set 'unread-command-event (eval '(character-to-event c))))) ; Avoid warnings
-
-(or (fboundp 'uncomment-region)
- (defun uncomment-region (beg end)
- (interactive "r")
- (comment-region beg end -1)))
-
-(defvar cperl-do-not-fontify
- (if (string< emacs-version "19.30")
- 'fontified
- 'lazy-lock)
- "Text property which inhibits refontification.")
-
-(defsubst cperl-put-do-not-fontify (from to &optional post)
- ;; If POST, do not do it with postponed fontification
- (if (and post cperl-syntaxify-by-font-lock)
- nil
- (put-text-property (max (point-min) (1- from))
- to cperl-do-not-fontify t)))
-
-(defcustom cperl-mode-hook nil
- "Hook run by CPerl mode."
- :type 'hook
- :group 'cperl)
-
-(defvar cperl-syntax-state nil)
-(defvar cperl-syntax-done-to nil)
-(defvar cperl-emacs-can-parse (> (length (save-excursion
- (parse-partial-sexp (point) (point)))) 9))
-\f
-;; Make customization possible "in reverse"
-(defsubst cperl-val (symbol &optional default hairy)
- (cond
- ((eq (symbol-value symbol) 'null) default)
- (cperl-hairy (or hairy t))
- (t (symbol-value symbol))))
-\f
-
-(defun cperl-make-indent (column &optional minimum keep)
- "Makes indent of the current line the requested amount.
-If ANEW, removes the old indentation. Works around a bug in ancient
-versions of Emacs."
- (let ((prop (get-text-property (point) 'syntax-type)))
- (or keep
- (delete-horizontal-space))
- (indent-to column minimum)
- ;; In old versions (e.g., 19.33) `indent-to' would not inherit properties
- (and prop
- (> (current-column) 0)
- (save-excursion
- (beginning-of-line)
- (or (get-text-property (point) 'syntax-type)
- (and (looking-at "\\=[ \t]")
- (put-text-property (point) (match-end 0)
- 'syntax-type prop)))))))
-
-;;; Probably it is too late to set these guys already, but it can help later:
-
-(and cperl-clobber-mode-lists
- (setq auto-mode-alist
- (append '(("\\.\\([pP][Llm]\\|al\\)$" . perl-mode)) auto-mode-alist ))
- (and (boundp 'interpreter-mode-alist)
- (setq interpreter-mode-alist (append interpreter-mode-alist
- '(("miniperl" . perl-mode))))))
-(if (fboundp 'eval-when-compile)
- (eval-when-compile
- (mapcar (lambda (p)
- (condition-case nil
- (require p)
- (error nil)))
- '(imenu easymenu etags timer man info))
- (if (fboundp 'ps-extend-face-list)
- (defmacro cperl-ps-extend-face-list (arg)
- (` (ps-extend-face-list (, arg))))
- (defmacro cperl-ps-extend-face-list (arg)
- (` (error "This version of Emacs has no `ps-extend-face-list'"))))
- ;; Calling `cperl-enable-font-lock' below doesn't compile on XEmacs,
- ;; macros instead of defsubsts don't work on Emacs, so we do the
- ;; expansion manually. Any other suggestions?
- (if cperl-can-font-lock
- (require 'font-lock))
- (require 'cl)))
-
-(defvar cperl-mode-abbrev-table nil
- "Abbrev table in use in CPerl mode buffers.")
-
-(add-hook 'edit-var-mode-alist '(perl-mode (regexp . "^cperl-")))
-
-(defvar cperl-mode-map () "Keymap used in CPerl mode.")
-
-(if cperl-mode-map nil
- (setq cperl-mode-map (make-sparse-keymap))
- (cperl-define-key "{" 'cperl-electric-lbrace)
- (cperl-define-key "[" 'cperl-electric-paren)
- (cperl-define-key "(" 'cperl-electric-paren)
- (cperl-define-key "<" 'cperl-electric-paren)
- (cperl-define-key "}" 'cperl-electric-brace)
- (cperl-define-key "]" 'cperl-electric-rparen)
- (cperl-define-key ")" 'cperl-electric-rparen)
- (cperl-define-key ";" 'cperl-electric-semi)
- (cperl-define-key ":" 'cperl-electric-terminator)
- (cperl-define-key "\C-j" 'newline-and-indent)
- (cperl-define-key "\C-c\C-j" 'cperl-linefeed)
- (cperl-define-key "\C-c\C-t" 'cperl-invert-if-unless)
- (cperl-define-key "\C-c\C-a" 'cperl-toggle-auto-newline)
- (cperl-define-key "\C-c\C-k" 'cperl-toggle-abbrev)
- (cperl-define-key "\C-c\C-w" 'cperl-toggle-construct-fix)
- (cperl-define-key "\C-c\C-f" 'auto-fill-mode)
- (cperl-define-key "\C-c\C-e" 'cperl-toggle-electric)
- (cperl-define-key "\C-c\C-b" 'cperl-find-bad-style)
- (cperl-define-key "\C-c\C-p" 'cperl-pod-spell)
- (cperl-define-key "\C-c\C-d" 'cperl-here-doc-spell)
- (cperl-define-key "\C-c\C-n" 'cperl-narrow-to-here-doc)
- (cperl-define-key "\C-c\C-ha" 'cperl-toggle-autohelp)
- (cperl-define-key "\C-c\C-hp" 'cperl-perldoc)
- (cperl-define-key "\C-c\C-hP" 'cperl-perldoc-at-point)
- (cperl-define-key "\e\C-q" 'cperl-indent-exp) ; Usually not bound
- (cperl-define-key [?\C-\M-\|] 'cperl-lineup
- [(control meta |)])
- ;;(cperl-define-key "\M-q" 'cperl-fill-paragraph)
- ;;(cperl-define-key "\e;" 'cperl-indent-for-comment)
- (cperl-define-key "\177" 'cperl-electric-backspace)
- (cperl-define-key "\t" 'cperl-indent-command)
- ;; don't clobber the backspace binding:
- (cperl-define-key "\C-c\C-hF" 'cperl-info-on-command
- [(control c) (control h) F])
- (if (cperl-val 'cperl-clobber-lisp-bindings)
- (progn
- (cperl-define-key "\C-hf"
- ;;(concat (char-to-string help-char) "f") ; does not work
- 'cperl-info-on-command
- [(control h) f])
- (cperl-define-key "\C-hv"
- ;;(concat (char-to-string help-char) "v") ; does not work
- 'cperl-get-help
- [(control h) v])
- (cperl-define-key "\C-c\C-hf"
- ;;(concat (char-to-string help-char) "f") ; does not work
- (key-binding "\C-hf")
- [(control c) (control h) f])
- (cperl-define-key "\C-c\C-hv"
- ;;(concat (char-to-string help-char) "v") ; does not work
- (key-binding "\C-hv")
- [(control c) (control h) v]))
- (cperl-define-key "\C-c\C-hf" 'cperl-info-on-current-command
- [(control c) (control h) f])
- (cperl-define-key "\C-c\C-hv"
- ;;(concat (char-to-string help-char) "v") ; does not work
- 'cperl-get-help
- [(control c) (control h) v]))
- (if (and cperl-xemacs-p
- (<= emacs-minor-version 11) (<= emacs-major-version 19))
- (progn
- ;; substitute-key-definition is usefulness-deenhanced...
- ;;;;;(cperl-define-key "\M-q" 'cperl-fill-paragraph)
- (cperl-define-key "\e;" 'cperl-indent-for-comment)
- (cperl-define-key "\e\C-\\" 'cperl-indent-region))
- (or (boundp 'fill-paragraph-function)
- (substitute-key-definition
- 'fill-paragraph 'cperl-fill-paragraph
- cperl-mode-map global-map))
- (substitute-key-definition
- 'indent-sexp 'cperl-indent-exp
- cperl-mode-map global-map)
- (substitute-key-definition
- 'indent-region 'cperl-indent-region
- cperl-mode-map global-map)
- (substitute-key-definition
- 'indent-for-comment 'cperl-indent-for-comment
- cperl-mode-map global-map)))
-
-(defvar cperl-menu)
-(defvar cperl-lazy-installed)
-(defvar cperl-old-style nil)
-(condition-case nil
- (progn
- (require 'easymenu)
- (easy-menu-define
- cperl-menu cperl-mode-map "Menu for CPerl mode"
- '("Perl"
- ["Beginning of function" beginning-of-defun t]
- ["End of function" end-of-defun t]
- ["Mark function" mark-defun t]
- ["Indent expression" cperl-indent-exp t]
- ["Fill paragraph/comment" cperl-fill-paragraph t]
- "----"
- ["Line up a construction" cperl-lineup (cperl-use-region-p)]
- ["Invert if/unless/while etc" cperl-invert-if-unless t]
- ("Regexp"
- ["Beautify" cperl-beautify-regexp
- cperl-use-syntax-table-text-property]
- ["Beautify one level deep" (cperl-beautify-regexp 1)
- cperl-use-syntax-table-text-property]
- ["Beautify a group" cperl-beautify-level
- cperl-use-syntax-table-text-property]
- ["Beautify a group one level deep" (cperl-beautify-level 1)
- cperl-use-syntax-table-text-property]
- ["Contract a group" cperl-contract-level
- cperl-use-syntax-table-text-property]
- ["Contract groups" cperl-contract-levels
- cperl-use-syntax-table-text-property])
- ["Insert spaces if needed to fix style" cperl-find-bad-style t]
- ["Refresh \"hard\" constructions" cperl-find-pods-heres t]
- "----"
- ["Indent region" cperl-indent-region (cperl-use-region-p)]
- ["Comment region" cperl-comment-region (cperl-use-region-p)]
- ["Uncomment region" cperl-uncomment-region (cperl-use-region-p)]
- "----"
- ["Run" mode-compile (fboundp 'mode-compile)]
- ["Kill" mode-compile-kill (and (fboundp 'mode-compile-kill)
- (get-buffer "*compilation*"))]
- ["Next error" next-error (get-buffer "*compilation*")]
- ["Check syntax" cperl-check-syntax (fboundp 'mode-compile)]
- "----"
- ["Debugger" cperl-db t]
- "----"
- ("Tools"
- ["Imenu" imenu (fboundp 'imenu)]
- ["Imenu on Perl Info" cperl-imenu-on-info (featurep 'imenu)]
- "----"
- ["Ispell PODs" cperl-pod-spell
- ;; Better not to update syntaxification here:
- ;; debugging syntaxificatio can be broken by this???
- (or
- (get-text-property (point-min) 'in-pod)
- (< (progn
- (and cperl-syntaxify-for-menu
- (cperl-update-syntaxification (point-max) (point-max)))
- (next-single-property-change (point-min) 'in-pod nil (point-max)))
- (point-max)))]
- ["Ispell HERE-DOCs" cperl-here-doc-spell
- (< (progn
- (and cperl-syntaxify-for-menu
- (cperl-update-syntaxification (point-max) (point-max)))
- (next-single-property-change (point-min) 'here-doc-group nil (point-max)))
- (point-max))]
- ["Narrow to this HERE-DOC" cperl-narrow-to-here-doc
- (eq 'here-doc (progn
- (and cperl-syntaxify-for-menu
- (cperl-update-syntaxification (point) (point)))
- (get-text-property (point) 'syntax-type)))]
- ["Select this HERE-DOC or POD section"
- cperl-select-this-pod-or-here-doc
- (memq (progn
- (and cperl-syntaxify-for-menu
- (cperl-update-syntaxification (point) (point)))
- (get-text-property (point) 'syntax-type))
- '(here-doc pod))]
- "----"
- ["CPerl pretty print (exprmntl)" cperl-ps-print
- (fboundp 'ps-extend-face-list)]
- "----"
- ["Syntaxify region" cperl-find-pods-heres-region
- (cperl-use-region-p)]
- ["Profile syntaxification" cperl-time-fontification t]
- ["Debug errors in delayed fontification" cperl-emulate-lazy-lock t]
- ["Debug unwind for syntactic scan" cperl-toggle-set-debug-unwind t]
- ["Debug backtrace on syntactic scan (BEWARE!!!)"
- (cperl-toggle-set-debug-unwind nil t) t]
- "----"
- ["Class Hierarchy from TAGS" cperl-tags-hier-init t]
- ;;["Update classes" (cperl-tags-hier-init t) tags-table-list]
- ("Tags"
-;;; ["Create tags for current file" cperl-etags t]
-;;; ["Add tags for current file" (cperl-etags t) t]
-;;; ["Create tags for Perl files in directory" (cperl-etags nil t) t]
-;;; ["Add tags for Perl files in directory" (cperl-etags t t) t]
-;;; ["Create tags for Perl files in (sub)directories"
-;;; (cperl-etags nil 'recursive) t]
-;;; ["Add tags for Perl files in (sub)directories"
-;;; (cperl-etags t 'recursive) t])
-;;;; cperl-write-tags (&optional file erase recurse dir inbuffer)
- ["Create tags for current file" (cperl-write-tags nil t) t]
- ["Add tags for current file" (cperl-write-tags) t]
- ["Create tags for Perl files in directory"
- (cperl-write-tags nil t nil t) t]
- ["Add tags for Perl files in directory"
- (cperl-write-tags nil nil nil t) t]
- ["Create tags for Perl files in (sub)directories"
- (cperl-write-tags nil t t t) t]
- ["Add tags for Perl files in (sub)directories"
- (cperl-write-tags nil nil t t) t]))
- ("Perl docs"
- ["Define word at point" imenu-go-find-at-position
- (fboundp 'imenu-go-find-at-position)]
- ["Help on function" cperl-info-on-command t]
- ["Help on function at point" cperl-info-on-current-command t]
- ["Help on symbol at point" cperl-get-help t]
- ["Perldoc" cperl-perldoc t]
- ["Perldoc on word at point" cperl-perldoc-at-point t]
- ["View manpage of POD in this file" cperl-build-manpage t]
- ["Auto-help on" cperl-lazy-install
- (and (fboundp 'run-with-idle-timer)
- (not cperl-lazy-installed))]
- ["Auto-help off" cperl-lazy-unstall
- (and (fboundp 'run-with-idle-timer)
- cperl-lazy-installed)])
- ("Toggle..."
- ["Auto newline" cperl-toggle-auto-newline t]
- ["Electric parens" cperl-toggle-electric t]
- ["Electric keywords" cperl-toggle-abbrev t]
- ["Fix whitespace on indent" cperl-toggle-construct-fix t]
- ["Auto-help on Perl constructs" cperl-toggle-autohelp t]
- ["Auto fill" auto-fill-mode t])
- ("Indent styles..."
- ["CPerl" (cperl-set-style "CPerl") t]
- ["PerlStyle" (cperl-set-style "PerlStyle") t]
- ["GNU" (cperl-set-style "GNU") t]
- ["C++" (cperl-set-style "C++") t]
- ["FSF" (cperl-set-style "FSF") t]
- ["BSD" (cperl-set-style "BSD") t]
- ["Whitesmith" (cperl-set-style "Whitesmith") t]
- ["Current" (cperl-set-style "Current") t]
- ["Memorized" (cperl-set-style-back) cperl-old-style])
- ("Micro-docs"
- ["Tips" (describe-variable 'cperl-tips) t]
- ["Problems" (describe-variable 'cperl-problems) t]
- ["Non-problems" (describe-variable 'cperl-non-problems) t]
- ["Speed" (describe-variable 'cperl-speed) t]
- ["Praise" (describe-variable 'cperl-praise) t]
- ["Faces" (describe-variable 'cperl-tips-faces) t]
- ["CPerl mode" (describe-function 'cperl-mode) t]
- ["CPerl version"
- (message "The version of master-file for this CPerl is %s"
- cperl-version) t]))))
- (error nil))
-
-(autoload 'c-macro-expand "cmacexp"
- "Display the result of expanding all C macros occurring in the region.
-The expansion is entirely correct because it uses the C preprocessor."
- t)
-
-;;; These two must be unwound, otherwise take exponential time
-(defconst cperl-maybe-white-and-comment-rex "[ \t\n]*\\(#[^\n]*\n[ \t\n]*\\)*"
-"Regular expression to match optional whitespace with interpspersed comments.
-Should contain exactly one group.")
-
-;;; This one is tricky to unwind; still very inefficient...
-(defconst cperl-white-and-comment-rex "\\([ \t\n]\\|#[^\n]*\n\\)+"
-"Regular expression to match whitespace with interpspersed comments.
-Should contain exactly one group.")
-
-
-;;; Is incorporated in `cperl-imenu--function-name-regexp-perl'
-;;; `cperl-outline-regexp', `defun-prompt-regexp'.
-;;; Details of groups in this may be used in several functions; see comments
-;;; near mentioned above variable(s)...
-;;; sub($$):lvalue{} sub:lvalue{} Both allowed...
-(defsubst cperl-after-sub-regexp (named attr) ; 9 groups without attr...
- "Match the text after `sub' in a subroutine declaration.
-If NAMED is nil, allows anonymous subroutines. Matches up to the first \":\"
-of attributes (if present), or end of the name or prototype (whatever is
-the last)."
- (concat ; Assume n groups before this...
- "\\(" ; n+1=name-group
- cperl-white-and-comment-rex ; n+2=pre-name
- "\\(::[a-zA-Z_0-9:']+\\|[a-zA-Z_'][a-zA-Z_0-9:']*\\)" ; n+3=name
- "\\)" ; END n+1=name-group
- (if named "" "?")
- "\\(" ; n+4=proto-group
- cperl-maybe-white-and-comment-rex ; n+5=pre-proto
- "\\(([^()]*)\\)" ; n+6=prototype
- "\\)?" ; END n+4=proto-group
- "\\(" ; n+7=attr-group
- cperl-maybe-white-and-comment-rex ; n+8=pre-attr
- "\\(" ; n+9=start-attr
- ":"
- (if attr (concat
- "\\("
- cperl-maybe-white-and-comment-rex ; whitespace-comments
- "\\(\\sw\\|_\\)+" ; attr-name
- ;; attr-arg (1 level of internal parens allowed!)
- "\\((\\(\\\\.\\|[^\\\\()]\\|([^\\\\()]*)\\)*)\\)?"
- "\\(" ; optional : (XXX allows trailing???)
- cperl-maybe-white-and-comment-rex ; whitespace-comments
- ":\\)?"
- "\\)+")
- "[^:]")
- "\\)"
- "\\)?" ; END n+6=proto-group
- ))
-
-;;; Details of groups in this are used in `cperl-imenu--create-perl-index'
-;;; and `cperl-outline-level'.
-;;;; Was: 2=sub|package; now 2=package-group, 5=package-name 8=sub-name (+3)
-(defvar cperl-imenu--function-name-regexp-perl
- (concat
- "^\\(" ; 1 = all
- "\\([ \t]*package" ; 2 = package-group
- "\\(" ; 3 = package-name-group
- cperl-white-and-comment-rex ; 4 = pre-package-name
- "\\([a-zA-Z_0-9:']+\\)\\)?\\)" ; 5 = package-name
- "\\|"
- "[ \t]*sub"
- (cperl-after-sub-regexp 'named nil) ; 8=name 11=proto 14=attr-start
- cperl-maybe-white-and-comment-rex ; 15=pre-block
- "\\|"
- "=head\\([1-4]\\)[ \t]+" ; 16=level
- "\\([^\n]+\\)$" ; 17=text
- "\\)"))
-
-(defvar cperl-outline-regexp
- (concat cperl-imenu--function-name-regexp-perl "\\|" "\\`"))
-
-(defvar cperl-mode-syntax-table nil
- "Syntax table in use in CPerl mode buffers.")
-
-(defvar cperl-string-syntax-table nil
- "Syntax table in use in CPerl mode string-like chunks.")
-
-(defsubst cperl-1- (p)
- (max (point-min) (1- p)))
-
-(defsubst cperl-1+ (p)
- (min (point-max) (1+ p)))
-
-(if cperl-mode-syntax-table
- ()
- (setq cperl-mode-syntax-table (make-syntax-table))
- (modify-syntax-entry ?\\ "\\" cperl-mode-syntax-table)
- (modify-syntax-entry ?/ "." cperl-mode-syntax-table)
- (modify-syntax-entry ?* "." cperl-mode-syntax-table)
- (modify-syntax-entry ?+ "." cperl-mode-syntax-table)
- (modify-syntax-entry ?- "." cperl-mode-syntax-table)
- (modify-syntax-entry ?= "." cperl-mode-syntax-table)
- (modify-syntax-entry ?% "." cperl-mode-syntax-table)
- (modify-syntax-entry ?< "." cperl-mode-syntax-table)
- (modify-syntax-entry ?> "." cperl-mode-syntax-table)
- (modify-syntax-entry ?& "." cperl-mode-syntax-table)
- (modify-syntax-entry ?$ "\\" cperl-mode-syntax-table)
- (modify-syntax-entry ?\n ">" cperl-mode-syntax-table)
- (modify-syntax-entry ?# "<" cperl-mode-syntax-table)
- (modify-syntax-entry ?' "\"" cperl-mode-syntax-table)
- (modify-syntax-entry ?` "\"" cperl-mode-syntax-table)
- (if cperl-under-as-char
- (modify-syntax-entry ?_ "w" cperl-mode-syntax-table))
- (modify-syntax-entry ?: "_" cperl-mode-syntax-table)
- (modify-syntax-entry ?| "." cperl-mode-syntax-table)
- (setq cperl-string-syntax-table (copy-syntax-table cperl-mode-syntax-table))
- (modify-syntax-entry ?$ "." cperl-string-syntax-table)
- (modify-syntax-entry ?\{ "." cperl-string-syntax-table)
- (modify-syntax-entry ?\} "." cperl-string-syntax-table)
- (modify-syntax-entry ?# "." cperl-string-syntax-table)) ; (?# comment )
-
-
-\f
-;; provide an alias for working with emacs 19. the perl-mode that comes
-;; with it is really bad, and this lets us seamlessly replace it.
-;;;###autoload
-(fset 'perl-mode 'cperl-mode)
-(defvar cperl-faces-init nil)
-;; Fix for msb.el
-(defvar cperl-msb-fixed nil)
-(defvar font-lock-syntactic-keywords)
-(defvar perl-font-lock-keywords)
-(defvar perl-font-lock-keywords-1)
-(defvar perl-font-lock-keywords-2)
-(defvar outline-level)
-(if (fboundp 'defvaralias)
- (let ((f 'defvaralias)) ; Some functions deduce stuff from the mode name...
- (funcall f 'cperl-font-lock-keywords 'perl-font-lock-keywords)
- (funcall f 'cperl-font-lock-keywords-1 'perl-font-lock-keywords-1)
- (funcall f 'cperl-font-lock-keywords-2 'perl-font-lock-keywords-2)))
-
-(defvar cperl-use-major-mode 'perl-mode)
-(defvar cperl-font-lock-multiline-start nil)
-(defvar cperl-font-lock-multiline nil)
-(defvar cperl-compilation-error-regexp-alist nil)
-(defvar cperl-font-locking nil)
-
-;;;###autoload
-(defun cperl-mode ()
- "Major mode for editing Perl code.
-Expression and list commands understand all C brackets.
-Tab indents for Perl code.
-Paragraphs are separated by blank lines only.
-Delete converts tabs to spaces as it moves back.
-
-Various characters in Perl almost always come in pairs: {}, (), [],
-sometimes <>. When the user types the first, she gets the second as
-well, with optional special formatting done on {}. (Disabled by
-default.) You can always quote (with \\[quoted-insert]) the left
-\"paren\" to avoid the expansion. The processing of < is special,
-since most the time you mean \"less\". CPerl mode tries to guess
-whether you want to type pair <>, and inserts is if it
-appropriate. You can set `cperl-electric-parens-string' to the string that
-contains the parenths from the above list you want to be electrical.
-Electricity of parenths is controlled by `cperl-electric-parens'.
-You may also set `cperl-electric-parens-mark' to have electric parens
-look for active mark and \"embrace\" a region if possible.'
-
-CPerl mode provides expansion of the Perl control constructs:
-
- if, else, elsif, unless, while, until, continue, do,
- for, foreach, formy and foreachmy.
-
-and POD directives (Disabled by default, see `cperl-electric-keywords'.)
-
-The user types the keyword immediately followed by a space, which
-causes the construct to be expanded, and the point is positioned where
-she is most likely to want to be. eg. when the user types a space
-following \"if\" the following appears in the buffer: if () { or if ()
-} { } and the cursor is between the parentheses. The user can then
-type some boolean expression within the parens. Having done that,
-typing \\[cperl-linefeed] places you - appropriately indented - on a
-new line between the braces (if you typed \\[cperl-linefeed] in a POD
-directive line, then appropriate number of new lines is inserted).
-
-If CPerl decides that you want to insert \"English\" style construct like
-
- bite if angry;
-
-it will not do any expansion. See also help on variable
-`cperl-extra-newline-before-brace'. (Note that one can switch the
-help message on expansion by setting `cperl-message-electric-keyword'
-to nil.)
-
-\\[cperl-linefeed] is a convenience replacement for typing carriage
-return. It places you in the next line with proper indentation, or if
-you type it inside the inline block of control construct, like
-
- foreach (@lines) {print; print}
-
-and you are on a boundary of a statement inside braces, it will
-transform the construct into a multiline and will place you into an
-appropriately indented blank line. If you need a usual
-`newline-and-indent' behaviour, it is on \\[newline-and-indent],
-see documentation on `cperl-electric-linefeed'.
-
-Use \\[cperl-invert-if-unless] to change a construction of the form
-
- if (A) { B }
-
-into
-
- B if A;
-
-\\{cperl-mode-map}
-
-Setting the variable `cperl-font-lock' to t switches on font-lock-mode
-\(even with older Emacsen), `cperl-electric-lbrace-space' to t switches
-on electric space between $ and {, `cperl-electric-parens-string' is
-the string that contains parentheses that should be electric in CPerl
-\(see also `cperl-electric-parens-mark' and `cperl-electric-parens'),
-setting `cperl-electric-keywords' enables electric expansion of
-control structures in CPerl. `cperl-electric-linefeed' governs which
-one of two linefeed behavior is preferable. You can enable all these
-options simultaneously (recommended mode of use) by setting
-`cperl-hairy' to t. In this case you can switch separate options off
-by setting them to `null'. Note that one may undo the extra
-whitespace inserted by semis and braces in `auto-newline'-mode by
-consequent \\[cperl-electric-backspace].
-
-If your site has perl5 documentation in info format, you can use commands
-\\[cperl-info-on-current-command] and \\[cperl-info-on-command] to access it.
-These keys run commands `cperl-info-on-current-command' and
-`cperl-info-on-command', which one is which is controlled by variable
-`cperl-info-on-command-no-prompt' and `cperl-clobber-lisp-bindings'
-\(in turn affected by `cperl-hairy').
-
-Even if you have no info-format documentation, short one-liner-style
-help is available on \\[cperl-get-help], and one can run perldoc or
-man via menu.
-
-It is possible to show this help automatically after some idle time.
-This is regulated by variable `cperl-lazy-help-time'. Default with
-`cperl-hairy' (if the value of `cperl-lazy-help-time' is nil) is 5
-secs idle time . It is also possible to switch this on/off from the
-menu, or via \\[cperl-toggle-autohelp]. Requires `run-with-idle-timer'.
-
-Use \\[cperl-lineup] to vertically lineup some construction - put the
-beginning of the region at the start of construction, and make region
-span the needed amount of lines.
-
-Variables `cperl-pod-here-scan', `cperl-pod-here-fontify',
-`cperl-pod-face', `cperl-pod-head-face' control processing of POD and
-here-docs sections. With capable Emaxen results of scan are used
-for indentation too, otherwise they are used for highlighting only.
-
-Variables controlling indentation style:
- `cperl-tab-always-indent'
- Non-nil means TAB in CPerl mode should always reindent the current line,
- regardless of where in the line point is when the TAB command is used.
- `cperl-indent-left-aligned-comments'
- Non-nil means that the comment starting in leftmost column should indent.
- `cperl-auto-newline'
- Non-nil means automatically newline before and after braces,
- and after colons and semicolons, inserted in Perl code. The following
- \\[cperl-electric-backspace] will remove the inserted whitespace.
- Insertion after colons requires both this variable and
- `cperl-auto-newline-after-colon' set.
- `cperl-auto-newline-after-colon'
- Non-nil means automatically newline even after colons.
- Subject to `cperl-auto-newline' setting.
- `cperl-indent-level'
- Indentation of Perl statements within surrounding block.
- The surrounding block's indentation is the indentation
- of the line on which the open-brace appears.
- `cperl-continued-statement-offset'
- Extra indentation given to a substatement, such as the
- then-clause of an if, or body of a while, or just a statement continuation.
- `cperl-continued-brace-offset'
- Extra indentation given to a brace that starts a substatement.
- This is in addition to `cperl-continued-statement-offset'.
- `cperl-brace-offset'
- Extra indentation for line if it starts with an open brace.
- `cperl-brace-imaginary-offset'
- An open brace following other text is treated as if it the line started
- this far to the right of the actual line indentation.
- `cperl-label-offset'
- Extra indentation for line that is a label.
- `cperl-min-label-indent'
- Minimal indentation for line that is a label.
-
-Settings for K&R and BSD indentation styles are
- `cperl-indent-level' 5 8
- `cperl-continued-statement-offset' 5 8
- `cperl-brace-offset' -5 -8
- `cperl-label-offset' -5 -8
-
-CPerl knows several indentation styles, and may bulk set the
-corresponding variables. Use \\[cperl-set-style] to do this. Use
-\\[cperl-set-style-back] to restore the memorized preexisting values
-\(both available from menu).
-
-If `cperl-indent-level' is 0, the statement after opening brace in
-column 0 is indented on
-`cperl-brace-offset'+`cperl-continued-statement-offset'.
-
-Turning on CPerl mode calls the hooks in the variable `cperl-mode-hook'
-with no args.
-
-DO NOT FORGET to read micro-docs (available from `Perl' menu)
-or as help on variables `cperl-tips', `cperl-problems',
-`cperl-non-problems', `cperl-praise', `cperl-speed'."
- (interactive)
- (kill-all-local-variables)
- (use-local-map cperl-mode-map)
- (if (cperl-val 'cperl-electric-linefeed)
- (progn
- (local-set-key "\C-J" 'cperl-linefeed)
- (local-set-key "\C-C\C-J" 'newline-and-indent)))
- (if (and
- (cperl-val 'cperl-clobber-lisp-bindings)
- (cperl-val 'cperl-info-on-command-no-prompt))
- (progn
- ;; don't clobber the backspace binding:
- (cperl-define-key "\C-hf" 'cperl-info-on-current-command [(control h) f])
- (cperl-define-key "\C-c\C-hf" 'cperl-info-on-command
- [(control c) (control h) f])))
- (setq major-mode cperl-use-major-mode)
- (setq mode-name "CPerl")
- (if (not cperl-mode-abbrev-table)
- (let ((prev-a-c abbrevs-changed))
- (define-abbrev-table 'cperl-mode-abbrev-table '(
- ("if" "if" cperl-electric-keyword 0)
- ("elsif" "elsif" cperl-electric-keyword 0)
- ("while" "while" cperl-electric-keyword 0)
- ("until" "until" cperl-electric-keyword 0)
- ("unless" "unless" cperl-electric-keyword 0)
- ("else" "else" cperl-electric-else 0)
- ("continue" "continue" cperl-electric-else 0)
- ("for" "for" cperl-electric-keyword 0)
- ("foreach" "foreach" cperl-electric-keyword 0)
- ("formy" "formy" cperl-electric-keyword 0)
- ("foreachmy" "foreachmy" cperl-electric-keyword 0)
- ("do" "do" cperl-electric-keyword 0)
- ("=pod" "=pod" cperl-electric-pod 0)
- ("=over" "=over" cperl-electric-pod 0)
- ("=head1" "=head1" cperl-electric-pod 0)
- ("=head2" "=head2" cperl-electric-pod 0)
- ("pod" "pod" cperl-electric-pod 0)
- ("over" "over" cperl-electric-pod 0)
- ("head1" "head1" cperl-electric-pod 0)
- ("head2" "head2" cperl-electric-pod 0)))
- (setq abbrevs-changed prev-a-c)))
- (setq local-abbrev-table cperl-mode-abbrev-table)
- (if (cperl-val 'cperl-electric-keywords)
- (abbrev-mode 1))
- (set-syntax-table cperl-mode-syntax-table)
- ;; Until Emacs is multi-threaded, we do not actually need it local:
- (make-local-variable 'cperl-font-lock-multiline-start)
- (make-local-variable 'cperl-font-locking)
- (make-local-variable 'outline-regexp)
- ;; (setq outline-regexp imenu-example--function-name-regexp-perl)
- (setq outline-regexp cperl-outline-regexp)
- (make-local-variable 'outline-level)
- (setq outline-level 'cperl-outline-level)
- (make-local-variable 'paragraph-start)
- (setq paragraph-start (concat "^$\\|" page-delimiter))
- (make-local-variable 'paragraph-separate)
- (setq paragraph-separate paragraph-start)
- (make-local-variable 'paragraph-ignore-fill-prefix)
- (setq paragraph-ignore-fill-prefix t)
- (if cperl-xemacs-p
- (progn
- (make-local-variable 'paren-backwards-message)
- (set 'paren-backwards-message t)))
- (make-local-variable 'indent-line-function)
- (setq indent-line-function 'cperl-indent-line)
- (make-local-variable 'require-final-newline)
- (setq require-final-newline t)
- (make-local-variable 'comment-start)
- (setq comment-start "# ")
- (make-local-variable 'comment-end)
- (setq comment-end "")
- (make-local-variable 'comment-column)
- (setq comment-column cperl-comment-column)
- (make-local-variable 'comment-start-skip)
- (setq comment-start-skip "#+ *")
- (make-local-variable 'defun-prompt-regexp)
-;;; "[ \t]*sub"
-;;; (cperl-after-sub-regexp 'named nil) ; 8=name 11=proto 14=attr-start
-;;; cperl-maybe-white-and-comment-rex ; 15=pre-block
- (setq defun-prompt-regexp
- (concat "[ \t]*sub"
- (cperl-after-sub-regexp 'named 'attr-groups)
- cperl-maybe-white-and-comment-rex))
- (make-local-variable 'comment-indent-function)
- (setq comment-indent-function 'cperl-comment-indent)
- (and (boundp 'fill-paragraph-function)
- (progn
- (make-local-variable 'fill-paragraph-function)
- (set 'fill-paragraph-function 'cperl-fill-paragraph)))
- (make-local-variable 'parse-sexp-ignore-comments)
- (setq parse-sexp-ignore-comments t)
- (make-local-variable 'indent-region-function)
- (setq indent-region-function 'cperl-indent-region)
- ;;(setq auto-fill-function 'cperl-do-auto-fill) ; Need to switch on and off!
- (make-local-variable 'imenu-create-index-function)
- (setq imenu-create-index-function
- (function cperl-imenu--create-perl-index))
- (make-local-variable 'imenu-sort-function)
- (setq imenu-sort-function nil)
- (make-local-variable 'vc-rcs-header)
- (set 'vc-rcs-header cperl-vc-rcs-header)
- (make-local-variable 'vc-sccs-header)
- (set 'vc-sccs-header cperl-vc-sccs-header)
- ;; This one is obsolete...
- (make-local-variable 'vc-header-alist)
- (set 'vc-header-alist (or cperl-vc-header-alist ; Avoid warning
- (` ((SCCS (, (car cperl-vc-sccs-header)))
- (RCS (, (car cperl-vc-rcs-header)))))))
- (cond ((boundp 'compilation-error-regexp-alist-alist);; xemacs 20.x
- (make-local-variable 'compilation-error-regexp-alist-alist)
- (set 'compilation-error-regexp-alist-alist
- (cons (cons 'cperl cperl-compilation-error-regexp-alist)
- (symbol-value 'compilation-error-regexp-alist-alist)))
- (let ((f 'compilation-build-compilation-error-regexp-alist))
- (funcall f)))
- ((boundp 'compilation-error-regexp-alist);; xmeacs 19.x
- (make-local-variable 'compilation-error-regexp-alist)
- (set 'compilation-error-regexp-alist
- (cons cperl-compilation-error-regexp-alist
- (symbol-value 'compilation-error-regexp-alist)))))
- (make-local-variable 'font-lock-defaults)
- (setq font-lock-defaults
- (cond
- ((string< emacs-version "19.30")
- '(perl-font-lock-keywords-2 nil nil ((?_ . "w"))))
- ((string< emacs-version "19.33") ; Which one to use?
- '((perl-font-lock-keywords
- perl-font-lock-keywords-1
- perl-font-lock-keywords-2) nil nil ((?_ . "w"))))
- (t
- '((cperl-load-font-lock-keywords
- cperl-load-font-lock-keywords-1
- cperl-load-font-lock-keywords-2) nil nil ((?_ . "w"))))))
- (make-local-variable 'cperl-syntax-state)
- (setq cperl-syntax-state nil) ; reset syntaxification cache
- (if cperl-use-syntax-table-text-property
- (progn
- (make-local-variable 'parse-sexp-lookup-properties)
- ;; Do not introduce variable if not needed, we check it!
- (set 'parse-sexp-lookup-properties t)
- ;; Fix broken font-lock:
- (or (boundp 'font-lock-unfontify-region-function)
- (set 'font-lock-unfontify-region-function
- 'font-lock-default-unfontify-region))
- (unless cperl-xemacs-p ; Our: just a plug for wrong font-lock
- (make-local-variable 'font-lock-unfontify-region-function)
- (set 'font-lock-unfontify-region-function ; not present with old Emacs
- 'cperl-font-lock-unfontify-region-function))
- (make-local-variable 'cperl-syntax-done-to)
- (setq cperl-syntax-done-to nil) ; reset syntaxification cache
- ;; Another bug: unless font-lock-syntactic-keywords, font-lock
- ;; ignores syntax-table text-property. (t) is a hack
- ;; to make font-lock think that font-lock-syntactic-keywords
- ;; are defined
- (make-local-variable 'font-lock-syntactic-keywords)
- (setq font-lock-syntactic-keywords
- (if cperl-syntaxify-by-font-lock
- '(t (cperl-fontify-syntaxically))
- '(t)))))
- (if (boundp 'font-lock-multiline) ; Newer font-lock; use its facilities
- (progn
- (setq cperl-font-lock-multiline t) ; Not localized...
- (set 'font-lock-multiline t)) ; not present with old Emacs; auto-local
- (make-local-variable 'font-lock-fontify-region-function)
- (set 'font-lock-fontify-region-function ; not present with old Emacs
- 'cperl-font-lock-fontify-region-function))
- (make-local-variable 'font-lock-fontify-region-function)
- (set 'font-lock-fontify-region-function ; not present with old Emacs
- 'cperl-font-lock-fontify-region-function)
- (make-local-variable 'cperl-old-style)
- (if (boundp 'normal-auto-fill-function) ; 19.33 and later
- (set (make-local-variable 'normal-auto-fill-function)
- 'cperl-do-auto-fill) ; RMS has it as #'cperl-do-auto-fill ???
- (or (fboundp 'cperl-old-auto-fill-mode)
- (progn
- (fset 'cperl-old-auto-fill-mode (symbol-function 'auto-fill-mode))
- (defun auto-fill-mode (&optional arg)
- (interactive "P")
- (eval '(cperl-old-auto-fill-mode arg)) ; Avoid a warning
- (and auto-fill-function (memq major-mode '(perl-mode cperl-mode))
- (setq auto-fill-function 'cperl-do-auto-fill))))))
- (if (cperl-enable-font-lock)
- (if (cperl-val 'cperl-font-lock)
- (progn (or cperl-faces-init (cperl-init-faces))
- (font-lock-mode 1))))
- (set (make-local-variable 'facemenu-add-face-function)
- 'cperl-facemenu-add-face-function) ; XXXX What this guy is for???
- (and (boundp 'msb-menu-cond)
- (not cperl-msb-fixed)
- (cperl-msb-fix))
- (if (featurep 'easymenu)
- (easy-menu-add cperl-menu)) ; A NOP in RMS Emacs.
- (run-hooks 'cperl-mode-hook)
- (if cperl-hook-after-change
- (progn
- (make-local-hook 'after-change-functions)
- (add-hook 'after-change-functions 'cperl-after-change-function nil t)))
- ;; After hooks since fontification will break this
- (if cperl-pod-here-scan
- (or cperl-syntaxify-by-font-lock
- (progn (or cperl-faces-init (cperl-init-faces-weak))
- (cperl-find-pods-heres)))))
-\f
-;; Fix for perldb - make default reasonable
-(defun cperl-db ()
- (interactive)
- (require 'gud)
- (perldb (read-from-minibuffer "Run perldb (like this): "
- (if (consp gud-perldb-history)
- (car gud-perldb-history)
- (concat "perl " ;;(file-name-nondirectory
- ;; I have problems
- ;; in OS/2
- ;; otherwise
- (buffer-file-name)))
- nil nil
- '(gud-perldb-history . 1))))
-\f
-(defun cperl-msb-fix ()
- ;; Adds perl files to msb menu, supposes that msb is already loaded
- (setq cperl-msb-fixed t)
- (let* ((l (length msb-menu-cond))
- (last (nth (1- l) msb-menu-cond))
- (precdr (nthcdr (- l 2) msb-menu-cond)) ; cdr of this is last
- (handle (1- (nth 1 last))))
- (setcdr precdr (list
- (list
- '(memq major-mode '(cperl-mode perl-mode))
- handle
- "Perl Files (%d)")
- last))))
-\f
-;; This is used by indent-for-comment
-;; to decide how much to indent a comment in CPerl code
-;; based on its context. Do fallback if comment is found wrong.
-
-(defvar cperl-wrong-comment)
-(defvar cperl-st-cfence '(14)) ; Comment-fence
-(defvar cperl-st-sfence '(15)) ; String-fence
-(defvar cperl-st-punct '(1))
-(defvar cperl-st-word '(2))
-(defvar cperl-st-bra '(4 . ?\>))
-(defvar cperl-st-ket '(5 . ?\<))
-
-
-(defun cperl-comment-indent ()
- (let ((p (point)) (c (current-column)) was phony)
- (if (looking-at "^#") 0 ; Existing comment at bol stays there.
- ;; Wrong comment found
- (save-excursion
- (setq was (cperl-to-comment-or-eol)
- phony (eq (get-text-property (point) 'syntax-table)
- cperl-st-cfence))
- (if phony
- (progn
- (re-search-forward "#\\|$") ; Hmm, what about embedded #?
- (if (eq (preceding-char) ?\#)
- (forward-char -1))
- (setq was nil)))
- (if (= (point) p)
- (progn
- (skip-chars-backward " \t")
- (max (1+ (current-column)) ; Else indent at comment column
- comment-column))
- (if was nil
- (insert comment-start)
- (backward-char (length comment-start)))
- (setq cperl-wrong-comment t)
- (cperl-make-indent comment-column 1 'keep) ; Indent minimum 1
- c))))) ; except leave at least one space.
-
-;;;(defun cperl-comment-indent-fallback ()
-;;; "Is called if the standard comment-search procedure fails.
-;;;Point is at start of real comment."
-;;; (let ((c (current-column)) target cnt prevc)
-;;; (if (= c comment-column) nil
-;;; (setq cnt (skip-chars-backward "[ \t]"))
-;;; (setq target (max (1+ (setq prevc
-;;; (current-column))) ; Else indent at comment column
-;;; comment-column))
-;;; (if (= c comment-column) nil
-;;; (delete-backward-char cnt)
-;;; (while (< prevc target)
-;;; (insert "\t")
-;;; (setq prevc (current-column)))
-;;; (if (> prevc target) (progn (delete-char -1) (setq prevc (current-column))))
-;;; (while (< prevc target)
-;;; (insert " ")
-;;; (setq prevc (current-column)))))))
-
-(defun cperl-indent-for-comment ()
- "Substitute for `indent-for-comment' in CPerl."
- (interactive)
- (let (cperl-wrong-comment)
- (indent-for-comment)
- (if cperl-wrong-comment ; set by `cperl-comment-indent'
- (progn (cperl-to-comment-or-eol)
- (forward-char (length comment-start))))))
-
-(defun cperl-comment-region (b e arg)
- "Comment or uncomment each line in the region in CPerl mode.
-See `comment-region'."
- (interactive "r\np")
- (let ((comment-start "#"))
- (comment-region b e arg)))
-
-(defun cperl-uncomment-region (b e arg)
- "Uncomment or comment each line in the region in CPerl mode.
-See `comment-region'."
- (interactive "r\np")
- (let ((comment-start "#"))
- (comment-region b e (- arg))))
-
-(defvar cperl-brace-recursing nil)
-
-(defun cperl-electric-brace (arg &optional only-before)
- "Insert character and correct line's indentation.
-If ONLY-BEFORE and `cperl-auto-newline', will insert newline before the
-place (even in empty line), but not after. If after \")\" and the inserted
-char is \"{\", insert extra newline before only if
-`cperl-extra-newline-before-brace'."
- (interactive "P")
- (let (insertpos
- (other-end (if (and cperl-electric-parens-mark
- (cperl-mark-active)
- (< (mark) (point)))
- (mark)
- nil)))
- (if (and other-end
- (not cperl-brace-recursing)
- (cperl-val 'cperl-electric-parens)
- (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point)))
- ;; Need to insert a matching pair
- (progn
- (save-excursion
- (setq insertpos (point-marker))
- (goto-char other-end)
- (setq last-command-char ?\{)
- (cperl-electric-lbrace arg insertpos))
- (forward-char 1))
- ;; Check whether we close something "usual" with `}'
- (if (and (eq last-command-char ?\})
- (not
- (condition-case nil
- (save-excursion
- (up-list (- (prefix-numeric-value arg)))
- ;;(cperl-after-block-p (point-min))
- (or (cperl-after-expr-p nil "{;)")
- ;; after sub, else, continue
- (cperl-after-block-p nil 'pre)))
- (error nil))))
- ;; Just insert the guy
- (self-insert-command (prefix-numeric-value arg))
- (if (and (not arg) ; No args, end (of empty line or auto)
- (eolp)
- (or (and (null only-before)
- (save-excursion
- (skip-chars-backward " \t")
- (bolp)))
- (and (eq last-command-char ?\{) ; Do not insert newline
- ;; if after ")" and `cperl-extra-newline-before-brace'
- ;; is nil, do not insert extra newline.
- (not cperl-extra-newline-before-brace)
- (save-excursion
- (skip-chars-backward " \t")
- (eq (preceding-char) ?\))))
- (if cperl-auto-newline
- (progn (cperl-indent-line) (newline) t) nil)))
- (progn
- (self-insert-command (prefix-numeric-value arg))
- (cperl-indent-line)
- (if cperl-auto-newline
- (setq insertpos (1- (point))))
- (if (and cperl-auto-newline (null only-before))
- (progn
- (newline)
- (cperl-indent-line)))
- (save-excursion
- (if insertpos (progn (goto-char insertpos)
- (search-forward (make-string
- 1 last-command-char))
- (setq insertpos (1- (point)))))
- (delete-char -1))))
- (if insertpos
- (save-excursion
- (goto-char insertpos)
- (self-insert-command (prefix-numeric-value arg)))
- (self-insert-command (prefix-numeric-value arg)))))))
-
-(defun cperl-electric-lbrace (arg &optional end)
- "Insert character, correct line's indentation, correct quoting by space."
- (interactive "P")
- (let ((cperl-brace-recursing t)
- (cperl-auto-newline cperl-auto-newline)
- (other-end (or end
- (if (and cperl-electric-parens-mark
- (cperl-mark-active)
- (> (mark) (point)))
- (save-excursion
- (goto-char (mark))
- (point-marker))
- nil)))
- pos after)
- (and (cperl-val 'cperl-electric-lbrace-space)
- (eq (preceding-char) ?$)
- (save-excursion
- (skip-chars-backward "$")
- (looking-at "\\(\\$\\$\\)*\\$\\([^\\$]\\|$\\)"))
- (insert ?\ ))
- ;; Check whether we are in comment
- (if (and
- (save-excursion
- (beginning-of-line)
- (not (looking-at "[ \t]*#")))
- (cperl-after-expr-p nil "{;)"))
- nil
- (setq cperl-auto-newline nil))
- (cperl-electric-brace arg)
- (and (cperl-val 'cperl-electric-parens)
- (eq last-command-char ?{)
- (memq last-command-char
- (append cperl-electric-parens-string nil))
- (or (if other-end (goto-char (marker-position other-end)))
- t)
- (setq last-command-char ?} pos (point))
- (progn (cperl-electric-brace arg t)
- (goto-char pos)))))
-
-(defun cperl-electric-paren (arg)
- "Insert an opening parenthesis or a matching pair of parentheses.
-See `cperl-electric-parens'."
- (interactive "P")
- (let ((beg (save-excursion (beginning-of-line) (point)))
- (other-end (if (and cperl-electric-parens-mark
- (cperl-mark-active)
- (> (mark) (point)))
- (save-excursion
- (goto-char (mark))
- (point-marker))
- nil)))
- (if (and (cperl-val 'cperl-electric-parens)
- (memq last-command-char
- (append cperl-electric-parens-string nil))
- (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
- ;;(not (save-excursion (search-backward "#" beg t)))
- (if (eq last-command-char ?<)
- (progn
- (and abbrev-mode ; later it is too late, may be after `for'
- (expand-abbrev))
- (cperl-after-expr-p nil "{;(,:="))
- 1))
- (progn
- (self-insert-command (prefix-numeric-value arg))
- (if other-end (goto-char (marker-position other-end)))
- (insert (make-string
- (prefix-numeric-value arg)
- (cdr (assoc last-command-char '((?{ .?})
- (?[ . ?])
- (?( . ?))
- (?< . ?>))))))
- (forward-char (- (prefix-numeric-value arg))))
- (self-insert-command (prefix-numeric-value arg)))))
-
-(defun cperl-electric-rparen (arg)
- "Insert a matching pair of parentheses if marking is active.
-If not, or if we are not at the end of marking range, would self-insert.
-Affected by `cperl-electric-parens'."
- (interactive "P")
- (let ((beg (save-excursion (beginning-of-line) (point)))
- (other-end (if (and cperl-electric-parens-mark
- (cperl-val 'cperl-electric-parens)
- (memq last-command-char
- (append cperl-electric-parens-string nil))
- (cperl-mark-active)
- (< (mark) (point)))
- (mark)
- nil))
- p)
- (if (and other-end
- (cperl-val 'cperl-electric-parens)
- (memq last-command-char '( ?\) ?\] ?\} ?\> ))
- (>= (save-excursion (cperl-to-comment-or-eol) (point)) (point))
- ;;(not (save-excursion (search-backward "#" beg t)))
- )
- (progn
- (self-insert-command (prefix-numeric-value arg))
- (setq p (point))
- (if other-end (goto-char other-end))
- (insert (make-string
- (prefix-numeric-value arg)
- (cdr (assoc last-command-char '((?\} . ?\{)
- (?\] . ?\[)
- (?\) . ?\()
- (?\> . ?\<))))))
- (goto-char (1+ p)))
- (self-insert-command (prefix-numeric-value arg)))))
-
-(defun cperl-electric-keyword ()
- "Insert a construction appropriate after a keyword.
-Help message may be switched off by setting `cperl-message-electric-keyword'
-to nil."
- (let ((beg (save-excursion (beginning-of-line) (point)))
- (dollar (and (eq last-command-char ?$)
- (eq this-command 'self-insert-command)))
- (delete (and (memq last-command-char '(?\ ?\n ?\t ?\f))
- (memq this-command '(self-insert-command newline))))
- my do)
- (and (save-excursion
- (condition-case nil
- (progn
- (backward-sexp 1)
- (setq do (looking-at "do\\>")))
- (error nil))
- (cperl-after-expr-p nil "{;:"))
- (save-excursion
- (not
- (re-search-backward
- "[#\"'`]\\|\\<q\\(\\|[wqxr]\\)\\>"
- beg t)))
- (save-excursion (or (not (re-search-backward "^=" nil t))
- (or
- (looking-at "=cut")
- (and cperl-use-syntax-table-text-property
- (not (eq (get-text-property (point)
- 'syntax-type)
- 'pod))))))
- (save-excursion (forward-sexp -1)
- (not (memq (following-char) (append "$@%&*" nil))))
- (progn
- (and (eq (preceding-char) ?y)
- (progn ; "foreachmy"
- (forward-char -2)
- (insert " ")
- (forward-char 2)
- (setq my t dollar t
- delete
- (memq this-command '(self-insert-command newline)))))
- (and dollar (insert " $"))
- (cperl-indent-line)
- ;;(insert " () {\n}")
- (cond
- (cperl-extra-newline-before-brace
- (insert (if do "\n" " ()\n"))
- (insert "{")
- (cperl-indent-line)
- (insert "\n")
- (cperl-indent-line)
- (insert "\n}")
- (and do (insert " while ();")))
- (t
- (insert (if do " {\n} while ();" " () {\n}"))))
- (or (looking-at "[ \t]\\|$") (insert " "))
- (cperl-indent-line)
- (if dollar (progn (search-backward "$")
- (if my
- (forward-char 1)
- (delete-char 1)))
- (search-backward ")")
- (if (eq last-command-char ?\()
- (progn ; Avoid "if (())"
- (delete-backward-char 1)
- (delete-backward-char -1))))
- (if delete
- (cperl-putback-char cperl-del-back-ch))
- (if cperl-message-electric-keyword
- (message "Precede char by C-q to avoid expansion"))))))
-
-(defun cperl-ensure-newlines (n &optional pos)
- "Make sure there are N newlines after the point."
- (or pos (setq pos (point)))
- (if (looking-at "\n")
- (forward-char 1)
- (insert "\n"))
- (if (> n 1)
- (cperl-ensure-newlines (1- n) pos)
- (goto-char pos)))
-
-(defun cperl-electric-pod ()
- "Insert a POD chunk appropriate after a =POD directive."
- (let ((delete (and (memq last-command-char '(?\ ?\n ?\t ?\f))
- (memq this-command '(self-insert-command newline))))
- head1 notlast name p really-delete over)
- (and (save-excursion
- (forward-word -1)
- (and
- (eq (preceding-char) ?=)
- (progn
- (setq head1 (looking-at "head1\\>[ \t]*$"))
- (setq over (and (looking-at "over\\>[ \t]*$")
- (not (looking-at "over[ \t]*\n\n\n*=item\\>"))))
- (forward-char -1)
- (bolp))
- (or
- (get-text-property (point) 'in-pod)
- (cperl-after-expr-p nil "{;:")
- (and (re-search-backward "\\(\\`\n?\\|^\n\\)=\\sw+" (point-min) t)
- (not (looking-at "\n*=cut"))
- (or (not cperl-use-syntax-table-text-property)
- (eq (get-text-property (point) 'syntax-type) 'pod))))))
- (progn
- (save-excursion
- (setq notlast (re-search-forward "^\n=" nil t)))
- (or notlast
- (progn
- (insert "\n\n=cut")
- (cperl-ensure-newlines 2)
- (forward-word -2)
- (if (and head1
- (not
- (save-excursion
- (forward-char -1)
- (re-search-backward "\\(\\`\n?\\|\n\n\\)=head1\\>"
- nil t)))) ; Only one
- (progn
- (forward-word 1)
- (setq name (file-name-sans-extension
- (file-name-nondirectory (buffer-file-name)))
- p (point))
- (insert " NAME\n\n" name
- " - \n\n=head1 SYNOPSIS\n\n\n\n"
- "=head1 DESCRIPTION")
- (cperl-ensure-newlines 4)
- (goto-char p)
- (forward-word 2)
- (end-of-line)
- (setq really-delete t))
- (forward-word 1))))
- (if over
- (progn
- (setq p (point))
- (insert "\n\n=item \n\n\n\n"
- "=back")
- (cperl-ensure-newlines 2)
- (goto-char p)
- (forward-word 1)
- (end-of-line)
- (setq really-delete t)))
- (if (and delete really-delete)
- (cperl-putback-char cperl-del-back-ch))))))
-
-(defun cperl-electric-else ()
- "Insert a construction appropriate after a keyword.
-Help message may be switched off by setting `cperl-message-electric-keyword'
-to nil."
- (let ((beg (save-excursion (beginning-of-line) (point))))
- (and (save-excursion
- (backward-sexp 1)
- (cperl-after-expr-p nil "{;:"))
- (save-excursion
- (not
- (re-search-backward
- "[#\"'`]\\|\\<q\\(\\|[wqxr]\\)\\>"
- beg t)))
- (save-excursion (or (not (re-search-backward "^=" nil t))
- (looking-at "=cut")
- (and cperl-use-syntax-table-text-property
- (not (eq (get-text-property (point)
- 'syntax-type)
- 'pod)))))
- (progn
- (cperl-indent-line)
- ;;(insert " {\n\n}")
- (cond
- (cperl-extra-newline-before-brace
- (insert "\n")
- (insert "{")
- (cperl-indent-line)
- (insert "\n\n}"))
- (t
- (insert " {\n\n}")))
- (or (looking-at "[ \t]\\|$") (insert " "))
- (cperl-indent-line)
- (forward-line -1)
- (cperl-indent-line)
- (cperl-putback-char cperl-del-back-ch)
- (setq this-command 'cperl-electric-else)
- (if cperl-message-electric-keyword
- (message "Precede char by C-q to avoid expansion"))))))
-
-(defun cperl-linefeed ()
- "Go to end of line, open a new line and indent appropriately.
-If in POD, insert appropriate lines."
- (interactive)
- (let ((beg (save-excursion (beginning-of-line) (point)))
- (end (save-excursion (end-of-line) (point)))
- (pos (point)) start over cut res)
- (if (and ; Check if we need to split:
- ; i.e., on a boundary and inside "{...}"
- (save-excursion (cperl-to-comment-or-eol)
- (>= (point) pos)) ; Not in a comment
- (or (save-excursion
- (skip-chars-backward " \t" beg)
- (forward-char -1)
- (looking-at "[;{]")) ; After { or ; + spaces
- (looking-at "[ \t]*}") ; Before }
- (re-search-forward "\\=[ \t]*;" end t)) ; Before spaces + ;
- (save-excursion
- (and
- (eq (car (parse-partial-sexp pos end -1)) -1)
- ; Leave the level of parens
- (looking-at "[,; \t]*\\($\\|#\\)") ; Comma to allow anon subr
- ; Are at end
- (cperl-after-block-p (point-min))
- (progn
- (backward-sexp 1)
- (setq start (point-marker))
- (<= start pos))))) ; Redundant? Are after the
- ; start of parens group.
- (progn
- (skip-chars-backward " \t")
- (or (memq (preceding-char) (append ";{" nil))
- (insert ";"))
- (insert "\n")
- (forward-line -1)
- (cperl-indent-line)
- (goto-char start)
- (or (looking-at "{[ \t]*$") ; If there is a statement
- ; before, move it to separate line
- (progn
- (forward-char 1)
- (insert "\n")
- (cperl-indent-line)))
- (forward-line 1) ; We are on the target line
- (cperl-indent-line)
- (beginning-of-line)
- (or (looking-at "[ \t]*}[,; \t]*$") ; If there is a statement
- ; after, move it to separate line
- (progn
- (end-of-line)
- (search-backward "}" beg)
- (skip-chars-backward " \t")
- (or (memq (preceding-char) (append ";{" nil))
- (insert ";"))
- (insert "\n")
- (cperl-indent-line)
- (forward-line -1)))
- (forward-line -1) ; We are on the line before target
- (end-of-line)
- (newline-and-indent))
- (end-of-line) ; else - no splitting
- (cond
- ((and (looking-at "\n[ \t]*{$")
- (save-excursion
- (skip-chars-backward " \t")
- (eq (preceding-char) ?\)))) ; Probably if () {} group
- ; with an extra newline.
- (forward-line 2)
- (cperl-indent-line))
- ((save-excursion ; In POD header
- (forward-paragraph -1)
- ;; (re-search-backward "\\(\\`\n?\\|\n\n\\)=head1\\b")
- ;; We are after \n now, so look for the rest
- (if (looking-at "\\(\\`\n?\\|\n\\)=\\sw+")
- (progn
- (setq cut (looking-at "\\(\\`\n?\\|\n\\)=cut\\>"))
- (setq over (looking-at "\\(\\`\n?\\|\n\\)=over\\>"))
- t)))
- (if (and over
- (progn
- (forward-paragraph -1)
- (forward-word 1)
- (setq pos (point))
- (setq cut (buffer-substring (point)
- (save-excursion
- (end-of-line)
- (point))))
- (delete-char (- (save-excursion (end-of-line) (point))
- (point)))
- (setq res (expand-abbrev))
- (save-excursion
- (goto-char pos)
- (insert cut))
- res))
- nil
- (cperl-ensure-newlines (if cut 2 4))
- (forward-line 2)))
- ((get-text-property (point) 'in-pod) ; In POD section
- (cperl-ensure-newlines 4)
- (forward-line 2))
- ((looking-at "\n[ \t]*$") ; Next line is empty - use it.
- (forward-line 1)
- (cperl-indent-line))
- (t
- (newline-and-indent))))))
-
-(defun cperl-electric-semi (arg)
- "Insert character and correct line's indentation."
- (interactive "P")
- (if cperl-auto-newline
- (cperl-electric-terminator arg)
- (self-insert-command (prefix-numeric-value arg))
- (if cperl-autoindent-on-semi
- (cperl-indent-line))))
-
-(defun cperl-electric-terminator (arg)
- "Insert character and correct line's indentation."
- (interactive "P")
- (let ((end (point))
- (auto (and cperl-auto-newline
- (or (not (eq last-command-char ?:))
- cperl-auto-newline-after-colon)))
- insertpos)
- (if (and ;;(not arg)
- (eolp)
- (not (save-excursion
- (beginning-of-line)
- (skip-chars-forward " \t")
- (or
- ;; Ignore in comment lines
- (= (following-char) ?#)
- ;; Colon is special only after a label
- ;; So quickly rule out most other uses of colon
- ;; and do no indentation for them.
- (and (eq last-command-char ?:)
- (save-excursion
- (forward-word 1)
- (skip-chars-forward " \t")
- (and (< (point) end)
- (progn (goto-char (- end 1))
- (not (looking-at ":"))))))
- (progn
- (beginning-of-defun)
- (let ((pps (parse-partial-sexp (point) end)))
- (or (nth 3 pps) (nth 4 pps) (nth 5 pps))))))))
- (progn
- (self-insert-command (prefix-numeric-value arg))
- ;;(forward-char -1)
- (if auto (setq insertpos (point-marker)))
- ;;(forward-char 1)
- (cperl-indent-line)
- (if auto
- (progn
- (newline)
- (cperl-indent-line)))
- (save-excursion
- (if insertpos (goto-char (1- (marker-position insertpos)))
- (forward-char -1))
- (delete-char 1))))
- (if insertpos
- (save-excursion
- (goto-char insertpos)
- (self-insert-command (prefix-numeric-value arg)))
- (self-insert-command (prefix-numeric-value arg)))))
-
-(defun cperl-electric-backspace (arg)
- "Backspace, or remove the whitespace around the point inserted by an electric
-key. Will untabivy if `cperl-electric-backspace-untabify' is non-nil."
- (interactive "p")
- (if (and cperl-auto-newline
- (memq last-command '(cperl-electric-semi
- cperl-electric-terminator
- cperl-electric-lbrace))
- (memq (preceding-char) '(?\ ?\t ?\n)))
- (let (p)
- (if (eq last-command 'cperl-electric-lbrace)
- (skip-chars-forward " \t\n"))
- (setq p (point))
- (skip-chars-backward " \t\n")
- (delete-region (point) p))
- (and (eq last-command 'cperl-electric-else)
- ;; We are removing the whitespace *inside* cperl-electric-else
- (setq this-command 'cperl-electric-else-really))
- (if (and cperl-auto-newline
- (eq last-command 'cperl-electric-else-really)
- (memq (preceding-char) '(?\ ?\t ?\n)))
- (let (p)
- (skip-chars-forward " \t\n")
- (setq p (point))
- (skip-chars-backward " \t\n")
- (delete-region (point) p))
- (if cperl-electric-backspace-untabify
- (backward-delete-char-untabify arg)
- (delete-backward-char arg)))))
-
-(defun cperl-inside-parens-p () ;; NOT USED????
- (condition-case ()
- (save-excursion
- (save-restriction
- (narrow-to-region (point)
- (progn (beginning-of-defun) (point)))
- (goto-char (point-max))
- (= (char-after (or (scan-lists (point) -1 1) (point-min))) ?\()))
- (error nil)))
-\f
-(defun cperl-indent-command (&optional whole-exp)
- "Indent current line as Perl code, or in some cases insert a tab character.
-If `cperl-tab-always-indent' is non-nil (the default), always indent current
-line. Otherwise, indent the current line only if point is at the left margin
-or in the line's indentation; otherwise insert a tab.
-
-A numeric argument, regardless of its value,
-means indent rigidly all the lines of the expression starting after point
-so that this line becomes properly indented.
-The relative indentation among the lines of the expression are preserved."
- (interactive "P")
- (cperl-update-syntaxification (point) (point))
- (if whole-exp
- ;; If arg, always indent this line as Perl
- ;; and shift remaining lines of expression the same amount.
- (let ((shift-amt (cperl-indent-line))
- beg end)
- (save-excursion
- (if cperl-tab-always-indent
- (beginning-of-line))
- (setq beg (point))
- (forward-sexp 1)
- (setq end (point))
- (goto-char beg)
- (forward-line 1)
- (setq beg (point)))
- (if (and shift-amt (> end beg))
- (indent-code-rigidly beg end shift-amt "#")))
- (if (and (not cperl-tab-always-indent)
- (save-excursion
- (skip-chars-backward " \t")
- (not (bolp))))
- (insert-tab)
- (cperl-indent-line))))
-
-(defun cperl-indent-line (&optional parse-data)
- "Indent current line as Perl code.
-Return the amount the indentation changed by."
- (let ((case-fold-search nil)
- (pos (- (point-max) (point)))
- indent i beg shift-amt)
- (setq indent (cperl-calculate-indent parse-data)
- i indent)
- (beginning-of-line)
- (setq beg (point))
- (cond ((or (eq indent nil) (eq indent t))
- (setq indent (current-indentation) i nil))
- ;;((eq indent t) ; Never?
- ;; (setq indent (cperl-calculate-indent-within-comment)))
- ;;((looking-at "[ \t]*#")
- ;; (setq indent 0))
- (t
- (skip-chars-forward " \t")
- (if (listp indent) (setq indent (car indent)))
- (cond ((looking-at "[A-Za-z_][A-Za-z_0-9]*:[^:]")
- (and (> indent 0)
- (setq indent (max cperl-min-label-indent
- (+ indent cperl-label-offset)))))
- ((= (following-char) ?})
- (setq indent (- indent cperl-indent-level)))
- ((memq (following-char) '(?\) ?\])) ; To line up with opening paren.
- (setq indent (+ indent cperl-close-paren-offset)))
- ((= (following-char) ?{)
- (setq indent (+ indent cperl-brace-offset))))))
- (skip-chars-forward " \t")
- (setq shift-amt (and i (- indent (current-column))))
- (if (or (not shift-amt)
- (zerop shift-amt))
- (if (> (- (point-max) pos) (point))
- (goto-char (- (point-max) pos)))
- ;;;(delete-region beg (point))
- ;;;(indent-to indent)
- (cperl-make-indent indent)
- ;; If initial point was within line's indentation,
- ;; position after the indentation. Else stay at same point in text.
- (if (> (- (point-max) pos) (point))
- (goto-char (- (point-max) pos))))
- shift-amt))
-
-(defun cperl-after-label ()
- ;; Returns true if the point is after label. Does not do save-excursion.
- (and (eq (preceding-char) ?:)
- (memq (char-syntax (char-after (- (point) 2)))
- '(?w ?_))
- (progn
- (backward-sexp)
- (looking-at "[a-zA-Z_][a-zA-Z0-9_]*:[^:]"))))
-
-(defun cperl-get-state (&optional parse-start start-state)
- ;; returns list (START STATE DEPTH PRESTART),
- ;; START is a good place to start parsing, or equal to
- ;; PARSE-START if preset,
- ;; STATE is what is returned by `parse-partial-sexp'.
- ;; DEPTH is true is we are immediately after end of block
- ;; which contains START.
- ;; PRESTART is the position basing on which START was found.
- (save-excursion
- (let ((start-point (point)) depth state start prestart)
- (if (and parse-start
- (<= parse-start start-point))
- (goto-char parse-start)
- (beginning-of-defun)
- (setq start-state nil))
- (setq prestart (point))
- (if start-state nil
- ;; Try to go out, if sub is not on the outermost level
- (while (< (point) start-point)
- (setq start (point) parse-start start depth nil
- state (parse-partial-sexp start start-point -1))
- (if (> (car state) -1) nil
- ;; The current line could start like }}}, so the indentation
- ;; corresponds to a different level than what we reached
- (setq depth t)
- (beginning-of-line 2))) ; Go to the next line.
- (if start (goto-char start))) ; Not at the start of file
- (setq start (point))
- (or state (setq state (parse-partial-sexp start start-point -1 nil start-state)))
- (list start state depth prestart))))
-
-(defvar cperl-look-for-prop '((pod in-pod) (here-doc-delim here-doc-group)))
-
-(defun cperl-beginning-of-property (p prop &optional lim)
- "Given that P has a property PROP, find where the property starts.
-Will not look before LIM."
- ;;; XXXX What to do at point-max???
- (or (previous-single-property-change (cperl-1+ p) prop lim)
- (point-min))
-;;; (cond ((eq p (point-min))
-;;; p)
-;;; ((and lim (<= p lim))
-;;; p)
-;;; ((not (get-text-property (1- p) prop))
-;;; p)
-;;; (t (or (previous-single-property-change p look-prop lim)
-;;; (point-min))))
- )
-
-(defun cperl-calculate-indent (&optional parse-data) ; was parse-start
- "Return appropriate indentation for current line as Perl code.
-In usual case returns an integer: the column to indent to.
-Returns nil if line starts inside a string, t if in a comment.
-
-Will not correct the indentation for labels, but will correct it for braces
-and closing parentheses and brackets."
- (cperl-update-syntaxification (point) (point))
- (save-excursion
- (if (or
- (and (memq (get-text-property (point) 'syntax-type)
- '(pod here-doc here-doc-delim format))
- (not (get-text-property (point) 'indentable)))
- ;; before start of POD - whitespace found since do not have 'pod!
- (and (looking-at "[ \t]*\n=")
- (error "Spaces before POD section!"))
- (and (not cperl-indent-left-aligned-comments)
- (looking-at "^#")))
- nil
- (beginning-of-line)
- (let* ((indent-point (point))
- (char-after-pos (save-excursion
- (skip-chars-forward " \t")
- (point)))
- (char-after (char-after char-after-pos))
- (in-pod (get-text-property (point) 'in-pod))
- (pre-indent-point (point))
- p prop look-prop is-block delim)
- (cond
- (in-pod
- ;; In the verbatim part, probably code example. What to do???
- )
- (t
- (save-excursion
- ;; Not in POD
- (cperl-backward-to-noncomment nil)
- (setq p (max (point-min) (1- (point)))
- prop (get-text-property p 'syntax-type)
- look-prop (or (nth 1 (assoc prop cperl-look-for-prop))
- 'syntax-type))
- (if (memq prop '(pod here-doc format here-doc-delim))
- (progn
- (goto-char (cperl-beginning-of-property p look-prop))
- (beginning-of-line)
- (setq pre-indent-point (point)))))))
- (goto-char pre-indent-point)
- (let* ((case-fold-search nil)
- (s-s (cperl-get-state (car parse-data) (nth 1 parse-data)))
- (start (or (nth 2 parse-data)
- (nth 0 s-s)))
- (state (nth 1 s-s))
- (containing-sexp (car (cdr state)))
- old-indent)
- (if (and
- ;;containing-sexp ;; We are buggy at toplevel :-(
- parse-data)
- (progn
- (setcar parse-data pre-indent-point)
- (setcar (cdr parse-data) state)
- (or (nth 2 parse-data)
- (setcar (cddr parse-data) start))
- ;; Before this point: end of statement
- (setq old-indent (nth 3 parse-data))))
- (cond ((get-text-property (point) 'indentable)
- ;; indent to "after" the surrounding open
- ;; (same offset as `cperl-beautify-regexp-piece'),
- ;; skip blanks if we do not close the expression.
- (setq delim ; We do not close the expression
- (get-text-property
- (cperl-1+ char-after-pos) 'indentable)
- p (1+ (cperl-beginning-of-property
- (point) 'indentable))
- is-block ; misused for: preceeding line in REx
- (save-excursion ; Find preceeding line
- (cperl-backward-to-noncomment p)
- (beginning-of-line)
- (if (<= (point) p)
- (progn ; get indent from the first line
- (goto-char p)
- (skip-chars-forward " \t")
- (if (memq (char-after (point))
- (append "#\n" nil))
- nil ; Can't use intentation of this line...
- (point)))
- (skip-chars-forward " \t")
- (point)))
- prop (parse-partial-sexp p char-after-pos))
- (cond ((not delim)
- (goto-char p) ; beginning of REx etc
- (1- (current-column))) ; End the REx, ignore is-block
- (is-block
- ;; Indent as the level after closing parens
- (goto-char char-after-pos)
- (skip-chars-forward " \t)")
- (setq char-after-pos (point))
- (goto-char is-block)
- (skip-chars-forward " \t)")
- (setq p (parse-partial-sexp (point) char-after-pos))
- (goto-char is-block)
- (+ (* (nth 0 p)
- (or cperl-regexp-indent-step cperl-indent-level))
- (cond ((eq char-after ?\) )
- (- cperl-close-paren-offset)) ; compensate
- ((eq char-after ?\| )
- (- (or cperl-regexp-indent-step cperl-indent-level)))
- (t 0))
- (if (eq (following-char) ?\| )
- (or cperl-regexp-indent-step cperl-indent-level)
- 0)
- (current-column)))
- ;; Now we have no preceeding line...
- (t
- (goto-char p)
- (+ (or cperl-regexp-indent-step cperl-indent-level)
- -1
- (current-column)))))
- ((get-text-property char-after-pos 'REx-part2)
- (condition-case nil ; Use indentation of the 1st part
- (forward-sexp -1))
- (current-column))
- ((or (nth 3 state) (nth 4 state))
- ;; return nil or t if should not change this line
- (nth 4 state))
- ;; XXXX Do we need to special-case this?
- ((null containing-sexp)
- ;; Line is at top level. May be data or function definition,
- ;; or may be function argument declaration.
- ;; Indent like the previous top level line
- ;; unless that ends in a closeparen without semicolon,
- ;; in which case this line is the first argument decl.
- (skip-chars-forward " \t")
- (+ (save-excursion
- (goto-char start)
- (- (current-indentation)
- (if (nth 2 s-s) cperl-indent-level 0)))
- (if (eq char-after ?{) cperl-continued-brace-offset 0)
- (progn
- (cperl-backward-to-noncomment (or old-indent (point-min)))
- ;; Look at previous line that's at column 0
- ;; to determine whether we are in top-level decls
- ;; or function's arg decls. Set basic-indent accordingly.
- ;; Now add a little if this is a continuation line.
- (if (or (bobp)
- (eq (point) old-indent) ; old-indent was at comment
- (eq (preceding-char) ?\;)
- ;; Had ?\) too
- (and (eq (preceding-char) ?\})
- (cperl-after-block-and-statement-beg
- (point-min))) ; Was start - too close
- (memq char-after (append ")]}" nil))
- (and (eq (preceding-char) ?\:) ; label
- (progn
- (forward-sexp -1)
- (skip-chars-backward " \t")
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*[ \t]*:")))
- (get-text-property (point) 'first-format-line))
- (progn
- (if (and parse-data
- (not (eq char-after ?\C-j)))
- (setcdr (cddr parse-data)
- (list pre-indent-point)))
- 0)
- cperl-continued-statement-offset))))
- ((not
- (or (setq is-block
- (and (setq delim (= (char-after containing-sexp) ?{))
- (save-excursion ; Is it a hash?
- (goto-char containing-sexp)
- (cperl-block-p))))
- cperl-indent-parens-as-block))
- ;; group is an expression, not a block:
- ;; indent to just after the surrounding open parens,
- ;; skip blanks if we do not close the expression.
- (goto-char (1+ containing-sexp))
- (or (memq char-after
- (append (if delim "}" ")]}") nil))
- (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (+ (current-column)
- (if (and delim
- (eq char-after ?\}))
- ;; Correct indentation of trailing ?\}
- (+ cperl-indent-level cperl-close-paren-offset)
- 0)))
-;;; ((and (/= (char-after containing-sexp) ?{)
-;;; (not cperl-indent-parens-as-block))
-;;; ;; line is expression, not statement:
-;;; ;; indent to just after the surrounding open,
-;;; ;; skip blanks if we do not close the expression.
-;;; (goto-char (1+ containing-sexp))
-;;; (or (memq char-after (append ")]}" nil))
-;;; (looking-at "[ \t]*\\(#\\|$\\)")
-;;; (skip-chars-forward " \t"))
-;;; (current-column))
-;;; ((progn
-;;; ;; Containing-expr starts with \{. Check whether it is a hash.
-;;; (goto-char containing-sexp)
-;;; (and (not (cperl-block-p))
-;;; (not cperl-indent-parens-as-block)))
-;;; (goto-char (1+ containing-sexp))
-;;; (or (eq char-after ?\})
-;;; (looking-at "[ \t]*\\(#\\|$\\)")
-;;; (skip-chars-forward " \t"))
-;;; (+ (current-column) ; Correct indentation of trailing ?\}
-;;; (if (eq char-after ?\}) (+ cperl-indent-level
-;;; cperl-close-paren-offset)
-;;; 0)))
- (t
- ;; Statement level. Is it a continuation or a new statement?
- ;; Find previous non-comment character.
- (goto-char pre-indent-point)
- (cperl-backward-to-noncomment containing-sexp)
- ;; Back up over label lines, since they don't
- ;; affect whether our line is a continuation.
- ;; (Had \, too)
- (while;;(or (eq (preceding-char) ?\,)
- (and (eq (preceding-char) ?:)
- (or;;(eq (char-after (- (point) 2)) ?\') ; ????
- (memq (char-syntax (char-after (- (point) 2)))
- '(?w ?_))))
- ;;)
- (if (eq (preceding-char) ?\,)
- ;; Will go to beginning of line, essentially.
- ;; Will ignore embedded sexpr XXXX.
- (cperl-backward-to-start-of-continued-exp containing-sexp))
- (beginning-of-line)
- (cperl-backward-to-noncomment containing-sexp))
- ;; Now we get the answer.
- (if (not (or (eq (1- (point)) containing-sexp)
- (memq (preceding-char)
- (append (if is-block " ;{" " ,;{") '(nil)))
- (and (eq (preceding-char) ?\})
- (cperl-after-block-and-statement-beg
- containing-sexp))
- (get-text-property (point) 'first-format-line)))
- ;; This line is continuation of preceding line's statement;
- ;; indent `cperl-continued-statement-offset' more than the
- ;; previous line of the statement.
- ;;
- ;; There might be a label on this line, just
- ;; consider it bad style and ignore it.
- (progn
- (cperl-backward-to-start-of-continued-exp containing-sexp)
- (+ (if (memq char-after (append "}])" nil))
- 0 ; Closing parenth
- cperl-continued-statement-offset)
- (if (or is-block
- (not delim)
- (not (eq char-after ?\})))
- 0
- ;; Now it is a hash reference
- (+ cperl-indent-level cperl-close-paren-offset))
- ;; Labels do not take :: ...
- (if (looking-at "\\(\\w\\|_\\)+[ \t]*:")
- (if (> (current-indentation) cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- ;; Do not move `parse-data', this should
- ;; be quick anyway (this comment comes
- ;; from different location):
- (cperl-calculate-indent))
- (current-column))
- (if (eq char-after ?\{)
- cperl-continued-brace-offset 0)))
- ;; This line starts a new statement.
- ;; Position following last unclosed open.
- (goto-char containing-sexp)
- ;; Is line first statement after an open-brace?
- (or
- ;; If no, find that first statement and indent like
- ;; it. If the first statement begins with label, do
- ;; not believe when the indentation of the label is too
- ;; small.
- (save-excursion
- (forward-char 1)
- (setq old-indent (current-indentation))
- (let ((colon-line-end 0))
- (while
- (progn (skip-chars-forward " \t\n")
- (looking-at "#\\|[a-zA-Z0-9_$]*:[^:]\\|=[a-zA-Z]"))
- ;; Skip over comments and labels following openbrace.
- (cond ((= (following-char) ?\#)
- (forward-line 1))
- ((= (following-char) ?\=)
- (goto-char
- (or (next-single-property-change (point) 'in-pod)
- (point-max)))) ; do not loop if no syntaxification
- ;; label:
- (t
- (save-excursion (end-of-line)
- (setq colon-line-end (point)))
- (search-forward ":"))))
- ;; The first following code counts
- ;; if it is before the line we want to indent.
- (and (< (point) indent-point)
- (if (> colon-line-end (point)) ; After label
- (if (> (current-indentation)
- cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- ;; Do not believe: `max' is involved
- (+ old-indent cperl-indent-level))
- (current-column)))))
- ;; If no previous statement,
- ;; indent it relative to line brace is on.
- ;; For open brace in column zero, don't let statement
- ;; start there too. If cperl-indent-level is zero,
- ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
- ;; For open-braces not the first thing in a line,
- ;; add in cperl-brace-imaginary-offset.
-
- ;; If first thing on a line: ?????
- (+ (if (and (bolp) (zerop cperl-indent-level))
- (+ cperl-brace-offset cperl-continued-statement-offset)
- cperl-indent-level)
- (if (or is-block
- (not delim)
- (not (eq char-after ?\})))
- 0
- ;; Now it is a hash reference
- (+ cperl-indent-level cperl-close-paren-offset))
- ;; Move back over whitespace before the openbrace.
- ;; If openbrace is not first nonwhite thing on the line,
- ;; add the cperl-brace-imaginary-offset.
- (progn (skip-chars-backward " \t")
- (if (bolp) 0 cperl-brace-imaginary-offset))
- ;; If the openbrace is preceded by a parenthesized exp,
- ;; move to the beginning of that;
- ;; possibly a different line
- (progn
- (cperl-backward-to-noncomment (point-min))
- (if (eq (preceding-char) ?\))
- (forward-sexp -1))
- ;; In the case it starts a subroutine, indent with
- ;; respect to `sub', not with respect to the
- ;; first thing on the line, say in the case of
- ;; anonymous sub in a hash.
- ;;
- ;;(skip-chars-backward " \t")
- (cperl-backward-to-noncomment (point-min))
- (if (and
- (or
- (and (get-text-property (point) 'attrib-group)
- (goto-char
- (cperl-beginning-of-property
- (point) 'attrib-group)))
- (and (eq (preceding-char) ?b)
- (progn
- (forward-sexp -1)
- (looking-at "sub\\>"))))
- (setq old-indent
- (nth 1
- (parse-partial-sexp
- (save-excursion (beginning-of-line) (point))
- (point)))))
- (progn (goto-char (1+ old-indent))
- (skip-chars-forward " \t")
- (current-column))
- ;; Get initial indentation of the line we are on.
- ;; If line starts with label, calculate label indentation
- (if (save-excursion
- (beginning-of-line)
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
- (if (> (current-indentation) cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- ;; Do not move `parse-data', this should
- ;; be quick anyway:
- (cperl-calculate-indent))
- (current-indentation))))))))))))))
-
-(defvar cperl-indent-alist
- '((string nil)
- (comment nil)
- (toplevel 0)
- (toplevel-after-parenth 2)
- (toplevel-continued 2)
- (expression 1))
- "Alist of indentation rules for CPerl mode.
-The values mean:
- nil: do not indent;
- number: add this amount of indentation.
-
-Not finished, not used.")
-
-(defun cperl-where-am-i (&optional parse-start start-state)
- ;; Unfinished
- "Return a list of lists ((TYPE POS)...) of good points before the point.
-POS may be nil if it is hard to find, say, when TYPE is `string' or `comment'.
-
-Not finished, not used."
- (save-excursion
- (let* ((start-point (point)) unused
- (s-s (cperl-get-state))
- (start (nth 0 s-s))
- (state (nth 1 s-s))
- (prestart (nth 3 s-s))
- (containing-sexp (car (cdr state)))
- (case-fold-search nil)
- (res (list (list 'parse-start start) (list 'parse-prestart prestart))))
- (cond ((nth 3 state) ; In string
- (setq res (cons (list 'string nil (nth 3 state)) res))) ; What started string
- ((nth 4 state) ; In comment
- (setq res (cons '(comment) res)))
- ((null containing-sexp)
- ;; Line is at top level.
- ;; Indent like the previous top level line
- ;; unless that ends in a closeparen without semicolon,
- ;; in which case this line is the first argument decl.
- (cperl-backward-to-noncomment (or parse-start (point-min)))
- ;;(skip-chars-backward " \t\f\n")
- (cond
- ((or (bobp)
- (memq (preceding-char) (append ";}" nil)))
- (setq res (cons (list 'toplevel start) res)))
- ((eq (preceding-char) ?\) )
- (setq res (cons (list 'toplevel-after-parenth start) res)))
- (t
- (setq res (cons (list 'toplevel-continued start) res)))))
- ((/= (char-after containing-sexp) ?{)
- ;; line is expression, not statement:
- ;; indent to just after the surrounding open.
- ;; skip blanks if we do not close the expression.
- (setq res (cons (list 'expression-blanks
- (progn
- (goto-char (1+ containing-sexp))
- (or (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (point)))
- (cons (list 'expression containing-sexp) res))))
- ((progn
- ;; Containing-expr starts with \{. Check whether it is a hash.
- (goto-char containing-sexp)
- (not (cperl-block-p)))
- (setq res (cons (list 'expression-blanks
- (progn
- (goto-char (1+ containing-sexp))
- (or (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (point)))
- (cons (list 'expression containing-sexp) res))))
- (t
- ;; Statement level.
- (setq res (cons (list 'in-block containing-sexp) res))
- ;; Is it a continuation or a new statement?
- ;; Find previous non-comment character.
- (cperl-backward-to-noncomment containing-sexp)
- ;; Back up over label lines, since they don't
- ;; affect whether our line is a continuation.
- ;; Back up comma-delimited lines too ?????
- (while (or (eq (preceding-char) ?\,)
- (save-excursion (cperl-after-label)))
- (if (eq (preceding-char) ?\,)
- ;; Will go to beginning of line, essentially
- ;; Will ignore embedded sexpr XXXX.
- (cperl-backward-to-start-of-continued-exp containing-sexp))
- (beginning-of-line)
- (cperl-backward-to-noncomment containing-sexp))
- ;; Now we get the answer.
- (if (not (memq (preceding-char) (append ";}{" '(nil)))) ; Was ?\,
- ;; This line is continuation of preceding line's statement.
- (list (list 'statement-continued containing-sexp))
- ;; This line starts a new statement.
- ;; Position following last unclosed open.
- (goto-char containing-sexp)
- ;; Is line first statement after an open-brace?
- (or
- ;; If no, find that first statement and indent like
- ;; it. If the first statement begins with label, do
- ;; not believe when the indentation of the label is too
- ;; small.
- (save-excursion
- (forward-char 1)
- (let ((colon-line-end 0))
- (while (progn (skip-chars-forward " \t\n" start-point)
- (and (< (point) start-point)
- (looking-at
- "#\\|[a-zA-Z_][a-zA-Z0-9_]*:[^:]")))
- ;; Skip over comments and labels following openbrace.
- (cond ((= (following-char) ?\#)
- ;;(forward-line 1)
- (end-of-line))
- ;; label:
- (t
- (save-excursion (end-of-line)
- (setq colon-line-end (point)))
- (search-forward ":"))))
- ;; Now at the point, after label, or at start
- ;; of first statement in the block.
- (and (< (point) start-point)
- (if (> colon-line-end (point))
- ;; Before statement after label
- (if (> (current-indentation)
- cperl-min-label-indent)
- (list (list 'label-in-block (point)))
- ;; Do not believe: `max' is involved
- (list
- (list 'label-in-block-min-indent (point))))
- ;; Before statement
- (list 'statement-in-block (point))))))
- ;; If no previous statement,
- ;; indent it relative to line brace is on.
- ;; For open brace in column zero, don't let statement
- ;; start there too. If cperl-indent-level is zero,
- ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
- ;; For open-braces not the first thing in a line,
- ;; add in cperl-brace-imaginary-offset.
-
- ;; If first thing on a line: ?????
- (setq unused ; This is not finished...
- (+ (if (and (bolp) (zerop cperl-indent-level))
- (+ cperl-brace-offset cperl-continued-statement-offset)
- cperl-indent-level)
- ;; Move back over whitespace before the openbrace.
- ;; If openbrace is not first nonwhite thing on the line,
- ;; add the cperl-brace-imaginary-offset.
- (progn (skip-chars-backward " \t")
- (if (bolp) 0 cperl-brace-imaginary-offset))
- ;; If the openbrace is preceded by a parenthesized exp,
- ;; move to the beginning of that;
- ;; possibly a different line
- (progn
- (if (eq (preceding-char) ?\))
- (forward-sexp -1))
- ;; Get initial indentation of the line we are on.
- ;; If line starts with label, calculate label indentation
- (if (save-excursion
- (beginning-of-line)
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
- (if (> (current-indentation) cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- (cperl-calculate-indent))
- (current-indentation)))))))))
- res)))
-
-(defun cperl-calculate-indent-within-comment ()
- "Return the indentation amount for line, assuming that
-the current line is to be regarded as part of a block comment."
- (let (end star-start)
- (save-excursion
- (beginning-of-line)
- (skip-chars-forward " \t")
- (setq end (point))
- (and (= (following-char) ?#)
- (forward-line -1)
- (cperl-to-comment-or-eol)
- (setq end (point)))
- (goto-char end)
- (current-column))))
-
-
-(defun cperl-to-comment-or-eol ()
- "Go to position before comment on the current line, or to end of line.
-Returns true if comment is found. In POD will not move the point."
- ;; If the line is inside other syntax groups (qq-style strings, HERE-docs)
- ;; then looks for literal # or end-of-line.
- (let (state stop-in cpoint (lim (progn (end-of-line) (point))) pr e)
- (or cperl-font-locking
- (cperl-update-syntaxification lim lim))
- (beginning-of-line)
- (if (setq pr (get-text-property (point) 'syntax-type))
- (setq e (next-single-property-change (point) 'syntax-type nil (point-max))))
- (if (or (eq pr 'pod)
- (if (or (not e) (> e lim)) ; deep inside a group
- (re-search-forward "\\=[ \t]*\\(#\\|$\\)" lim t)))
- (if (eq (preceding-char) ?\#) (progn (backward-char 1) t))
- ;; Else - need to do it the hard way
- (and (and e (<= e lim))
- (goto-char e))
- (while (not stop-in)
- (setq state (parse-partial-sexp (point) lim nil nil nil t))
- ; stop at comment
- ;; If fails (beginning-of-line inside sexp), then contains not-comment
- (if (nth 4 state) ; After `#';
- ; (nth 2 state) can be
- ; beginning of m,s,qq and so
- ; on
- (if (nth 2 state)
- (progn
- (setq cpoint (point))
- (goto-char (nth 2 state))
- (cond
- ((looking-at "\\(s\\|tr\\)\\>")
- (or (re-search-forward
- "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*"
- lim 'move)
- (setq stop-in t)))
- ((looking-at "\\(m\\|q\\([qxwr]\\)?\\)\\>")
- (or (re-search-forward
- "\\=\\w+[ \t]*#\\([^\n\\\\#]\\|\\\\[\\\\#]\\)*#"
- lim 'move)
- (setq stop-in t)))
- (t ; It was fair comment
- (setq stop-in t) ; Finish
- (goto-char (1- cpoint)))))
- (setq stop-in t) ; Finish
- (forward-char -1))
- (setq stop-in t))) ; Finish
- (nth 4 state))))
-
-(defsubst cperl-modify-syntax-type (at how)
- (if (< at (point-max))
- (progn
- (put-text-property at (1+ at) 'syntax-table how)
- (put-text-property at (1+ at) 'rear-nonsticky '(syntax-table)))))
-
-(defun cperl-protect-defun-start (s e)
- ;; C code looks for "^\\s(" to skip comment backward in "hard" situations
- (save-excursion
- (goto-char s)
- (while (re-search-forward "^\\s(" e 'to-end)
- (put-text-property (1- (point)) (point) 'syntax-table cperl-st-punct))))
-
-(defun cperl-commentify (bb e string &optional noface)
- (if cperl-use-syntax-table-text-property
- (if (eq noface 'n) ; Only immediate
- nil
- ;; We suppose that e is _after_ the end of construction, as after eol.
- (setq string (if string cperl-st-sfence cperl-st-cfence))
- (if (> bb (- e 2))
- ;; one-char string/comment?!
- (cperl-modify-syntax-type bb cperl-st-punct)
- (cperl-modify-syntax-type bb string)
- (cperl-modify-syntax-type (1- e) string))
- (if (and (eq string cperl-st-sfence) (> (- e 2) bb))
- (put-text-property (1+ bb) (1- e)
- 'syntax-table cperl-string-syntax-table))
- (cperl-protect-defun-start bb e))
- ;; Fontify
- (or noface
- (not cperl-pod-here-fontify)
- (put-text-property bb e 'face (if string 'font-lock-string-face
- 'font-lock-comment-face)))))
-
-(defvar cperl-starters '(( ?\( . ?\) )
- ( ?\[ . ?\] )
- ( ?\{ . ?\} )
- ( ?\< . ?\> )))
-
-(defun cperl-cached-syntax-table (st)
- "Get a syntax table cached in ST, or create and cache into ST a syntax table.
-All the entries of the syntax table are \".\", except for a backslash, which
-is quoting."
- (if (car-safe st)
- (car st)
- (setcar st (make-syntax-table))
- (setq st (car st))
- (let ((i 0))
- (while (< i 256)
- (modify-syntax-entry i "." st)
- (setq i (1+ i))))
- (modify-syntax-entry ?\\ "\\" st)
- st))
-
-(defun cperl-forward-re (lim end is-2arg st-l err-l argument
- &optional ostart oend)
-"Find the end of a regular expression or a stringish construct (q[] etc).
-The point should be before the starting delimiter.
-
-Goes to LIM if none is found. If IS-2ARG is non-nil, assumes that it
-is s/// or tr/// like expression. If END is nil, generates an error
-message if needed. If SET-ST is non-nil, will use (or generate) a
-cached syntax table in ST-L. If ERR-L is non-nil, will store the
-error message in its CAR (unless it already contains some error
-message). ARGUMENT should be the name of the construct (used in error
-messages). OSTART, OEND may be set in recursive calls when processing
-the second argument of 2ARG construct.
-
-Works *before* syntax recognition is done. In IS-2ARG situation may
-modify syntax-type text property if the situation is too hard."
- (let (b starter ender st i i2 go-forward reset-st set-st)
- (skip-chars-forward " \t")
- ;; ender means matching-char matcher.
- (setq b (point)
- starter (if (eobp) 0 (char-after b))
- ender (cdr (assoc starter cperl-starters)))
- ;; What if starter == ?\\ ????
- (setq st (cperl-cached-syntax-table st-l))
- (setq set-st t)
- ;; Whether we have an intermediate point
- (setq i nil)
- ;; Prepare the syntax table:
- (if (not ender) ; m/blah/, s/x//, s/x/y/
- (modify-syntax-entry starter "$" st)
- (modify-syntax-entry starter (concat "(" (list ender)) st)
- (modify-syntax-entry ender (concat ")" (list starter)) st))
- (condition-case bb
- (progn
- ;; We use `$' syntax class to find matching stuff, but $$
- ;; is recognized the same as $, so we need to check this manually.
- (if (and (eq starter (char-after (cperl-1+ b)))
- (not ender))
- ;; $ has TeXish matching rules, so $$ equiv $...
- (forward-char 2)
- (setq reset-st (syntax-table))
- (set-syntax-table st)
- (forward-sexp 1)
- (if (<= (point) (1+ b))
- (error "Unfinished regular expression"))
- (set-syntax-table reset-st)
- (setq reset-st nil)
- ;; Now the problem is with m;blah;;
- (and (not ender)
- (eq (preceding-char)
- (char-after (- (point) 2)))
- (save-excursion
- (forward-char -2)
- (= 0 (% (skip-chars-backward "\\\\") 2)))
- (forward-char -1)))
- ;; Now we are after the first part.
- (and is-2arg ; Have trailing part
- (not ender)
- (eq (following-char) starter) ; Empty trailing part
- (progn
- (or (eq (char-syntax (following-char)) ?.)
- ;; Make trailing letter into punctuation
- (cperl-modify-syntax-type (point) cperl-st-punct))
- (setq is-2arg nil go-forward t))) ; Ignore the tail
- (if is-2arg ; Not number => have second part
- (progn
- (setq i (point) i2 i)
- (if ender
- (if (memq (following-char) '(?\ ?\t ?\n ?\f))
- (progn
- (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
- (goto-char (match-end 0))
- (skip-chars-forward " \t\n\f"))
- (setq i2 (point))))
- (forward-char -1))
- (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
- (if ender (modify-syntax-entry ender "." st))
- (setq set-st nil)
- (setq ender (cperl-forward-re lim end nil st-l err-l
- argument starter ender)
- ender (nth 2 ender)))))
- (error (goto-char lim)
- (setq set-st nil)
- (if reset-st
- (set-syntax-table reset-st))
- (or end
- (message
- "End of `%s%s%c ... %c' string/RE not found: %s"
- argument
- (if ostart (format "%c ... %c" ostart (or oend ostart)) "")
- starter (or ender starter) bb)
- (or (car err-l) (setcar err-l b)))))
- (if set-st
- (progn
- (modify-syntax-entry starter (if (eq starter ?\\) "\\" ".") st)
- (if ender (modify-syntax-entry ender "." st))))
- ;; i: have 2 args, after end of the first arg
- ;; i2: start of the second arg, if any (before delim iff `ender').
- ;; ender: the last arg bounded by parens-like chars, the second one of them
- ;; starter: the starting delimiter of the first arg
- ;; go-forward: has 2 args, and the second part is empty
- (list i i2 ender starter go-forward)))
-
-(defun cperl-forward-group-in-re (&optional st-l)
- "Find the end of a group in a REx.
-Return the error message (if any). Does not work if delimiter is `)'.
-Works before syntax recognition is done."
- ;; Works *before* syntax recognition is done
- (or st-l (setq st-l (list nil))) ; Avoid overwriting '()
- (let (st b reset-st)
- (condition-case b
- (progn
- (setq st (cperl-cached-syntax-table st-l))
- (modify-syntax-entry ?\( "()" st)
- (modify-syntax-entry ?\) ")(" st)
- (setq reset-st (syntax-table))
- (set-syntax-table st)
- (forward-sexp 1))
- (error (message
- "cperl-forward-group-in-re: error %s" b)))
- ;; now restore the initial state
- (if st
- (progn
- (modify-syntax-entry ?\( "." st)
- (modify-syntax-entry ?\) "." st)))
- (if reset-st
- (set-syntax-table reset-st))
- b))
-
-
-(defvar font-lock-string-face)
-;;(defvar font-lock-reference-face)
-(defvar font-lock-constant-face)
-(defsubst cperl-postpone-fontification (b e type val &optional now)
- ;; Do after syntactic fontification?
- (if cperl-syntaxify-by-font-lock
- (or now (put-text-property b e 'cperl-postpone (cons type val)))
- (put-text-property b e type val)))
-
-;;; Here is how the global structures (those which cannot be
-;;; recognized locally) are marked:
-;; a) PODs:
-;; Start-to-end is marked `in-pod' ==> t
-;; Each non-literal part is marked `syntax-type' ==> `pod'
-;; Each literal part is marked `syntax-type' ==> `in-pod'
-;; b) HEREs:
-;; Start-to-end is marked `here-doc-group' ==> t
-;; The body is marked `syntax-type' ==> `here-doc'
-;; The delimiter is marked `syntax-type' ==> `here-doc-delim'
-;; c) FORMATs:
-;; First line (to =) marked `first-format-line' ==> t
-;; After-this--to-end is marked `syntax-type' ==> `format'
-;; d) 'Q'uoted string:
-;; part between markers inclusive is marked `syntax-type' ==> `string'
-;; part between `q' and the first marker is marked `syntax-type' ==> `prestring'
-;; e) Attributes of subroutines: `attrib-group' ==> t
-;; (or 0 if declaration); up to `{' or ';': `syntax-type' => `sub-decl'.
-;; f) Multiline my/our declaration lists etc: `syntax-type' => `multiline'
-
-(defun cperl-unwind-to-safe (before &optional end)
- ;; if BEFORE, go to the previous start-of-line on each step of unwinding
- (let ((pos (point)) opos)
- (while (and pos (progn
- (beginning-of-line)
- (get-text-property (setq pos (point)) 'syntax-type)))
- (setq opos pos
- pos (cperl-beginning-of-property pos 'syntax-type))
- (if (eq pos (point-min))
- (setq pos nil))
- (if pos
- (if before
- (progn
- (goto-char (cperl-1- pos))
- (beginning-of-line)
- (setq pos (point)))
- (goto-char (setq pos (cperl-1- pos))))
- ;; Up to the start
- (goto-char (point-min))))
- ;; Skip empty lines
- (and (looking-at "\n*=")
- (/= 0 (skip-chars-backward "\n"))
- (forward-char))
- (setq pos (point))
- (if end
- ;; Do the same for end, going small steps
- (save-excursion
- (while (and end (get-text-property end 'syntax-type))
- (setq pos end
- end (next-single-property-change end 'syntax-type nil (point-max)))
- (if end (progn (goto-char end)
- (or (bolp) (forward-line 1))
- (setq end (point)))))
- (or end pos)))))
-
-(defvar cperl-nonoverridable-face)
-(defvar font-lock-function-name-face)
-(defvar font-lock-comment-face)
-
-(defun cperl-find-sub-attrs (&optional st-l b-fname e-fname pos)
- "Syntaxically mark (and fontify) attributes of a subroutine.
-Should be called with the point before leading colon of an attribute."
- ;; Works *before* syntax recognition is done
- (or st-l (setq st-l (list nil))) ; Avoid overwriting '()
- (let (st b p reset-st after-first (start (point)) start1 end1)
- (condition-case b
- (while (looking-at
- (concat
- "\\(" ; 1=optional? colon
- ":" cperl-maybe-white-and-comment-rex ; 2=whitespace/comment?
- "\\)"
- (if after-first "?" "")
- ;; No space between name and paren allowed...
- "\\(\\sw+\\)" ; 3=name
- "\\((\\)?")) ; 4=optional paren
- (and (match-beginning 1)
- (cperl-postpone-fontification
- (match-beginning 0) (cperl-1+ (match-beginning 0))
- 'face font-lock-constant-face))
- (setq start1 (match-beginning 3) end1 (match-end 3))
- (cperl-postpone-fontification start1 end1
- 'face font-lock-constant-face)
- (goto-char end1) ; end or before `('
- (if (match-end 4) ; Have attribute arguments...
- (progn
- (if st nil
- (setq st (cperl-cached-syntax-table st-l))
- (modify-syntax-entry ?\( "()" st)
- (modify-syntax-entry ?\) ")(" st))
- (setq reset-st (syntax-table) p (point))
- (set-syntax-table st)
- (forward-sexp 1)
- (set-syntax-table reset-st)
- (setq reset-st nil)
- (cperl-commentify p (point) t))) ; mark as string
- (forward-comment (buffer-size))
- (setq after-first t))
- (error (message
- "L%d: attribute `%s': %s"
- (count-lines (point-min) (point)) (buffer-substring start1 end1) b)
- (setq start nil)))
- (and start
- (progn
- (put-text-property start (point)
- 'attrib-group (if (looking-at "{") t 0))
- (and pos
- (< 1 (count-lines (+ 3 pos) (point))) ; end of `sub'
- ;; Apparently, we do not need `multiline': faces added now
- (put-text-property (+ 3 pos) (cperl-1+ (point))
- 'syntax-type 'sub-decl))
- (and b-fname ; Fontify here: the following condition
- (cperl-postpone-fontification ; is too hard to determine by
- b-fname e-fname 'face ; a REx, so do it here
- (if (looking-at "{")
- font-lock-function-name-face
- font-lock-variable-name-face)))))
- ;; now restore the initial state
- (if st
- (progn
- (modify-syntax-entry ?\( "." st)
- (modify-syntax-entry ?\) "." st)))
- (if reset-st
- (set-syntax-table reset-st))))
-
-(defsubst cperl-look-at-leading-count (is-x-REx e)
- (if (re-search-forward (concat "\\=" (if is-x-REx "[ \t\n]*" "") "[{?+*]")
- (1- e) t) ; return nil on failure, no moving
- (if (eq ?\{ (preceding-char)) nil
- (cperl-postpone-fontification
- (1- (point)) (point)
- 'face font-lock-function-name-face))))
-
-;;; Debugging this may require (setq max-specpdl-size 2000)...
-(defun cperl-find-pods-heres (&optional min max non-inter end ignore-max end-of-here-doc)
- "Scans the buffer for hard-to-parse Perl constructions.
-If `cperl-pod-here-fontify' is not-nil after evaluation, will fontify
-the sections using `cperl-pod-head-face', `cperl-pod-face',
-`cperl-here-face'."
- (interactive)
- (or min (setq min (point-min)
- cperl-syntax-state nil
- cperl-syntax-done-to min))
- (or max (setq max (point-max)))
- (let* ((cperl-pod-here-fontify (eval cperl-pod-here-fontify)) go tmpend
- face head-face here-face b e bb tag qtag b1 e1 argument i c tail tb
- is-REx is-x-REx REx-subgr-start REx-subgr-end was-subgr i2 hairy-RE
- (case-fold-search nil) (inhibit-read-only t) (buffer-undo-list t)
- (modified (buffer-modified-p)) overshoot
- (after-change-functions nil)
- (cperl-font-locking t)
- (use-syntax-state (and cperl-syntax-state
- (>= min (car cperl-syntax-state))))
- (state-point (if use-syntax-state
- (car cperl-syntax-state)
- (point-min)))
- (state (if use-syntax-state
- (cdr cperl-syntax-state)))
- ;; (st-l '(nil)) (err-l '(nil)) ; Would overwrite - propagates from a function call to a function call!
- (st-l (list nil)) (err-l (list nil))
- ;; Somehow font-lock may be not loaded yet...
- (font-lock-string-face (if (boundp 'font-lock-string-face)
- font-lock-string-face
- 'font-lock-string-face))
- (font-lock-constant-face (if (boundp 'font-lock-constant-face)
- font-lock-constant-face
- 'font-lock-constant-face))
- (font-lock-function-name-face
- (if (boundp 'font-lock-function-name-face)
- font-lock-function-name-face
- 'font-lock-function-name-face))
- (font-lock-comment-face
- (if (boundp 'font-lock-comment-face)
- font-lock-comment-face
- 'font-lock-comment-face))
- (cperl-nonoverridable-face
- (if (boundp 'cperl-nonoverridable-face)
- cperl-nonoverridable-face
- 'cperl-nonoverridable-face))
- (stop-point (if ignore-max
- (point-max)
- max))
- (search
- (concat
- "\\(\\`\n?\\|^\n\\)=" ; POD
- "\\|"
- ;; One extra () before this:
- "<<" ; HERE-DOC
- "\\(" ; 1 + 1
- ;; First variant "BLAH" or just ``.
- "[ \t]*" ; Yes, whitespace is allowed!
- "\\([\"'`]\\)" ; 2 + 1 = 3
- "\\([^\"'`\n]*\\)" ; 3 + 1
- "\\3"
- "\\|"
- ;; Second variant: Identifier or \ID (same as 'ID') or empty
- "\\\\?\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)" ; 4 + 1, 5 + 1
- ;; Do not have <<= or << 30 or <<30 or << $blah.
- ;; "\\([^= \t0-9$@%&]\\|[ \t]+[^ \t\n0-9$@%&]\\)" ; 6 + 1
- "\\(\\)" ; To preserve count of pars :-( 6 + 1
- "\\)"
- "\\|"
- ;; 1+6 extra () before this:
- "^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$" ;FRMAT
- (if cperl-use-syntax-table-text-property
- (concat
- "\\|"
- ;; 1+6+2=9 extra () before this:
- "\\<\\(q[wxqr]?\\|[msy]\\|tr\\)\\>" ; QUOTED CONSTRUCT
- "\\|"
- ;; 1+6+2+1=10 extra () before this:
- "\\([?/<]\\)" ; /blah/ or ?blah? or <file*glob>
- "\\|"
- ;; 1+6+2+1+1=11 extra () before this
- "\\<sub\\>" ; sub with proto/attr
- "\\("
- cperl-white-and-comment-rex
- "\\(::[a-zA-Z_:'0-9]*\\|[a-zA-Z_'][a-zA-Z_:'0-9]*\\)\\)?" ; name
- "\\("
- cperl-maybe-white-and-comment-rex
- "\\(([^()]*)\\|:[^:]\\)\\)" ; prototype or attribute start
- "\\|"
- ;; 1+6+2+1+1+6=17 extra () before this:
- "\\$\\(['{]\\)" ; $' or ${foo}
- "\\|"
- ;; 1+6+2+1+1+6+1=18 extra () before this (old pack'var syntax;
- ;; we do not support intervening comments...):
- "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'"
- ;; 1+6+2+1+1+6+1+1=19 extra () before this:
- "\\|"
- "__\\(END\\|DATA\\)__" ; __END__ or __DATA__
- ;; 1+6+2+1+1+6+1+1+1=20 extra () before this:
- "\\|"
- "\\\\\\(['`\"($]\\)") ; BACKWACKED something-hairy
- ""))))
- (unwind-protect
- (progn
- (save-excursion
- (or non-inter
- (message "Scanning for \"hard\" Perl constructions..."))
- ;;(message "find: %s --> %s" min max)
- (and cperl-pod-here-fontify
- ;; We had evals here, do not know why...
- (setq face cperl-pod-face
- head-face cperl-pod-head-face
- here-face cperl-here-face))
- (remove-text-properties min max
- '(syntax-type t in-pod t syntax-table t
- attrib-group t
- cperl-postpone t
- syntax-subtype t
- rear-nonsticky t
- front-sticky t
- here-doc-group t
- first-format-line t
- REx-part2 t
- indentable t))
- ;; Need to remove face as well...
- (goto-char min)
- (and (eq system-type 'emx)
- (eq (point) 1)
- (let ((case-fold-search t))
- (looking-at "extproc[ \t]")) ; Analogue of #!
- (cperl-commentify min
- (save-excursion (end-of-line) (point))
- nil))
- (while (and
- (< (point) max)
- (re-search-forward search max t))
- (setq tmpend nil) ; Valid for most cases
- (setq b (match-beginning 0)
- state (save-excursion (parse-partial-sexp
- state-point b nil nil state))
- state-point b)
- (cond
- ;; 1+6+2+1+1+6=17 extra () before this:
- ;; "\\$\\(['{]\\)"
- ((match-beginning 18) ; $' or ${foo}
- (if (eq (preceding-char) ?\') ; $'
- (progn
- (setq b (1- (point))
- state (parse-partial-sexp
- state-point (1- b) nil nil state)
- state-point (1- b))
- (if (nth 3 state) ; in string
- (cperl-modify-syntax-type (1- b) cperl-st-punct))
- (goto-char (1+ b)))
- ;; else: ${
- (setq bb (match-beginning 0))
- (cperl-modify-syntax-type bb cperl-st-punct)))
- ;; No processing in strings/comments beyond this point:
- ((or (nth 3 state) (nth 4 state))
- t) ; Do nothing in comment/string
- ((match-beginning 1) ; POD section
- ;; "\\(\\`\n?\\|^\n\\)="
- (setq b (match-beginning 0)
- state (parse-partial-sexp
- state-point b nil nil state)
- state-point b)
- (if (or (nth 3 state) (nth 4 state)
- (looking-at "cut\\>"))
- (if (or (nth 3 state) (nth 4 state) ignore-max)
- nil ; Doing a chunk only
- (message "=cut is not preceded by a POD section")
- (or (car err-l) (setcar err-l (point))))
- (beginning-of-line)
-
- (setq b (point)
- bb b
- tb (match-beginning 0)
- b1 nil) ; error condition
- ;; We do not search to max, since we may be called from
- ;; some hook of fontification, and max is random
- (or (re-search-forward "^\n=cut\\>" stop-point 'toend)
- (progn
- (goto-char b)
- (if (re-search-forward "\n=cut\\>" stop-point 'toend)
- (progn
- (message "=cut is not preceded by an empty line")
- (setq b1 t)
- (or (car err-l) (setcar err-l b))))))
- (beginning-of-line 2) ; An empty line after =cut is not POD!
- (setq e (point))
- (and (> e max)
- (progn
- (remove-text-properties
- max e '(syntax-type t in-pod t syntax-table t
- attrib-group t
- cperl-postpone t
- syntax-subtype t
- here-doc-group t
- rear-nonsticky t
- front-sticky t
- first-format-line t
- REx-part2 t
- indentable t))
- (setq tmpend tb)))
- (put-text-property b e 'in-pod t)
- (put-text-property b e 'syntax-type 'in-pod)
- (goto-char b)
- (while (re-search-forward "\n\n[ \t]" e t)
- ;; We start 'pod 1 char earlier to include the preceding line
- (beginning-of-line)
- (put-text-property (cperl-1- b) (point) 'syntax-type 'pod)
- (cperl-put-do-not-fontify b (point) t)
- ;; mark the non-literal parts as PODs
- (if cperl-pod-here-fontify
- (cperl-postpone-fontification b (point) 'face face t))
- (re-search-forward "\n\n[^ \t\f\n]" e 'toend)
- (beginning-of-line)
- (setq b (point)))
- (put-text-property (cperl-1- (point)) e 'syntax-type 'pod)
- (cperl-put-do-not-fontify (point) e t)
- (if cperl-pod-here-fontify
- (progn
- ;; mark the non-literal parts as PODs
- (cperl-postpone-fontification (point) e 'face face t)
- (goto-char bb)
- (if (looking-at
- "=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$")
- ;; mark the headers
- (cperl-postpone-fontification
- (match-beginning 1) (match-end 1)
- 'face head-face))
- (while (re-search-forward
- ;; One paragraph
- "^\n=[a-zA-Z0-9_]+\\>[ \t]*\\(\\(\n?[^\n]\\)+\\)$"
- e 'toend)
- ;; mark the headers
- (cperl-postpone-fontification
- (match-beginning 1) (match-end 1)
- 'face head-face))))
- (cperl-commentify bb e nil)
- (goto-char e)
- (or (eq e (point-max))
- (forward-char -1)))) ; Prepare for immediate POD start.
- ;; Here document
- ;; We can do many here-per-line;
- ;; but multiline quote on the same line as <<HERE confuses us...
- ;; ;; One extra () before this:
- ;;"<<"
- ;; "\\(" ; 1 + 1
- ;; ;; First variant "BLAH" or just ``.
- ;; "[ \t]*" ; Yes, whitespace is allowed!
- ;; "\\([\"'`]\\)" ; 2 + 1
- ;; "\\([^\"'`\n]*\\)" ; 3 + 1
- ;; "\\3"
- ;; "\\|"
- ;; ;; Second variant: Identifier or \ID or empty
- ;; "\\\\?\\(\\([a-zA-Z_][a-zA-Z_0-9]*\\)?\\)" ; 4 + 1, 5 + 1
- ;; ;; Do not have <<= or << 30 or <<30 or << $blah.
- ;; ;; "\\([^= \t0-9$@%&]\\|[ \t]+[^ \t\n0-9$@%&]\\)" ; 6 + 1
- ;; "\\(\\)" ; To preserve count of pars :-( 6 + 1
- ;; "\\)"
- ((match-beginning 2) ; 1 + 1
- (setq b (point)
- tb (match-beginning 0)
- c (and ; not HERE-DOC
- (match-beginning 5)
- (save-match-data
- (or (looking-at "[ \t]*(") ; << function_call()
- (save-excursion ; 1 << func_name, or $foo << 10
- (condition-case nil
- (progn
- (goto-char tb)
- ;;; XXX What to do: foo <<bar ???
- ;;; XXX Need to support print {a} <<B ???
- (forward-sexp -1)
- (save-match-data
- ; $foo << b; $f .= <<B;
- ; ($f+1) << b; a($f) . <<B;
- ; foo 1, <<B; $x{a} <<b;
- (cond
- ((looking-at "[0-9$({]")
- (forward-sexp 1)
- (looking-at "[ \t]*<<")))))
- (error nil))) ; func(<<EOF)
- (and (not (match-beginning 6)) ; Empty
- (looking-at
- "[ \t]*[=0-9$@%&(]"))))))
- (if c ; Not here-doc
- nil ; Skip it.
- (setq c (match-end 2)) ; 1 + 1
- (if (match-beginning 5) ;4 + 1
- (setq b1 (match-beginning 5) ; 4 + 1
- e1 (match-end 5)) ; 4 + 1
- (setq b1 (match-beginning 4) ; 3 + 1
- e1 (match-end 4))) ; 3 + 1
- (setq tag (buffer-substring b1 e1)
- qtag (regexp-quote tag))
- (cond (cperl-pod-here-fontify
- ;; Highlight the starting delimiter
- (cperl-postpone-fontification b1 e1 'face font-lock-constant-face)
- (cperl-put-do-not-fontify b1 e1 t)))
- (forward-line)
- (setq i (point))
- (if end-of-here-doc
- (goto-char end-of-here-doc))
- (setq b (point))
- ;; We do not search to max, since we may be called from
- ;; some hook of fontification, and max is random
- (or (and (re-search-forward (concat "^" qtag "$")
- stop-point 'toend)
- (eq (following-char) ?\n))
- (progn ; Pretend we matched at the end
- (goto-char (point-max))
- (re-search-forward "\\'")
- (message "End of here-document `%s' not found." tag)
- (or (car err-l) (setcar err-l b))))
- (if cperl-pod-here-fontify
- (progn
- ;; Highlight the ending delimiter
- (cperl-postpone-fontification (match-beginning 0) (match-end 0)
- 'face font-lock-constant-face)
- (cperl-put-do-not-fontify b (match-end 0) t)
- ;; Highlight the HERE-DOC
- (cperl-postpone-fontification b (match-beginning 0)
- 'face here-face)))
- (setq e1 (cperl-1+ (match-end 0)))
- (put-text-property b (match-beginning 0)
- 'syntax-type 'here-doc)
- (put-text-property (match-beginning 0) e1
- 'syntax-type 'here-doc-delim)
- (put-text-property b e1 'here-doc-group t)
- ;; This makes insertion at the start of HERE-DOC update
- ;; the whole construct:
- (put-text-property b (cperl-1+ b) 'front-sticky '(syntax-type))
- (cperl-commentify b e1 nil)
- (cperl-put-do-not-fontify b (match-end 0) t)
- ;; Cache the syntax info...
- (setq cperl-syntax-state (cons state-point state))
- ;; ... and process the rest of the line...
- (setq overshoot
- (elt ; non-inter ignore-max
- (cperl-find-pods-heres c i t end t e1) 1))
- (if (and overshoot (> overshoot (point)))
- (goto-char overshoot)
- (setq overshoot e1))
- (if (> e1 max)
- (setq tmpend tb))))
- ;; format
- ((match-beginning 8)
- ;; 1+6=7 extra () before this:
- ;;"^[ \t]*\\(format\\)[ \t]*\\([a-zA-Z0-9_]+\\)?[ \t]*=[ \t]*$"
- (setq b (point)
- name (if (match-beginning 8) ; 7 + 1
- (buffer-substring (match-beginning 8) ; 7 + 1
- (match-end 8)) ; 7 + 1
- "")
- tb (match-beginning 0))
- (setq argument nil)
- (put-text-property (save-excursion
- (beginning-of-line)
- (point))
- b 'first-format-line 't)
- (if cperl-pod-here-fontify
- (while (and (eq (forward-line) 0)
- (not (looking-at "^[.;]$")))
- (cond
- ((looking-at "^#")) ; Skip comments
- ((and argument ; Skip argument multi-lines
- (looking-at "^[ \t]*{"))
- (forward-sexp 1)
- (setq argument nil))
- (argument ; Skip argument lines
- (setq argument nil))
- (t ; Format line
- (setq b1 (point))
- (setq argument (looking-at "^[^\n]*[@^]"))
- (end-of-line)
- ;; Highlight the format line
- (cperl-postpone-fontification b1 (point)
- 'face font-lock-string-face)
- (cperl-commentify b1 (point) nil)
- (cperl-put-do-not-fontify b1 (point) t))))
- ;; We do not search to max, since we may be called from
- ;; some hook of fontification, and max is random
- (re-search-forward "^[.;]$" stop-point 'toend))
- (beginning-of-line)
- (if (looking-at "^\\.$") ; ";" is not supported yet
- (progn
- ;; Highlight the ending delimiter
- (cperl-postpone-fontification (point) (+ (point) 2)
- 'face font-lock-string-face)
- (cperl-commentify (point) (+ (point) 2) nil)
- (cperl-put-do-not-fontify (point) (+ (point) 2) t))
- (message "End of format `%s' not found." name)
- (or (car err-l) (setcar err-l b)))
- (forward-line)
- (if (> (point) max)
- (setq tmpend tb))
- (put-text-property b (point) 'syntax-type 'format))
- ;; qq-like String or Regexp:
- ((or (match-beginning 10) (match-beginning 11))
- ;; 1+6+2=9 extra () before this:
- ;; "\\<\\(q[wxqr]?\\|[msy]\\|tr\\)\\>"
- ;; "\\|"
- ;; "\\([?/<]\\)" ; /blah/ or ?blah? or <file*glob>
- (setq b1 (if (match-beginning 10) 10 11)
- argument (buffer-substring
- (match-beginning b1) (match-end b1))
- b (point) ; end of qq etc
- i b
- c (char-after (match-beginning b1))
- bb (char-after (1- (match-beginning b1))) ; tmp holder
- ;; bb == "Not a stringy"
- bb (if (eq b1 10) ; user variables/whatever
- (and (memq bb (append "$@%*#_:-&>" nil)) ; $#y)
- (cond ((eq bb ?-) (eq c ?s)) ; -s file test
- ((eq bb ?\:) ; $opt::s
- (eq (char-after
- (- (match-beginning b1) 2))
- ?\:))
- ((eq bb ?\>) ; $foo->s
- (eq (char-after
- (- (match-beginning b1) 2))
- ?\-))
- ((eq bb ?\&)
- (not (eq (char-after ; &&m/blah/
- (- (match-beginning b1) 2))
- ?\&)))
- (t t)))
- ;; <file> or <$file>
- (and (eq c ?\<)
- ;; Do not stringify <FH>, <$fh> :
- (save-match-data
- (looking-at
- "\\$?\\([_a-zA-Z:][_a-zA-Z0-9:]*\\)?>"))))
- tb (match-beginning 0))
- (goto-char (match-beginning b1))
- (cperl-backward-to-noncomment (point-min))
- (or bb
- (if (eq b1 11) ; bare /blah/ or ?blah? or <foo>
- (setq argument ""
- b1 nil
- bb ; Not a regexp?
- (not
- ;; What is below: regexp-p?
- (and
- (or (memq (preceding-char)
- (append (if (memq c '(?\? ?\<))
- ;; $a++ ? 1 : 2
- "~{(=|&*!,;:["
- "~{(=|&+-*!,;:[") nil))
- (and (eq (preceding-char) ?\})
- (cperl-after-block-p (point-min)))
- (and (eq (char-syntax (preceding-char)) ?w)
- (progn
- (forward-sexp -1)
-;;; After these keywords `/' starts a RE. One should add all the
-;;; functions/builtins which expect an argument, but ...
- (if (eq (preceding-char) ?-)
- ;; -d ?foo? is a RE
- (looking-at "[a-zA-Z]\\>")
- (and
- (not (memq (preceding-char)
- '(?$ ?@ ?& ?%)))
- (looking-at
- "\\(while\\|if\\|unless\\|until\\|and\\|or\\|not\\|xor\\|split\\|grep\\|map\\|print\\)\\>")))))
- (and (eq (preceding-char) ?.)
- (eq (char-after (- (point) 2)) ?.))
- (bobp))
- ;; m|blah| ? foo : bar;
- (not
- (and (eq c ?\?)
- cperl-use-syntax-table-text-property
- (not (bobp))
- (progn
- (forward-char -1)
- (looking-at "\\s|"))))))
- b (1- b))
- ;; s y tr m
- ;; Check for $a -> y
- (setq b1 (preceding-char)
- go (point))
- (if (and (eq b1 ?>)
- (eq (char-after (- go 2)) ?-))
- ;; Not a regexp
- (setq bb t))))
- (or bb
- (progn
- (goto-char b)
- (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
- (goto-char (match-end 0))
- (skip-chars-forward " \t\n\f"))
- (cond ((and (eq (following-char) ?\})
- (eq b1 ?\{))
- ;; Check for $a[23]->{ s }, @{s} and *{s::foo}
- (goto-char (1- go))
- (skip-chars-backward " \t\n\f")
- (if (memq (preceding-char) (append "$@%&*" nil))
- (setq bb t) ; @{y}
- (condition-case nil
- (forward-sexp -1)
- (error nil)))
- (if (or bb
- (looking-at ; $foo -> {s}
- "[$@]\\$*\\([a-zA-Z0-9_:]+\\|[^{]\\)\\([ \t\n]*->\\)?[ \t\n]*{")
- (and ; $foo[12] -> {s}
- (memq (following-char) '(?\{ ?\[))
- (progn
- (forward-sexp 1)
- (looking-at "\\([ \t\n]*->\\)?[ \t\n]*{"))))
- (setq bb t)
- (goto-char b)))
- ((and (eq (following-char) ?=)
- (eq (char-after (1+ (point))) ?\>))
- ;; Check for { foo => 1, s => 2 }
- ;; Apparently s=> is never a substitution...
- (setq bb t))
- ((and (eq (following-char) ?:)
- (eq b1 ?\{) ; Check for $ { s::bar }
- (looking-at "::[a-zA-Z0-9_:]*[ \t\n\f]*}")
- (progn
- (goto-char (1- go))
- (skip-chars-backward " \t\n\f")
- (memq (preceding-char)
- (append "$@%&*" nil))))
- (setq bb t))
- ((eobp)
- (setq bb t)))))
- (if bb
- (goto-char i)
- ;; Skip whitespace and comments...
- (if (looking-at "[ \t\n\f]+\\(#[^\n]*\n[ \t\n\f]*\\)+")
- (goto-char (match-end 0))
- (skip-chars-forward " \t\n\f"))
- (if (> (point) b)
- (put-text-property b (point) 'syntax-type 'prestring))
- ;; qtag means two-arg matcher, may be reset to
- ;; 2 or 3 later if some special quoting is needed.
- ;; e1 means matching-char matcher.
- (setq b (point) ; before the first delimiter
- ;; has 2 args
- i2 (string-match "^\\([sy]\\|tr\\)$" argument)
- ;; We do not search to max, since we may be called from
- ;; some hook of fontification, and max is random
- i (cperl-forward-re stop-point end
- i2
- st-l err-l argument)
- ;; If `go', then it is considered as 1-arg, `b1' is nil
- ;; as in s/foo//x; the point is before final "slash"
- b1 (nth 1 i) ; start of the second part
- tag (nth 2 i) ; ender-char, true if second part
- ; is with matching chars []
- go (nth 4 i) ; There is a 1-char part after the end
- i (car i) ; intermediate point
- e1 (point) ; end
- ;; Before end of the second part if non-matching: ///
- tail (if (and i (not tag))
- (1- e1))
- e (if i i e1) ; end of the first part
- qtag nil ; need to preserve backslashitis
- is-x-REx nil) ; REx has //x modifier
- ;; If s{} (), then b/b1 are at "{", "(", e1/i after ")", "}"
- ;; Commenting \\ is dangerous, what about ( ?
- (and i tail
- (eq (char-after i) ?\\)
- (setq qtag t))
- (and (if go (looking-at ".\\sw*x")
- (looking-at "\\sw*x")) ; qr//x
- (setq is-x-REx t))
- (if (null i)
- ;; Considered as 1arg form
- (progn
- (cperl-commentify b (point) t)
- (put-text-property b (point) 'syntax-type 'string)
- (if (or is-x-REx
- ;; ignore other text properties:
- (string-match "^qw$" argument))
- (put-text-property b (point) 'indentable t))
- (and go
- (setq e1 (cperl-1+ e1))
- (or (eobp)
- (forward-char 1))))
- (cperl-commentify b i t)
- (if (looking-at "\\sw*e") ; s///e
- (progn
- ;; Cache the syntax info...
- (setq cperl-syntax-state (cons state-point state))
- (and
- ;; silent:
- (car (cperl-find-pods-heres b1 (1- (point)) t end))
- ;; Error
- (goto-char (1+ max)))
- (if (and tag (eq (preceding-char) ?\>))
- (progn
- (cperl-modify-syntax-type (1- (point)) cperl-st-ket)
- (cperl-modify-syntax-type i cperl-st-bra)))
- (put-text-property b i 'syntax-type 'string)
- (if is-x-REx
- (put-text-property b i 'indentable t)))
- (cperl-commentify b1 (point) t)
- (put-text-property b (point) 'syntax-type 'string)
- (if is-x-REx
- (put-text-property b i 'indentable t))
- (if qtag
- (cperl-modify-syntax-type (1+ i) cperl-st-punct))
- (setq tail nil)))
- ;; Now: tail: if the second part is non-matching without ///e
- (if (eq (char-syntax (following-char)) ?w)
- (progn
- (forward-word 1) ; skip modifiers s///s
- (if tail (cperl-commentify tail (point) t))
- (cperl-postpone-fontification
- e1 (point) 'face 'cperl-nonoverridable-face)))
- ;; Check whether it is m// which means "previous match"
- ;; and highlight differently
- (setq is-REx
- (and (string-match "^\\([sm]?\\|qr\\)$" argument)
- (or (not (= (length argument) 0))
- (not (eq c ?\<)))))
- (if (and is-REx
- (eq e (+ 2 b))
- ;; split // *is* using zero-pattern
- (save-excursion
- (condition-case nil
- (progn
- (goto-char tb)
- (forward-sexp -1)
- (not (looking-at "split\\>")))
- (error t))))
- (cperl-postpone-fontification
- b e 'face font-lock-function-name-face)
- (if (or i2 ; Has 2 args
- (and cperl-fontify-m-as-s
- (or
- (string-match "^\\(m\\|qr\\)$" argument)
- (and (eq 0 (length argument))
- (not (eq ?\< (char-after b)))))))
- (progn
- (cperl-postpone-fontification
- b (cperl-1+ b) 'face font-lock-constant-face)
- (cperl-postpone-fontification
- (1- e) e 'face font-lock-constant-face)))
- (if (and is-REx cperl-regexp-scan)
- ;; Process RExen: embedded comments, charclasses and ]
- (save-excursion
- (goto-char (1+ b))
- ;; First
- (cperl-look-at-leading-count is-x-REx e)
- (setq hairy-RE
- (concat
- (if is-x-REx
- (if (eq (char-after b) ?\#)
- "\\((\\?\\\\#\\)\\|\\(\\\\#\\)"
- "\\((\\?#\\)\\|\\(#\\)")
- ;; keep the same count: add a fake group
- (if (eq (char-after b) ?\#)
- "\\((\\?\\\\#\\)\\(\\)"
- "\\((\\?#\\)\\(\\)"))
- "\\|"
- "\\(\\[\\)" ; 3=[
- "\\|"
- "\\(]\\)" ; 4=]
- "\\|" ; 5=builtin 0-length, 6
- ;; XXXX: what if u is delim?
- "\\("
- "[)^$|]"
- "\\|"
- "[*?+]" ; Do not need \?? !
- "\\|"
- "{[0-9]+}"
- "\\|"
- "{[0-9]+,[0-9]*}"
- "\\|"
- "\\\\[luLUEQbBAzZG]"
- "\\|"
- "("
- "\\("
- "\\?[:=!>]"
- "\\|"
- "\\?[-imsx]+[:)]" ; (?i) (?-s:.)
- "\\|"
- "\\?([0-9]+)" ; (?(1)foo|bar)
- "\\|"
- "\\?<[=!]"
- "\\|"
- "\\?" ; (?(?=foo)bar|baz)
- "\\)?"
- "\\)"
- ;; XXXX Need {5,6}?
- "\\|"
- "\\\\\\(.\\)" ; 7=\SYMBOL
- ;; XXXX Will not be able to use it in s)))
- (if (eq (char-after b) ?\) ) ""
- (concat
- "\\|"
- (if (eq (char-after b) ?? ) ; 8 = (?{
- "\\((\\\\\\?\\(\\\\\\?\\)?{\\)"
- "\\((\\?\\(\\?\\)?{\\)"))))) ; 8 = opt ?
- (while
- (and (< (point) (1- e))
- (re-search-forward hairy-RE (1- e) 'to-end))
- (goto-char (match-beginning 0))
- (setq REx-subgr-start (point)
- was-subgr t)
- (if (save-excursion
- (and
- nil ; Not needed now, when we skip \SYMBOL
- (/= (1+ b) (point)) ; \ may be delim
- (eq (preceding-char) ?\\)
- (= (% (skip-chars-backward "\\\\") 2)
- (if (and (eq (char-after b) ?\#)
- (eq (following-char) ?\#))
- 0
- -1))))
- ;; Not a subgr, avoid loop:
- (progn (setq was-subgr nil)
- (forward-char 1))
- (cond
- ((match-beginning 5) ; 0-length builtins
- (setq was-subgr nil) ; We do stuff here
- (goto-char (match-end 5))
- (if (>= (point) e)
- (goto-char (1- e)))
- (cperl-postpone-fontification
- (match-beginning 5) (point)
- 'face font-lock-variable-name-face)
- (if (and (memq (string-to-char (match-string 5))
- (append "(|" nil))
- (not (string-match "(\?[-imsx]+)"
- (match-string 5))))
- (cperl-look-at-leading-count is-x-REx e)))
- ((match-beginning 7) ; \SYMBOL
- (forward-char 2)
- (if (>= (point) e)
- (goto-char (1- e))
- ;; 0-len special-alnums in other branch =>
- ;; Generic: \non-alnum (1), \alnum NO
- ;; Is-delim: \non-alnum (1/spec-2) alnum-1 (=what hai)
- ;; How many chars to not highlight
- (setq was-subgr (if (eq (char-after b)
- (string-to-char
- (match-string 7)))
- (if (string-match
- "[][)^$|*?+]"
- (match-string 7))
- 0
- 1)
- (if (string-match
- "[a-zA-Z0-9]"
- (match-string 7))
- nil
- 1)))
- (if was-subgr
- (cperl-postpone-fontification
- (- (point) 2) (- (point) was-subgr)
- 'face font-lock-variable-name-face)))
- (setq was-subgr nil)) ; We do stuff here
- ((match-beginning 3) ; [charclass]
- ;; Mismatch for /$patterns->[1]/
- (forward-char 1)
- (setq qtag 0) ; leaders
- (if (eq (char-after b) ?^ )
- (and (eq (following-char) ?\\ )
- (eq (char-after (cperl-1+ (point)))
- ?^ )
- (forward-char 2))
- (and (eq (following-char) ?^ )
- (forward-char 1)))
- (setq argument b ; continue?
- tag nil ; list of POSIX classes
- qtag (point))
- (if (eq (char-after b) ?\] )
- (and (eq (following-char) ?\\ )
- (eq (char-after (cperl-1+ (point)))
- ?\] )
- (setq qtag (1+ qtag))
- (forward-char 2))
- (and (eq (following-char) ?\] )
- (forward-char 1)))
- ;; Apparently, I can't put \] into a charclass
- ;; in m]]: m][\\\]\]] produces [\\]]
-;;; POSIX? [:word:] [:^word:] only inside []
-;;; "\\=\\(\\\\.\\|[^][\\\\]\\|\\[:\\^?\sw+:]\\|\\[[^:]\\)*]")
- (while
- (and argument
- (re-search-forward
- (if (eq (char-after b) ?\] )
- "\\=\\(\\\\[^]]\\|[^]\\\\]\\)*\\\\]"
- "\\=\\(\\\\.\\|[^]\\\\]\\)*]")
- (1- e) 'toend))
- ;; Is this ] the end of POSIX class?
- (if (save-excursion
- (and
- (search-backward "[" argument t)
- (< REx-subgr-start (point))
- (not
- (and ; Should work with delim = \
- (eq (preceding-char) ?\\ )
- (= (% (skip-chars-backward
- "\\\\") 2) 0)))
- (looking-at
- (cond
- ((eq (char-after b) ?\] )
- "\\\\*\\[:\\^?\\sw+:\\\\\\]")
- ((eq (char-after b) ?\: )
- "\\\\*\\[\\\\:\\^?\\sw+\\\\:]")
- ((eq (char-after b) ?^ )
- "\\\\*\\[:\\(\\\\\\^\\)?\\sw+:\]")
- ((eq (char-syntax (char-after b))
- ?w)
- (concat
- "\\\\*\\[:\\(\\\\\\^\\)?\\(\\\\"
- (char-to-string (char-after b))
- "\\|\\sw\\)+:\]"))
- (t "\\\\*\\[:\\^?\\sw*:]")))
- (setq argument (point))))
- (setq tag (cons (cons argument (point))
- tag)
- argument (point)) ; continue
- (setq argument nil)))
- (and argument
- (message "Couldn't find end of charclass in a REx, pos=%s"
- REx-subgr-start))
- (if (and cperl-use-syntax-table-text-property
- (> (- (point) 2) REx-subgr-start))
- (put-text-property
- (1+ REx-subgr-start) (1- (point))
- 'syntax-table cperl-st-punct))
- (cperl-postpone-fontification
- REx-subgr-start qtag
- 'face font-lock-variable-name-face)
- (cperl-postpone-fontification
- (if (eq (char-after b) ?\] )
- (- (point) 2)
- (1- (point)))
- (point) 'face font-lock-variable-name-face)
- (while tag
- (cperl-postpone-fontification
- (car (car tag)) (cdr (car tag))
- 'face font-lock-type-face)
- (setq tag (cdr tag)))
- (setq was-subgr nil)) ; did facing already
- ;; Now rare stuff:
- ((and (match-beginning 2) ; #-comment
- (/= (match-beginning 2) (match-end 2)))
- (beginning-of-line 2)
- (if (> (point) e)
- (goto-char (1- e))))
- ((match-beginning 4) ; character "]"
- (setq was-subgr nil) ; We do stuff here
- (goto-char (match-end 0))
- (if cperl-use-syntax-table-text-property
- (put-text-property
- (1- (point)) (point)
- 'syntax-table cperl-st-punct))
- (cperl-postpone-fontification
- (1- (point)) (point)
- 'face font-lock-function-name-face))
- ((match-beginning 8) ; (?{})
- (setq was-subgr (point)
- tag (match-end 0))
- (if (or
- (setq qtag
- (cperl-forward-group-in-re st-l))
- (and (>= (point) e)
- (setq qtag "no matching `)' found"))
- (and
- (not (eq (char-after (- (point) 2))
- ?\} ))
- (setq qtag "Can't find })")))
- (progn
- (goto-char (1- e))
- (message qtag))
- (cperl-postpone-fontification
- (1- tag) (1- (point))
- 'face font-lock-variable-name-face)
- (if cperl-use-syntax-table-text-property
- (progn
- (put-text-property
- (1- (point)) (point)
- 'syntax-table cperl-st-cfence)
- (put-text-property
- was-subgr (1+ was-subgr)
- 'syntax-table cperl-st-cfence))))
- (setq was-subgr nil))
- (t ; (?#)-comment
- ;; Inside "(" and "\" arn't special in any way
- ;; Works also if the outside delimiters are ().
- (or ;;(if (eq (char-after b) ?\) )
- ;;(re-search-forward
- ;; "[^\\\\]\\(\\\\\\\\\\)*\\\\)"
- ;; (1- e) 'toend)
- (search-forward ")" (1- e) 'toend)
- ;;)
- (message
- "Couldn't find end of (?#...)-comment in a REx, pos=%s"
- REx-subgr-start)))))
- (if (>= (point) e)
- (goto-char (1- e)))
- (cond
- ((eq was-subgr t)
- (setq REx-subgr-end (point))
- (cperl-commentify
- REx-subgr-start REx-subgr-end nil)
- (cperl-postpone-fontification
- REx-subgr-start REx-subgr-end
- 'face font-lock-comment-face))))))
- (if (and is-REx is-x-REx)
- (put-text-property (1+ b) (1- e)
- 'syntax-subtype 'x-REx)))
- (if i2
- (progn
- (cperl-postpone-fontification
- (1- e1) e1 'face font-lock-constant-face)
- (if (assoc (char-after b) cperl-starters)
- (progn
- (cperl-postpone-fontification
- b1 (1+ b1) 'face font-lock-constant-face)
- (put-text-property b1 (1+ b1)
- 'REx-part2 t)))))
- (if (> (point) max)
- (setq tmpend tb))))
- ((match-beginning 17) ; sub with prototype or attribute
- ;; 1+6+2+1+1=11 extra () before this (sub with proto/attr):
- ;;"\\<sub\\>\\(" ;12
- ;; cperl-white-and-comment-rex ;13
- ;; "\\([a-zA-Z_:'0-9]+\\)\\)?" ; name ;14
- ;;"\\(" cperl-maybe-white-and-comment-rex ;15,16
- ;; "\\(([^()]*)\\|:[^:]\\)\\)" ; 17:proto or attribute start
- (setq b1 (match-beginning 14) e1 (match-end 14))
- (if (memq (char-after (1- b))
- '(?\$ ?\@ ?\% ?\& ?\*))
- nil
- (goto-char b)
- (if (eq (char-after (match-beginning 17)) ?\( )
- (progn
- (cperl-commentify ; Prototypes; mark as string
- (match-beginning 17) (match-end 17) t)
- (goto-char (match-end 0))
- ;; Now look for attributes after prototype:
- (forward-comment (buffer-size))
- (and (looking-at ":[^:]")
- (cperl-find-sub-attrs st-l b1 e1 b)))
- ;; treat attributes without prototype
- (goto-char (match-beginning 17))
- (cperl-find-sub-attrs st-l b1 e1 b))))
- ;; 1+6+2+1+1+6+1=18 extra () before this:
- ;; "\\(\\<sub[ \t\n\f]+\\|[&*$@%]\\)[a-zA-Z0-9_]*'")
- ((match-beginning 19) ; old $abc'efg syntax
- (setq bb (match-end 0))
- ;;;(if (nth 3 state) nil ; in string
- (put-text-property (1- bb) bb 'syntax-table cperl-st-word)
- (goto-char bb))
- ;; 1+6+2+1+1+6+1+1=19 extra () before this:
- ;; "__\\(END\\|DATA\\)__"
- ((match-beginning 20) ; __END__, __DATA__
- (setq bb (match-end 0))
- ;; (put-text-property b (1+ bb) 'syntax-type 'pod) ; Cheat
- (cperl-commentify b bb nil)
- (setq end t))
- ;; "\\\\\\(['`\"($]\\)"
- ((match-beginning 21)
- ;; Trailing backslash; make non-quoting outside string/comment
- (setq bb (match-end 0))
- (goto-char b)
- (skip-chars-backward "\\\\")
- ;;;(setq i2 (= (% (skip-chars-backward "\\\\") 2) -1))
- (cperl-modify-syntax-type b cperl-st-punct)
- (goto-char bb))
- (t (error "Error in regexp of the sniffer")))
- (if (> (point) stop-point)
- (progn
- (if end
- (message "Garbage after __END__/__DATA__ ignored")
- (message "Unbalanced syntax found while scanning")
- (or (car err-l) (setcar err-l b)))
- (goto-char stop-point))))
- (setq cperl-syntax-state (cons state-point state)
- ;; Do not mark syntax as done past tmpend???
- cperl-syntax-done-to (or tmpend (max (point) max)))
- ;;(message "state-at=%s, done-to=%s" state-point cperl-syntax-done-to)
- )
- (if (car err-l) (goto-char (car err-l))
- (or non-inter
- (message "Scanning for \"hard\" Perl constructions... done"))))
- (and (buffer-modified-p)
- (not modified)
- (set-buffer-modified-p nil))
- (set-syntax-table cperl-mode-syntax-table))
- (list (car err-l) overshoot)))
-
-(defun cperl-find-pods-heres-region (min max)
- (interactive "r")
- (cperl-find-pods-heres min max))
-
-(defun cperl-backward-to-noncomment (lim)
- ;; Stops at lim or after non-whitespace that is not in comment
- ;; XXXX Wrongly understands end-of-multiline strings with # as comment
- (let (stop p pr)
- (while (and (not stop) (> (point) (or lim (point-min))))
- (skip-chars-backward " \t\n\f" lim)
- (setq p (point))
- (beginning-of-line)
- (if (memq (setq pr (get-text-property (point) 'syntax-type))
- '(pod here-doc here-doc-delim))
- (cperl-unwind-to-safe nil)
- (or (and (looking-at "^[ \t]*\\(#\\|$\\)")
- (not (memq pr '(string prestring))))
- (progn (cperl-to-comment-or-eol) (bolp))
- (progn
- (skip-chars-backward " \t")
- (if (< p (point)) (goto-char p))
- (setq stop t)))))))
-
-;; Used only in `cperl-calculate-indent'...
-(defun cperl-block-p () ; Do not C-M-q ! One string contains ";" !
- ;; Positions is before ?\{. Checks whether it starts a block.
- ;; No save-excursion! This is more a distinguisher of a block/hash ref...
- (cperl-backward-to-noncomment (point-min))
- (or (memq (preceding-char) (append ";){}$@&%\C-@" nil)) ; Or label! \C-@ at bobp
- ; Label may be mixed up with `$blah :'
- (save-excursion (cperl-after-label))
- (get-text-property (cperl-1- (point)) 'attrib-group)
- (and (memq (char-syntax (preceding-char)) '(?w ?_))
- (progn
- (backward-sexp)
- ;; sub {BLK}, print {BLK} $data, but NOT `bless', `return', `tr'
- (or (and (looking-at "[a-zA-Z0-9_:]+[ \t\n\f]*[{#]") ; Method call syntax
- (not (looking-at "\\(bless\\|return\\|q[wqrx]?\\|tr\\|[smy]\\)\\>")))
- ;; sub bless::foo {}
- (progn
- (cperl-backward-to-noncomment (point-min))
- (and (eq (preceding-char) ?b)
- (progn
- (forward-sexp -1)
- (looking-at "sub[ \t\n\f#]")))))))))
-
-;;; What is the difference of (cperl-after-block-p lim t) and (cperl-block-p)?
-;;; No save-excursion; condition-case ... In (cperl-block-p) the block
-;;; may be a part of an in-statement construct, such as
-;;; ${something()}, print {FH} $data.
-;;; Moreover, one takes positive approach (looks for else,grep etc)
-;;; another negative (looks for bless,tr etc)
-(defun cperl-after-block-p (lim &optional pre-block)
- "Return true if the preceeding } (if PRE-BLOCK, following {) delimits a block.
-Would not look before LIM. Assumes that LIM is a good place to begin a
-statement. The kind of block we treat here is one after which a new
-statement would start; thus the block in ${func()} does not count."
- (save-excursion
- (condition-case nil
- (progn
- (or pre-block (forward-sexp -1))
- (cperl-backward-to-noncomment lim)
- (or (eq (point) lim)
- ;; if () {} // sub f () {} // sub f :a(') {}
- (eq (preceding-char) ?\) )
- ;; label: {}
- (save-excursion (cperl-after-label))
- ;; sub :attr {}
- (get-text-property (cperl-1- (point)) 'attrib-group)
- (if (memq (char-syntax (preceding-char)) '(?w ?_)) ; else {}
- (save-excursion
- (forward-sexp -1)
- ;; else {} but not else::func {}
- (or (and (looking-at "\\(else\\|continue\\|grep\\|map\\|BEGIN\\|END\\|CHECK\\|INIT\\)\\>")
- (not (looking-at "\\(\\sw\\|_\\)+::")))
- ;; sub f {}
- (progn
- (cperl-backward-to-noncomment lim)
- (and (eq (preceding-char) ?b)
- (progn
- (forward-sexp -1)
- (looking-at "sub[ \t\n\f#]"))))))
- ;; What preceeds is not word... XXXX Last statement in sub???
- (cperl-after-expr-p lim))))
- (error nil))))
-
-(defun cperl-after-expr-p (&optional lim chars test)
- "Return true if the position is good for start of expression.
-TEST is the expression to evaluate at the found position. If absent,
-CHARS is a string that contains good characters to have before us (however,
-`}' is treated \"smartly\" if it is not in the list)."
- (let ((lim (or lim (point-min)))
- stop p pr)
- (cperl-update-syntaxification (point) (point))
- (save-excursion
- (while (and (not stop) (> (point) lim))
- (skip-chars-backward " \t\n\f" lim)
- (setq p (point))
- (beginning-of-line)
- ;;(memq (setq pr (get-text-property (point) 'syntax-type))
- ;; '(pod here-doc here-doc-delim))
- (if (get-text-property (point) 'here-doc-group)
- (progn
- (goto-char
- (cperl-beginning-of-property (point) 'here-doc-group))
- (beginning-of-line 0)))
- (if (get-text-property (point) 'in-pod)
- (progn
- (goto-char
- (cperl-beginning-of-property (point) 'in-pod))
- (beginning-of-line 0)))
- (if (looking-at "^[ \t]*\\(#\\|$\\)") nil ; Only comment, skip
- ;; Else: last iteration, or a label
- (cperl-to-comment-or-eol) ; Will not move past "." after a format
- (skip-chars-backward " \t")
- (if (< p (point)) (goto-char p))
- (setq p (point))
- (if (and (eq (preceding-char) ?:)
- (progn
- (forward-char -1)
- (skip-chars-backward " \t\n\f" lim)
- (memq (char-syntax (preceding-char)) '(?w ?_))))
- (forward-sexp -1) ; Possibly label. Skip it
- (goto-char p)
- (setq stop t))))
- (or (bobp) ; ???? Needed
- (eq (point) lim)
- (looking-at "[ \t]*__\\(END\\|DATA\\)__") ; After this anything goes
- (progn
- (if test (eval test)
- (or (memq (preceding-char) (append (or chars "{;") nil))
- (and (eq (preceding-char) ?\})
- (cperl-after-block-p lim))
- (and (eq (following-char) ?.) ; in format: see comment above
- (eq (get-text-property (point) 'syntax-type)
- 'format)))))))))
-
-(defun cperl-backward-to-start-of-continued-exp (lim)
- (if (memq (preceding-char) (append ")]}\"'`" nil))
- (forward-sexp -1))
- (beginning-of-line)
- (if (<= (point) lim)
- (goto-char (1+ lim)))
- (skip-chars-forward " \t"))
-
-(defun cperl-after-block-and-statement-beg (lim)
- ;; We assume that we are after ?\}
- (and
- (cperl-after-block-p lim)
- (save-excursion
- (forward-sexp -1)
- (cperl-backward-to-noncomment (point-min))
- (or (bobp)
- (eq (point) lim)
- (not (= (char-syntax (preceding-char)) ?w))
- (progn
- (forward-sexp -1)
- (not
- (looking-at
- "\\(map\\|grep\\|printf?\\|system\\|exec\\|tr\\|s\\)\\>")))))))
-
-\f
-(defvar innerloop-done nil)
-(defvar last-depth nil)
-
-(defun cperl-indent-exp ()
- "Simple variant of indentation of continued-sexp.
-
-Will not indent comment if it starts at `comment-indent' or looks like
-continuation of the comment on the previous line.
-
-If `cperl-indent-region-fix-constructs', will improve spacing on
-conditional/loop constructs."
- (interactive)
- (save-excursion
- (let ((tmp-end (progn (end-of-line) (point))) top done)
- (save-excursion
- (beginning-of-line)
- (while (null done)
- (setq top (point))
- (while (= (nth 0 (parse-partial-sexp (point) tmp-end
- -1)) -1)
- (setq top (point))) ; Get the outermost parenths in line
- (goto-char top)
- (while (< (point) tmp-end)
- (parse-partial-sexp (point) tmp-end nil t) ; To start-sexp or eol
- (or (eolp) (forward-sexp 1)))
- (if (> (point) tmp-end)
- (save-excursion
- (end-of-line)
- (setq tmp-end (point)))
- (setq done t)))
- (goto-char tmp-end)
- (setq tmp-end (point-marker)))
- (if cperl-indent-region-fix-constructs
- (cperl-fix-line-spacing tmp-end))
- (cperl-indent-region (point) tmp-end))))
-
-(defun cperl-fix-line-spacing (&optional end parse-data)
- "Improve whitespace in a conditional/loop construct.
-Returns some position at the last line."
- (interactive)
- (or end
- (setq end (point-max)))
- (let ((ee (save-excursion (end-of-line) (point)))
- (cperl-indent-region-fix-constructs
- (or cperl-indent-region-fix-constructs 1))
- p pp ml have-brace ret)
- (save-excursion
- (beginning-of-line)
- (setq ret (point))
- ;; }? continue
- ;; blah; }
- (if (not
- (or (looking-at "[ \t]*\\(els\\(e\\|if\\)\\|continue\\|if\\|while\\|for\\(each\\)?\\|until\\)")
- (setq have-brace (save-excursion (search-forward "}" ee t)))))
- nil ; Do not need to do anything
- ;; Looking at:
- ;; }
- ;; else
- (if (and cperl-merge-trailing-else
- (looking-at
- "[ \t]*}[ \t]*\n[ \t\n]*\\(els\\(e\\|if\\)\\|continue\\)\\>"))
- (progn
- (search-forward "}")
- (setq p (point))
- (skip-chars-forward " \t\n")
- (delete-region p (point))
- (insert (make-string cperl-indent-region-fix-constructs ?\ ))
- (beginning-of-line)))
- ;; Looking at:
- ;; } else
- (if (looking-at "[ \t]*}\\(\t*\\|[ \t][ \t]+\\)\\<\\(els\\(e\\|if\\)\\|continue\\)\\>")
- (progn
- (search-forward "}")
- (delete-horizontal-space)
- (insert (make-string cperl-indent-region-fix-constructs ?\ ))
- (beginning-of-line)))
- ;; Looking at:
- ;; else {
- (if (looking-at
- "[ \t]*}?[ \t]*\\<\\(\\els\\(e\\|if\\)\\|continue\\|unless\\|if\\|while\\|for\\(each\\)?\\|until\\)\\>\\(\t*\\|[ \t][ \t]+\\)[^ \t\n#]")
- (progn
- (forward-word 1)
- (delete-horizontal-space)
- (insert (make-string cperl-indent-region-fix-constructs ?\ ))
- (beginning-of-line)))
- ;; Looking at:
- ;; foreach my $var
- (if (looking-at
- "[ \t]*\\<for\\(each\\)?[ \t]+\\(my\\|local\\|our\\)\\(\t*\\|[ \t][ \t]+\\)[^ \t\n]")
- (progn
- (forward-word 2)
- (delete-horizontal-space)
- (insert (make-string cperl-indent-region-fix-constructs ?\ ))
- (beginning-of-line)))
- ;; Looking at:
- ;; foreach my $var (
- (if (looking-at
- "[ \t]*\\<for\\(each\\)?[ \t]+\\(my\\|local\\|our\\)[ \t]*\\$[_a-zA-Z0-9]+\\(\t*\\|[ \t][ \t]+\\)[^ \t\n#]")
- (progn
- (forward-sexp 3)
- (delete-horizontal-space)
- (insert
- (make-string cperl-indent-region-fix-constructs ?\ ))
- (beginning-of-line)))
- ;; Looking at:
- ;; } foreach my $var () {
- (if (looking-at
- "[ \t]*\\(}[ \t]*\\)?\\<\\(\\els\\(e\\|if\\)\\|continue\\|if\\|unless\\|while\\|for\\(each\\)?\\(\\([ \t]+\\(my\\|local\\|our\\)\\)?[ \t]*\\$[_a-zA-Z0-9]+\\)?\\|until\\)\\>\\([ \t]*(\\|[ \t\n]*{\\)\\|[ \t]*{")
- (progn
- (setq ml (match-beginning 8))
- (re-search-forward "[({]")
- (forward-char -1)
- (setq p (point))
- (if (eq (following-char) ?\( )
- (progn
- (forward-sexp 1)
- (setq pp (point)))
- ;; after `else' or nothing
- (if ml ; after `else'
- (skip-chars-backward " \t\n")
- (beginning-of-line))
- (setq pp nil))
- ;; Now after the sexp before the brace
- ;; Multiline expr should be special
- (setq ml (and pp (save-excursion (goto-char p)
- (search-forward "\n" pp t))))
- (if (and (or (not pp) (< pp end))
- (looking-at "[ \t\n]*{"))
- (progn
- (cond
- ((bolp) ; Were before `{', no if/else/etc
- nil)
- ((looking-at "\\(\t*\\| [ \t]+\\){")
- (delete-horizontal-space)
- (if (if ml
- cperl-extra-newline-before-brace-multiline
- cperl-extra-newline-before-brace)
- (progn
- (delete-horizontal-space)
- (insert "\n")
- (setq ret (point))
- (if (cperl-indent-line parse-data)
- (progn
- (cperl-fix-line-spacing end parse-data)
- (setq ret (point)))))
- (insert
- (make-string cperl-indent-region-fix-constructs ?\ ))))
- ((and (looking-at "[ \t]*\n")
- (not (if ml
- cperl-extra-newline-before-brace-multiline
- cperl-extra-newline-before-brace)))
- (setq pp (point))
- (skip-chars-forward " \t\n")
- (delete-region pp (point))
- (insert
- (make-string cperl-indent-region-fix-constructs ?\ ))))
- ;; Now we are before `{'
- (if (looking-at "[ \t\n]*{[ \t]*[^ \t\n#]")
- (progn
- (skip-chars-forward " \t\n")
- (setq pp (point))
- (forward-sexp 1)
- (setq p (point))
- (goto-char pp)
- (setq ml (search-forward "\n" p t))
- (if (or cperl-break-one-line-blocks-when-indent ml)
- ;; not good: multi-line BLOCK
- (progn
- (goto-char (1+ pp))
- (delete-horizontal-space)
- (insert "\n")
- (setq ret (point))
- (if (cperl-indent-line parse-data)
- (setq ret (cperl-fix-line-spacing end parse-data)))))))))))
- (beginning-of-line)
- (setq p (point) pp (save-excursion (end-of-line) (point))) ; May be different from ee.
- ;; Now check whether there is a hanging `}'
- ;; Looking at:
- ;; } blah
- (if (and
- cperl-fix-hanging-brace-when-indent
- have-brace
- (not (looking-at "[ \t]*}[ \t]*\\(\\<\\(els\\(if\\|e\\)\\|continue\\|while\\|until\\)\\>\\|$\\|#\\)"))
- (condition-case nil
- (progn
- (up-list 1)
- (if (and (<= (point) pp)
- (eq (preceding-char) ?\} )
- (cperl-after-block-and-statement-beg (point-min)))
- t
- (goto-char p)
- nil))
- (error nil)))
- (progn
- (forward-char -1)
- (skip-chars-backward " \t")
- (if (bolp)
- ;; `}' was the first thing on the line, insert NL *after* it.
- (progn
- (cperl-indent-line parse-data)
- (search-forward "}")
- (delete-horizontal-space)
- (insert "\n"))
- (delete-horizontal-space)
- (or (eq (preceding-char) ?\;)
- (bolp)
- (and (eq (preceding-char) ?\} )
- (cperl-after-block-p (point-min)))
- (insert ";"))
- (insert "\n")
- (setq ret (point)))
- (if (cperl-indent-line parse-data)
- (setq ret (cperl-fix-line-spacing end parse-data)))
- (beginning-of-line)))))
- ret))
-
-(defvar cperl-update-start) ; Do not need to make them local
-(defvar cperl-update-end)
-(defun cperl-delay-update-hook (beg end old-len)
- (setq cperl-update-start (min beg (or cperl-update-start (point-max))))
- (setq cperl-update-end (max end (or cperl-update-end (point-min)))))
-
-(defun cperl-indent-region (start end)
- "Simple variant of indentation of region in CPerl mode.
-Should be slow. Will not indent comment if it starts at `comment-indent'
-or looks like continuation of the comment on the previous line.
-Indents all the lines whose first character is between START and END
-inclusive.
-
-If `cperl-indent-region-fix-constructs', will improve spacing on
-conditional/loop constructs."
- (interactive "r")
- (cperl-update-syntaxification end end)
- (save-excursion
- (let (cperl-update-start cperl-update-end (h-a-c after-change-functions))
- (let ((indent-info (if cperl-emacs-can-parse
- (list nil nil nil) ; Cannot use '(), since will modify
- nil))
- (pm 0) (imenu-scanning-message "Indenting... (%3d%%)")
- after-change-functions ; Speed it up!
- st comm old-comm-indent new-comm-indent p pp i empty)
- (if h-a-c (add-hook 'after-change-functions 'cperl-delay-update-hook))
- (goto-char start)
- (setq old-comm-indent (and (cperl-to-comment-or-eol)
- (current-column))
- new-comm-indent old-comm-indent)
- (goto-char start)
- (setq end (set-marker (make-marker) end)) ; indentation changes pos
- (or (bolp) (beginning-of-line 2))
- (or (fboundp 'imenu-progress-message)
- (message "Indenting... For feedback load `imenu'..."))
- (while (and (<= (point) end) (not (eobp))) ; bol to check start
- (and (fboundp 'imenu-progress-message)
- (imenu-progress-message
- pm (/ (* 100 (- (point) start)) (- end start -1))))
- (setq st (point))
- (if (or
- (setq empty (looking-at "[ \t]*\n"))
- (and (setq comm (looking-at "[ \t]*#"))
- (or (eq (current-indentation) (or old-comm-indent
- comment-column))
- (setq old-comm-indent nil))))
- (if (and old-comm-indent
- (not empty)
- (= (current-indentation) old-comm-indent)
- (not (eq (get-text-property (point) 'syntax-type) 'pod))
- (not (eq (get-text-property (point) 'syntax-table)
- cperl-st-cfence)))
- (let ((comment-column new-comm-indent))
- (indent-for-comment)))
- (progn
- (setq i (cperl-indent-line indent-info))
- (or comm
- (not i)
- (progn
- (if cperl-indent-region-fix-constructs
- (goto-char (cperl-fix-line-spacing end indent-info)))
- (if (setq old-comm-indent
- (and (cperl-to-comment-or-eol)
- (not (memq (get-text-property (point)
- 'syntax-type)
- '(pod here-doc)))
- (not (eq (get-text-property (point)
- 'syntax-table)
- cperl-st-cfence))
- (current-column)))
- (progn (indent-for-comment)
- (skip-chars-backward " \t")
- (skip-chars-backward "#")
- (setq new-comm-indent (current-column))))))))
- (beginning-of-line 2))
- (if (fboundp 'imenu-progress-message)
- (imenu-progress-message pm 100)
- (message nil)))
- ;; Now run the update hooks
- (and after-change-functions
- cperl-update-end
- (save-excursion
- (goto-char cperl-update-end)
- (insert " ")
- (delete-char -1)
- (goto-char cperl-update-start)
- (insert " ")
- (delete-char -1))))))
-
-;; Stolen from lisp-mode with a lot of improvements
-
-(defun cperl-fill-paragraph (&optional justify iteration)
- "Like \\[fill-paragraph], but handle CPerl comments.
-If any of the current line is a comment, fill the comment or the
-block of it that point is in, preserving the comment's initial
-indentation and initial hashes. Behaves usually outside of comment."
- (interactive "P")
- (let (;; Non-nil if the current line contains a comment.
- has-comment
- fill-paragraph-function ; do not recurse
- ;; If has-comment, the appropriate fill-prefix for the comment.
- comment-fill-prefix
- ;; Line that contains code and comment (or nil)
- start
- c spaces len dc (comment-column comment-column))
- ;; Figure out what kind of comment we are looking at.
- (save-excursion
- (beginning-of-line)
- (cond
-
- ;; A line with nothing but a comment on it?
- ((looking-at "[ \t]*#[# \t]*")
- (setq has-comment t
- comment-fill-prefix (buffer-substring (match-beginning 0)
- (match-end 0))))
-
- ;; A line with some code, followed by a comment? Remember that the
- ;; semi which starts the comment shouldn't be part of a string or
- ;; character.
- ((cperl-to-comment-or-eol)
- (setq has-comment t)
- (looking-at "#+[ \t]*")
- (setq start (point) c (current-column)
- comment-fill-prefix
- (concat (make-string (current-column) ?\ )
- (buffer-substring (match-beginning 0) (match-end 0)))
- spaces (progn (skip-chars-backward " \t")
- (buffer-substring (point) start))
- dc (- c (current-column)) len (- start (point))
- start (point-marker))
- (delete-char len)
- (insert (make-string dc ?-))))) ; Placeholder (to avoid splitting???)
- (if (not has-comment)
- (fill-paragraph justify) ; Do the usual thing outside of comment
- ;; Narrow to include only the comment, and then fill the region.
- (save-restriction
- (narrow-to-region
- ;; Find the first line we should include in the region to fill.
- (if start (progn (beginning-of-line) (point))
- (save-excursion
- (while (and (zerop (forward-line -1))
- (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
- ;; We may have gone to far. Go forward again.
- (or (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")
- (forward-line 1))
- (point)))
- ;; Find the beginning of the first line past the region to fill.
- (save-excursion
- (while (progn (forward-line 1)
- (looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
- (point)))
- ;; Remove existing hashes
- (goto-char (point-min))
- (while (progn (forward-line 1) (< (point) (point-max)))
- (skip-chars-forward " \t")
- (if (looking-at "#+")
- (progn
- (if (and (eq (point) (match-beginning 0))
- (not (eq (point) (match-end 0)))) nil
- (error
- "Bug in Emacs: `looking-at' in `narrow-to-region': match-data is garbage"))
- (delete-char (- (match-end 0) (match-beginning 0))))))
-
- ;; Lines with only hashes on them can be paragraph boundaries.
- (let ((paragraph-start (concat paragraph-start "\\|^[ \t#]*$"))
- (paragraph-separate (concat paragraph-start "\\|^[ \t#]*$"))
- (fill-prefix comment-fill-prefix))
- (fill-paragraph justify)))
- (if (and start)
- (progn
- (goto-char start)
- (if (> dc 0)
- (progn (delete-char dc) (insert spaces)))
- (if (or (= (current-column) c) iteration) nil
- (setq comment-column c)
- (indent-for-comment)
- ;; Repeat once more, flagging as iteration
- (cperl-fill-paragraph justify t))))))
- t)
-
-(defun cperl-do-auto-fill ()
- ;; Break out if the line is short enough
- (if (> (save-excursion
- (end-of-line)
- (current-column))
- fill-column)
- (let ((c (save-excursion (beginning-of-line)
- (cperl-to-comment-or-eol) (point)))
- (s (memq (following-char) '(?\ ?\t))) marker)
- (if (>= c (point)) nil
- (setq marker (point-marker))
- (cperl-fill-paragraph)
- (goto-char marker)
- ;; Is not enough, sometimes marker is a start of line
- (if (bolp) (progn (re-search-forward "#+[ \t]*")
- (goto-char (match-end 0))))
- ;; Following space could have gone:
- (if (or (not s) (memq (following-char) '(?\ ?\t))) nil
- (insert " ")
- (backward-char 1))
- ;; Previous space could have gone:
- (or (memq (preceding-char) '(?\ ?\t)) (insert " "))))))
-
-(defun cperl-imenu-addback (lst &optional isback name)
- ;; We suppose that the lst is a DAG, unless the first element only
- ;; loops back, and ISBACK is set. Thus this function cannot be
- ;; applied twice without ISBACK set.
- (cond ((not cperl-imenu-addback) lst)
- (t
- (or name
- (setq name "+++BACK+++"))
- (mapcar (lambda (elt)
- (if (and (listp elt) (listp (cdr elt)))
- (progn
- ;; In the other order it goes up
- ;; one level only ;-(
- (setcdr elt (cons (cons name lst)
- (cdr elt)))
- (cperl-imenu-addback (cdr elt) t name))))
- (if isback (cdr lst) lst))
- lst)))
-
-(defun cperl-imenu--create-perl-index (&optional regexp)
- (require 'cl)
- (require 'imenu) ; May be called from TAGS creator
- (let ((index-alist '()) (index-pack-alist '()) (index-pod-alist '())
- (index-unsorted-alist '()) (i-s-f (default-value 'imenu-sort-function))
- (index-meth-alist '()) meth
- packages ends-ranges p marker is-proto
- (prev-pos 0) is-pack index index1 name (end-range 0) package)
- (goto-char (point-min))
- (if noninteractive
- (message "Scanning Perl for index")
- (imenu-progress-message prev-pos 0))
- (cperl-update-syntaxification (point-max) (point-max))
- ;; Search for the function
- (progn ;;save-match-data
- (while (re-search-forward
- (or regexp cperl-imenu--function-name-regexp-perl)
- nil t)
- (or noninteractive
- (imenu-progress-message prev-pos))
- ;; 2=package-group, 5=package-name 8=sub-name
- (cond
- ((and ; Skip some noise if building tags
- (match-beginning 5) ; package name
- ;;(eq (char-after (match-beginning 2)) ?p) ; package
- (not (save-match-data
- (looking-at "[ \t\n]*;")))) ; Plain text word 'package'
- nil)
- ((and
- (or (match-beginning 2)
- (match-beginning 8)) ; package or sub
- ;; Skip if quoted (will not skip multi-line ''-strings :-():
- (null (get-text-property (match-beginning 1) 'syntax-table))
- (null (get-text-property (match-beginning 1) 'syntax-type))
- (null (get-text-property (match-beginning 1) 'in-pod)))
- (setq is-pack (match-beginning 2))
- ;; (if (looking-at "([^()]*)[ \t\n\f]*")
- ;; (goto-char (match-end 0))) ; Messes what follows
- (setq meth nil
- p (point))
- (while (and ends-ranges (>= p (car ends-ranges)))
- ;; delete obsolete entries
- (setq ends-ranges (cdr ends-ranges) packages (cdr packages)))
- (setq package (or (car packages) "")
- end-range (or (car ends-ranges) 0))
- (if is-pack ; doing "package"
- (progn
- (if (match-beginning 5) ; named package
- (setq name (buffer-substring (match-beginning 5)
- (match-end 5))
- name (progn
- (set-text-properties 0 (length name) nil name)
- name)
- package (concat name "::")
- name (concat "package " name))
- ;; Support nameless packages
- (setq name "package;" package ""))
- (setq end-range
- (save-excursion
- (parse-partial-sexp (point) (point-max) -1) (point))
- ends-ranges (cons end-range ends-ranges)
- packages (cons package packages)))
- (setq is-proto
- (or (eq (following-char) ?\;)
- (eq 0 (get-text-property (point) 'attrib-group)))))
- ;; Skip this function name if it is a prototype declaration.
- (if (and is-proto (not is-pack)) nil
- (or is-pack
- (setq name
- (buffer-substring (match-beginning 8) (match-end 8)))
- (set-text-properties 0 (length name) nil name))
- (setq marker (make-marker))
- (set-marker marker (match-end (if is-pack 2 8)))
- (cond (is-pack nil)
- ((string-match "[:']" name)
- (setq meth t))
- ((> p end-range) nil)
- (t
- (setq name (concat package name) meth t)))
- (setq index (cons name marker))
- (if is-pack
- (push index index-pack-alist)
- (push index index-alist))
- (if meth (push index index-meth-alist))
- (push index index-unsorted-alist)))
- ((match-beginning 16) ; POD section
- (setq name (buffer-substring (match-beginning 17) (match-end 17))
- marker (make-marker))
- (set-marker marker (match-beginning 17))
- (set-text-properties 0 (length name) nil name)
- (setq name (concat (make-string
- (* 3 (- (char-after (match-beginning 16)) ?1))
- ?\ )
- name)
- index (cons name marker))
- (setq index1 (cons (concat "=" name) (cdr index)))
- (push index index-pod-alist)
- (push index1 index-unsorted-alist)))))
- (or noninteractive
- (imenu-progress-message prev-pos 100))
- (setq index-alist
- (if (default-value 'imenu-sort-function)
- (sort index-alist (default-value 'imenu-sort-function))
- (nreverse index-alist)))
- (and index-pod-alist
- (push (cons "+POD headers+..."
- (nreverse index-pod-alist))
- index-alist))
- (and (or index-pack-alist index-meth-alist)
- (let ((lst index-pack-alist) hier-list pack elt group name)
- ;; Remove "package ", reverse and uniquify.
- (while lst
- (setq elt (car lst) lst (cdr lst) name (substring (car elt) 8))
- (if (assoc name hier-list) nil
- (setq hier-list (cons (cons name (cdr elt)) hier-list))))
- (setq lst index-meth-alist)
- (while lst
- (setq elt (car lst) lst (cdr lst))
- (cond ((string-match "\\(::\\|'\\)[_a-zA-Z0-9]+$" (car elt))
- (setq pack (substring (car elt) 0 (match-beginning 0)))
- (if (setq group (assoc pack hier-list))
- (if (listp (cdr group))
- ;; Have some functions already
- (setcdr group
- (cons (cons (substring
- (car elt)
- (+ 2 (match-beginning 0)))
- (cdr elt))
- (cdr group)))
- (setcdr group (list (cons (substring
- (car elt)
- (+ 2 (match-beginning 0)))
- (cdr elt)))))
- (setq hier-list
- (cons (cons pack
- (list (cons (substring
- (car elt)
- (+ 2 (match-beginning 0)))
- (cdr elt))))
- hier-list))))))
- (push (cons "+Hierarchy+..."
- hier-list)
- index-alist)))
- (and index-pack-alist
- (push (cons "+Packages+..."
- (nreverse index-pack-alist))
- index-alist))
- (and (or index-pack-alist index-pod-alist
- (default-value 'imenu-sort-function))
- index-unsorted-alist
- (push (cons "+Unsorted List+..."
- (nreverse index-unsorted-alist))
- index-alist))
- (cperl-imenu-addback index-alist)))
-
-\f
-;; Suggested by Mark A. Hershberger
-(defun cperl-outline-level ()
- (looking-at outline-regexp)
- (cond ((not (match-beginning 1)) 0) ; beginning-of-file
-;;;; 2=package-group, 5=package-name 8=sub-name 16=head-level
- ((match-beginning 2) 0) ; package
- ((match-beginning 8) 1) ; sub
- ((match-beginning 16)
- (- (char-after (match-beginning 16)) ?0)) ; headN ==> N
- (t 5))) ; should not happen
-
-\f
-(defvar cperl-compilation-error-regexp-alist
- ;; This look like a paranoiac regexp: could anybody find a better one? (which WORKS).
- '(("^[^\n]* \\(file\\|at\\) \\([^ \t\n]+\\) [^\n]*line \\([0-9]+\\)[\\., \n]"
- 2 3))
- "Alist that specifies how to match errors in perl output.")
-
-(if (fboundp 'eval-after-load)
- (eval-after-load
- "mode-compile"
- '(setq perl-compilation-error-regexp-alist
- cperl-compilation-error-regexp-alist)))
-
-
-(defun cperl-windowed-init ()
- "Initialization under windowed version."
- (if (or (featurep 'ps-print) cperl-faces-init)
- ;; Need to init anyway:
- (or cperl-faces-init (cperl-init-faces))
- (add-hook 'font-lock-mode-hook
- (function
- (lambda ()
- (if (memq major-mode '(perl-mode cperl-mode))
- (progn
- (or cperl-faces-init (cperl-init-faces)))))))
- (if (fboundp 'eval-after-load)
- (eval-after-load
- "ps-print"
- '(or cperl-faces-init (cperl-init-faces))))))
-
-(defun cperl-load-font-lock-keywords ()
- (or cperl-faces-init (cperl-init-faces))
- perl-font-lock-keywords)
-
-(defun cperl-load-font-lock-keywords-1 ()
- (or cperl-faces-init (cperl-init-faces))
- perl-font-lock-keywords-1)
-
-(defun cperl-load-font-lock-keywords-2 ()
- (or cperl-faces-init (cperl-init-faces))
- perl-font-lock-keywords-2)
-
-(defvar perl-font-lock-keywords-1 nil
- "Additional expressions to highlight in Perl mode. Minimal set.")
-(defvar perl-font-lock-keywords nil
- "Additional expressions to highlight in Perl mode. Default set.")
-(defvar perl-font-lock-keywords-2 nil
- "Additional expressions to highlight in Perl mode. Maximal set.")
-
-(defvar font-lock-background-mode)
-(defvar font-lock-display-type)
-(defun cperl-init-faces-weak ()
- ;; Allow `cperl-find-pods-heres' to run.
- (or (boundp 'font-lock-constant-face)
- (cperl-force-face font-lock-constant-face
- "Face for constant and label names")
- ;;(setq font-lock-constant-face 'font-lock-constant-face)
- ))
-
-(defun cperl-init-faces ()
- (condition-case errs
- (progn
- (require 'font-lock)
- (and (fboundp 'font-lock-fontify-anchored-keywords)
- (featurep 'font-lock-extra)
- (message "You have an obsolete package `font-lock-extra'. Install `choose-color'."))
- (let (t-font-lock-keywords t-font-lock-keywords-1 font-lock-anchored)
- (if (fboundp 'font-lock-fontify-anchored-keywords)
- (setq font-lock-anchored t))
- (setq
- t-font-lock-keywords
- (list
- (list "[ \t]+$" 0 cperl-invalid-face t)
- (cons
- (concat
- "\\(^\\|[^$@%&\\]\\)\\<\\("
- (mapconcat
- 'identity
- '("if" "until" "while" "elsif" "else" "unless" "for"
- "foreach" "continue" "exit" "die" "last" "goto" "next"
- "redo" "return" "local" "exec" "sub" "do" "dump" "use" "our"
- "require" "package" "eval" "my" "BEGIN" "END" "CHECK" "INIT")
- "\\|") ; Flow control
- "\\)\\>") 2) ; was "\\)[ \n\t;():,\|&]"
- ; In what follows we use `type' style
- ; for overwritable builtins
- (list
- (concat
- "\\(^\\|[^$@%&\\]\\)\\<\\("
- ;; "CORE" "__FILE__" "__LINE__" "abs" "accept" "alarm"
- ;; "and" "atan2" "bind" "binmode" "bless" "caller"
- ;; "chdir" "chmod" "chown" "chr" "chroot" "close"
- ;; "closedir" "cmp" "connect" "continue" "cos" "crypt"
- ;; "dbmclose" "dbmopen" "die" "dump" "endgrent"
- ;; "endhostent" "endnetent" "endprotoent" "endpwent"
- ;; "endservent" "eof" "eq" "exec" "exit" "exp" "fcntl"
- ;; "fileno" "flock" "fork" "formline" "ge" "getc"
- ;; "getgrent" "getgrgid" "getgrnam" "gethostbyaddr"
- ;; "gethostbyname" "gethostent" "getlogin"
- ;; "getnetbyaddr" "getnetbyname" "getnetent"
- ;; "getpeername" "getpgrp" "getppid" "getpriority"
- ;; "getprotobyname" "getprotobynumber" "getprotoent"
- ;; "getpwent" "getpwnam" "getpwuid" "getservbyname"
- ;; "getservbyport" "getservent" "getsockname"
- ;; "getsockopt" "glob" "gmtime" "gt" "hex" "index" "int"
- ;; "ioctl" "join" "kill" "lc" "lcfirst" "le" "length"
- ;; "link" "listen" "localtime" "lock" "log" "lstat" "lt"
- ;; "mkdir" "msgctl" "msgget" "msgrcv" "msgsnd" "ne"
- ;; "not" "oct" "open" "opendir" "or" "ord" "pack" "pipe"
- ;; "quotemeta" "rand" "read" "readdir" "readline"
- ;; "readlink" "readpipe" "recv" "ref" "rename" "require"
- ;; "reset" "reverse" "rewinddir" "rindex" "rmdir" "seek"
- ;; "seekdir" "select" "semctl" "semget" "semop" "send"
- ;; "setgrent" "sethostent" "setnetent" "setpgrp"
- ;; "setpriority" "setprotoent" "setpwent" "setservent"
- ;; "setsockopt" "shmctl" "shmget" "shmread" "shmwrite"
- ;; "shutdown" "sin" "sleep" "socket" "socketpair"
- ;; "sprintf" "sqrt" "srand" "stat" "substr" "symlink"
- ;; "syscall" "sysopen" "sysread" "system" "syswrite" "tell"
- ;; "telldir" "time" "times" "truncate" "uc" "ucfirst"
- ;; "umask" "unlink" "unpack" "utime" "values" "vec"
- ;; "wait" "waitpid" "wantarray" "warn" "write" "x" "xor"
- "a\\(bs\\|ccept\\|tan2\\|larm\\|nd\\)\\|"
- "b\\(in\\(d\\|mode\\)\\|less\\)\\|"
- "c\\(h\\(r\\(\\|oot\\)\\|dir\\|mod\\|own\\)\\|aller\\|rypt\\|"
- "lose\\(\\|dir\\)\\|mp\\|o\\(s\\|n\\(tinue\\|nect\\)\\)\\)\\|"
- "CORE\\|d\\(ie\\|bm\\(close\\|open\\)\\|ump\\)\\|"
- "e\\(x\\(p\\|it\\|ec\\)\\|q\\|nd\\(p\\(rotoent\\|went\\)\\|"
- "hostent\\|servent\\|netent\\|grent\\)\\|of\\)\\|"
- "f\\(ileno\\|cntl\\|lock\\|or\\(k\\|mline\\)\\)\\|"
- "g\\(t\\|lob\\|mtime\\|e\\(\\|t\\(p\\(pid\\|r\\(iority\\|"
- "oto\\(byn\\(ame\\|umber\\)\\|ent\\)\\)\\|eername\\|w"
- "\\(uid\\|ent\\|nam\\)\\|grp\\)\\|host\\(by\\(addr\\|name\\)\\|"
- "ent\\)\\|s\\(erv\\(by\\(port\\|name\\)\\|ent\\)\\|"
- "ock\\(name\\|opt\\)\\)\\|c\\|login\\|net\\(by\\(addr\\|name\\)\\|"
- "ent\\)\\|gr\\(ent\\|nam\\|gid\\)\\)\\)\\)\\|"
- "hex\\|i\\(n\\(t\\|dex\\)\\|octl\\)\\|join\\|kill\\|"
- "l\\(i\\(sten\\|nk\\)\\|stat\\|c\\(\\|first\\)\\|t\\|e"
- "\\(\\|ngth\\)\\|o\\(c\\(altime\\|k\\)\\|g\\)\\)\\|m\\(sg\\(rcv\\|snd\\|"
- "ctl\\|get\\)\\|kdir\\)\\|n\\(e\\|ot\\)\\|o\\(pen\\(\\|dir\\)\\|"
- "r\\(\\|d\\)\\|ct\\)\\|p\\(ipe\\|ack\\)\\|quotemeta\\|"
- "r\\(index\\|and\\|mdir\\|e\\(quire\\|ad\\(pipe\\|\\|lin"
- "\\(k\\|e\\)\\|dir\\)\\|set\\|cv\\|verse\\|f\\|winddir\\|name"
- "\\)\\)\\|s\\(printf\\|qrt\\|rand\\|tat\\|ubstr\\|e\\(t\\(p\\(r"
- "\\(iority\\|otoent\\)\\|went\\|grp\\)\\|hostent\\|s\\(ervent\\|"
- "ockopt\\)\\|netent\\|grent\\)\\|ek\\(\\|dir\\)\\|lect\\|"
- "m\\(ctl\\|op\\|get\\)\\|nd\\)\\|h\\(utdown\\|m\\(read\\|ctl\\|"
- "write\\|get\\)\\)\\|y\\(s\\(read\\|call\\|open\\|tem\\|write\\)\\|"
- "mlink\\)\\|in\\|leep\\|ocket\\(pair\\|\\)\\)\\|t\\(runcate\\|"
- "ell\\(\\|dir\\)\\|ime\\(\\|s\\)\\)\\|u\\(c\\(\\|first\\)\\|"
- "time\\|mask\\|n\\(pack\\|link\\)\\)\\|v\\(alues\\|ec\\)\\|"
- "w\\(a\\(rn\\|it\\(pid\\|\\)\\|ntarray\\)\\|rite\\)\\|"
- "x\\(\\|or\\)\\|__\\(FILE__\\|LINE__\\|PACKAGE__\\)"
- "\\)\\>") 2 'font-lock-type-face)
- ;; In what follows we use `other' style
- ;; for nonoverwritable builtins
- ;; Somehow 's', 'm' are not auto-generated???
- (list
- (concat
- "\\(^\\|[^$@%&\\]\\)\\<\\("
- ;; "AUTOLOAD" "BEGIN" "CHECK" "DESTROY" "END" "INIT" "__END__" "chomp"
- ;; "chop" "defined" "delete" "do" "each" "else" "elsif"
- ;; "eval" "exists" "for" "foreach" "format" "goto"
- ;; "grep" "if" "keys" "last" "local" "map" "my" "next"
- ;; "no" "our" "package" "pop" "pos" "print" "printf" "push"
- ;; "q" "qq" "qw" "qx" "redo" "return" "scalar" "shift"
- ;; "sort" "splice" "split" "study" "sub" "tie" "tr"
- ;; "undef" "unless" "unshift" "untie" "until" "use"
- ;; "while" "y"
- "AUTOLOAD\\|BEGIN\\|CHECK\\|cho\\(p\\|mp\\)\\|d\\(e\\(fined\\|lete\\)\\|"
- "o\\)\\|DESTROY\\|e\\(ach\\|val\\|xists\\|ls\\(e\\|if\\)\\)\\|"
- "END\\|for\\(\\|each\\|mat\\)\\|g\\(rep\\|oto\\)\\|INIT\\|if\\|keys\\|"
- "l\\(ast\\|ocal\\)\\|m\\(ap\\|y\\)\\|n\\(ext\\|o\\)\\|our\\|"
- "p\\(ackage\\|rint\\(\\|f\\)\\|ush\\|o\\(p\\|s\\)\\)\\|"
- "q\\(\\|q\\|w\\|x\\|r\\)\\|re\\(turn\\|do\\)\\|s\\(pli\\(ce\\|t\\)\\|"
- "calar\\|tudy\\|ub\\|hift\\|ort\\)\\|t\\(r\\|ie\\)\\|"
- "u\\(se\\|n\\(shift\\|ti\\(l\\|e\\)\\|def\\|less\\)\\)\\|"
- "while\\|y\\|__\\(END\\|DATA\\)__" ;__DATA__ added manually
- "\\|[sm]" ; Added manually
- "\\)\\>") 2 'cperl-nonoverridable-face)
- ;; (mapconcat 'identity
- ;; '("#endif" "#else" "#ifdef" "#ifndef" "#if"
- ;; "#include" "#define" "#undef")
- ;; "\\|")
- '("-[rwxoRWXOezsfdlpSbctugkTBMAC]\\>\\([ \t]+_\\>\\)?" 0
- font-lock-function-name-face keep) ; Not very good, triggers at "[a-z]"
- ;; This highlights declarations and definitions differenty.
- ;; We do not try to highlight in the case of attributes:
- ;; it is already done by `cperl-find-pods-heres'
- (list (concat "\\<sub"
- cperl-white-and-comment-rex ; whitespace/comments
- "\\([^ \n\t{;()]+\\)" ; 2=name (assume non-anonymous)
- "\\("
- cperl-maybe-white-and-comment-rex ;whitespace/comments?
- "([^()]*)\\)?" ; prototype
- cperl-maybe-white-and-comment-rex ; whitespace/comments?
- "[{;]")
- 2 (if cperl-font-lock-multiline
- '(if (eq (char-after (cperl-1- (match-end 0))) ?\{ )
- 'font-lock-function-name-face
- 'font-lock-variable-name-face)
- ;; need to manually set 'multiline' for older font-locks
- '(progn
- (if (< 1 (count-lines (match-beginning 0)
- (match-end 0)))
- (put-text-property
- (+ 3 (match-beginning 0)) (match-end 0)
- 'syntax-type 'multiline))
- (if (eq (char-after (cperl-1- (match-end 0))) ?\{ )
- 'font-lock-function-name-face
- 'font-lock-variable-name-face))))
- '("\\<\\(package\\|require\\|use\\|import\\|no\\|bootstrap\\)[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t;]" ; require A if B;
- 2 font-lock-function-name-face)
- '("^[ \t]*format[ \t]+\\([a-zA-z_][a-zA-z_0-9:]*\\)[ \t]*=[ \t]*$"
- 1 font-lock-function-name-face)
- (cond ((featurep 'font-lock-extra)
- '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
- (2 font-lock-string-face t)
- (0 '(restart 2 t)))) ; To highlight $a{bc}{ef}
- (font-lock-anchored
- '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
- (2 font-lock-string-face t)
- ("\\=[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
- nil nil
- (1 font-lock-string-face t))))
- (t '("\\([]}\\\\%@>*&]\\|\\$[a-zA-Z0-9_:]*\\)[ \t]*{[ \t]*\\(-?[a-zA-Z0-9_:]+\\)[ \t]*}"
- 2 font-lock-string-face t)))
- '("[\[ \t{,(]\\(-?[a-zA-Z0-9_:]+\\)[ \t]*=>" 1
- font-lock-string-face t)
- '("^[ \t]*\\([a-zA-Z0-9_]+[ \t]*:\\)[ \t]*\\($\\|{\\|\\<\\(until\\|while\\|for\\(each\\)?\\|do\\)\\>\\)" 1
- font-lock-constant-face) ; labels
- '("\\<\\(continue\\|next\\|last\\|redo\\|goto\\)\\>[ \t]+\\([a-zA-Z0-9_:]+\\)" ; labels as targets
- 2 font-lock-constant-face)
- ;; Uncomment to get perl-mode-like vars
- ;;; '("[$*]{?\\(\\sw+\\)" 1 font-lock-variable-name-face)
- ;;; '("\\([@%]\\|\\$#\\)\\(\\sw+\\)"
- ;;; (2 (cons font-lock-variable-name-face '(underline))))
- (cond ((featurep 'font-lock-extra)
- '("^[ \t]*\\(my\\|local\\|our\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
- (3 font-lock-variable-name-face)
- (4 '(another 4 nil
- ("\\=[ \t]*,[ \t]*\\([$@%*][a-zA-Z0-9_:]+\\)\\([ \t]*,\\)?"
- (1 font-lock-variable-name-face)
- (2 '(restart 2 nil) nil t)))
- nil t))) ; local variables, multiple
- (font-lock-anchored
- ;; 1=my_etc, 2=white? 3=(+white? 4=white? 5=var
- (` ((, (concat "\\<\\(my\\|local\\|our\\)"
- cperl-maybe-white-and-comment-rex
- "\\(("
- cperl-maybe-white-and-comment-rex
- "\\)?\\([$@%*]\\([a-zA-Z0-9_:]+\\|[^a-zA-Z0-9_]\\)\\)"))
- (5 (, (if cperl-font-lock-multiline
- 'font-lock-variable-name-face
- '(progn (setq cperl-font-lock-multiline-start
- (match-beginning 0))
- 'font-lock-variable-name-face))))
- ((, (concat "\\="
- cperl-maybe-white-and-comment-rex
- ","
- cperl-maybe-white-and-comment-rex
- "\\([$@%*]\\([a-zA-Z0-9_:]+\\|[^a-zA-Z0-9_]\\)\\)"))
- ;; Bug in font-lock: limit is used not only to limit
- ;; searches, but to set the "extend window for
- ;; facification" property. Thus we need to minimize.
- (, (if cperl-font-lock-multiline
- '(if (match-beginning 3)
- (save-excursion
- (goto-char (match-beginning 3))
- (condition-case nil
- (forward-sexp 1)
- (error
- (condition-case nil
- (forward-char 200)
- (error nil)))) ; typeahead
- (1- (point))) ; report limit
- (forward-char -2)) ; disable continued expr
- '(if (match-beginning 3)
- (point-max) ; No limit for continuation
- (forward-char -2)))) ; disable continued expr
- (, (if cperl-font-lock-multiline
- nil
- '(progn ; Do at end
- ;; "my" may be already fontified (POD),
- ;; so cperl-font-lock-multiline-start is nil
- (if (or (not cperl-font-lock-multiline-start)
- (> 2 (count-lines
- cperl-font-lock-multiline-start
- (point))))
- nil
- (put-text-property
- (1+ cperl-font-lock-multiline-start) (point)
- 'syntax-type 'multiline))
- (setq cperl-font-lock-multiline-start nil))))
- (3 font-lock-variable-name-face)))))
- (t '("^[ \t{}]*\\(my\\|local\\|our\\)[ \t]*\\(([ \t]*\\)?\\([$@%*][a-zA-Z0-9_:]+\\)"
- 3 font-lock-variable-name-face)))
- '("\\<for\\(each\\)?\\([ \t]+\\(my\\|local\\|our\\)\\)?[ \t]*\\(\\$[a-zA-Z_][a-zA-Z_0-9]*\\)[ \t]*("
- 4 font-lock-variable-name-face)))
- (setq
- t-font-lock-keywords-1
- (and (fboundp 'turn-on-font-lock) ; Check for newer font-lock
- ;; not yet as of XEmacs 19.12, works with 21.1.11
- (or
- (not cperl-xemacs-p)
- (string< "21.1.9" emacs-version)
- (and (string< "21.1.10" emacs-version)
- (string< emacs-version "21.1.2")))
- '(
- ("\\(\\([@%]\\|\$#\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)" 1
- (if (eq (char-after (match-beginning 2)) ?%)
- cperl-hash-face
- cperl-array-face)
- t) ; arrays and hashes
- ("\\(\\([$@]+\\)[a-zA-Z_:][a-zA-Z0-9_:]*\\)[ \t]*\\([[{]\\)"
- 1
- (if (= (- (match-end 2) (match-beginning 2)) 1)
- (if (eq (char-after (match-beginning 3)) ?{)
- cperl-hash-face
- cperl-array-face) ; arrays and hashes
- font-lock-variable-name-face) ; Just to put something
- t)
- ;;("\\([smy]\\|tr\\)\\([^a-z_A-Z0-9]\\)\\(\\([^\n\\]*||\\)\\)\\2")
- ;;; Too much noise from \s* @s[ and friends
- ;;("\\(\\<\\([msy]\\|tr\\)[ \t]*\\([^ \t\na-zA-Z0-9_]\\)\\|\\(/\\)\\)"
- ;;(3 font-lock-function-name-face t t)
- ;;(4
- ;; (if (cperl-slash-is-regexp)
- ;; font-lock-function-name-face 'default) nil t))
- )))
- (if cperl-highlight-variables-indiscriminately
- (setq t-font-lock-keywords-1
- (append t-font-lock-keywords-1
- (list '("[$*]{?\\(\\sw+\\)" 1
- font-lock-variable-name-face)))))
- (setq perl-font-lock-keywords-1
- (if cperl-syntaxify-by-font-lock
- (cons 'cperl-fontify-update
- t-font-lock-keywords)
- t-font-lock-keywords)
- perl-font-lock-keywords perl-font-lock-keywords-1
- perl-font-lock-keywords-2 (append
- perl-font-lock-keywords-1
- t-font-lock-keywords-1)))
- (if (fboundp 'ps-print-buffer) (cperl-ps-print-init))
- (if (or (featurep 'choose-color) (featurep 'font-lock-extra))
- (eval ; Avoid a warning
- '(font-lock-require-faces
- (list
- ;; Color-light Color-dark Gray-light Gray-dark Mono
- (list 'font-lock-comment-face
- ["Firebrick" "OrangeRed" "DimGray" "Gray80"]
- nil
- [nil nil t t t]
- [nil nil t t t]
- nil)
- (list 'font-lock-string-face
- ["RosyBrown" "LightSalmon" "Gray50" "LightGray"]
- nil
- nil
- [nil nil t t t]
- nil)
- (list 'font-lock-function-name-face
- (vector
- "Blue" "LightSkyBlue" "Gray50" "LightGray"
- (cdr (assq 'background-color ; if mono
- (frame-parameters))))
- (vector
- nil nil nil nil
- (cdr (assq 'foreground-color ; if mono
- (frame-parameters))))
- [nil nil t t t]
- nil
- nil)
- (list 'font-lock-variable-name-face
- ["DarkGoldenrod" "LightGoldenrod" "DimGray" "Gray90"]
- nil
- [nil nil t t t]
- [nil nil t t t]
- nil)
- (list 'font-lock-type-face
- ["DarkOliveGreen" "PaleGreen" "DimGray" "Gray80"]
- nil
- [nil nil t t t]
- nil
- [nil nil t t t])
- (list 'font-lock-constant-face
- ["CadetBlue" "Aquamarine" "Gray50" "LightGray"]
- nil
- [nil nil t t t]
- nil
- [nil nil t t t])
- (list 'cperl-nonoverridable-face
- ["chartreuse3" ("orchid1" "orange")
- nil "Gray80"]
- [nil nil "gray90"]
- [nil nil nil t t]
- [nil nil t t]
- [nil nil t t t])
- (list 'cperl-array-face
- ["blue" "yellow" nil "Gray80"]
- ["lightyellow2" ("navy" "os2blue" "darkgreen")
- "gray90"]
- t
- nil
- nil)
- (list 'cperl-hash-face
- ["red" "red" nil "Gray80"]
- ["lightyellow2" ("navy" "os2blue" "darkgreen")
- "gray90"]
- t
- t
- nil))))
- ;; Do it the dull way, without choose-color
- (defvar cperl-guessed-background nil
- "Display characteristics as guessed by cperl.")
- ;; (or (fboundp 'x-color-defined-p)
- ;; (defalias 'x-color-defined-p
- ;; (cond ((fboundp 'color-defined-p) 'color-defined-p)
- ;; ;; XEmacs >= 19.12
- ;; ((fboundp 'valid-color-name-p) 'valid-color-name-p)
- ;; ;; XEmacs 19.11
- ;; (t 'x-valid-color-name-p))))
- (cperl-force-face font-lock-constant-face
- "Face for constant and label names")
- (cperl-force-face font-lock-variable-name-face
- "Face for variable names")
- (cperl-force-face font-lock-type-face
- "Face for data types")
- (cperl-force-face cperl-nonoverridable-face
- "Face for data types from another group")
- (cperl-force-face font-lock-comment-face
- "Face for comments")
- (cperl-force-face font-lock-function-name-face
- "Face for function names")
- (cperl-force-face cperl-hash-face
- "Face for hashes")
- (cperl-force-face cperl-array-face
- "Face for arrays")
- ;;(defvar font-lock-constant-face 'font-lock-constant-face)
- ;;(defvar font-lock-variable-name-face 'font-lock-variable-name-face)
- ;;(or (boundp 'font-lock-type-face)
- ;; (defconst font-lock-type-face
- ;; 'font-lock-type-face
- ;; "Face to use for data types."))
- ;;(or (boundp 'cperl-nonoverridable-face)
- ;; (defconst cperl-nonoverridable-face
- ;; 'cperl-nonoverridable-face
- ;; "Face to use for data types from another group."))
- ;;(if (not cperl-xemacs-p) nil
- ;; (or (boundp 'font-lock-comment-face)
- ;; (defconst font-lock-comment-face
- ;; 'font-lock-comment-face
- ;; "Face to use for comments."))
- ;; (or (boundp 'font-lock-keyword-face)
- ;; (defconst font-lock-keyword-face
- ;; 'font-lock-keyword-face
- ;; "Face to use for keywords."))
- ;; (or (boundp 'font-lock-function-name-face)
- ;; (defconst font-lock-function-name-face
- ;; 'font-lock-function-name-face
- ;; "Face to use for function names.")))
- (if (and
- (not (cperl-is-face 'cperl-array-face))
- (cperl-is-face 'font-lock-emphasized-face))
- (copy-face 'font-lock-emphasized-face 'cperl-array-face))
- (if (and
- (not (cperl-is-face 'cperl-hash-face))
- (cperl-is-face 'font-lock-other-emphasized-face))
- (copy-face 'font-lock-other-emphasized-face
- 'cperl-hash-face))
- (if (and
- (not (cperl-is-face 'cperl-nonoverridable-face))
- (cperl-is-face 'font-lock-other-type-face))
- (copy-face 'font-lock-other-type-face
- 'cperl-nonoverridable-face))
- ;;(or (boundp 'cperl-hash-face)
- ;; (defconst cperl-hash-face
- ;; 'cperl-hash-face
- ;; "Face to use for hashes."))
- ;;(or (boundp 'cperl-array-face)
- ;; (defconst cperl-array-face
- ;; 'cperl-array-face
- ;; "Face to use for arrays."))
- ;; Here we try to guess background
- (let ((background
- (if (boundp 'font-lock-background-mode)
- font-lock-background-mode
- 'light))
- (face-list (and (fboundp 'face-list) (face-list))))
-;;;; (fset 'cperl-is-face
-;;;; (cond ((fboundp 'find-face)
-;;;; (symbol-function 'find-face))
-;;;; (face-list
-;;;; (function (lambda (face) (member face face-list))))
-;;;; (t
-;;;; (function (lambda (face) (boundp face))))))
- (defvar cperl-guessed-background
- (if (and (boundp 'font-lock-display-type)
- (eq font-lock-display-type 'grayscale))
- 'gray
- background)
- "Background as guessed by CPerl mode")
- (and (not (cperl-is-face 'font-lock-constant-face))
- (cperl-is-face 'font-lock-reference-face)
- (copy-face 'font-lock-reference-face 'font-lock-constant-face))
- (if (cperl-is-face 'font-lock-type-face) nil
- (copy-face 'default 'font-lock-type-face)
- (cond
- ((eq background 'light)
- (set-face-foreground 'font-lock-type-face
- (if (x-color-defined-p "seagreen")
- "seagreen"
- "sea green")))
- ((eq background 'dark)
- (set-face-foreground 'font-lock-type-face
- (if (x-color-defined-p "os2pink")
- "os2pink"
- "pink")))
- (t
- (set-face-background 'font-lock-type-face "gray90"))))
- (if (cperl-is-face 'cperl-nonoverridable-face)
- nil
- (copy-face 'font-lock-type-face 'cperl-nonoverridable-face)
- (cond
- ((eq background 'light)
- (set-face-foreground 'cperl-nonoverridable-face
- (if (x-color-defined-p "chartreuse3")
- "chartreuse3"
- "chartreuse")))
- ((eq background 'dark)
- (set-face-foreground 'cperl-nonoverridable-face
- (if (x-color-defined-p "orchid1")
- "orchid1"
- "orange")))))
-;;; (if (cperl-is-face 'font-lock-other-emphasized-face) nil
-;;; (copy-face 'bold-italic 'font-lock-other-emphasized-face)
-;;; (cond
-;;; ((eq background 'light)
-;;; (set-face-background 'font-lock-other-emphasized-face
-;;; (if (x-color-defined-p "lightyellow2")
-;;; "lightyellow2"
-;;; (if (x-color-defined-p "lightyellow")
-;;; "lightyellow"
-;;; "light yellow"))))
-;;; ((eq background 'dark)
-;;; (set-face-background 'font-lock-other-emphasized-face
-;;; (if (x-color-defined-p "navy")
-;;; "navy"
-;;; (if (x-color-defined-p "darkgreen")
-;;; "darkgreen"
-;;; "dark green"))))
-;;; (t (set-face-background 'font-lock-other-emphasized-face "gray90"))))
-;;; (if (cperl-is-face 'font-lock-emphasized-face) nil
-;;; (copy-face 'bold 'font-lock-emphasized-face)
-;;; (cond
-;;; ((eq background 'light)
-;;; (set-face-background 'font-lock-emphasized-face
-;;; (if (x-color-defined-p "lightyellow2")
-;;; "lightyellow2"
-;;; "lightyellow")))
-;;; ((eq background 'dark)
-;;; (set-face-background 'font-lock-emphasized-face
-;;; (if (x-color-defined-p "navy")
-;;; "navy"
-;;; (if (x-color-defined-p "darkgreen")
-;;; "darkgreen"
-;;; "dark green"))))
-;;; (t (set-face-background 'font-lock-emphasized-face "gray90"))))
- (if (cperl-is-face 'font-lock-variable-name-face) nil
- (copy-face 'italic 'font-lock-variable-name-face))
- (if (cperl-is-face 'font-lock-constant-face) nil
- (copy-face 'italic 'font-lock-constant-face))))
- (setq cperl-faces-init t))
- (error (message "cperl-init-faces (ignored): %s" errs))))
-
-
-(defun cperl-ps-print-init ()
- "Initialization of `ps-print' components for faces used in CPerl."
- (eval-after-load "ps-print"
- '(setq ps-bold-faces
- ;; font-lock-variable-name-face
- ;; font-lock-constant-face
- (append '(cperl-array-face
- cperl-hash-face)
- ps-bold-faces)
- ps-italic-faces
- ;; font-lock-constant-face
- (append '(cperl-nonoverridable-face
- cperl-hash-face)
- ps-italic-faces)
- ps-underlined-faces
- ;; font-lock-type-face
- (append '(cperl-array-face
- cperl-hash-face
- underline
- cperl-nonoverridable-face)
- ps-underlined-faces))))
-
-(defvar ps-print-face-extension-alist)
-
-(defun cperl-ps-print (&optional file)
- "Pretty-print in CPerl style.
-If optional argument FILE is an empty string, prints to printer, otherwise
-to the file FILE. If FILE is nil, prompts for a file name.
-
-Style of printout regulated by the variable `cperl-ps-print-face-properties'."
- (interactive)
- (or file
- (setq file (read-from-minibuffer
- "Print to file (if empty - to printer): "
- (concat (buffer-file-name) ".ps")
- nil nil 'file-name-history)))
- (or (> (length file) 0)
- (setq file nil))
- (require 'ps-print) ; To get ps-print-face-extension-alist
- (let ((ps-print-color-p t)
- (ps-print-face-extension-alist ps-print-face-extension-alist))
- (cperl-ps-extend-face-list cperl-ps-print-face-properties)
- (ps-print-buffer-with-faces file)))
-
-;;; (defun cperl-ps-print-init ()
-;;; "Initialization of `ps-print' components for faces used in CPerl."
-;;; ;; Guard against old versions
-;;; (defvar ps-underlined-faces nil)
-;;; (defvar ps-bold-faces nil)
-;;; (defvar ps-italic-faces nil)
-;;; (setq ps-bold-faces
-;;; (append '(font-lock-emphasized-face
-;;; cperl-array-face
-;;; font-lock-keyword-face
-;;; font-lock-variable-name-face
-;;; font-lock-constant-face
-;;; font-lock-reference-face
-;;; font-lock-other-emphasized-face
-;;; cperl-hash-face)
-;;; ps-bold-faces))
-;;; (setq ps-italic-faces
-;;; (append '(cperl-nonoverridable-face
-;;; font-lock-constant-face
-;;; font-lock-reference-face
-;;; font-lock-other-emphasized-face
-;;; cperl-hash-face)
-;;; ps-italic-faces))
-;;; (setq ps-underlined-faces
-;;; (append '(font-lock-emphasized-face
-;;; cperl-array-face
-;;; font-lock-other-emphasized-face
-;;; cperl-hash-face
-;;; cperl-nonoverridable-face font-lock-type-face)
-;;; ps-underlined-faces))
-;;; (cons 'font-lock-type-face ps-underlined-faces))
-
-
-(if (cperl-enable-font-lock) (cperl-windowed-init))
-
-(defconst cperl-styles-entries
- '(cperl-indent-level cperl-brace-offset cperl-continued-brace-offset
- cperl-label-offset cperl-extra-newline-before-brace
- cperl-merge-trailing-else
- cperl-continued-statement-offset))
-
-(defconst cperl-style-alist
- '(("CPerl" ; =GNU without extra-newline-before-brace
- (cperl-indent-level . 2)
- (cperl-brace-offset . 0)
- (cperl-continued-brace-offset . 0)
- (cperl-label-offset . -2)
- (cperl-extra-newline-before-brace . nil)
- (cperl-merge-trailing-else . t)
- (cperl-continued-statement-offset . 2))
- ("PerlStyle" ; CPerl with 4 as indent
- (cperl-indent-level . 4)
- (cperl-brace-offset . 0)
- (cperl-continued-brace-offset . 0)
- (cperl-label-offset . -4)
- (cperl-extra-newline-before-brace . nil)
- (cperl-merge-trailing-else . t)
- (cperl-continued-statement-offset . 4))
- ("GNU"
- (cperl-indent-level . 2)
- (cperl-brace-offset . 0)
- (cperl-continued-brace-offset . 0)
- (cperl-label-offset . -2)
- (cperl-extra-newline-before-brace . t)
- (cperl-merge-trailing-else . nil)
- (cperl-continued-statement-offset . 2))
- ("K&R"
- (cperl-indent-level . 5)
- (cperl-brace-offset . 0)
- (cperl-continued-brace-offset . -5)
- (cperl-label-offset . -5)
- ;;(cperl-extra-newline-before-brace . nil) ; ???
- (cperl-merge-trailing-else . nil)
- (cperl-continued-statement-offset . 5))
- ("BSD"
- (cperl-indent-level . 4)
- (cperl-brace-offset . 0)
- (cperl-continued-brace-offset . -4)
- (cperl-label-offset . -4)
- ;;(cperl-extra-newline-before-brace . nil) ; ???
- (cperl-continued-statement-offset . 4))
- ("C++"
- (cperl-indent-level . 4)
- (cperl-brace-offset . 0)
- (cperl-continued-brace-offset . -4)
- (cperl-label-offset . -4)
- (cperl-continued-statement-offset . 4)
- (cperl-merge-trailing-else . nil)
- (cperl-extra-newline-before-brace . t))
- ("Current")
- ("Whitesmith"
- (cperl-indent-level . 4)
- (cperl-brace-offset . 0)
- (cperl-continued-brace-offset . 0)
- (cperl-label-offset . -4)
- ;;(cperl-extra-newline-before-brace . nil) ; ???
- (cperl-continued-statement-offset . 4)))
- "(Experimental) list of variables to set to get a particular indentation style.
-Should be used via `cperl-set-style' or via Perl menu.")
-
-(defun cperl-set-style (style)
- "Set CPerl mode variables to use one of several different indentation styles.
-The arguments are a string representing the desired style.
-The list of styles is in `cperl-style-alist', available styles
-are GNU, K&R, BSD, C++ and Whitesmith.
-
-The current value of style is memorized (unless there is a memorized
-data already), may be restored by `cperl-set-style-back'.
-
-Chosing \"Current\" style will not change style, so this may be used for
-side-effect of memorizing only."
- (interactive
- (let ((list (mapcar (function (lambda (elt) (list (car elt))))
- cperl-style-alist)))
- (list (completing-read "Enter style: " list nil 'insist))))
- (or cperl-old-style
- (setq cperl-old-style
- (mapcar (function
- (lambda (name)
- (cons name (eval name))))
- cperl-styles-entries)))
- (let ((style (cdr (assoc style cperl-style-alist))) setting str sym)
- (while style
- (setq setting (car style) style (cdr style))
- (set (car setting) (cdr setting)))))
-
-(defun cperl-set-style-back ()
- "Restore a style memorised by `cperl-set-style'."
- (interactive)
- (or cperl-old-style (error "The style was not changed"))
- (let (setting)
- (while cperl-old-style
- (setq setting (car cperl-old-style)
- cperl-old-style (cdr cperl-old-style))
- (set (car setting) (cdr setting)))))
-
-(defun cperl-check-syntax ()
- (interactive)
- (require 'mode-compile)
- (let ((perl-dbg-flags (concat cperl-extra-perl-args " -wc")))
- (eval '(mode-compile)))) ; Avoid a warning
-
-(defun cperl-info-buffer (type)
- ;; Returns buffer with documentation. Creates if missing.
- ;; If TYPE, this vars buffer.
- ;; Special care is taken to not stomp over an existing info buffer
- (let* ((bname (if type "*info-perl-var*" "*info-perl*"))
- (info (get-buffer bname))
- (oldbuf (get-buffer "*info*")))
- (if info info
- (save-window-excursion
- ;; Get Info running
- (require 'info)
- (cond (oldbuf
- (set-buffer oldbuf)
- (rename-buffer "*info-perl-tmp*")))
- (save-window-excursion
- (info))
- (Info-find-node cperl-info-page (if type "perlvar" "perlfunc"))
- (set-buffer "*info*")
- (rename-buffer bname)
- (cond (oldbuf
- (set-buffer "*info-perl-tmp*")
- (rename-buffer "*info*")
- (set-buffer bname)))
- (make-local-variable 'window-min-height)
- (setq window-min-height 2)
- (current-buffer)))))
-
-(defun cperl-word-at-point (&optional p)
- "Return the word at point or at P."
- (save-excursion
- (if p (goto-char p))
- (or (cperl-word-at-point-hard)
- (progn
- (require 'etags)
- (funcall (or (and (boundp 'find-tag-default-function)
- find-tag-default-function)
- (get major-mode 'find-tag-default-function)
- ;; XEmacs 19.12 has `find-tag-default-hook'; it is
- ;; automatically used within `find-tag-default':
- 'find-tag-default))))))
-
-(defun cperl-info-on-command (command)
- "Show documentation for Perl command COMMAND in other window.
-If perl-info buffer is shown in some frame, uses this frame.
-Customized by setting variables `cperl-shrink-wrap-info-frame',
-`cperl-max-help-size'."
- (interactive
- (let* ((default (cperl-word-at-point))
- (read (read-string
- (format "Find doc for Perl function (default %s): "
- default))))
- (list (if (equal read "")
- default
- read))))
-
- (let ((buffer (current-buffer))
- (cmd-desc (concat "^" (regexp-quote command) "[^a-zA-Z_0-9]")) ; "tr///"
- pos isvar height iniheight frheight buf win fr1 fr2 iniwin not-loner
- max-height char-height buf-list)
- (if (string-match "^-[a-zA-Z]$" command)
- (setq cmd-desc "^-X[ \t\n]"))
- (setq isvar (string-match "^[$@%]" command)
- buf (cperl-info-buffer isvar)
- iniwin (selected-window)
- fr1 (window-frame iniwin))
- (set-buffer buf)
- (goto-char (point-min))
- (or isvar
- (progn (re-search-forward "^-X[ \t\n]")
- (forward-line -1)))
- (if (re-search-forward cmd-desc nil t)
- (progn
- ;; Go back to beginning of the group (ex, for qq)
- (if (re-search-backward "^[ \t\n\f]")
- (forward-line 1))
- (beginning-of-line)
- ;; Get some of
- (setq pos (point)
- buf-list (list buf "*info-perl-var*" "*info-perl*"))
- (while (and (not win) buf-list)
- (setq win (get-buffer-window (car buf-list) t))
- (setq buf-list (cdr buf-list)))
- (or (not win)
- (eq (window-buffer win) buf)
- (set-window-buffer win buf))
- (and win (setq fr2 (window-frame win)))
- (if (or (not fr2) (eq fr1 fr2))
- (pop-to-buffer buf)
- (special-display-popup-frame buf) ; Make it visible
- (select-window win))
- (goto-char pos) ; Needed (?!).
- ;; Resize
- (setq iniheight (window-height)
- frheight (frame-height)
- not-loner (< iniheight (1- frheight))) ; Are not alone
- (cond ((if not-loner cperl-max-help-size
- cperl-shrink-wrap-info-frame)
- (setq height
- (+ 2
- (count-lines
- pos
- (save-excursion
- (if (re-search-forward
- "^[ \t][^\n]*\n+\\([^ \t\n\f]\\|\\'\\)" nil t)
- (match-beginning 0) (point-max)))))
- max-height
- (if not-loner
- (/ (* (- frheight 3) cperl-max-help-size) 100)
- (setq char-height (frame-char-height))
- ;; Non-functioning under OS/2:
- (if (eq char-height 1) (setq char-height 18))
- ;; Title, menubar, + 2 for slack
- (- (/ (x-display-pixel-height) char-height) 4)))
- (if (> height max-height) (setq height max-height))
- ;;(message "was %s doing %s" iniheight height)
- (if not-loner
- (enlarge-window (- height iniheight))
- (set-frame-height (window-frame win) (1+ height)))))
- (set-window-start (selected-window) pos))
- (message "No entry for %s found." command))
- ;;(pop-to-buffer buffer)
- (select-window iniwin)))
-
-(defun cperl-info-on-current-command ()
- "Show documentation for Perl command at point in other window."
- (interactive)
- (cperl-info-on-command (cperl-word-at-point)))
-
-(defun cperl-imenu-info-imenu-search ()
- (if (looking-at "^-X[ \t\n]") nil
- (re-search-backward
- "^\n\\([-a-zA-Z_]+\\)[ \t\n]")
- (forward-line 1)))
-
-(defun cperl-imenu-info-imenu-name ()
- (buffer-substring
- (match-beginning 1) (match-end 1)))
-
-(defun cperl-imenu-on-info ()
- "Shows imenu for Perl Info Buffer.
-Opens Perl Info buffer if needed."
- (interactive)
- (let* ((buffer (current-buffer))
- imenu-create-index-function
- imenu-prev-index-position-function
- imenu-extract-index-name-function
- (index-item (save-restriction
- (save-window-excursion
- (set-buffer (cperl-info-buffer nil))
- (setq imenu-create-index-function
- 'imenu-default-create-index-function
- imenu-prev-index-position-function
- 'cperl-imenu-info-imenu-search
- imenu-extract-index-name-function
- 'cperl-imenu-info-imenu-name)
- (imenu-choose-buffer-index)))))
- (and index-item
- (progn
- (push-mark)
- (pop-to-buffer "*info-perl*")
- (cond
- ((markerp (cdr index-item))
- (goto-char (marker-position (cdr index-item))))
- (t
- (goto-char (cdr index-item))))
- (set-window-start (selected-window) (point))
- (pop-to-buffer buffer)))))
-
-(defun cperl-lineup (beg end &optional step minshift)
- "Lineup construction in a region.
-Beginning of region should be at the start of a construction.
-All first occurrences of this construction in the lines that are
-partially contained in the region are lined up at the same column.
-
-MINSHIFT is the minimal amount of space to insert before the construction.
-STEP is the tabwidth to position constructions.
-If STEP is nil, `cperl-lineup-step' will be used
-\(or `cperl-indent-level', if `cperl-lineup-step' is `nil').
-Will not move the position at the start to the left."
- (interactive "r")
- (let (search col tcol seen b)
- (save-excursion
- (goto-char end)
- (end-of-line)
- (setq end (point-marker))
- (goto-char beg)
- (skip-chars-forward " \t\f")
- (setq beg (point-marker))
- (indent-region beg end nil)
- (goto-char beg)
- (setq col (current-column))
- (if (looking-at "[a-zA-Z0-9_]")
- (if (looking-at "\\<[a-zA-Z0-9_]+\\>")
- (setq search
- (concat "\\<"
- (regexp-quote
- (buffer-substring (match-beginning 0)
- (match-end 0))) "\\>"))
- (error "Cannot line up in a middle of the word"))
- (if (looking-at "$")
- (error "Cannot line up end of line"))
- (setq search (regexp-quote (char-to-string (following-char)))))
- (setq step (or step cperl-lineup-step cperl-indent-level))
- (or minshift (setq minshift 1))
- (while (progn
- (beginning-of-line 2)
- (and (< (point) end)
- (re-search-forward search end t)
- (goto-char (match-beginning 0))))
- (setq tcol (current-column) seen t)
- (if (> tcol col) (setq col tcol)))
- (or seen
- (error "The construction to line up occurred only once"))
- (goto-char beg)
- (setq col (+ col minshift))
- (if (/= (% col step) 0) (setq step (* step (1+ (/ col step)))))
- (while
- (progn
- (cperl-make-indent col)
- (beginning-of-line 2)
- (and (< (point) end)
- (re-search-forward search end t)
- (goto-char (match-beginning 0)))))))) ; No body
-
-(defun cperl-etags (&optional add all files) ;; NOT USED???
- "Run etags with appropriate options for Perl files.
-If optional argument ALL is `recursive', will process Perl files
-in subdirectories too."
- (interactive)
- (let ((cmd "etags")
- (args '("-l" "none" "-r"
- ;; 1=fullname 2=package? 3=name 4=proto? 5=attrs? (VERY APPROX!)
- "/\\<sub[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)\\)[ \\t]*\\(([^()]*)[ \t]*\\)?\\([ \t]*:[^#{;]*\\)?\\([{#]\\|$\\)/\\3/"
- "-r"
- "/\\<package[ \\t]+\\(\\([a-zA-Z0-9:_]*::\\)?\\([a-zA-Z0-9_]+\\)\\)[ \\t]*\\([#;]\\|$\\)/\\1/"
- "-r"
- "/\\<\\(package\\)[ \\t]*;/\\1;/"))
- res)
- (if add (setq args (cons "-a" args)))
- (or files (setq files (list buffer-file-name)))
- (cond
- ((eq all 'recursive)
- ;;(error "Not implemented: recursive")
- (setq args (append (list "-e"
- "sub wanted {push @ARGV, $File::Find::name if /\\.[pP][Llm]$/}
- use File::Find;
- find(\\&wanted, '.');
- exec @ARGV;"
- cmd) args)
- cmd "perl"))
- (all
- ;;(error "Not implemented: all")
- (setq args (append (list "-e"
- "push @ARGV, <*.PL *.pl *.pm>;
- exec @ARGV;"
- cmd) args)
- cmd "perl"))
- (t
- (setq args (append args files))))
- (setq res (apply 'call-process cmd nil nil nil args))
- (or (eq res 0)
- (message "etags returned \"%s\"" res))))
-
-(defun cperl-toggle-auto-newline ()
- "Toggle the state of `cperl-auto-newline'."
- (interactive)
- (setq cperl-auto-newline (not cperl-auto-newline))
- (message "Newlines will %sbe auto-inserted now."
- (if cperl-auto-newline "" "not ")))
-
-(defun cperl-toggle-abbrev ()
- "Toggle the state of automatic keyword expansion in CPerl mode."
- (interactive)
- (abbrev-mode (if abbrev-mode 0 1))
- (message "Perl control structure will %sbe auto-inserted now."
- (if abbrev-mode "" "not ")))
-
-
-(defun cperl-toggle-electric ()
- "Toggle the state of parentheses doubling in CPerl mode."
- (interactive)
- (setq cperl-electric-parens (if (cperl-val 'cperl-electric-parens) 'null t))
- (message "Parentheses will %sbe auto-doubled now."
- (if (cperl-val 'cperl-electric-parens) "" "not ")))
-
-(defun cperl-toggle-autohelp ()
- "Toggle the state of Auto-Help on Perl constructs (put in the message area).
-Delay of auto-help controlled by `cperl-lazy-help-time'."
- (interactive)
- (if (fboundp 'run-with-idle-timer)
- (progn
- (if cperl-lazy-installed
- (cperl-lazy-unstall)
- (cperl-lazy-install))
- (message "Perl help messages will %sbe automatically shown now."
- (if cperl-lazy-installed "" "not ")))
- (message "Cannot automatically show Perl help messages - run-with-idle-timer missing.")))
-
-(defun cperl-toggle-construct-fix ()
- "Toggle whether `indent-region'/`indent-sexp' fix whitespace too."
- (interactive)
- (setq cperl-indent-region-fix-constructs
- (if cperl-indent-region-fix-constructs
- nil
- 1))
- (message "indent-region/indent-sexp will %sbe automatically fix whitespace."
- (if cperl-indent-region-fix-constructs "" "not ")))
-
-(defun cperl-toggle-set-debug-unwind (arg &optional backtrace)
- "Toggle (or, with numeric argument, set) debugging state of syntaxification.
-Nonpositive numeric argument disables debugging messages. The message
-summarizes which regions it was decided to rescan for syntactic constructs.
-
-The message looks like this:
-
- Syxify req=123..138 actual=101..146 done-to: 112=>146 statepos: 73=>117
-
-Numbers are character positions in the buffer. REQ provides the range to
-rescan requested by `font-lock'. ACTUAL is the range actually resyntaxified;
-for correct operation it should start and end outside any special syntactic
-construct. DONE-TO and STATEPOS indicate changes to internal caches maintained
-by CPerl."
- (interactive "P")
- (or arg
- (setq arg (if (eq cperl-syntaxify-by-font-lock
- (if backtrace 'backtrace 'message)) 0 1)))
- (setq arg (if (> arg 0) (if backtrace 'backtrace 'message) t))
- (setq cperl-syntaxify-by-font-lock arg)
- (message "Debugging messages of syntax unwind %sabled."
- (if (eq arg t) "dis" "en")))
-
-;;;; Tags file creation.
-
-(defvar cperl-tmp-buffer " *cperl-tmp*")
-
-(defun cperl-setup-tmp-buf ()
- (set-buffer (get-buffer-create cperl-tmp-buffer))
- (set-syntax-table cperl-mode-syntax-table)
- (buffer-disable-undo)
- (auto-fill-mode 0)
- (if cperl-use-syntax-table-text-property-for-tags
- (progn
- (make-local-variable 'parse-sexp-lookup-properties)
- ;; Do not introduce variable if not needed, we check it!
- (set 'parse-sexp-lookup-properties t))))
-
-(defun cperl-xsub-scan ()
- (require 'cl)
- (require 'imenu)
- (let ((index-alist '())
- (prev-pos 0) index index1 name package prefix)
- (goto-char (point-min))
- (if noninteractive
- (message "Scanning XSUB for index")
- (imenu-progress-message prev-pos 0))
- ;; Search for the function
- (progn ;;save-match-data
- (while (re-search-forward
- "^\\([ \t]*MODULE\\>[^\n]*\\<PACKAGE[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9:]*\\)\\>\\|\\([a-zA-Z_][a-zA-Z_0-9]*\\)(\\|[ \t]*BOOT:\\)"
- nil t)
- (or noninteractive
- (imenu-progress-message prev-pos))
- (cond
- ((match-beginning 2) ; SECTION
- (setq package (buffer-substring (match-beginning 2) (match-end 2)))
- (goto-char (match-beginning 0))
- (skip-chars-forward " \t")
- (forward-char 1)
- (if (looking-at "[^\n]*\\<PREFIX[ \t]*=[ \t]*\\([a-zA-Z_][a-zA-Z_0-9]*\\)\\>")
- (setq prefix (buffer-substring (match-beginning 1) (match-end 1)))
- (setq prefix nil)))
- ((not package) nil) ; C language section
- ((match-beginning 3) ; XSUB
- (goto-char (1+ (match-beginning 3)))
- (setq index (imenu-example--name-and-position))
- (setq name (buffer-substring (match-beginning 3) (match-end 3)))
- (if (and prefix (string-match (concat "^" prefix) name))
- (setq name (substring name (length prefix))))
- (cond ((string-match "::" name) nil)
- (t
- (setq index1 (cons (concat package "::" name) (cdr index)))
- (push index1 index-alist)))
- (setcar index name)
- (push index index-alist))
- (t ; BOOT: section
- ;; (beginning-of-line)
- (setq index (imenu-example--name-and-position))
- (setcar index (concat package "::BOOT:"))
- (push index index-alist)))))
- (or noninteractive
- (imenu-progress-message prev-pos 100))
- index-alist))
-
-(defvar cperl-unreadable-ok nil)
-
-(defun cperl-find-tags (ifile xs topdir)
- (let ((b (get-buffer cperl-tmp-buffer)) ind lst elt pos ret rel
- (cperl-pod-here-fontify nil) f file)
- (save-excursion
- (if b (set-buffer b)
- (cperl-setup-tmp-buf))
- (erase-buffer)
- (condition-case err
- (setq file (car (insert-file-contents ifile)))
- (error (if cperl-unreadable-ok nil
- (if (y-or-n-p
- (format "File %s unreadable. Continue? " ifile))
- (setq cperl-unreadable-ok t)
- (error "Aborting: unreadable file %s" ifile)))))
- (if (not file)
- (message "Unreadable file %s" ifile)
- (message "Scanning file %s ..." file)
- (if (and cperl-use-syntax-table-text-property-for-tags
- (not xs))
- (condition-case err ; after __END__ may have garbage
- (cperl-find-pods-heres nil nil noninteractive)
- (error (message "While scanning for syntax: %s" err))))
- (if xs
- (setq lst (cperl-xsub-scan))
- (setq ind (cperl-imenu--create-perl-index))
- (setq lst (cdr (assoc "+Unsorted List+..." ind))))
- (setq lst
- (mapcar
- (function
- (lambda (elt)
- (cond ((string-match "^[_a-zA-Z]" (car elt))
- (goto-char (cdr elt))
- (beginning-of-line) ; pos should be of the start of the line
- (list (car elt)
- (point)
- (1+ (count-lines 1 (point))) ; 1+ since at beg-o-l
- (buffer-substring (progn
- (goto-char (cdr elt))
- ;; After name now...
- (or (eolp) (forward-char 1))
- (point))
- (progn
- (beginning-of-line)
- (point))))))))
- lst))
- (erase-buffer)
- (while lst
- (setq elt (car lst) lst (cdr lst))
- (if elt
- (progn
- (insert (elt elt 3)
- 127
- (if (string-match "^package " (car elt))
- (substring (car elt) 8)
- (car elt) )
- 1
- (number-to-string (elt elt 2)) ; Line
- ","
- (number-to-string (1- (elt elt 1))) ; Char pos 0-based
- "\n")
- (if (and (string-match "^[_a-zA-Z]+::" (car elt))
- (string-match "^sub[ \t]+\\([_a-zA-Z]+\\)[^:_a-zA-Z]"
- (elt elt 3)))
- ;; Need to insert the name without package as well
- (setq lst (cons (cons (substring (elt elt 3)
- (match-beginning 1)
- (match-end 1))
- (cdr elt))
- lst))))))
- (setq pos (point))
- (goto-char 1)
- (setq rel file)
- ;; On case-preserving filesystems (EMX on OS/2) case might be encoded in properties
- (set-text-properties 0 (length rel) nil rel)
- (and (equal topdir (substring rel 0 (length topdir)))
- (setq rel (substring file (length topdir))))
- (insert "\f\n" rel "," (number-to-string (1- pos)) "\n")
- (setq ret (buffer-substring 1 (point-max)))
- (erase-buffer)
- (or noninteractive
- (message "Scanning file %s finished" file))
- ret))))
-
-(defun cperl-add-tags-recurse-noxs ()
- "Add to TAGS data for \"pure\" Perl files in the current directory and kids.
-Use as
- emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
- -f cperl-add-tags-recurse-noxs
-"
- (cperl-write-tags nil nil t t nil t))
-
-(defun cperl-add-tags-recurse-noxs-fullpath ()
- "Add to TAGS data for \"pure\" Perl in the current directory and kids.
-Writes down fullpath, so TAGS is relocatable (but if the build directory
-is relocated, the file TAGS inside it breaks). Use as
- emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
- -f cperl-add-tags-recurse-noxs-fullpath
-"
- (cperl-write-tags nil nil t t nil t ""))
-
-(defun cperl-add-tags-recurse ()
- "Add to TAGS file data for Perl files in the current directory and kids.
-Use as
- emacs -batch -q -no-site-file -l emacs/cperl-mode.el \
- -f cperl-add-tags-recurse
-"
- (cperl-write-tags nil nil t t))
-
-(defun cperl-write-tags (&optional file erase recurse dir inbuffer noxs topdir)
- ;; If INBUFFER, do not select buffer, and do not save
- ;; If ERASE is `ignore', do not erase, and do not try to delete old info.
- (require 'etags)
- (if file nil
- (setq file (if dir default-directory (buffer-file-name)))
- (if (and (not dir) (buffer-modified-p)) (error "Save buffer first!")))
- (or topdir
- (setq topdir default-directory))
- (let ((tags-file-name "TAGS")
- (case-fold-search (eq system-type 'emx))
- xs rel tm)
- (save-excursion
- (cond (inbuffer nil) ; Already there
- ((file-exists-p tags-file-name)
- (if cperl-xemacs-p
- (visit-tags-table-buffer)
- (visit-tags-table-buffer tags-file-name)))
- (t (set-buffer (find-file-noselect tags-file-name))))
- (cond
- (dir
- (cond ((eq erase 'ignore))
- (erase
- (erase-buffer)
- (setq erase 'ignore)))
- (let ((files
- (condition-case err
- (directory-files file t
- (if recurse nil cperl-scan-files-regexp)
- t)
- (error
- (if cperl-unreadable-ok nil
- (if (y-or-n-p
- (format "Directory %s unreadable. Continue? " file))
- (setq cperl-unreadable-ok t
- tm nil) ; Return empty list
- (error "Aborting: unreadable directory %s" file)))))))
- (mapcar (function
- (lambda (file)
- (cond
- ((string-match cperl-noscan-files-regexp file)
- nil)
- ((not (file-directory-p file))
- (if (string-match cperl-scan-files-regexp file)
- (cperl-write-tags file erase recurse nil t noxs topdir)))
- ((not recurse) nil)
- (t (cperl-write-tags file erase recurse t t noxs topdir)))))
- files)))
- (t
- (setq xs (string-match "\\.xs$" file))
- (if (not (and xs noxs))
- (progn
- (cond ((eq erase 'ignore) (goto-char (point-max)))
- (erase (erase-buffer))
- (t
- (goto-char 1)
- (setq rel file)
- ;; On case-preserving filesystems (EMX on OS/2) case might be encoded in properties
- (set-text-properties 0 (length rel) nil rel)
- (and (equal topdir (substring rel 0 (length topdir)))
- (setq rel (substring file (length topdir))))
- (if (search-forward (concat "\f\n" rel ",") nil t)
- (progn
- (search-backward "\f\n")
- (delete-region (point)
- (save-excursion
- (forward-char 1)
- (if (search-forward "\f\n"
- nil 'toend)
- (- (point) 2)
- (point-max)))))
- (goto-char (point-max)))))
- (insert (cperl-find-tags file xs topdir))))))
- (if inbuffer nil ; Delegate to the caller
- (save-buffer 0) ; No backup
- (if (fboundp 'initialize-new-tags-table) ; Do we need something special in XEmacs?
- (initialize-new-tags-table))))))
-
-(defvar cperl-tags-hier-regexp-list
- (concat
- "^\\("
- "\\(package\\)\\>"
- "\\|"
- "sub\\>[^\n]+::"
- "\\|"
- "[a-zA-Z_][a-zA-Z_0-9:]*(\C-?[^\n]+::" ; XSUB?
- "\\|"
- "[ \t]*BOOT:\C-?[^\n]+::" ; BOOT section
- "\\)"))
-
-(defvar cperl-hierarchy '(() ())
- "Global hierarchy of classes.")
-
-(defun cperl-tags-hier-fill ()
- ;; Suppose we are in a tag table cooked by cperl.
- (goto-char 1)
- (let (type pack name pos line chunk ord cons1 file str info fileind)
- (while (re-search-forward cperl-tags-hier-regexp-list nil t)
- (setq pos (match-beginning 0)
- pack (match-beginning 2))
- (beginning-of-line)
- (if (looking-at (concat
- "\\([^\n]+\\)"
- "\C-?"
- "\\([^\n]+\\)"
- "\C-a"
- "\\([0-9]+\\)"
- ","
- "\\([0-9]+\\)"))
- (progn
- (setq ;;str (buffer-substring (match-beginning 1) (match-end 1))
- name (buffer-substring (match-beginning 2) (match-end 2))
- ;;pos (buffer-substring (match-beginning 3) (match-end 3))
- line (buffer-substring (match-beginning 3) (match-end 3))
- ord (if pack 1 0)
- file (file-of-tag)
- fileind (format "%s:%s" file line)
- ;; Moves to beginning of the next line:
- info (cperl-etags-snarf-tag file line))
- ;; Move back
- (forward-char -1)
- ;; Make new member of hierarchy name ==> file ==> pos if needed
- (if (setq cons1 (assoc name (nth ord cperl-hierarchy)))
- ;; Name known
- (setcdr cons1 (cons (cons fileind (vector file info))
- (cdr cons1)))
- ;; First occurrence of the name, start alist
- (setq cons1 (cons name (list (cons fileind (vector file info)))))
- (if pack
- (setcar (cdr cperl-hierarchy)
- (cons cons1 (nth 1 cperl-hierarchy)))
- (setcar cperl-hierarchy
- (cons cons1 (car cperl-hierarchy)))))))
- (end-of-line))))
-
-(defun cperl-tags-hier-init (&optional update)
- "Show hierarchical menu of classes and methods.
-Finds info about classes by a scan of loaded TAGS files.
-Supposes that the TAGS files contain fully qualified function names.
-One may build such TAGS files from CPerl mode menu."
- (interactive)
- (require 'etags)
- (require 'imenu)
- (if (or update (null (nth 2 cperl-hierarchy)))
- (let ((remover (function (lambda (elt) ; (name (file1...) (file2..))
- (or (nthcdr 2 elt)
- ;; Only in one file
- (setcdr elt (cdr (nth 1 elt)))))))
- pack name cons1 to l1 l2 l3 l4 b)
- ;; (setq cperl-hierarchy '(() () ())) ; Would write into '() later!
- (setq cperl-hierarchy (list l1 l2 l3))
- (if cperl-xemacs-p ; Not checked
- (progn
- (or tags-file-name
- ;; Does this work in XEmacs?
- (call-interactively 'visit-tags-table))
- (message "Updating list of classes...")
- (set-buffer (get-file-buffer tags-file-name))
- (cperl-tags-hier-fill))
- (or tags-table-list
- (call-interactively 'visit-tags-table))
- (mapcar
- (function
- (lambda (tagsfile)
- (message "Updating list of classes... %s" tagsfile)
- (set-buffer (get-file-buffer tagsfile))
- (cperl-tags-hier-fill)))
- tags-table-list)
- (message "Updating list of classes... postprocessing..."))
- (mapcar remover (car cperl-hierarchy))
- (mapcar remover (nth 1 cperl-hierarchy))
- (setq to (list nil (cons "Packages: " (nth 1 cperl-hierarchy))
- (cons "Methods: " (car cperl-hierarchy))))
- (cperl-tags-treeify to 1)
- (setcar (nthcdr 2 cperl-hierarchy)
- (cperl-menu-to-keymap (cons '("+++UPDATE+++" . -999) (cdr to))))
- (message "Updating list of classes: done, requesting display...")
- ;;(cperl-imenu-addback (nth 2 cperl-hierarchy))
- ))
- (or (nth 2 cperl-hierarchy)
- (error "No items found"))
- (setq update
-;;; (imenu-choose-buffer-index "Packages: " (nth 2 cperl-hierarchy))
- (if (if (fboundp 'display-popup-menus-p)
- (let ((f 'display-popup-menus-p))
- (funcall f))
- window-system)
- (x-popup-menu t (nth 2 cperl-hierarchy))
- (require 'tmm)
- (tmm-prompt (nth 2 cperl-hierarchy))))
- (if (and update (listp update))
- (progn (while (cdr update) (setq update (cdr update)))
- (setq update (car update)))) ; Get the last from the list
- (if (vectorp update)
- (progn
- (find-file (elt update 0))
- (cperl-etags-goto-tag-location (elt update 1))))
- (if (eq update -999) (cperl-tags-hier-init t)))
-
-(defun cperl-tags-treeify (to level)
- ;; cadr of `to' is read-write. On start it is a cons
- (let* ((regexp (concat "^\\(" (mapconcat
- 'identity
- (make-list level "[_a-zA-Z0-9]+")
- "::")
- "\\)\\(::\\)?"))
- (packages (cdr (nth 1 to)))
- (methods (cdr (nth 2 to)))
- l1 head tail cons1 cons2 ord writeto packs recurse
- root-packages root-functions ms many_ms same_name ps
- (move-deeper
- (function
- (lambda (elt)
- (cond ((and (string-match regexp (car elt))
- (or (eq ord 1) (match-end 2)))
- (setq head (substring (car elt) 0 (match-end 1))
- tail (if (match-end 2) (substring (car elt)
- (match-end 2)))
- recurse t)
- (if (setq cons1 (assoc head writeto)) nil
- ;; Need to init new head
- (setcdr writeto (cons (list head (list "Packages: ")
- (list "Methods: "))
- (cdr writeto)))
- (setq cons1 (nth 1 writeto)))
- (setq cons2 (nth ord cons1)) ; Either packs or meths
- (setcdr cons2 (cons elt (cdr cons2))))
- ((eq ord 2)
- (setq root-functions (cons elt root-functions)))
- (t
- (setq root-packages (cons elt root-packages))))))))
- (setcdr to l1) ; Init to dynamic space
- (setq writeto to)
- (setq ord 1)
- (mapcar move-deeper packages)
- (setq ord 2)
- (mapcar move-deeper methods)
- (if recurse
- (mapcar (function (lambda (elt)
- (cperl-tags-treeify elt (1+ level))))
- (cdr to)))
- ;;Now clean up leaders with one child only
- (mapcar (function (lambda (elt)
- (if (not (and (listp (cdr elt))
- (eq (length elt) 2))) nil
- (setcar elt (car (nth 1 elt)))
- (setcdr elt (cdr (nth 1 elt))))))
- (cdr to))
- ;; Sort the roots of subtrees
- (if (default-value 'imenu-sort-function)
- (setcdr to
- (sort (cdr to) (default-value 'imenu-sort-function))))
- ;; Now add back functions removed from display
- (mapcar (function (lambda (elt)
- (setcdr to (cons elt (cdr to)))))
- (if (default-value 'imenu-sort-function)
- (nreverse
- (sort root-functions (default-value 'imenu-sort-function)))
- root-functions))
- ;; Now add back packages removed from display
- (mapcar (function (lambda (elt)
- (setcdr to (cons (cons (concat "package " (car elt))
- (cdr elt))
- (cdr to)))))
- (if (default-value 'imenu-sort-function)
- (nreverse
- (sort root-packages (default-value 'imenu-sort-function)))
- root-packages))))
-
-;;;(x-popup-menu t
-;;; '(keymap "Name1"
-;;; ("Ret1" "aa")
-;;; ("Head1" "ab"
-;;; keymap "Name2"
-;;; ("Tail1" "x") ("Tail2" "y"))))
-
-(defun cperl-list-fold (list name limit)
- (let (list1 list2 elt1 (num 0))
- (if (<= (length list) limit) list
- (setq list1 nil list2 nil)
- (while list
- (setq num (1+ num)
- elt1 (car list)
- list (cdr list))
- (if (<= num imenu-max-items)
- (setq list2 (cons elt1 list2))
- (setq list1 (cons (cons name
- (nreverse list2))
- list1)
- list2 (list elt1)
- num 1)))
- (nreverse (cons (cons name
- (nreverse list2))
- list1)))))
-
-(defun cperl-menu-to-keymap (menu &optional name)
- (let (list)
- (cons 'keymap
- (mapcar
- (function
- (lambda (elt)
- (cond ((listp (cdr elt))
- (setq list (cperl-list-fold
- (cdr elt) (car elt) imenu-max-items))
- (cons nil
- (cons (car elt)
- (cperl-menu-to-keymap list))))
- (t
- (list (cdr elt) (car elt) t))))) ; t is needed in 19.34
- (cperl-list-fold menu "Root" imenu-max-items)))))
-
-\f
-(defvar cperl-bad-style-regexp
- (mapconcat 'identity
- '("[^-\n\t <>=+!.&|(*/'`\"#^][-=+<>!|&^]" ; char sign
- "[-<>=+^&|]+[^- \t\n=+<>~]") ; sign+ char
- "\\|")
- "Finds places such that insertion of a whitespace may help a lot.")
-
-(defvar cperl-not-bad-style-regexp
- (mapconcat
- 'identity
- '("[^-\t <>=+]\\(--\\|\\+\\+\\)" ; var-- var++
- "[a-zA-Z0-9_][|&][a-zA-Z0-9_$]" ; abc|def abc&def are often used.
- "&[(a-zA-Z0-9_$]" ; &subroutine &(var->field)
- "<\\$?\\sw+\\(\\.\\(\\sw\\|_\\)+\\)?>" ; <IN> <stdin.h>
- "-[a-zA-Z][ \t]+[_$\"'`a-zA-Z]" ; -f file, -t STDIN
- "-[0-9]" ; -5
- "\\+\\+" ; ++var
- "--" ; --var
- ".->" ; a->b
- "->" ; a SPACE ->b
- "\\[-" ; a[-1]
- "\\\\[&$@*\\\\]" ; \&func
- "^=" ; =head
- "\\$." ; $|
- "<<[a-zA-Z_'\"`]" ; <<FOO, <<'FOO'
- "||"
- "&&"
- "[CBIXSLFZ]<\\(\\sw\\|\\s \\|\\s_\\|[\n]\\)*>" ; C<code like text>
- "-[a-zA-Z_0-9]+[ \t]*=>" ; -option => value
- ;; Unaddressed trouble spots: = -abc, f(56, -abc) --- specialcased below
- ;;"[*/+-|&<.]+="
- )
- "\\|")
- "If matches at the start of match found by `my-bad-c-style-regexp',
-insertion of a whitespace will not help.")
-
-(defvar found-bad)
-
-(defun cperl-find-bad-style ()
- "Find places in the buffer where insertion of a whitespace may help.
-Prompts user for insertion of spaces.
-Currently it is tuned to C and Perl syntax."
- (interactive)
- (let (found-bad (p (point)))
- (setq last-nonmenu-event 13) ; To disable popup
- (goto-char (point-min))
- (map-y-or-n-p "Insert space here? "
- (lambda (arg) (insert " "))
- 'cperl-next-bad-style
- '("location" "locations" "insert a space into")
- '((?\C-r (lambda (arg)
- (let ((buffer-quit-function
- 'exit-recursive-edit))
- (message "Exit with Esc Esc")
- (recursive-edit)
- t)) ; Consider acted upon
- "edit, exit with Esc Esc")
- (?e (lambda (arg)
- (let ((buffer-quit-function
- 'exit-recursive-edit))
- (message "Exit with Esc Esc")
- (recursive-edit)
- t)) ; Consider acted upon
- "edit, exit with Esc Esc"))
- t)
- (if found-bad (goto-char found-bad)
- (goto-char p)
- (message "No appropriate place found"))))
-
-(defun cperl-next-bad-style ()
- (let (p (not-found t) (point (point)) found)
- (while (and not-found
- (re-search-forward cperl-bad-style-regexp nil 'to-end))
- (setq p (point))
- (goto-char (match-beginning 0))
- (if (or
- (looking-at cperl-not-bad-style-regexp)
- ;; Check for a < -b and friends
- (and (eq (following-char) ?\-)
- (save-excursion
- (skip-chars-backward " \t\n")
- (memq (preceding-char) '(?\= ?\> ?\< ?\, ?\( ?\[ ?\{))))
- ;; Now check for syntax type
- (save-match-data
- (setq found (point))
- (beginning-of-defun)
- (let ((pps (parse-partial-sexp (point) found)))
- (or (nth 3 pps) (nth 4 pps) (nth 5 pps)))))
- (goto-char (match-end 0))
- (goto-char (1- p))
- (setq not-found nil
- found-bad found)))
- (not not-found)))
-
-\f
-;;; Getting help
-(defvar cperl-have-help-regexp
- ;;(concat "\\("
- (mapconcat
- 'identity
- '("[$@%*&][0-9a-zA-Z_:]+\\([ \t]*[[{]\\)?" ; Usual variable
- "[$@]\\^[a-zA-Z]" ; Special variable
- "[$@][^ \n\t]" ; Special variable
- "-[a-zA-Z]" ; File test
- "\\\\[a-zA-Z0]" ; Special chars
- "^=[a-z][a-zA-Z0-9_]*" ; POD sections
- "[-!&*+,-./<=>?\\\\^|~]+" ; Operator
- "[a-zA-Z_0-9:]+" ; symbol or number
- "x="
- "#!")
- ;;"\\)\\|\\("
- "\\|")
- ;;"\\)"
- ;;)
- "Matches places in the buffer we can find help for.")
-
-(defvar cperl-message-on-help-error t)
-(defvar cperl-help-from-timer nil)
-
-(defun cperl-word-at-point-hard ()
- ;; Does not save-excursion
- ;; Get to the something meaningful
- (or (eobp) (eolp) (forward-char 1))
- (re-search-backward "[-a-zA-Z0-9_:!&*+,-./<=>?\\\\^|~$%@]"
- (save-excursion (beginning-of-line) (point))
- 'to-beg)
- ;; (cond
- ;; ((or (eobp) (looking-at "[][ \t\n{}();,]")) ; Not at a symbol
- ;; (skip-chars-backward " \n\t\r({[]});,")
- ;; (or (bobp) (backward-char 1))))
- ;; Try to backtrace
- (cond
- ((looking-at "[a-zA-Z0-9_:]") ; symbol
- (skip-chars-backward "a-zA-Z0-9_:")
- (cond
- ((and (eq (preceding-char) ?^) ; $^I
- (eq (char-after (- (point) 2)) ?\$))
- (forward-char -2))
- ((memq (preceding-char) (append "*$@%&\\" nil)) ; *glob
- (forward-char -1))
- ((and (eq (preceding-char) ?\=)
- (eq (current-column) 1))
- (forward-char -1))) ; =head1
- (if (and (eq (preceding-char) ?\<)
- (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <FH>
- (forward-char -1)))
- ((and (looking-at "=") (eq (preceding-char) ?x)) ; x=
- (forward-char -1))
- ((and (looking-at "\\^") (eq (preceding-char) ?\$)) ; $^I
- (forward-char -1))
- ((looking-at "[-!&*+,-./<=>?\\\\^|~]")
- (skip-chars-backward "-!&*+,-./<=>?\\\\^|~")
- (cond
- ((and (eq (preceding-char) ?\$)
- (not (eq (char-after (- (point) 2)) ?\$))) ; $-
- (forward-char -1))
- ((and (eq (following-char) ?\>)
- (string-match "[a-zA-Z0-9_]" (char-to-string (preceding-char)))
- (save-excursion
- (forward-sexp -1)
- (and (eq (preceding-char) ?\<)
- (looking-at "\\$?[a-zA-Z0-9_:]+>")))) ; <FH>
- (search-backward "<"))))
- ((and (eq (following-char) ?\$)
- (eq (preceding-char) ?\<)
- (looking-at "\\$?[a-zA-Z0-9_:]+>")) ; <$fh>
- (forward-char -1)))
- (if (looking-at cperl-have-help-regexp)
- (buffer-substring (match-beginning 0) (match-end 0))))
-
-(defun cperl-get-help ()
- "Get one-line docs on the symbol at the point.
-The data for these docs is a little bit obsolete and may be in fact longer
-than a line. Your contribution to update/shorten it is appreciated."
- (interactive)
- (save-match-data ; May be called "inside" query-replace
- (save-excursion
- (let ((word (cperl-word-at-point-hard)))
- (if word
- (if (and cperl-help-from-timer ; Bail out if not in mainland
- (not (string-match "^#!\\|\\\\\\|^=" word)) ; Show help even in comments/strings.
- (or (memq (get-text-property (point) 'face)
- '(font-lock-comment-face font-lock-string-face))
- (memq (get-text-property (point) 'syntax-type)
- '(pod here-doc format))))
- nil
- (cperl-describe-perl-symbol word))
- (if cperl-message-on-help-error
- (message "Nothing found for %s..."
- (buffer-substring (point) (min (+ 5 (point)) (point-max))))))))))
-
-;;; Stolen from perl-descr.el by Johan Vromans:
-
-(defvar cperl-doc-buffer " *perl-doc*"
- "Where the documentation can be found.")
-
-(defun cperl-describe-perl-symbol (val)
- "Display the documentation of symbol at point, a Perl operator."
- (let ((enable-recursive-minibuffers t)
- args-file regexp)
- (cond
- ((string-match "^[&*][a-zA-Z_]" val)
- (setq val (concat (substring val 0 1) "NAME")))
- ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*\\[" val)
- (setq val (concat "@" (substring val 1 (match-end 1)))))
- ((string-match "^[$@]\\([a-zA-Z_:0-9]+\\)[ \t]*{" val)
- (setq val (concat "%" (substring val 1 (match-end 1)))))
- ((and (string= val "x") (string-match "^x=" val))
- (setq val "x="))
- ((string-match "^\\$[\C-a-\C-z]" val)
- (setq val (concat "$^" (char-to-string (+ ?A -1 (aref val 1))))))
- ((string-match "^CORE::" val)
- (setq val "CORE::"))
- ((string-match "^SUPER::" val)
- (setq val "SUPER::"))
- ((and (string= "<" val) (string-match "^<\\$?[a-zA-Z0-9_:]+>" val))
- (setq val "<NAME>")))
- (setq regexp (concat "^"
- "\\([^a-zA-Z0-9_:]+[ \t]+\\)?"
- (regexp-quote val)
- "\\([ \t([/]\\|$\\)"))
-
- ;; get the buffer with the documentation text
- (cperl-switch-to-doc-buffer)
-
- ;; lookup in the doc
- (goto-char (point-min))
- (let ((case-fold-search nil))
- (list
- (if (re-search-forward regexp (point-max) t)
- (save-excursion
- (beginning-of-line 1)
- (let ((lnstart (point)))
- (end-of-line)
- (message "%s" (buffer-substring lnstart (point)))))
- (if cperl-message-on-help-error
- (message "No definition for %s" val)))))))
-
-(defvar cperl-short-docs 'please-ignore-this-line
- ;; Perl4 version was written by Johan Vromans (jvromans@squirrel.nl)
- "# based on '@(#)@ perl-descr.el 1.9 - describe-perl-symbol' [Perl 5]
-... Range (list context); flip/flop [no flop when flip] (scalar context).
-! ... Logical negation.
-... != ... Numeric inequality.
-... !~ ... Search pattern, substitution, or translation (negated).
-$! In numeric context: errno. In a string context: error string.
-$\" The separator which joins elements of arrays interpolated in strings.
-$# The output format for printed numbers. Default is %.15g or close.
-$$ Process number of this script. Changes in the fork()ed child process.
-$% The current page number of the currently selected output channel.
-
- The following variables are always local to the current block:
-
-$1 Match of the 1st set of parentheses in the last match (auto-local).
-$2 Match of the 2nd set of parentheses in the last match (auto-local).
-$3 Match of the 3rd set of parentheses in the last match (auto-local).
-$4 Match of the 4th set of parentheses in the last match (auto-local).
-$5 Match of the 5th set of parentheses in the last match (auto-local).
-$6 Match of the 6th set of parentheses in the last match (auto-local).
-$7 Match of the 7th set of parentheses in the last match (auto-local).
-$8 Match of the 8th set of parentheses in the last match (auto-local).
-$9 Match of the 9th set of parentheses in the last match (auto-local).
-$& The string matched by the last pattern match (auto-local).
-$' The string after what was matched by the last match (auto-local).
-$` The string before what was matched by the last match (auto-local).
-
-$( The real gid of this process.
-$) The effective gid of this process.
-$* Deprecated: Set to 1 to do multiline matching within a string.
-$+ The last bracket matched by the last search pattern.
-$, The output field separator for the print operator.
-$- The number of lines left on the page.
-$. The current input line number of the last filehandle that was read.
-$/ The input record separator, newline by default.
-$0 Name of the file containing the current perl script (read/write).
-$: String may be broken after these characters to fill ^-lines in a format.
-$; Subscript separator for multi-dim array emulation. Default \"\\034\".
-$< The real uid of this process.
-$= The page length of the current output channel. Default is 60 lines.
-$> The effective uid of this process.
-$? The status returned by the last ``, pipe close or `system'.
-$@ The perl error message from the last eval or do @var{EXPR} command.
-$ARGV The name of the current file used with <> .
-$[ Deprecated: The index of the first element/char in an array/string.
-$\\ The output record separator for the print operator.
-$] The perl version string as displayed with perl -v.
-$^ The name of the current top-of-page format.
-$^A The current value of the write() accumulator for format() lines.
-$^D The value of the perl debug (-D) flags.
-$^E Information about the last system error other than that provided by $!.
-$^F The highest system file descriptor, ordinarily 2.
-$^H The current set of syntax checks enabled by `use strict'.
-$^I The value of the in-place edit extension (perl -i option).
-$^L What formats output to perform a formfeed. Default is \f.
-$^M A buffer for emergency memory allocation when running out of memory.
-$^O The operating system name under which this copy of Perl was built.
-$^P Internal debugging flag.
-$^T The time the script was started. Used by -A/-M/-C file tests.
-$^W True if warnings are requested (perl -w flag).
-$^X The name under which perl was invoked (argv[0] in C-speech).
-$_ The default input and pattern-searching space.
-$| Auto-flush after write/print on current output channel? Default 0.
-$~ The name of the current report format.
-... % ... Modulo division.
-... %= ... Modulo division assignment.
-%ENV Contains the current environment.
-%INC List of files that have been require-d or do-ne.
-%SIG Used to set signal handlers for various signals.
-... & ... Bitwise and.
-... && ... Logical and.
-... &&= ... Logical and assignment.
-... &= ... Bitwise and assignment.
-... * ... Multiplication.
-... ** ... Exponentiation.
-*NAME Glob: all objects refered by NAME. *NAM1 = *NAM2 aliases NAM1 to NAM2.
-&NAME(arg0, ...) Subroutine call. Arguments go to @_.
-... + ... Addition. +EXPR Makes EXPR into scalar context.
-++ Auto-increment (magical on strings). ++EXPR EXPR++
-... += ... Addition assignment.
-, Comma operator.
-... - ... Subtraction.
--- Auto-decrement (NOT magical on strings). --EXPR EXPR--
-... -= ... Subtraction assignment.
--A Access time in days since script started.
--B File is a non-text (binary) file.
--C Inode change time in days since script started.
--M Age in days since script started.
--O File is owned by real uid.
--R File is readable by real uid.
--S File is a socket .
--T File is a text file.
--W File is writable by real uid.
--X File is executable by real uid.
--b File is a block special file.
--c File is a character special file.
--d File is a directory.
--e File exists .
--f File is a plain file.
--g File has setgid bit set.
--k File has sticky bit set.
--l File is a symbolic link.
--o File is owned by effective uid.
--p File is a named pipe (FIFO).
--r File is readable by effective uid.
--s File has non-zero size.
--t Tests if filehandle (STDIN by default) is opened to a tty.
--u File has setuid bit set.
--w File is writable by effective uid.
--x File is executable by effective uid.
--z File has zero size.
-. Concatenate strings.
-.. Range (list context); flip/flop (scalar context) operator.
-.= Concatenate assignment strings
-... / ... Division. /PATTERN/ioxsmg Pattern match
-... /= ... Division assignment.
-/PATTERN/ioxsmg Pattern match.
-... < ... Numeric less than. <pattern> Glob. See <NAME>, <> as well.
-<NAME> Reads line from filehandle NAME (a bareword or dollar-bareword).
-<pattern> Glob (Unless pattern is bareword/dollar-bareword - see <NAME>).
-<> Reads line from union of files in @ARGV (= command line) and STDIN.
-... << ... Bitwise shift left. << start of HERE-DOCUMENT.
-... <= ... Numeric less than or equal to.
-... <=> ... Numeric compare.
-... = ... Assignment.
-... == ... Numeric equality.
-... =~ ... Search pattern, substitution, or translation
-... > ... Numeric greater than.
-... >= ... Numeric greater than or equal to.
-... >> ... Bitwise shift right.
-... >>= ... Bitwise shift right assignment.
-... ? ... : ... Condition=if-then-else operator. ?PAT? One-time pattern match.
-?PATTERN? One-time pattern match.
-@ARGV Command line arguments (not including the command name - see $0).
-@INC List of places to look for perl scripts during do/include/use.
-@_ Parameter array for subroutines; result of split() unless in list context.
-\\ Creates reference to what follows, like \$var, or quotes non-\w in strings.
-\\0 Octal char, e.g. \\033.
-\\E Case modification terminator. See \\Q, \\L, and \\U.
-\\L Lowercase until \\E . See also \l, lc.
-\\U Upcase until \\E . See also \u, uc.
-\\Q Quote metacharacters until \\E . See also quotemeta.
-\\a Alarm character (octal 007).
-\\b Backspace character (octal 010).
-\\c Control character, e.g. \\c[ .
-\\e Escape character (octal 033).
-\\f Formfeed character (octal 014).
-\\l Lowercase the next character. See also \\L and \\u, lcfirst.
-\\n Newline character (octal 012 on most systems).
-\\r Return character (octal 015 on most systems).
-\\t Tab character (octal 011).
-\\u Upcase the next character. See also \\U and \\l, ucfirst.
-\\x Hex character, e.g. \\x1b.
-... ^ ... Bitwise exclusive or.
-__END__ Ends program source.
-__DATA__ Ends program source.
-__FILE__ Current (source) filename.
-__LINE__ Current line in current source.
-__PACKAGE__ Current package.
-ARGV Default multi-file input filehandle. <ARGV> is a synonym for <>.
-ARGVOUT Output filehandle with -i flag.
-BEGIN { ... } Immediately executed (during compilation) piece of code.
-END { ... } Pseudo-subroutine executed after the script finishes.
-CHECK { ... } Pseudo-subroutine executed after the script is compiled.
-INIT { ... } Pseudo-subroutine executed before the script starts running.
-DATA Input filehandle for what follows after __END__ or __DATA__.
-accept(NEWSOCKET,GENERICSOCKET)
-alarm(SECONDS)
-atan2(X,Y)
-bind(SOCKET,NAME)
-binmode(FILEHANDLE)
-caller[(LEVEL)]
-chdir(EXPR)
-chmod(LIST)
-chop[(LIST|VAR)]
-chown(LIST)
-chroot(FILENAME)
-close(FILEHANDLE)
-closedir(DIRHANDLE)
-... cmp ... String compare.
-connect(SOCKET,NAME)
-continue of { block } continue { block }. Is executed after `next' or at end.
-cos(EXPR)
-crypt(PLAINTEXT,SALT)
-dbmclose(%HASH)
-dbmopen(%HASH,DBNAME,MODE)
-defined(EXPR)
-delete($HASH{KEY})
-die(LIST)
-do { ... }|SUBR while|until EXPR executes at least once
-do(EXPR|SUBR([LIST])) (with while|until executes at least once)
-dump LABEL
-each(%HASH)
-endgrent
-endhostent
-endnetent
-endprotoent
-endpwent
-endservent
-eof[([FILEHANDLE])]
-... eq ... String equality.
-eval(EXPR) or eval { BLOCK }
-exec(LIST)
-exit(EXPR)
-exp(EXPR)
-fcntl(FILEHANDLE,FUNCTION,SCALAR)
-fileno(FILEHANDLE)
-flock(FILEHANDLE,OPERATION)
-for (EXPR;EXPR;EXPR) { ... }
-foreach [VAR] (@ARRAY) { ... }
-fork
-... ge ... String greater than or equal.
-getc[(FILEHANDLE)]
-getgrent
-getgrgid(GID)
-getgrnam(NAME)
-gethostbyaddr(ADDR,ADDRTYPE)
-gethostbyname(NAME)
-gethostent
-getlogin
-getnetbyaddr(ADDR,ADDRTYPE)
-getnetbyname(NAME)
-getnetent
-getpeername(SOCKET)
-getpgrp(PID)
-getppid
-getpriority(WHICH,WHO)
-getprotobyname(NAME)
-getprotobynumber(NUMBER)
-getprotoent
-getpwent
-getpwnam(NAME)
-getpwuid(UID)
-getservbyname(NAME,PROTO)
-getservbyport(PORT,PROTO)
-getservent
-getsockname(SOCKET)
-getsockopt(SOCKET,LEVEL,OPTNAME)
-gmtime(EXPR)
-goto LABEL
-... gt ... String greater than.
-hex(EXPR)
-if (EXPR) { ... } [ elsif (EXPR) { ... } ... ] [ else { ... } ] or EXPR if EXPR
-index(STR,SUBSTR[,OFFSET])
-int(EXPR)
-ioctl(FILEHANDLE,FUNCTION,SCALAR)
-join(EXPR,LIST)
-keys(%HASH)
-kill(LIST)
-last [LABEL]
-... le ... String less than or equal.
-length(EXPR)
-link(OLDFILE,NEWFILE)
-listen(SOCKET,QUEUESIZE)
-local(LIST)
-localtime(EXPR)
-log(EXPR)
-lstat(EXPR|FILEHANDLE|VAR)
-... lt ... String less than.
-m/PATTERN/iogsmx
-mkdir(FILENAME,MODE)
-msgctl(ID,CMD,ARG)
-msgget(KEY,FLAGS)
-msgrcv(ID,VAR,SIZE,TYPE.FLAGS)
-msgsnd(ID,MSG,FLAGS)
-my VAR or my (VAR1,...) Introduces a lexical variable ($VAR, @ARR, or %HASH).
-our VAR or our (VAR1,...) Lexically enable a global variable ($V, @A, or %H).
-... ne ... String inequality.
-next [LABEL]
-oct(EXPR)
-open(FILEHANDLE[,EXPR])
-opendir(DIRHANDLE,EXPR)
-ord(EXPR) ASCII value of the first char of the string.
-pack(TEMPLATE,LIST)
-package NAME Introduces package context.
-pipe(READHANDLE,WRITEHANDLE) Create a pair of filehandles on ends of a pipe.
-pop(ARRAY)
-print [FILEHANDLE] [(LIST)]
-printf [FILEHANDLE] (FORMAT,LIST)
-push(ARRAY,LIST)
-q/STRING/ Synonym for 'STRING'
-qq/STRING/ Synonym for \"STRING\"
-qx/STRING/ Synonym for `STRING`
-rand[(EXPR)]
-read(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
-readdir(DIRHANDLE)
-readlink(EXPR)
-recv(SOCKET,SCALAR,LEN,FLAGS)
-redo [LABEL]
-rename(OLDNAME,NEWNAME)
-require [FILENAME | PERL_VERSION]
-reset[(EXPR)]
-return(LIST)
-reverse(LIST)
-rewinddir(DIRHANDLE)
-rindex(STR,SUBSTR[,OFFSET])
-rmdir(FILENAME)
-s/PATTERN/REPLACEMENT/gieoxsm
-scalar(EXPR)
-seek(FILEHANDLE,POSITION,WHENCE)
-seekdir(DIRHANDLE,POS)
-select(FILEHANDLE | RBITS,WBITS,EBITS,TIMEOUT)
-semctl(ID,SEMNUM,CMD,ARG)
-semget(KEY,NSEMS,SIZE,FLAGS)
-semop(KEY,...)
-send(SOCKET,MSG,FLAGS[,TO])
-setgrent
-sethostent(STAYOPEN)
-setnetent(STAYOPEN)
-setpgrp(PID,PGRP)
-setpriority(WHICH,WHO,PRIORITY)
-setprotoent(STAYOPEN)
-setpwent
-setservent(STAYOPEN)
-setsockopt(SOCKET,LEVEL,OPTNAME,OPTVAL)
-shift[(ARRAY)]
-shmctl(ID,CMD,ARG)
-shmget(KEY,SIZE,FLAGS)
-shmread(ID,VAR,POS,SIZE)
-shmwrite(ID,STRING,POS,SIZE)
-shutdown(SOCKET,HOW)
-sin(EXPR)
-sleep[(EXPR)]
-socket(SOCKET,DOMAIN,TYPE,PROTOCOL)
-socketpair(SOCKET1,SOCKET2,DOMAIN,TYPE,PROTOCOL)
-sort [SUBROUTINE] (LIST)
-splice(ARRAY,OFFSET[,LENGTH[,LIST]])
-split[(/PATTERN/[,EXPR[,LIMIT]])]
-sprintf(FORMAT,LIST)
-sqrt(EXPR)
-srand(EXPR)
-stat(EXPR|FILEHANDLE|VAR)
-study[(SCALAR)]
-sub [NAME [(format)]] { BODY } sub NAME [(format)]; sub [(format)] {...}
-substr(EXPR,OFFSET[,LEN])
-symlink(OLDFILE,NEWFILE)
-syscall(LIST)
-sysread(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
-system(LIST)
-syswrite(FILEHANDLE,SCALAR,LENGTH[,OFFSET])
-tell[(FILEHANDLE)]
-telldir(DIRHANDLE)
-time
-times
-tr/SEARCHLIST/REPLACEMENTLIST/cds
-truncate(FILE|EXPR,LENGTH)
-umask[(EXPR)]
-undef[(EXPR)]
-unless (EXPR) { ... } [ else { ... } ] or EXPR unless EXPR
-unlink(LIST)
-unpack(TEMPLATE,EXPR)
-unshift(ARRAY,LIST)
-until (EXPR) { ... } EXPR until EXPR
-utime(LIST)
-values(%HASH)
-vec(EXPR,OFFSET,BITS)
-wait
-waitpid(PID,FLAGS)
-wantarray Returns true if the sub/eval is called in list context.
-warn(LIST)
-while (EXPR) { ... } EXPR while EXPR
-write[(EXPR|FILEHANDLE)]
-... x ... Repeat string or array.
-x= ... Repetition assignment.
-y/SEARCHLIST/REPLACEMENTLIST/
-... | ... Bitwise or.
-... || ... Logical or.
-~ ... Unary bitwise complement.
-#! OS interpreter indicator. If contains `perl', used for options, and -x.
-AUTOLOAD {...} Shorthand for `sub AUTOLOAD {...}'.
-CORE:: Prefix to access builtin function if imported sub obscures it.
-SUPER:: Prefix to lookup for a method in @ISA classes.
-DESTROY Shorthand for `sub DESTROY {...}'.
-... EQ ... Obsolete synonym of `eq'.
-... GE ... Obsolete synonym of `ge'.
-... GT ... Obsolete synonym of `gt'.
-... LE ... Obsolete synonym of `le'.
-... LT ... Obsolete synonym of `lt'.
-... NE ... Obsolete synonym of `ne'.
-abs [ EXPR ] absolute value
-... and ... Low-precedence synonym for &&.
-bless REFERENCE [, PACKAGE] Makes reference into an object of a package.
-chomp [LIST] Strips $/ off LIST/$_. Returns count. Special if $/ eq ''!
-chr Converts a number to char with the same ordinal.
-else Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
-elsif Part of if/unless {BLOCK} elsif {BLOCK} else {BLOCK}.
-exists $HASH{KEY} True if the key exists.
-format [NAME] = Start of output format. Ended by a single dot (.) on a line.
-formline PICTURE, LIST Backdoor into \"format\" processing.
-glob EXPR Synonym of <EXPR>.
-lc [ EXPR ] Returns lowercased EXPR.
-lcfirst [ EXPR ] Returns EXPR with lower-cased first letter.
-grep EXPR,LIST or grep {BLOCK} LIST Filters LIST via EXPR/BLOCK.
-map EXPR, LIST or map {BLOCK} LIST Applies EXPR/BLOCK to elts of LIST.
-no PACKAGE [SYMBOL1, ...] Partial reverse for `use'. Runs `unimport' method.
-not ... Low-precedence synonym for ! - negation.
-... or ... Low-precedence synonym for ||.
-pos STRING Set/Get end-position of the last match over this string, see \\G.
-quotemeta [ EXPR ] Quote regexp metacharacters.
-qw/WORD1 .../ Synonym of split('', 'WORD1 ...')
-readline FH Synonym of <FH>.
-readpipe CMD Synonym of `CMD`.
-ref [ EXPR ] Type of EXPR when dereferenced.
-sysopen FH, FILENAME, MODE [, PERM] (MODE is numeric, see Fcntl.)
-tie VAR, PACKAGE, LIST Hide an object behind a simple Perl variable.
-tied Returns internal object for a tied data.
-uc [ EXPR ] Returns upcased EXPR.
-ucfirst [ EXPR ] Returns EXPR with upcased first letter.
-untie VAR Unlink an object from a simple Perl variable.
-use PACKAGE [SYMBOL1, ...] Compile-time `require' with consequent `import'.
-... xor ... Low-precedence synonym for exclusive or.
-prototype \&SUB Returns prototype of the function given a reference.
-=head1 Top-level heading.
-=head2 Second-level heading.
-=head3 Third-level heading (is there such?).
-=over [ NUMBER ] Start list.
-=item [ TITLE ] Start new item in the list.
-=back End list.
-=cut Switch from POD to Perl.
-=pod Switch from Perl to POD.
-")
-
-(defun cperl-switch-to-doc-buffer ()
- "Go to the perl documentation buffer and insert the documentation."
- (interactive)
- (let ((buf (get-buffer-create cperl-doc-buffer)))
- (if (interactive-p)
- (switch-to-buffer-other-window buf)
- (set-buffer buf))
- (if (= (buffer-size) 0)
- (progn
- (insert (documentation-property 'cperl-short-docs
- 'variable-documentation))
- (setq buffer-read-only t)))))
-
-(defun cperl-beautify-regexp-piece (b e embed level)
- ;; b is before the starting delimiter, e before the ending
- ;; e should be a marker, may be changed, but remains "correct".
- ;; EMBED is nil iff we process the whole REx.
- ;; The REx is guaranteed to have //x
- ;; LEVEL shows how many levels deep to go
- ;; position at enter and at leave is not defined
- (let (s c tmp (m (make-marker)) (m1 (make-marker)) c1 spaces inline code pos)
- (if (not embed)
- (goto-char (1+ b))
- (goto-char b)
- (cond ((looking-at "(\\?\\\\#") ; (?#) wrongly commented when //x-ing
- (forward-char 2)
- (delete-char 1)
- (forward-char 1))
- ((looking-at "(\\?[^a-zA-Z]")
- (forward-char 3))
- ((looking-at "(\\?") ; (?i)
- (forward-char 2))
- (t
- (forward-char 1))))
- (setq c (if embed (current-indentation) (1- (current-column)))
- c1 (+ c (or cperl-regexp-indent-step cperl-indent-level)))
- (or (looking-at "[ \t]*[\n#]")
- (progn
- (insert "\n")))
- (goto-char e)
- (beginning-of-line)
- (if (re-search-forward "[^ \t]" e t)
- (progn ; Something before the ending delimiter
- (goto-char e)
- (delete-horizontal-space)
- (insert "\n")
- (cperl-make-indent c)
- (set-marker e (point))))
- (goto-char b)
- (end-of-line 2)
- (while (< (point) (marker-position e))
- (beginning-of-line)
- (setq s (point)
- inline t)
- (skip-chars-forward " \t")
- (delete-region s (point))
- (cperl-make-indent c1)
- (while (and
- inline
- (looking-at
- (concat "\\([a-zA-Z0-9]+[^*+{?]\\)" ; 1 word
- "\\|" ; Embedded variable
- "\\$\\([a-zA-Z0-9_]+\\([[{]\\)?\\|[^\n \t)|]\\)" ; 2 3
- "\\|" ; $ ^
- "[$^]"
- "\\|" ; simple-code simple-code*?
- "\\(\\\\.\\|[^][()#|*+?\n]\\)\\([*+{?]\\??\\)?" ; 4 5
- "\\|" ; Class
- "\\(\\[\\)" ; 6
- "\\|" ; Grouping
- "\\((\\(\\?\\)?\\)" ; 7 8
- "\\|" ; |
- "\\(|\\)"))) ; 9
- (goto-char (match-end 0))
- (setq spaces t)
- (cond ((match-beginning 1) ; Alphanum word + junk
- (forward-char -1))
- ((or (match-beginning 3) ; $ab[12]
- (and (match-beginning 5) ; X* X+ X{2,3}
- (eq (preceding-char) ?\{)))
- (forward-char -1)
- (forward-sexp 1))
- ((and ; [], already syntaxified
- (match-beginning 6)
- cperl-regexp-scan
- cperl-use-syntax-table-text-property)
- (forward-char -1)
- (forward-sexp 1)
- (or (eq (preceding-char) ?\])
- (error "[]-group not terminated"))
- (re-search-forward
- "\\=\\([*+?]\\|{[0-9]+\\(,[0-9]*\\)?}\\)\\??" e t))
- ((match-beginning 6) ; []
- (setq tmp (point))
- (if (looking-at "\\^?\\]")
- (goto-char (match-end 0)))
- ;; XXXX POSIX classes?!
- (while (and (not pos)
- (re-search-forward "\\[:\\|\\]" e t))
- (if (eq (preceding-char) ?:)
- (or (re-search-forward ":\\]" e t)
- (error "[:POSIX:]-group in []-group not terminated"))
- (setq pos t)))
- (or (eq (preceding-char) ?\])
- (error "[]-group not terminated"))
- (re-search-forward
- "\\=\\([*+?]\\|{[0-9]+\\(,[0-9]*\\)?}\\)\\??" e t))
- ((match-beginning 7) ; ()
- (goto-char (match-beginning 0))
- (setq pos (current-column))
- (or (eq pos c1)
- (progn
- (delete-horizontal-space)
- (insert "\n")
- (cperl-make-indent c1)))
- (setq tmp (point))
- (forward-sexp 1)
- ;; (or (forward-sexp 1)
- ;; (progn
- ;; (goto-char tmp)
- ;; (error "()-group not terminated")))
- (set-marker m (1- (point)))
- (set-marker m1 (point))
- (if (= level 1)
- (if (progn ; indent rigidly if multiline
- ;; In fact does not make a lot of sense, since
- ;; the starting position can be already lost due
- ;; to insertion of "\n" and " "
- (goto-char tmp)
- (search-forward "\n" m1 t))
- (indent-rigidly (point) m1 (- c1 pos)))
- (setq level (1- level))
- (cond
- ((not (match-beginning 8))
- (cperl-beautify-regexp-piece tmp m t level))
- ((eq (char-after (+ 2 tmp)) ?\{) ; Code
- t)
- ((eq (char-after (+ 2 tmp)) ?\() ; Conditional
- (goto-char (+ 2 tmp))
- (forward-sexp 1)
- (cperl-beautify-regexp-piece (point) m t level))
- ((eq (char-after (+ 2 tmp)) ?<) ; Lookbehind
- (goto-char (+ 3 tmp))
- (cperl-beautify-regexp-piece (point) m t level))
- (t
- (cperl-beautify-regexp-piece tmp m t level))))
- (goto-char m1)
- (cond ((looking-at "[*+?]\\??")
- (goto-char (match-end 0)))
- ((eq (following-char) ?\{)
- (forward-sexp 1)
- (if (eq (following-char) ?\?)
- (forward-char))))
- (skip-chars-forward " \t")
- (setq spaces nil)
- (if (looking-at "[#\n]")
- (progn
- (or (eolp) (indent-for-comment))
- (beginning-of-line 2))
- (delete-horizontal-space)
- (insert "\n"))
- (end-of-line)
- (setq inline nil))
- ((match-beginning 9) ; |
- (forward-char -1)
- (setq tmp (point))
- (beginning-of-line)
- (if (re-search-forward "[^ \t]" tmp t)
- (progn
- (goto-char tmp)
- (delete-horizontal-space)
- (insert "\n"))
- ;; first at line
- (delete-region (point) tmp))
- (cperl-make-indent c)
- (forward-char 1)
- (skip-chars-forward " \t")
- (setq spaces nil)
- (if (looking-at "[#\n]")
- (beginning-of-line 2)
- (delete-horizontal-space)
- (insert "\n"))
- (end-of-line)
- (setq inline nil)))
- (or (looking-at "[ \t\n]")
- (not spaces)
- (insert " "))
- (skip-chars-forward " \t"))
- (or (looking-at "[#\n]")
- (error "Unknown code `%s' in a regexp"
- (buffer-substring (point) (1+ (point)))))
- (and inline (end-of-line 2)))
- ;; Special-case the last line of group
- (if (and (>= (point) (marker-position e))
- (/= (current-indentation) c))
- (progn
- (beginning-of-line)
- (cperl-make-indent c)))))
-
-(defun cperl-make-regexp-x ()
- ;; Returns position of the start
- ;; XXX this is called too often! Need to cache the result!
- (save-excursion
- (or cperl-use-syntax-table-text-property
- (error "I need to have a regexp marked!"))
- ;; Find the start
- (if (looking-at "\\s|")
- nil ; good already
- (if (looking-at "\\([smy]\\|qr\\)\\s|")
- (forward-char 1)
- (re-search-backward "\\s|"))) ; Assume it is scanned already.
- ;;(forward-char 1)
- (let ((b (point)) (e (make-marker)) have-x delim (c (current-column))
- (sub-p (eq (preceding-char) ?s)) s)
- (forward-sexp 1)
- (set-marker e (1- (point)))
- (setq delim (preceding-char))
- (if (and sub-p (eq delim (char-after (- (point) 2))))
- (error "Possible s/blah// - do not know how to deal with"))
- (if sub-p (forward-sexp 1))
- (if (looking-at "\\sw*x")
- (setq have-x t)
- (insert "x"))
- ;; Protect fragile " ", "#"
- (if have-x nil
- (goto-char (1+ b))
- (while (re-search-forward "\\(\\=\\|[^\\\\]\\)\\(\\\\\\\\\\)*[ \t\n#]" e t) ; Need to include (?#) too?
- (forward-char -1)
- (insert "\\")
- (forward-char 1)))
- b)))
-
-(defun cperl-beautify-regexp (&optional deep)
- "Do it. (Experimental, may change semantics, recheck the result.)
-We suppose that the regexp is scanned already."
- (interactive "P")
- (setq deep (if deep (prefix-numeric-value deep) -1))
- (save-excursion
- (goto-char (cperl-make-regexp-x))
- (let ((b (point)) (e (make-marker)))
- (forward-sexp 1)
- (set-marker e (1- (point)))
- (cperl-beautify-regexp-piece b e nil deep))))
-
-(defun cperl-regext-to-level-start ()
- "Goto start of an enclosing group in regexp.
-We suppose that the regexp is scanned already."
- (interactive)
- (let ((limit (cperl-make-regexp-x)) done)
- (while (not done)
- (or (eq (following-char) ?\()
- (search-backward "(" (1+ limit) t)
- (error "Cannot find `(' which starts a group"))
- (setq done
- (save-excursion
- (skip-chars-backward "\\")
- (looking-at "\\(\\\\\\\\\\)*(")))
- (or done (forward-char -1)))))
-
-(defun cperl-contract-level ()
- "Find an enclosing group in regexp and contract it.
-\(Experimental, may change semantics, recheck the result.)
-We suppose that the regexp is scanned already."
- (interactive)
- ;; (save-excursion ; Can't, breaks `cperl-contract-levels'
- (cperl-regext-to-level-start)
- (let ((b (point)) (e (make-marker)) c)
- (forward-sexp 1)
- (set-marker e (1- (point)))
- (goto-char b)
- (while (re-search-forward "\\(#\\)\\|\n" e 'to-end)
- (cond
- ((match-beginning 1) ; #-comment
- (or c (setq c (current-indentation)))
- (beginning-of-line 2) ; Skip
- (cperl-make-indent c))
- (t
- (delete-char -1)
- (just-one-space))))))
-
-(defun cperl-contract-levels ()
- "Find an enclosing group in regexp and contract all the kids.
-\(Experimental, may change semantics, recheck the result.)
-We suppose that the regexp is scanned already."
- (interactive)
- (save-excursion
- (condition-case nil
- (cperl-regext-to-level-start)
- (error ; We are outside outermost group
- (goto-char (cperl-make-regexp-x))))
- (let ((b (point)) (e (make-marker)) s c)
- (forward-sexp 1)
- (set-marker e (1- (point)))
- (goto-char (1+ b))
- (while (re-search-forward "\\(\\\\\\\\\\)\\|(" e t)
- (cond
- ((match-beginning 1) ; Skip
- nil)
- (t ; Group
- (cperl-contract-level)))))))
-
-(defun cperl-beautify-level (&optional deep)
- "Find an enclosing group in regexp and beautify it.
-\(Experimental, may change semantics, recheck the result.)
-We suppose that the regexp is scanned already."
- (interactive "P")
- (setq deep (if deep (prefix-numeric-value deep) -1))
- (save-excursion
- (cperl-regext-to-level-start)
- (let ((b (point)) (e (make-marker)))
- (forward-sexp 1)
- (set-marker e (1- (point)))
- (cperl-beautify-regexp-piece b e nil deep))))
-
-(defun cperl-invert-if-unless ()
- "Change `if (A) {B}' into `B if A;' etc if possible."
- (interactive)
- (or (looking-at "\\<")
- (forward-sexp -1))
- (if (looking-at "\\<\\(if\\|unless\\|while\\|until\\|for\\|foreach\\)\\>")
- (let ((pos1 (point))
- pos2 pos3 pos4 pos5 s1 s2 state p pos45
- (s0 (buffer-substring (match-beginning 0) (match-end 0))))
- (forward-sexp 2)
- (setq pos3 (point))
- (forward-sexp -1)
- (setq pos2 (point))
- (if (eq (following-char) ?\( )
- (progn
- (goto-char pos3)
- (forward-sexp 1)
- (setq pos5 (point))
- (forward-sexp -1)
- (setq pos4 (point))
- ;; XXXX In fact may be `A if (B); {C}' ...
- (if (and (eq (following-char) ?\{ )
- (progn
- (cperl-backward-to-noncomment pos3)
- (eq (preceding-char) ?\) )))
- (if (condition-case nil
- (progn
- (goto-char pos5)
- (forward-sexp 1)
- (forward-sexp -1)
- (looking-at "\\<els\\(e\\|if\\)\\>"))
- (error nil))
- (error
- "`%s' (EXPR) {BLOCK} with `else'/`elsif'" s0)
- (goto-char (1- pos5))
- (cperl-backward-to-noncomment pos4)
- (if (eq (preceding-char) ?\;)
- (forward-char -1))
- (setq pos45 (point))
- (goto-char pos4)
- (while (re-search-forward "\\<\\(for\\|foreach\\|if\\|unless\\|while\\|until\\)\\>\\|;" pos45 t)
- (setq p (match-beginning 0)
- s1 (buffer-substring p (match-end 0))
- state (parse-partial-sexp pos4 p))
- (or (nth 3 state)
- (nth 4 state)
- (nth 5 state)
- (error "`%s' inside `%s' BLOCK" s1 s0))
- (goto-char (match-end 0)))
- ;; Finally got it
- (goto-char (1+ pos4))
- (skip-chars-forward " \t\n")
- (setq s2 (buffer-substring (point) pos45))
- (goto-char pos45)
- (or (looking-at ";?[ \t\n]*}")
- (progn
- (skip-chars-forward "; \t\n")
- (setq s2 (concat s2 "\n" (buffer-substring (point) (1- pos5))))))
- (and (equal s2 "")
- (setq s2 "1"))
- (goto-char (1- pos3))
- (cperl-backward-to-noncomment pos2)
- (or (looking-at "[ \t\n]*)")
- (goto-char (1- pos3)))
- (setq p (point))
- (goto-char (1+ pos2))
- (skip-chars-forward " \t\n")
- (setq s1 (buffer-substring (point) p))
- (delete-region pos4 pos5)
- (delete-region pos2 pos3)
- (goto-char pos1)
- (insert s2 " ")
- (just-one-space)
- (forward-word 1)
- (setq pos1 (point))
- (insert " " s1 ";")
- (delete-horizontal-space)
- (forward-char -1)
- (delete-horizontal-space)
- (goto-char pos1)
- (just-one-space)
- (cperl-indent-line))
- (error "`%s' (EXPR) not with an {BLOCK}" s0)))
- (error "`%s' not with an (EXPR)" s0)))
- (error "Not at `if', `unless', `while', `until', `for' or `foreach'")))
-
-;;; By Anthony Foiani <afoiani@uswest.com>
-;;; Getting help on modules in C-h f ?
-;;; This is a modified version of `man'.
-;;; Need to teach it how to lookup functions
-;;;###autoload
-(defun cperl-perldoc (word)
- "Run `perldoc' on WORD."
- (interactive
- (list (let* ((default-entry (cperl-word-at-point))
- (input (read-string
- (format "perldoc entry%s: "
- (if (string= default-entry "")
- ""
- (format " (default %s)" default-entry))))))
- (if (string= input "")
- (if (string= default-entry "")
- (error "No perldoc args given")
- default-entry)
- input))))
- (require 'man)
- (let* ((case-fold-search nil)
- (is-func (and
- (string-match "^[a-z]+$" word)
- (string-match (concat "^" word "\\>")
- (documentation-property
- 'cperl-short-docs
- 'variable-documentation))))
- (manual-program (if is-func "perldoc -f" "perldoc")))
- (cond
- (cperl-xemacs-p
- (let ((Manual-program "perldoc")
- (Manual-switches (if is-func (list "-f"))))
- (manual-entry word)))
- (t
- (Man-getpage-in-background word)))))
-
-;;;###autoload
-(defun cperl-perldoc-at-point ()
- "Run a `perldoc' on the word around point."
- (interactive)
- (cperl-perldoc (cperl-word-at-point)))
-
-(defcustom pod2man-program "pod2man"
- "*File name for `pod2man'."
- :type 'file
- :group 'cperl)
-
-;;; By Nick Roberts <Nick.Roberts@src.bae.co.uk> (with changes)
-(defun cperl-pod-to-manpage ()
- "Create a virtual manpage in Emacs from the Perl Online Documentation."
- (interactive)
- (require 'man)
- (let* ((pod2man-args (concat buffer-file-name " | nroff -man "))
- (bufname (concat "Man " buffer-file-name))
- (buffer (generate-new-buffer bufname)))
- (save-excursion
- (set-buffer buffer)
- (let ((process-environment (copy-sequence process-environment)))
- ;; Prevent any attempt to use display terminal fanciness.
- (setenv "TERM" "dumb")
- (set-process-sentinel
- (start-process pod2man-program buffer "sh" "-c"
- (format (cperl-pod2man-build-command) pod2man-args))
- 'Man-bgproc-sentinel)))))
-
-;;; Updated version by him too
-(defun cperl-build-manpage ()
- "Create a virtual manpage in Emacs from the POD in the file."
- (interactive)
- (require 'man)
- (cond
- (cperl-xemacs-p
- (let ((Manual-program "perldoc"))
- (manual-entry buffer-file-name)))
- (t
- (let* ((manual-program "perldoc"))
- (Man-getpage-in-background buffer-file-name)))))
-
-(defun cperl-pod2man-build-command ()
- "Builds the entire background manpage and cleaning command."
- (let ((command (concat pod2man-program " %s 2>/dev/null"))
- (flist (and (boundp 'Man-filter-list) Man-filter-list)))
- (while (and flist (car flist))
- (let ((pcom (car (car flist)))
- (pargs (cdr (car flist))))
- (setq command
- (concat command " | " pcom " "
- (mapconcat '(lambda (phrase)
- (if (not (stringp phrase))
- (error "Malformed Man-filter-list"))
- phrase)
- pargs " ")))
- (setq flist (cdr flist))))
- command))
-
-;;; Initial version contributed by Trey Belew
-(defun cperl-here-doc-spell (&optional beg end)
- "Spell-check HERE-documents in the Perl buffer.
-If a region is highlighted, restricts to the region."
- (interactive "")
- (cperl-pod-spell t beg end))
-
-(defun cperl-pod-spell (&optional do-heres beg end)
- "Spell-check POD documentation.
-If invoked with prefix argument, will do HERE-DOCs instead.
-If a region is highlighted, restricts to the region."
- (interactive "P")
- (save-excursion
- (let (beg end)
- (if (cperl-mark-active)
- (setq beg (min (mark) (point))
- end (max (mark) (point)))
- (setq beg (point-min)
- end (point-max)))
- (cperl-map-pods-heres (function
- (lambda (s e p)
- (if do-heres
- (setq e (save-excursion
- (goto-char e)
- (forward-line -1)
- (point))))
- (ispell-region s e)
- t))
- (if do-heres 'here-doc-group 'in-pod)
- beg end))))
-
-(defun cperl-map-pods-heres (func &optional prop s end)
- "Executes a function over regions of pods or here-documents.
-PROP is the text-property to search for; default to `in-pod'. Stop when
-function returns nil."
- (let (pos posend has-prop (cont t))
- (or prop (setq prop 'in-pod))
- (or s (setq s (point-min)))
- (or end (setq end (point-max)))
- (cperl-update-syntaxification end end)
- (save-excursion
- (goto-char (setq pos s))
- (while (and cont (< pos end))
- (setq has-prop (get-text-property pos prop))
- (setq posend (next-single-property-change pos prop nil end))
- (and has-prop
- (setq cont (funcall func pos posend prop)))
- (setq pos posend)))))
-
-;;; Based on code by Masatake YAMATO:
-(defun cperl-get-here-doc-region (&optional pos pod)
- "Return HERE document region around the point.
-Return nil if the point is not in a HERE document region. If POD is non-nil,
-will return a POD section if point is in a POD section."
- (or pos (setq pos (point)))
- (cperl-update-syntaxification pos pos)
- (if (or (eq 'here-doc (get-text-property pos 'syntax-type))
- (and pod
- (eq 'pod (get-text-property pos 'syntax-type))))
- (let ((b (cperl-beginning-of-property pos 'syntax-type))
- (e (next-single-property-change pos 'syntax-type)))
- (cons b (or e (point-max))))))
-
-(defun cperl-narrow-to-here-doc (&optional pos)
- "Narrows editing region to the HERE-DOC at POS.
-POS defaults to the point."
- (interactive "d")
- (or pos (setq pos (point)))
- (let ((p (cperl-get-here-doc-region pos)))
- (or p (error "Not inside a HERE document"))
- (narrow-to-region (car p) (cdr p))
- (message
- "When you are finished with narrow editing, type C-x n w")))
-
-(defun cperl-select-this-pod-or-here-doc (&optional pos)
- "Select the HERE-DOC (or POD section) at POS.
-POS defaults to the point."
- (interactive "d")
- (let ((p (cperl-get-here-doc-region pos t)))
- (if p
- (progn
- (goto-char (car p))
- (push-mark (cdr p) nil t)) ; Message, activate in transient-mode
- (message "I do not think POS is in POD or a HERE-doc..."))))
-
-(defun cperl-facemenu-add-face-function (face end)
- "A callback to process user-initiated font-change requests.
-Translates `bold', `italic', and `bold-italic' requests to insertion of
-corresponding POD directives, and `underline' to C<> POD directive.
-
-Such requests are usually bound to M-o LETTER."
- (or (get-text-property (point) 'in-pod)
- (error "Faces can only be set within POD"))
- (setq facemenu-end-add-face (if (eq face 'bold-italic) ">>" ">"))
- (cdr (or (assq face '((bold . "B<")
- (italic . "I<")
- (bold-italic . "B<I<")
- (underline . "C<")))
- (error "Face %s not configured for cperl-mode"
- face))))
-\f
-(defun cperl-time-fontification (&optional l step lim)
- "Times how long it takes to do incremental fontification in a region.
-L is the line to start at, STEP is the number of lines to skip when
-doing next incremental fontification, LIM is the maximal number of
-incremental fontification to perform. Messages are accumulated in
-*Messages* buffer.
-
-May be used for pinpointing which construct slows down buffer fontification:
-start with default arguments, then refine the slowdown regions."
- (interactive "nLine to start at: \nnStep to do incremental fontification: ")
- (or l (setq l 1))
- (or step (setq step 500))
- (or lim (setq lim 40))
- (let* ((timems (function (lambda ()
- (let ((tt (current-time)))
- (+ (* 1000 (nth 1 tt)) (/ (nth 2 tt) 1000))))))
- (tt (funcall timems)) (c 0) delta tot)
- (goto-line l)
- (cperl-mode)
- (setq tot (- (- tt (setq tt (funcall timems)))))
- (message "cperl-mode at %s: %s" l tot)
- (while (and (< c lim) (not (eobp)))
- (forward-line step)
- (setq l (+ l step))
- (setq c (1+ c))
- (cperl-update-syntaxification (point) (point))
- (setq delta (- (- tt (setq tt (funcall timems)))) tot (+ tot delta))
- (message "to %s:%6s,%7s" l delta tot))
- tot))
-
-(defun cperl-emulate-lazy-lock (&optional window-size)
- "Emulate `lazy-lock' without `condition-case', so `debug-on-error' works.
-Start fontifying the buffer from the start (or end) using the given
-WINDOW-SIZE (units is lines). Negative WINDOW-SIZE starts at end, and
-goes backwards; default is -50. This function is not CPerl-specific; it
-may be used to debug problems with delayed incremental fontification."
- (interactive
- "nSize of window for incremental fontification, negative goes backwards: ")
- (or window-size (setq window-size -50))
- (let ((pos (if (> window-size 0)
- (point-min)
- (point-max)))
- p)
- (goto-char pos)
- (normal-mode)
- ;; Why needed??? With older font-locks???
- (set (make-local-variable 'font-lock-cache-position) (make-marker))
- (while (if (> window-size 0)
- (< pos (point-max))
- (> pos (point-min)))
- (setq p (progn
- (forward-line window-size)
- (point)))
- (font-lock-fontify-region (min p pos) (max p pos))
- (setq pos p))))
-
-\f
-(defun cperl-lazy-install ()) ; Avoid a warning
-(defun cperl-lazy-unstall ()) ; Avoid a warning
-
-(if (fboundp 'run-with-idle-timer)
- (progn
- (defvar cperl-help-shown nil
- "Non-nil means that the help was already shown now.")
-
- (defvar cperl-lazy-installed nil
- "Non-nil means that the lazy-help handlers are installed now.")
-
- (defun cperl-lazy-install ()
- "Switches on Auto-Help on Perl constructs (put in the message area).
-Delay of auto-help controlled by `cperl-lazy-help-time'."
- (interactive)
- (make-variable-buffer-local 'cperl-help-shown)
- (if (and (cperl-val 'cperl-lazy-help-time)
- (not cperl-lazy-installed))
- (progn
- (add-hook 'post-command-hook 'cperl-lazy-hook)
- (run-with-idle-timer
- (cperl-val 'cperl-lazy-help-time 1000000 5)
- t
- 'cperl-get-help-defer)
- (setq cperl-lazy-installed t))))
-
- (defun cperl-lazy-unstall ()
- "Switches off Auto-Help on Perl constructs (put in the message area).
-Delay of auto-help controlled by `cperl-lazy-help-time'."
- (interactive)
- (remove-hook 'post-command-hook 'cperl-lazy-hook)
- (cancel-function-timers 'cperl-get-help-defer)
- (setq cperl-lazy-installed nil))
-
- (defun cperl-lazy-hook ()
- (setq cperl-help-shown nil))
-
- (defun cperl-get-help-defer ()
- (if (not (memq major-mode '(perl-mode cperl-mode))) nil
- (let ((cperl-message-on-help-error nil) (cperl-help-from-timer t))
- (cperl-get-help)
- (setq cperl-help-shown t))))
- (cperl-lazy-install)))
-
-
-;;; Plug for wrong font-lock:
-
-(defun cperl-font-lock-unfontify-region-function (beg end)
- (let* ((modified (buffer-modified-p)) (buffer-undo-list t)
- (inhibit-read-only t) (inhibit-point-motion-hooks t)
- before-change-functions after-change-functions
- deactivate-mark buffer-file-name buffer-file-truename)
- (remove-text-properties beg end '(face nil))
- (if (and (not modified) (buffer-modified-p))
- (set-buffer-modified-p nil))))
-
-(defun cperl-font-lock-fontify-region-function (beg end loudly)
- "Extends the region to safe positions, then calls the default function.
-Newer `font-lock's can do it themselves.
-We unwind only as far as needed for fontification. Syntaxification may
-do extra unwind via `cperl-unwind-to-safe'."
- (save-excursion
- (goto-char beg)
- (while (and beg
- (progn
- (beginning-of-line)
- (eq (get-text-property (setq beg (point)) 'syntax-type)
- 'multiline)))
- (if (setq beg (cperl-beginning-of-property beg 'syntax-type))
- (goto-char beg)))
- (setq beg (point))
- (goto-char end)
- (while (and end
- (progn
- (or (bolp) (condition-case nil
- (forward-line 1)
- (error nil)))
- (eq (get-text-property (setq end (point)) 'syntax-type)
- 'multiline)))
- (setq end (next-single-property-change end 'syntax-type nil (point-max)))
- (goto-char end))
- (setq end (point)))
- (font-lock-default-fontify-region beg end loudly))
-
-(defvar cperl-d-l nil)
-(defun cperl-fontify-syntaxically (end)
- ;; Some vars for debugging only
- ;; (message "Syntaxifying...")
- (let ((dbg (point)) (iend end) (idone cperl-syntax-done-to)
- (istate (car cperl-syntax-state))
- start from-start edebug-backtrace-buffer)
- (if (eq cperl-syntaxify-by-font-lock 'backtrace)
- (progn
- (require 'edebug)
- (let ((f 'edebug-backtrace))
- (funcall f)))) ; Avoid compile-time warning
- (or cperl-syntax-done-to
- (setq cperl-syntax-done-to (point-min)
- from-start t))
- (setq start (if (and cperl-hook-after-change
- (not from-start))
- cperl-syntax-done-to ; Fontify without change; ignore start
- ;; Need to forget what is after `start'
- (min cperl-syntax-done-to (point))))
- (goto-char start)
- (beginning-of-line)
- (setq start (point))
- (and cperl-syntaxify-unwind
- (setq end (cperl-unwind-to-safe t end)
- start (point)))
- (and (> end start)
- (setq cperl-syntax-done-to start) ; In case what follows fails
- (cperl-find-pods-heres start end t nil t))
- (if (memq cperl-syntaxify-by-font-lock '(backtrace message))
- (message "Syxify req=%s..%s actual=%s..%s done-to: %s=>%s statepos: %s=>%s"
- dbg iend start end idone cperl-syntax-done-to
- istate (car cperl-syntax-state))) ; For debugging
- nil)) ; Do not iterate
-
-(defun cperl-fontify-update (end)
- (let ((pos (point-min)) prop posend)
- (setq end (point-max))
- (while (< pos end)
- (setq prop (get-text-property pos 'cperl-postpone)
- posend (next-single-property-change pos 'cperl-postpone nil end))
- (and prop (put-text-property pos posend (car prop) (cdr prop)))
- (setq pos posend)))
- nil) ; Do not iterate
-
-(defun cperl-fontify-update-bad (end)
- ;; Since fontification happens with different region than syntaxification,
- ;; do to the end of buffer, not to END;;; likewise, start earlier if needed
- (let* ((pos (point)) (prop (get-text-property pos 'cperl-postpone)) posend)
- (if prop
- (setq pos (or (cperl-beginning-of-property
- (cperl-1+ pos) 'cperl-postpone)
- (point-min))))
- (while (< pos end)
- (setq posend (next-single-property-change pos 'cperl-postpone))
- (and prop (put-text-property pos posend (car prop) (cdr prop)))
- (setq pos posend)
- (setq prop (get-text-property pos 'cperl-postpone))))
- nil) ; Do not iterate
-
-;; Called when any modification is made to buffer text.
-(defun cperl-after-change-function (beg end old-len)
- ;; We should have been informed about changes by `font-lock'. Since it
- ;; does not inform as which calls are defered, do it ourselves
- (if cperl-syntax-done-to
- (setq cperl-syntax-done-to (min cperl-syntax-done-to beg))))
-
-(defun cperl-update-syntaxification (from to)
- (if (and cperl-use-syntax-table-text-property
- cperl-syntaxify-by-font-lock
- (or (null cperl-syntax-done-to)
- (< cperl-syntax-done-to to)))
- (progn
- (save-excursion
- (goto-char from)
- (cperl-fontify-syntaxically to)))))
-
-(defvar cperl-version
- (let ((v "$Revision: 5.16 $"))
- (string-match ":\\s *\\([0-9.]+\\)" v)
- (substring v (match-beginning 1) (match-end 1)))
- "Version of IZ-supported CPerl package this file is based on.")
-
-(provide 'cperl-mode)
-
-;;; cperl-mode.el ends here
projects / lib.git / blobdiff