-;;;; backend-library.scm -- helpers for the backends.
+;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
-;;;; source file of the GNU LilyPond music typesetter
-;;;;
-;;;; (c) 2005--2009 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; Copyright (C) 2005--2011 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;;
+;;;; LilyPond 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 3 of the License, or
+;;;; (at your option) any later version.
+;;;;
+;;;; LilyPond 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 LilyPond. If not, see <http://www.gnu.org/licenses/>.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; backend helpers.
-(define-public (ly:system command . rest)
- (let* ((status 0)
- (dev-null "/dev/null")
- (silenced (if (or (ly:get-option 'verbose)
- (not (access? dev-null W_OK)))
- command
- (format #f "~a > ~a 2>&1 " command dev-null))))
- (if (ly:get-option 'verbose)
- (begin
- (ly:message (_ "Invoking `~a'...") command))
- (ly:progress "\n"))
-
- (set! status
- (if (pair? rest)
- (system-with-env silenced (car rest))
- (system silenced)))
-
+(use-modules (scm ps-to-png)
+ (scm paper-system)
+ (ice-9 optargs))
+
+(define-public (ly:system command)
+ (if (ly:get-option 'verbose)
+ (begin
+ (ly:message (_ "Invoking `~a'...") (string-join command)))
+ (ly:progress "\n"))
+ (let ((status (apply ly:spawn command)))
(if (> status 0)
(begin
(ly:message (_ "`~a' failed (~a)") command status)
;; hmmm. what's the best failure option?
(throw 'ly-file-failed)))))
-(define-public (system-with-env cmd env)
-
- "Execute CMD in fork, with ENV (a list of strings) as the environment"
- (let*
- ;; laziness: should use execle?
-
- ((pid (primitive-fork)))
- (if (= 0 pid)
- ;; child
- (begin
- (environ env)
- (system cmd))
-
- ;; parent
- (cdr (waitpid pid)))))
-
(define-public (sanitize-command-option str)
- "Kill dubious shell quoting"
+ "Kill dubious shell quoting."
(string-append
"\""
(dir-basename name ".ps" ".eps")
".pdf"))
(is-eps (string-match "\\.eps$" name))
- (paper-size-string (if is-eps
- "-dEPSCrop"
- (ly:format "-dDEVICEWIDTHPOINTS=~$\
- -dDEVICEHEIGHTPOINTS=~$"
- paper-width paper-height)))
-
- (cmd (simple-format #f
- "~a\
- ~a\
- ~a\
- ~a\
- -dCompatibilityLevel=1.4\
- -dNOPAUSE\
- -dBATCH\
- -r1200\
- -sDEVICE=pdfwrite\
- -sOutputFile=~S\
- -c .setpdfwrite\
- -f ~S\
-"
- (search-gs)
- (if (ly:get-option 'verbose) "" "-q")
- (if (or (ly:get-option 'gs-load-fonts)
- (ly:get-option 'gs-load-lily-fonts))
- "-dNOSAFER"
- "-dSAFER")
- paper-size-string
- pdf-name
- name)))
- ;; The wrapper on windows cannot handle `=' signs,
- ;; gs has a workaround with #.
- (if (eq? PLATFORM 'windows)
- (begin
- (set! cmd (string-regexp-substitute "=" "#" cmd))
- (set! cmd (string-regexp-substitute "-dSAFER " "" cmd))
- (if (access? pdf-name W_OK)
- (delete-file pdf-name))))
+ (*unspecified* (if #f #f))
+ (cmd
+ (remove (lambda (x) (eq? x *unspecified*))
+ (list
+ (search-gs)
+ (if (ly:get-option 'verbose) *unspecified* "-q")
+ (if (or (ly:get-option 'gs-load-fonts)
+ (ly:get-option 'gs-load-lily-fonts)
+ (eq? PLATFORM 'windows))
+ "-dNOSAFER"
+ "-dSAFER")
+
+ (if is-eps
+ "-dEPSCrop"
+ (ly:format "-dDEVICEWIDTHPOINTS=~$" paper-width))
+ (if is-eps
+ *unspecified*
+ (ly:format "-dDEVICEHEIGHTPOINTS=~$" paper-height))
+ "-dCompatibilityLevel=1.4"
+ "-dNOPAUSE"
+ "-dBATCH"
+ "-r1200"
+ "-sDEVICE=pdfwrite"
+ (string-append "-sOutputFile=" pdf-name)
+ "-c.setpdfwrite"
+ (string-append "-f" name)))))
(ly:message (_ "Converting to `~a'...") pdf-name)
(ly:progress "\n")
(ly:system cmd)))
-(use-modules (scm ps-to-png))
-
(define-public (postscript->png resolution paper-width paper-height name)
(let* ((verbose (ly:get-option 'verbose))
(rename-page-1 #f))
scope)))
(apply string-append (map output-scope scopes)))
+(define-public (relevant-book-systems book)
+ (let ((systems (ly:paper-book-systems book)))
+ ;; skip booktitles.
+ (if (and (not (ly:get-option 'include-book-title-preview))
+ (pair? systems)
+ (ly:prob-property (car systems) 'is-book-title #f))
+ (cdr systems)
+ systems)))
+
+(define-public (relevant-dump-systems systems)
+ (let ((to-dump-systems '()))
+ (for-each
+ (lambda (sys)
+ (if (or (paper-system-title? sys)
+ (not (pair? to-dump-systems))
+ (paper-system-title? (car to-dump-systems)))
+ (set! to-dump-systems (cons sys to-dump-systems))))
+ systems)
+ to-dump-systems))
+
+(define missing-stencil-list '())
+
+(define-public (backend-testing output-module)
+ (define (missing-stencil-expression name)
+ (begin
+ (ly:warning (_ "missing stencil expression `~S'") name)
+ ""))
+
+ (map (lambda (x)
+ (if (not (module-defined? output-module x))
+ (begin
+ (module-define! output-module x
+ (lambda* (#:optional y . z)
+ (missing-stencil-expression x)))
+ (set! missing-stencil-list (append (list x)
+ missing-stencil-list)))))
+ (ly:all-stencil-commands)))
+
+(define-public (remove-stencil-warnings output-module)
+ (for-each
+ (lambda (x)
+ (module-remove! output-module x))
+ missing-stencil-list))
+
+(define (filter-out pred? lst)
+ (filter (lambda (x) (not (pred? x))) lst))
+
+(define-public (font-name-split font-name)
+ "Return @code{(FONT-NAME . DESIGN-SIZE)} from @var{font-name} string
+or @code{#f}."
+ (let ((match (regexp-exec (make-regexp "(.*)-([0-9]*)") font-name)))
+ (if (regexp-match? match)
+ (cons (match:substring match 1) (match:substring match 2))
+ (cons font-name-designsize #f))))
+
+;; Example of a pango-physical-font
+;; ("Emmentaler-11" "/home/janneke/vc/lilypond/out/share/lilypond/current/fonts/otf/emmentaler-11.otf" 0)
+(define-public (pango-pf-font-name pango-pf)
+ "Return the font-name of the pango physical font @var{pango-pf}."
+ (list-ref pango-pf 0))
+(define-public (pango-pf-file-name pango-pf)
+ "Return the file-name of the pango physical font @var{pango-pf}."
+ (list-ref pango-pf 1))
+(define-public (pango-pf-fontindex pango-pf)
+ "Return the fontindex of the pango physical font @var{pango-pf}."
+ (list-ref pango-pf 2))
+
+(define (pango-font-name pango-font)
+ (let ((pf-fonts (ly:pango-font-physical-fonts pango-font)))
+ (if (pair? pf-fonts)
+ (pango-pf-font-name (car pf-fonts))
+ "")))
+
+(define-public (define-fonts paper define-font define-pango-pf)
+ "Return a string of all fonts used in @var{paper}, invoking the functions
+@var{define-font} and @var{define-pango-pf} for producing the actual font
+definition."
+
+ (let* ((font-list (ly:paper-fonts paper))
+ (pango-fonts (filter ly:pango-font? font-list))
+ (other-fonts (filter-out ly:pango-font? font-list))
+ (other-font-names (map ly:font-name other-fonts))
+ (pango-only-fonts
+ (filter-out (lambda (x)
+ (member (pango-font-name x) other-font-names))
+ pango-fonts)))
+
+ (define (font-load-command font)
+ (let* ((font-name (ly:font-name font))
+ (designsize (ly:font-design-size font))
+ (magnification (* (ly:font-magnification font)))
+ (ops (ly:output-def-lookup paper 'output-scale))
+ (scaling (* ops magnification designsize)))
+ (if (equal? font-name "unknown")
+ (display (list font font-name)))
+ (define-font font font-name scaling)))
+
+ (define (pango-font-load-command pango-font)
+ (let* ((pf-fonts (ly:pango-font-physical-fonts pango-font))
+ (pango-pf (if (pair? pf-fonts) (car pf-fonts) '("" "" 0)))
+ (font-name (pango-pf-font-name pango-pf))
+ (scaling (ly:output-def-lookup paper 'output-scale)))
+ (if (equal? font-name "unknown")
+ (display (list pango-font font-name)))
+ (define-pango-pf pango-pf font-name scaling)))
+
+ (string-append
+ (apply string-append (map font-load-command other-fonts))
+ (apply string-append (map pango-font-load-command pango-only-fonts)))))
projects / lilypond.git / blobdiff