X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Fbackend-library.scm;h=a8899e83f1b28023151212b57c503258fbb79c44;hb=0b544cfb7332615ef809b71b57ab656741311ae1;hp=45b156a6c8d84a67a46ef4159f7d5f158b78a5e6;hpb=157d98c1870868bf59c1691577444e3c3d533bc4;p=lilypond.git diff --git a/scm/backend-library.scm b/scm/backend-library.scm index 45b156a6c8..a8899e83f1 100644 --- a/scm/backend-library.scm +++ b/scm/backend-library.scm @@ -1,54 +1,40 @@ -;;;; 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--2007 Jan Nieuwenhuizen +;;;; Copyright (C) 2005--2014 Jan Nieuwenhuizen ;;;; Han-Wen Nienhuys +;;;; +;;;; 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 . -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; 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) - (ly:message (_ "Invoking `~a'...") command)) - - (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) + (ly:debug (_ "Invoking `~a'...") (string-join command)) + (let ((status (apply ly:spawn command))) (if (> status 0) - (begin - (ly:message (_ "`~a' failed (~a)") command status) - (ly:progress "\n") - ;; 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))))) + (begin + (ly:warning (_ "`~a' failed (~a)\n") command status) + ;; hmmm. what's the best failure option? + (throw 'ly-file-failed))))) (define-public (sanitize-command-option str) - "Kill dubious shell quoting" - + "Kill dubious shell quoting." + (string-append "\"" (regexp-substitute/global #f "[^-_ 0-9,.a-zA-Z'\"\\]" str 'pre 'post) @@ -57,98 +43,84 @@ (define-public (search-executable names) (define (helper path lst) (if (null? (cdr lst)) - (car lst) - (if (search-path path (car lst)) (car lst) - (helper path (cdr lst))))) + (car lst) + (if (search-path path (car lst)) (car lst) + (helper path (cdr lst))))) (let ((path (parse-path (getenv "PATH")))) (helper path names))) (define-public (search-gs) - + ;; must be sure that we don't catch stuff from old GUBs. (search-executable '("gs"))) - + (define-public (postscript->pdf paper-width paper-height name) (let* ((pdf-name (string-append - (basename (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)) - - (ly:message (_ "Converting to `~a'...") pdf-name) - (ly:progress "\n") - (ly:system cmd))) + (dir-basename name ".ps" ".eps") + ".pdf")) + (is-eps (string-match "\\.eps$" name)) + (*unspecified* (if #f #f)) + (cmd + (remove (lambda (x) (eq? x *unspecified*)) + (list + (search-gs) + (if (ly:get-option 'verbose) *unspecified* "-q") + (if (or (ly:get-option 'gs-load-fonts) + (ly:get-option 'gs-load-lily-fonts) + (eq? PLATFORM 'windows)) + "-dNOSAFER" + "-dSAFER") + + (if is-eps + "-dEPSCrop" + (ly:format "-dDEVICEWIDTHPOINTS=~$" paper-width)) + (if is-eps + *unspecified* + (ly:format "-dDEVICEHEIGHTPOINTS=~$" paper-height)) + "-dCompatibilityLevel=1.4" + "-dNOPAUSE" + "-dBATCH" + "-r1200" + "-sDEVICE=pdfwrite" + (string-append "-sOutputFile=" + (string-join + (string-split pdf-name #\%) + "%%")) + "-c.setpdfwrite" + (string-append "-f" name))))) -(use-modules (scm ps-to-png)) + (ly:message (_ "Converting to `~a'...\n") pdf-name) + (ly:system cmd))) (define-public (postscript->png resolution paper-width paper-height name) + (let* ((verbose (ly:get-option 'verbose)) + (rename-page-1 #f)) + ;; Do not try to guess the name of the png file, ;; GS produces PNG files like BASE-page%d.png. - ;;(ly:message (_ "Converting to `~a'...") - ;; (string-append (basename name ".ps") "-page1.png" ))) - (let* ((verbose (ly:get-option 'verbose)) - (rename-page-1 #f)) (ly:message (_ "Converting to ~a...") "PNG") (make-ps-images name - #:resolution resolution - #:page-width paper-width - #:page-height paper-height - #:rename-page-1 rename-page-1 - #:be-verbose verbose - #:anti-alias-factor (ly:get-option 'anti-alias-factor) - #:pixmap-format (ly:get-option 'pixmap-format)) + #:resolution resolution + #:page-width paper-width + #:page-height paper-height + #:rename-page-1 rename-page-1 + #:be-verbose verbose + #:anti-alias-factor (ly:get-option 'anti-alias-factor) + #:pixmap-format (ly:get-option 'pixmap-format)) (ly:progress "\n"))) (define-public (postprocess-output paper-book module filename formats) (let* ((completed (completize-formats formats)) - (base (string-regexp-substitute "\\.[a-z]+$" "" filename)) - (intermediate (remove (lambda (x) (member x formats)) completed))) - + (base (dir-basename filename ".ps" ".eps")) + (intermediate (remove (lambda (x) (member x formats)) completed))) (for-each (lambda (f) - ((eval (string->symbol (format "convert-to-~a" f)) - module) paper-book filename)) completed) + ((eval (string->symbol (format #f "convert-to-~a" f)) + module) paper-book filename)) completed) (if (ly:get-option 'delete-intermediate-files) - (for-each (lambda (f) - (delete-file (string-append base "." f))) intermediate)))) + (for-each (lambda (f) + (if (file-exists? f) (delete-file f))) + (map (lambda (x) (string-append base "." x)) intermediate))))) (define-public (completize-formats formats) (define new-fmts '()) @@ -157,8 +129,8 @@ (if (member "pdf" formats) (set! formats (cons "ps" formats))) (for-each (lambda (x) - (if (member x formats) (set! new-fmts (cons x new-fmts)))) - '("tex" "dvi" "ps" "pdf" "png")) + (if (member x formats) (set! new-fmts (cons x new-fmts)))) + '("ps" "pdf" "png")) (uniq-list (reverse new-fmts))) (define (header-to-file file-name key value) @@ -166,27 +138,134 @@ (if (not (equal? "-" file-name)) (set! file-name (string-append file-name "." key))) (ly:message (_ "Writing header field `~a' to `~a'...") - key - (if (equal? "-" file-name) "" file-name)) + key + (if (equal? "-" file-name) "" file-name)) (if (equal? file-name "-") (display value) (let ((port (open-file file-name "w"))) - (display value port) - (close-port port))) + (display value port) + (close-port port))) (ly:progress "\n") "") (define-public (output-scopes scopes fields basename) (define (output-scope scope) - (apply - string-append + (string-concatenate (module-map (lambda (sym var) - (let ((val (if (variable-bound? var) (variable-ref var) ""))) - (if (and (memq sym fields) (string? val)) - (header-to-file basename sym val)) - "")) + (let ((val (if (variable-bound? var) (variable-ref var) ""))) + (if (and (memq sym fields) (string? val)) + (header-to-file basename sym val)) + "")) scope))) - (apply string-append (map output-scope scopes))) + (string-concatenate (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) + "")) + + (for-each (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 (cons 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 + (string-concatenate (map font-load-command other-fonts)) + (string-concatenate (map pango-font-load-command pango-only-fonts)))))