1 ;;;; framework-tex.scm --
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 (define-module (scm framework-tex)
8 #:export (output-framework-tex
9 output-classic-framework-tex
12 (use-modules (ice-9 regex)
19 (define-public (sanitize-tex-string s) ;; todo: rename
20 (if (ly:get-option 'safe)
21 (regexp-substitute/global #f "\\\\"
22 (regexp-substitute/global #f "([{}])" "bla{}" 'pre "\\" 1 'post )
23 'pre "$\\backslash$" 'post)
27 (define (symbol->tex-key sym)
28 (regexp-substitute/global
29 #f "_" (sanitize-tex-string (symbol->string sym)) 'pre "X" 'post) )
31 (define (tex-number-def prefix key number)
33 "\\def\\" prefix (symbol->tex-key key) "{" number "}%\n"))
35 (define-public (tex-font-command font)
38 (string-encode-integer
39 (hashq (ly:font-filename font) 1000000))
41 (string-encode-integer
42 (inexact->exact (round (* 1000 (ly:font-magnification font)))))))
44 (define (font-load-command bookpaper font)
46 "\\font\\" (tex-font-command font) "="
47 (ly:font-filename font)
49 (ly:number->string (inexact->exact
51 (ly:font-magnification font)
52 (ly:bookpaper-outputscale bookpaper)))))
56 (define (define-fonts bookpaper)
58 "\\def\\lilypondpaperunit{mm}" ;; UGH. FIXME.
59 (tex-number-def "lilypondpaper" 'outputscale
60 (number->string (exact->inexact
61 (ly:bookpaper-outputscale bookpaper))))
62 (tex-string-def "lilypondpapersize" 'papersize
63 (eval 'papersize (ly:output-def-scope bookpaper)))
66 (map (lambda (x) (font-load-command bookpaper x))
67 (ly:bookpaper-fonts bookpaper)))))
69 (define (header-to-file fn key val)
70 (set! key (symbol->string key))
71 (if (not (equal? "-" fn))
72 (set! fn (string-append fn "." key)))
74 (format "Writing header field `~a' to `~a'..."
76 (if (equal? "-" fn) "<stdout>" fn)
81 (display val (open-file fn "w")))
82 (display "\n" (current-error-port))
85 (define (output-scopes scopes fields basename)
86 (define (output-scope scope)
91 (let ((val (if (variable-bound? var) (variable-ref var) ""))
94 (if (and (memq sym fields) (string? val))
95 (header-to-file basename sym val))
98 (apply string-append (map output-scope scopes)))
100 (define (tex-string-def prefix key str)
101 (if (equal? "" (sans-surrounding-whitespace (sanitize-tex-string str)))
102 (string-append "\\let\\" prefix (symbol->tex-key key) "\\undefined%\n")
103 (string-append "\\def\\" prefix (symbol->tex-key key)
104 "{" (sanitize-tex-string str) "}%\n")))
106 (define (header creator time-stamp bookpaper page-count classic?)
107 (let ((scale (ly:output-def-lookup bookpaper 'outputscale)))
110 "% Generated by " creator "\n"
111 "% at " time-stamp "\n"
113 (tex-string-def "lilypond" 'classic "1")
117 "lilypondpaper" 'linewidth
118 (ly:number->string (* scale (ly:output-def-lookup bookpaper 'linewidth))))
121 "lilypondpaper" 'interscoreline
123 (* scale (ly:output-def-lookup bookpaper 'interscoreline)))))))
127 "\\def\\scaletounit{ "
128 (number->string (cond
129 ((equal? (ly:unit) "mm") (/ 72.0 25.4))
130 ((equal? (ly:unit) "pt") (/ 72.0 72.27))
131 (else (error "unknown unit" (ly:unit)))))
133 "\\ifx\\lilypondstart\\undefined\n"
134 " \\input lilyponddefs\n"
136 "\\outputscale = \\lilypondpaperoutputscale\\lilypondpaperunit\n"
138 "\\lilypondspecial\n"
139 "\\lilypondpostscript\n"))
141 (define (dump-page putter page)
142 (ly:outputter-dump-string
144 "\n\\vbox to 0pt{%\n\\leavevmode\n\\lybox{0}{0}{0}{0}{%\n")
145 (ly:outputter-dump-stencil putter (ly:page-stencil page))
146 (ly:outputter-dump-string
148 (if (ly:page-last? page)
149 "}\\vss\n}\n\\vfill\n"
150 "}\\vss\n}\n\\vfill\\lilypondpagebreak\n")))
152 (define-public (output-framework-tex outputter book scopes fields basename)
153 (let* ((bookpaper (ly:paper-book-book-paper book))
154 (pages (ly:paper-book-pages book)))
157 (ly:outputter-dump-string outputter x))
159 (header "creator" "timestamp" bookpaper (length pages) #f)
160 (define-fonts bookpaper)
162 (for-each (lambda (page) (dump-page outputter page)) pages)
163 (ly:outputter-dump-string outputter "\\lilypondend\n")))
165 (define (dump-line putter line last?)
166 (ly:outputter-dump-string
168 (string-append "\\leavevmode\n\\lybox{0}{0}{0}{"
169 (ly:number->string (ly:paper-line-extent line Y))
172 (ly:outputter-dump-stencil putter (ly:paper-line-stencil line))
173 (ly:outputter-dump-string
177 "}\\interscoreline\n")))
179 (define-public (output-classic-framework-tex
180 outputter book scopes fields basename)
181 (let* ((bookpaper (ly:paper-book-book-paper book))
182 (lines (ly:paper-book-lines book))
183 (last-line (car (last-pair lines))))
186 (ly:outputter-dump-string outputter x))
189 (header "creator" "timestamp" bookpaper (length lines) #f)
190 "\\def\\lilypondclassic{1}%\n"
191 (output-scopes scopes fields basename)
192 (define-fonts bookpaper)
196 (lambda (line) (dump-line outputter line (eq? line last-line))) lines)
197 (ly:outputter-dump-string outputter "\\lilypondend\n")))