1 ;;;; tex.scm -- implement Scheme output routines for TeX
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--2004 Jan Nieuwenhuizen <janneke@gnu.org>
6 ;;;; Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 ;; (debug-enable 'backtrace)
11 ;; The public interface is tight.
12 ;; It has to be, because user-code is evalled with this module.
14 ;; ***It should also be clean, well defined, documented and reviewed***
16 ;; To be reasonably safe, you probably do not want to use the TeX
17 ;; backend anyway, but rather the PostScript backend. You may want
18 ;; to run gs in a uml sandbox too.
21 (define-module (scm output-tex)
49 (use-modules (ice-9 regex)
71 (define (dot x y radius)
72 (embedded-ps (list 'dot x y radius)))
74 (define (beam width slope thick blot)
75 (embedded-ps (list 'beam width slope thick blot)))
77 (define (bracket arch_angle arch_width arch_height height arch_thick thick)
78 (embedded-ps (list 'bracket arch_angle arch_width arch_height height arch_thick thick)))
80 (define (dashed-slur thick dash l)
81 (embedded-ps (list 'dashed-slur thick dash `(quote ,l))))
84 (string-append "\\" (tex-font-command font)
85 "\\char" (ly:inexact->string i 10) " "))
87 (define (dashed-line thick on off dx dy)
88 (embedded-ps (list 'dashed-line thick on off dx dy)))
90 (define (zigzag-line centre? zzw zzh thick dx dy)
91 (embedded-ps (list 'zigzag-line centre? zzw zzh thick dx dy)))
93 (define (symmetric-x-triangle t w h)
94 (embedded-ps (list 'symmetric-x-triangle t w h)))
97 (define (ez-ball c l b)
98 (embedded-ps (list 'ez-ball c l b)))
102 (define (embedded-ps expr)
104 (with-output-to-string
105 (lambda () (ps-output-expression expr (current-output-port))))))
106 (string-append "\\embeddedps{" ps-string "}")))
109 (define (repeat-slash w a t)
110 (embedded-ps (list 'repeat-slash w a t)))
114 (define (number->dim x)
116 ;;ugh ly:* in backend needs compatibility func for standalone output
117 (ly:number->string x) " \\outputscale "))
119 (define (placebox x y s)
121 "\\lyitem{" (ly:number->string x) "}{" (ly:number->string y) "}{" s "}%\n"))
123 (define (bezier-sandwich l thick)
124 (embedded-ps (list 'bezier-sandwich `(quote ,l) thick)))
126 ;; WTF is this in every backend?
127 (define (horizontal-line x1 x2 th)
128 (filledbox (- x1) (- x2 x1) (* .5 th) (* .5 th)))
130 (define (filledbox breapth width depth height)
131 (if (and #f (defined? 'ps-testing))
133 (string-append (ly:numbers->string (list breapth width depth height))
135 (string-append "\\lyvrule{"
136 (ly:number->string (- breapth)) "}{"
137 (ly:number->string (+ breapth width)) "}{"
138 (ly:number->string depth) "}{"
139 (ly:number->string height) "}")))
141 (define (round-filled-box x y width height blotdiam)
142 (embedded-ps (list 'round-filled-box x y width height blotdiam)))
144 (define (text font s)
146 ((mapping #f) ;; (assoc-get 'char-mapping (ly:font-encoding-alist font))))
149 ;; TODO: we'd better do this for PS only
150 ;; LaTeX gets in the way, and we need to remap
151 ;; nonprintable chars.
153 (input-enc-name #f) ;; (assoc-get 'input-name (ly:font-encoding-alist font) ))
156 (string-append "\\hbox{\\" (tex-font-command font)
157 (if (string? input-enc-name)
158 (string-append "\\inputencoding{" input-enc-name "}")
161 (if (vector? mapping)
162 (reencode-string mapping s)
167 (define (tuplet ht gapx dx dy thick dir)
168 (embedded-ps (list 'tuplet ht gapx dx dy thick dir)))
170 (define (polygon points blotdiameter)
171 (embedded-ps (list 'polygon `(quote ,points) blotdiameter)))
173 (define (draw-line thick fx fy tx ty)
174 (embedded-ps (list 'draw-line thick fx fy tx ty)))
176 (define (define-origin file line col)
177 (if (procedure? point-and-click)
178 (string-append "\\special{src:" ;;; \\string ?
179 (point-and-click line col file)
183 ;; no-origin not yet supported by Xdvi
184 (define (no-origin) "")