aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorKenichi Handa1998-12-15 06:38:12 +0000
committerKenichi Handa1998-12-15 06:38:12 +0000
commit2cb842aeec54fc9234f62fbc3b35cd99ef0a3776 (patch)
treee8da9908263a4005de0d542f38f4aead0ad82bdb
parent9c423e6b0488e3554c20bd303606cc883d1fd471 (diff)
downloademacs-2cb842aeec54fc9234f62fbc3b35cd99ef0a3776.tar.gz
emacs-2cb842aeec54fc9234f62fbc3b35cd99ef0a3776.zip
New file. Mule related code extracted from
ps-print.el. Require ps-print, provide ps-mule. (ps-multibyte-buffer): Add autoload cookie. (ps-mule-prepare-ascii-font): New fun. (ps-mule-set-ascii-font): New fun. (ps-mule-skip-same-charset): Fun deleted. (ps-mule-plot-string): Set ps-mule-current-charset. (ps-mule-initialize): Add autload cookie. Don't set ps-mule-font-info-database here. (ps-mule-begin-job): Renamed from ps-mule-begin. Update ps-mule-font-info-database and ps-control-or-escape-regexp. (ps-mule-begin-page): New fun. Doc fix. Require ps-print only when compiled. (ps-mule-prologue-generated): New fun. (ps-mule-plot-string): Add autoload cookie. (ps-mule-begin-job): Call ps-mule-prologue-generated. Programming uniformization and little code improvement. (ps-mule-prepare-font): Programming uniformization. (ps-mule-find-wrappoint, ps-mule-plot-rule-cmpchar) (ps-mule-string-encoding, ps-mule-begin-job): Little code improvement. Always require ps-print. Move some function definitions for Emacs 20.2 and the earlier to ps-print.el. (ps-mule-find-wrappoint): Make it work also with Emacs 20.2. (ps-mule-begin-job): Delete nil and unknown from a list of character sets found by find-charset-region.
-rw-r--r--lisp/ps-mule.el1156
1 files changed, 1156 insertions, 0 deletions
diff --git a/lisp/ps-mule.el b/lisp/ps-mule.el
index e69de29bb2d..49dac6b89fb 100644
--- a/lisp/ps-mule.el
+++ b/lisp/ps-mule.el
@@ -0,0 +1,1156 @@
1;;; ps-mule.el --- Provide multi-byte character facility to ps-print.
2
3;; Copyright (C) 1998 Free Software Foundation, Inc.
4
5;; Author: Vinicius Jose Latorre <vinicius@cpqd.com.br>
6;; Author: Kenichi Handa <handa@etl.go.jp> (multi-byte characters)
7;; Maintainer: Kenichi Handa <handa@etl.go.jp> (multi-byte characters)
8;; Maintainer: Vinicius Jose Latorre <vinicius@cpqd.com.br>
9;; Keywords: print, PostScript, multibyte, mule
10;; Time-stamp: <98/12/15 14:04:50 handa>
11
12;; This file is part of GNU Emacs.
13
14;; GNU Emacs is free software; you can redistribute it and/or modify
15;; it under the terms of the GNU General Public License as published by
16;; the Free Software Foundation; either version 2, or (at your option)
17;; any later version.
18
19;; GNU Emacs is distributed in the hope that it will be useful,
20;; but WITHOUT ANY WARRANTY; without even the implied warranty of
21;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22;; GNU General Public License for more details.
23
24;; You should have received a copy of the GNU General Public License
25;; along with GNU Emacs; see the file COPYING. If not, write to the
26;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
27;; Boston, MA 02111-1307, USA.
28
29;;; Commentary:
30
31;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
32;;
33;; About ps-mule
34;; -------------
35;;
36;; This package is used for ps-print to print multi-byte buffer.
37;;
38;; See also ps-print.el.
39;;
40;;
41;; Printing Multi-byte Buffer
42;; --------------------------
43;;
44;; The variable `ps-multibyte-buffer' specifies the ps-print multi-byte buffer
45;; handling.
46;;
47;; Valid values for `ps-multibyte-buffer' are:
48;;
49;; nil This is the value to use when you are printing
50;; buffer with only ASCII and Latin characters.
51;;
52;; `non-latin-printer' This is the value to use when you have a japanese
53;; or korean PostScript printer and want to print
54;; buffer with ASCII, Latin-1, Japanese (JISX0208 and
55;; JISX0201-Kana) and Korean characters. At present,
56;; it was not tested the Korean characters printing.
57;; If you have a korean PostScript printer, please,
58;; test it.
59;;
60;; `bdf-font' This is the value to use when you want to print
61;; buffer with BDF fonts. BDF fonts include both latin
62;; and non-latin fonts. BDF (Bitmap Distribution
63;; Format) is a format used for distributing X's font
64;; source file. BDF fonts are included in
65;; `intlfonts-1.1' which is a collection of X11 fonts
66;; for all characters supported by Emacs. In order to
67;; use this value, be sure to have installed
68;; `intlfonts-1.1' and set the variable
69;; `bdf-directory-list' appropriately (see ps-bdf.el
70;; for documentation of this variable).
71;;
72;; `bdf-font-except-latin' This is like `bdf-font' except that it is used
73;; PostScript default fonts to print ASCII and Latin-1
74;; characters. This is convenient when you want or
75;; need to use both latin and non-latin characters on
76;; the same buffer. See `ps-font-family',
77;; `ps-header-font-family' and `ps-font-info-database'.
78;;
79;; Any other value is treated as nil.
80;;
81;; The default is nil.
82;;
83;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
84
85;;; Code:
86
87(eval-and-compile (require 'ps-print))
88
89;;;###autoload
90(defcustom ps-multibyte-buffer nil
91 "*Specifies the multi-byte buffer handling.
92
93Valid values are:
94
95 nil This is the value to use when you are printing
96 buffer with only ASCII and Latin characters.
97
98 `non-latin-printer' This is the value to use when you have a japanese
99 or korean PostScript printer and want to print
100 buffer with ASCII, Latin-1, Japanese (JISX0208 and
101 JISX0201-Kana) and Korean characters. At present,
102 it was not tested the Korean characters printing.
103 If you have a korean PostScript printer, please,
104 test it.
105
106 `bdf-font' This is the value to use when you want to print
107 buffer with BDF fonts. BDF fonts include both latin
108 and non-latin fonts. BDF (Bitmap Distribution
109 Format) is a format used for distributing X's font
110 source file. BDF fonts are included in
111 `intlfonts-1.1' which is a collection of X11 fonts
112 for all characters supported by Emacs. In order to
113 use this value, be sure to have installed
114 `intlfonts-1.1' and set the variable
115 `bdf-directory-list' appropriately (see ps-bdf.el for
116 documentation of this variable).
117
118 `bdf-font-except-latin' This is like `bdf-font' except that it is used
119 PostScript default fonts to print ASCII and Latin-1
120 characters. This is convenient when you want or
121 need to use both latin and non-latin characters on
122 the same buffer. See `ps-font-family',
123 `ps-header-font-family' and `ps-font-info-database'.
124
125Any other value is treated as nil."
126 :type '(choice (const non-latin-printer) (const bdf-font)
127 (const bdf-font-except-latin) (other :tag "nil" nil))
128 :group 'ps-print-font)
129
130;; For Emacs 20.2 and the earlier version.
131(eval-and-compile
132 (if (not (string< mule-version "4.0"))
133 (progn
134 (defalias 'ps-mule-next-point '1+)
135 (defalias 'ps-mule-chars-in-string 'length)
136 (defalias 'ps-mule-string-char 'aref)
137 (defsubst ps-mule-next-index (str i) (1+ i)))
138 (defun ps-mule-next-point (arg)
139 (save-excursion (goto-char arg) (forward-char 1) (point)))
140 (defun ps-mule-chars-in-string (string)
141 (/ (length string)
142 (charset-bytes (char-charset (string-to-char string)))))
143 (defun ps-mule-string-char (string idx)
144 (string-to-char (substring string idx)))
145 (defun ps-mule-next-index (string i)
146 (+ i (charset-bytes (char-charset (string-to-char string))))))
147 )
148
149(defvar ps-mule-font-info-database
150 nil
151 "Alist of charsets with the corresponding font information.
152Each element has the form:
153
154 (CHARSET (FONT-TYPE FONT-SRC FONT-NAME ENCODING BYTES) ...)
155
156Where
157
158CHARSET is a charset (symbol) for this font family,
159
160FONT-TYPE is a font type: normal, bold, italic, or bold-italic.
161
162FONT-SRC is a font source: builtin, ps-bdf, vflib, or nil.
163
164 If FONT-SRC is builtin, FONT-NAME is a buitin PostScript font name.
165
166 If FONT-SRC is bdf, FONT-NAME is a BDF font file name. To use this font,
167 the external library `ps-bdf' is required.
168
169 If FONT-SRC is vflib, FONT-NAME is the name of a font that VFlib knows.
170 To use this font, the external library `vflib' is required.
171
172 If FONT-SRC is nil, a proper ASCII font in the variable
173 `ps-font-info-database' is used. This is useful for Latin-1 characters.
174
175ENCODING is a coding system to encode a string of characters of CHARSET into a
176proper string matching an encoding of the specified font. ENCODING may be a
177function that does this encoding. In this case, the function is called with
178one argument, the string to encode, and it should return an encoded string.
179
180BYTES specifies how many bytes each character has in the encoded byte
181sequence; it should be 1 or 2.
182
183All multi-byte characters are printed by fonts specified in this database
184regardless of a font family of ASCII characters. The exception is Latin-1
185characters which are printed by the same font as ASCII characters, thus obey
186font family.
187
188See also the variable `ps-font-info-database'.")
189
190(defconst ps-mule-font-info-database-latin
191 '((latin-iso8859-1
192 (normal nil nil iso-latin-1)))
193 "Sample setting of `ps-mule-font-info-database' to use latin fonts.")
194
195(defconst ps-mule-font-info-database-ps
196 '((katakana-jisx0201
197 (normal builtin "Ryumin-Light.Katakana" ps-mule-encode-7bit 1)
198 (bold builtin "GothicBBB-Medium.Katakana" ps-mule-encode-7bit 1)
199 (bold-italic builtin "GothicBBB-Medium.Katakana" ps-mule-encode-7bit 1))
200 (latin-jisx0201
201 (normat builtin "Ryumin-Light.Hankaku" ps-mule-encode-7bit 1)
202 (bold builtin "GothicBBB-Medium.Hankaku" ps-mule-encode-7bit 1))
203 (japanese-jisx0208
204 (normal builtin "Ryumin-Light-H" ps-mule-encode-7bit 2)
205 (bold builtin "GothicBBB-Medium-H" ps-mule-encode-7bit 2))
206 (korean-ksc5601
207 (normal builtin "Batang-Medium-KSC-H" ps-mule-encode-7bit 2)
208 (bold builtin " Gulim-Medium-KSC-H" ps-mule-encode-7bit 2))
209 )
210 "Sample setting of the `ps-mule-font-info-database' to use builtin PS font.
211
212Currently, data for Japanese and Korean PostScript printers are listed.")
213
214(defconst ps-mule-font-info-database-bdf
215 '((ascii
216 (normal bdf "etl24-latin1.bdf" nil 1)
217 (bold bdf "etl16b-latin1.bdf" iso-latin-1 1)
218 (italic bdf "etl16i-latin1.bdf" iso-latin-1 1)
219 (bold-italic bdf "etl16bi-latin1.bdf" iso-latin-1 1))
220 (latin-iso8859-1
221 (normal bdf "etl24-latin1.bdf" iso-latin-1 1)
222 (bold bdf "etl16b-latin1.bdf" iso-latin-1 1)
223 (italic bdf "etl16i-latin1.bdf" iso-latin-1 1)
224 (bold-italic bdf "etl16bi-latin1.bdf" iso-latin-1 1))
225 (latin-iso8859-2
226 (normal bdf "etl24-latin2.bdf" iso-latin-2 1))
227 (latin-iso8859-3
228 (normal bdf "etl24-latin3.bdf" iso-latin-3 1))
229 (latin-iso8859-4
230 (normal bdf "etl24-latin4.bdf" iso-latin-4 1))
231 (thai-tis620
232 (normal bdf "thai-24.bdf" thai-tis620 1))
233 (greek-iso8859-7
234 (normal bdf "etl24-greek.bdf" greek-iso-8bit 1))
235 ;; (arabic-iso8859-6 nil) ; not yet available
236 (hebrew-iso8859-8
237 (normal bdf "etl24-hebrew.bdf" hebrew-iso-8bit 1))
238 (katakana-jisx0201
239 (normal bdf "12x24rk.bdf" ps-mule-encode-8bit 1))
240 (latin-jisx0201
241 (normal bdf "12x24rk.bdf" ps-mule-encode-7bit 1))
242 (cyrillic-iso8859-5
243 (normal bdf "etl24-cyrillic.bdf" cyrillic-iso-8bit 1))
244 (latin-iso8859-9
245 (normal bdf "etl24-latin5.bdf" iso-latin-5 1))
246 (japanese-jisx0208-1978
247 (normal bdf "jiskan24.bdf" ps-mule-encode-7bit 2))
248 (chinese-gb2312
249 (normal bdf "gb24st.bdf" ps-mule-encode-7bit 2))
250 (japanese-jisx0208
251 (normal bdf "jiskan24.bdf" ps-mule-encode-7bit 2))
252 (korean-ksc5601
253 (normal bdf "hanglm24.bdf" ps-mule-encode-7bit 2))
254 (japanese-jisx0212
255 (normal bdf "jisksp40.bdf" ps-mule-encode-7bit 2))
256 (chinese-cns11643-1
257 (normal bdf "cns-1-40.bdf" ps-mule-encode-7bit 2))
258 (chinese-cns11643-2
259 (normal bdf "cns-2-40.bdf" ps-mule-encode-7bit 2))
260 (chinese-big5-1
261 (normal bdf "taipei24.bdf" chinese-big5 2))
262 (chinese-big5-2
263 (normal bdf "taipei24.bdf" chinese-big5 2))
264 (chinese-sisheng
265 (normal bdf "etl24-sisheng.bdf" ps-mule-encode-8bit 1))
266 (ipa
267 (normal bdf "etl24-ipa.bdf" ps-mule-encode-8bit 1))
268 (vietnamese-viscii-lower
269 (normal bdf "etl24-viscii.bdf" vietnamese-viscii 1))
270 (vietnamese-viscii-upper
271 (normal bdf "etl24-viscii.bdf" vietnamese-viscii 1))
272 (arabic-digit
273 (normal bdf "etl24-arabic0.bdf" ps-mule-encode-7bit 1))
274 (arabic-1-column
275 (normal bdf "etl24-arabic1.bdf" ps-mule-encode-7bit 1))
276 ;; (ascii-right-to-left nil) ; not yet available
277 (lao
278 (normal bdf "mule-lao-24.bdf" lao 1))
279 (arabic-2-column
280 (normal bdf "etl24-arabic2.bdf" ps-mule-encode-7bit 1))
281 (indian-is13194
282 (normal bdf "mule-iscii-24.bdf" ps-mule-encode-7bit 1))
283 (indian-1-column
284 (normal bdf "mule-indian-1col-24.bdf" ps-mule-encode-7bit 2))
285 (tibetan-1-column
286 (normal bdf "mule-tibmdx-1col-24.bdf" ps-mule-encode-7bit 2))
287 (ethiopic
288 (normal bdf "ethiomx24f-uni.bdf" ps-mule-encode-ethiopic 2))
289 (chinese-cns11643-3
290 (normal bdf "cns-3-40.bdf" ps-mule-encode-7bit 2))
291 (chinese-cns11643-4
292 (normal bdf "cns-4-40.bdf" ps-mule-encode-7bit 2))
293 (chinese-cns11643-5
294 (normal bdf "cns-5-40.bdf" ps-mule-encode-7bit 2))
295 (chinese-cns11643-6
296 (normal bdf "cns-6-40.bdf" ps-mule-encode-7bit 2))
297 (chinese-cns11643-7
298 (normal bdf "cns-7-40.bdf" ps-mule-encode-7bit 2))
299 (indian-2-column
300 (normal bdf "mule-indian-24.bdf" ps-mule-encode-7bit 2))
301 (tibetan
302 (normal bdf "mule-tibmdx-24.bdf" ps-mule-encode-7bit 2)))
303 "Sample setting of the `ps-mule-font-info-database' to use BDF fonts.
304BDF (Bitmap Distribution Format) is a format used for distributing X's font
305source file.
306
307Current default value list for BDF fonts is included in `intlfonts-1.1' which is
308a collection of X11 fonts for all characters supported by Emacs.
309
310Using this list as default value to `ps-mule-font-info-database', all characters
311including ASCII and Latin-1 are printed by BDF fonts.
312
313See also `ps-mule-font-info-database-ps-bdf'.")
314
315(defconst ps-mule-font-info-database-ps-bdf
316 (cons (car ps-mule-font-info-database-latin)
317 (cdr (cdr ps-mule-font-info-database-bdf)))
318 "Sample setting of the `ps-mule-font-info-database' to use BDF fonts.
319
320Current default value list for BDF fonts is included in `intlfonts-1.1' which is
321a collection of X11 fonts for all characters supported by Emacs.
322
323Using this list as default value to `ps-mule-font-info-database', all characters
324except ASCII and Latin-1 characters are printed by BDF fonts. ASCII and Latin-1
325characters are printed by PostScript font specified by `ps-font-family' and
326`ps-header-font-family'.
327
328See also `ps-mule-font-info-database-bdf'.")
329
330;; Two typical encoding functions for PostScript fonts.
331
332(defun ps-mule-encode-7bit (string)
333 (ps-mule-encode-bit string 0))
334
335(defun ps-mule-encode-8bit (string)
336 (ps-mule-encode-bit string 128))
337
338(defun ps-mule-encode-bit (string delta)
339 (let* ((dim (charset-dimension (char-charset (string-to-char string))))
340 (len (* (ps-mule-chars-in-string string) dim))
341 (str (make-string len 0))
342 (i 0)
343 (j 0))
344 (if (= dim 1)
345 (while (< j len)
346 (aset str j
347 (+ (nth 1 (split-char (ps-mule-string-char string i))) delta))
348 (setq i (ps-mule-next-index string i)
349 j (1+ j)))
350 (while (< j len)
351 (let ((split (split-char (ps-mule-string-char string i))))
352 (aset str j (+ (nth 1 split) delta))
353 (aset str (1+ j) (+ (nth 2 split) delta))
354 (setq i (ps-mule-next-index string i)
355 j (+ j 2)))))
356 str))
357
358;; Special encoding function for Ethiopic.
359(define-ccl-program ccl-encode-ethio-unicode
360 `(1
361 ((read r2)
362 (loop
363 (if (r2 == ,leading-code-private-22)
364 ((read r0)
365 (if (r0 == ,(charset-id 'ethiopic))
366 ((read r1 r2)
367 (r1 &= 127) (r2 &= 127)
368 (call ccl-encode-ethio-font)
369 (write r1)
370 (write-read-repeat r2))
371 ((write r2 r0)
372 (repeat))))
373 (write-read-repeat r2))))))
374
375(defun ps-mule-encode-ethiopic (string)
376 (ccl-execute-on-string (symbol-value 'ccl-encode-ethio-unicode)
377 (make-vector 9 nil)
378 string))
379
380;; A charset which we are now processing.
381(defvar ps-mule-current-charset nil)
382
383(defun ps-mule-get-font-spec (charset font-type)
384 "Return FONT-SPEC for printing characters CHARSET with FONT-TYPE.
385FONT-SPEC is a list that has the form:
386
387 (FONT-SRC FONT-NAME ENCODING BYTES)
388
389FONT-SPEC is extracted from `ps-mule-font-info-database'.
390
391See the documentation of `ps-mule-font-info-database' for the meaning of each
392element of the list."
393 (let ((slot (cdr (assq charset ps-mule-font-info-database))))
394 (and slot
395 (cdr (or (assq font-type slot)
396 (and (eq font-type 'bold-italic)
397 (or (assq 'bold slot) (assq 'italic slot)))
398 (assq 'normal slot))))))
399
400;; Functions to access each element of FONT-SPEC.
401(defsubst ps-mule-font-spec-src (font-spec) (car font-spec))
402(defsubst ps-mule-font-spec-name (font-spec) (nth 1 font-spec))
403(defsubst ps-mule-font-spec-encoding (font-spec) (nth 2 font-spec))
404(defsubst ps-mule-font-spec-bytes (font-spec) (nth 3 font-spec))
405
406(defsubst ps-mule-printable-p (charset)
407 "Non-nil if characters in CHARSET is printable."
408 (ps-mule-get-font-spec charset 'normal))
409
410(defconst ps-mule-external-libraries
411 '((builtin nil nil
412 nil nil nil)
413 (bdf ps-bdf nil
414 bdf-generate-prologue bdf-generate-font bdf-generate-glyphs)
415 (pcf nil nil
416 pcf-generate-prologue pcf-generate-font pcf-generate-glyphs)
417 (vflib nil nil
418 vflib-generate-prologue vflib-generate-font vflib-generate-glyphs))
419 "Alist of information of external libraries to support PostScript printing.
420Each element has the form:
421
422 (FONT-SRC FEATURE INITIALIZED-P PROLOGUE-FUNC FONT-FUNC GLYPHS-FUNC)
423
424FONT-SRC is the font source: builtin, bdf, pcf, or vflib.
425
426FEATURE is the feature that provide a facility to handle FONT-SRC. Except for
427`builtin' FONT-SRC, this feature is automatically `require'd before handling
428FONT-SRC. Currently, we only have the feature `ps-bdf'.
429
430INITIALIZED-P indicates if this library is initialized or not.
431
432PROLOGUE-FUNC is a function to generate PostScript code which define several
433PostScript procedures that will be called by FONT-FUNC and GLYPHS-FUNC. It is
434called with no argument, and should return a list of strings.
435
436FONT-FUNC is a function to generate PostScript code which define a new font. It
437is called with one argument FONT-SPEC, and should return a list of strings.
438
439GLYPHS-FUNC is a function to generate PostScript code which define glyphs of
440characters. It is called with three arguments FONT-SPEC, CODE-LIST, and BYTES,
441and should return a list of strings.")
442
443(defun ps-mule-init-external-library (font-spec)
444 "Initialize external library specified by FONT-SPEC for PostScript printing.
445See the documentation of `ps-mule-get-font-spec' for FONT-SPEC's meaning."
446 (let* ((font-src (ps-mule-font-spec-src font-spec))
447 (slot (assq font-src ps-mule-external-libraries)))
448 (or (not font-src)
449 (nth 2 slot)
450 (let ((func (nth 3 slot)))
451 (if func
452 (progn
453 (or (featurep (nth 1 slot)) (require (nth 1 slot)))
454 (ps-output-prologue (funcall func))))
455 (setcar (nthcdr 2 slot) t)))))
456
457;; Cached glyph information of fonts, alist of:
458;; (FONT-NAME ((FONT-TYPE-NUMBER . SCALED-FONT-NAME) ...)
459;; cache CODE0 CODE1 ...)
460(defvar ps-mule-font-cache nil)
461
462(defun ps-mule-generate-font (font-spec charset)
463 "Generate PostScript codes to define a new font in FONT-SPEC for CHARSET."
464 (let* ((font-cache (assoc (ps-mule-font-spec-name font-spec)
465 ps-mule-font-cache))
466 (font-src (ps-mule-font-spec-src font-spec))
467 (font-name (ps-mule-font-spec-name font-spec))
468 (func (nth 4 (assq font-src ps-mule-external-libraries)))
469 (scaled-font-name
470 (if (eq charset 'ascii)
471 (format "f%d" ps-current-font)
472 (format "f%02x-%d"
473 (charset-id charset) ps-current-font))))
474 (and func (not font-cache)
475 (ps-output-prologue (funcall func charset font-spec)))
476 (ps-output-prologue
477 (list (format "/%s %f /%s Def%sFontMule\n"
478 scaled-font-name ps-font-size font-name
479 (if (eq ps-mule-current-charset 'ascii) "Ascii" ""))))
480 (if font-cache
481 (setcar (cdr font-cache)
482 (cons (cons ps-current-font scaled-font-name)
483 (nth 1 font-cache)))
484 (setq font-cache (list font-name
485 (list (cons ps-current-font scaled-font-name))
486 'cache)
487 ps-mule-font-cache (cons font-cache ps-mule-font-cache)))
488 font-cache))
489
490(defun ps-mule-generate-glyphs (font-spec code-list)
491 "Generate PostScript codes which generate glyphs for CODE-LIST of FONT-SPEC."
492 (let* ((font-src (ps-mule-font-spec-src font-spec))
493 (func (nth 5 (assq font-src ps-mule-external-libraries))))
494 (and func
495 (ps-output-prologue
496 (funcall func font-spec code-list
497 (ps-mule-font-spec-bytes font-spec))))))
498
499(defun ps-mule-prepare-font (font-spec string charset &optional no-setfont)
500 "Generate PostScript codes to print STRING of CHARSET by font FONT-SPEC.
501
502The generated code is inserted on prologue part except the code that sets the
503current font (using PostScript procedure `FM').
504
505If optional arg NO-SETFONT is non-nil, don't generate the code for setting the
506current font."
507 (let ((font-cache (assoc (ps-mule-font-spec-name font-spec)
508 ps-mule-font-cache)))
509 (or (and font-cache (assq ps-current-font (nth 1 font-cache)))
510 (setq font-cache (ps-mule-generate-font font-spec charset)))
511 (or no-setfont
512 (let ((new-font (cdr (assq ps-current-font (nth 1 font-cache)))))
513 (or (equal new-font ps-last-font)
514 (progn
515 (ps-output (format "/%s FM\n" new-font))
516 (setq ps-last-font new-font)))))
517 (if (nth 5 (assq (ps-mule-font-spec-src font-spec)
518 ps-mule-external-libraries))
519 ;; We have to generate PostScript codes which define glyphs.
520 (let* ((cached-codes (nthcdr 2 font-cache))
521 (bytes (ps-mule-font-spec-bytes font-spec))
522 (len (length string))
523 (i 0)
524 newcodes code)
525 (while (< i len)
526 (setq code (if (= bytes 1)
527 (aref string i)
528 (+ (* (aref string i) 256) (aref string (1+ i)))))
529 (or (memq code cached-codes)
530 (progn
531 (setq newcodes (cons code newcodes))
532 (setcdr cached-codes (cons code (cdr cached-codes)))))
533 (setq i (+ i bytes)))
534 (and newcodes
535 (ps-mule-generate-glyphs font-spec newcodes))))))
536
537;;;###autoload
538(defun ps-mule-prepare-ascii-font (string)
539 "Setup special ASCII font for STRING.
540STRING should contain only ASCII characters."
541 (let ((font-spec
542 (ps-mule-get-font-spec
543 'ascii
544 (car (nth ps-current-font (ps-font-alist 'ps-font-for-text))))))
545 (and font-spec
546 (ps-mule-prepare-font font-spec string 'ascii))))
547
548;;;###autoload
549(defun ps-mule-set-ascii-font ()
550 (unless (eq ps-mule-current-charset 'ascii)
551 (ps-set-font ps-current-font)
552 (setq ps-mule-current-charset 'ascii)))
553
554;; List of charsets of multi-byte characters in a text being printed.
555;; If the text doesn't contain any multi-byte characters (i.e. only ASCII),
556;; the value is nil.
557(defvar ps-mule-charset-list nil)
558
559;; This is a PostScript code inserted in the header of generated PostScript.
560(defconst ps-mule-prologue
561 "%%%% Start of Mule Section
562
563%% Working dictionary for general use.
564/MuleDict 10 dict def
565
566%% Define already scaled font for non-ASCII character sets.
567/DefFontMule { % fontname size basefont |- --
568 findfont exch scalefont definefont pop
569} bind def
570
571%% Define already scaled font for ASCII character sets.
572/DefAsciiFontMule { % fontname size basefont |-
573 MuleDict begin
574 findfont dup /Encoding get /ISOLatin1Encoding exch def
575 exch scalefont reencodeFontISO
576 end
577} def
578
579%% Set the specified non-ASCII font to use. It doesn't install
580%% Ascent, etc.
581/FM { % fontname |- --
582 findfont setfont
583} bind def
584
585%% Show vacant box for characters which don't have appropriate font.
586/SB { % count column |- --
587 SpaceWidth mul /w exch def
588 1 exch 1 exch { %for
589 pop
590 gsave
591 0 setlinewidth
592 0 Descent rmoveto w 0 rlineto
593 0 LineHeight rlineto w neg 0 rlineto closepath stroke
594 grestore
595 w 0 rmoveto
596 } for
597} bind def
598
599%% Flag to tell if we are now handling a composite character. This is
600%% defined here because both composite character handler and bitmap font
601%% handler require it.
602/Cmpchar false def
603
604%%%% End of Mule Section
605
606"
607 "PostScript code for printing multi-byte characters.")
608
609(defvar ps-mule-prologue-generated nil)
610
611(defun ps-mule-prologue-generated ()
612 (unless ps-mule-prologue-generated
613 (ps-output-prologue ps-mule-prologue)
614 (setq ps-mule-prologue-generated t)))
615
616(defun ps-mule-find-wrappoint (from to char-width)
617 "Find the longest sequence which is printable in the current line.
618
619The search starts at FROM and goes until TO. It is assumed that all characters
620between FROM and TO belong to a charset in `ps-mule-current-charset'.
621
622CHAR-WIDTH is the average width of ASCII characters in the current font.
623
624Returns the value:
625
626 (ENDPOS . RUN-WIDTH)
627
628Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of
629the sequence."
630 (if (eq ps-mule-current-charset 'composition)
631 ;; We must draw one char by one.
632 (let ((run-width (* (char-width (char-after from)) char-width)))
633 (if (> run-width ps-width-remaining)
634 (cons from ps-width-remaining)
635 (cons (ps-mule-next-point from) run-width)))
636 ;; We assume that all characters in this range have the same width.
637 (setq char-width (* char-width (charset-width ps-mule-current-charset)))
638 (let ((run-width (* (chars-in-region from to) char-width)))
639 (if (> run-width ps-width-remaining)
640 (cons (min to
641 (save-excursion
642 (goto-char from)
643 (forward-point
644 (truncate (/ ps-width-remaining char-width)))))
645 ps-width-remaining)
646 (cons to run-width)))))
647
648;;;###autoload
649(defun ps-mule-plot-string (from to &optional bg-color)
650 "Generate PostScript code for ploting characters in the region FROM and TO.
651
652It is assumed that all characters in this region belong to the same charset.
653
654Optional argument BG-COLOR specifies background color.
655
656Returns the value:
657
658 (ENDPOS . RUN-WIDTH)
659
660Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of
661the sequence."
662 (setq ps-mule-current-charset (charset-after from))
663 (let* ((wrappoint (ps-mule-find-wrappoint
664 from to (ps-avg-char-width 'ps-font-for-text)))
665 (to (car wrappoint))
666 (font-type (car (nth ps-current-font
667 (ps-font-alist 'ps-font-for-text))))
668 (font-spec (ps-mule-get-font-spec ps-mule-current-charset font-type))
669 (string (buffer-substring-no-properties from to)))
670 (cond
671 ((= from to)
672 ;; We can't print any more characters in the current line.
673 nil)
674
675 (font-spec
676 ;; We surely have a font for printing this character set.
677 (ps-output-string (ps-mule-string-encoding font-spec string))
678 (ps-output " S\n"))
679
680 ((eq ps-mule-current-charset 'latin-iso8859-1)
681 ;; Latin-1 can be printed by a normal ASCII font.
682 (ps-output-string (ps-mule-string-ascii string))
683 (ps-output " S\n"))
684
685 ((eq ps-mule-current-charset 'composition)
686 (let* ((ch (char-after from))
687 (width (char-width ch))
688 (ch-list (decompose-composite-char ch 'list t)))
689 (if (consp (nth 1 ch-list))
690 (ps-mule-plot-rule-cmpchar ch-list width font-type)
691 (ps-mule-plot-cmpchar ch-list width t font-type))))
692
693 (t
694 ;; No way to print this charset. Just show a vacant box of an
695 ;; appropriate width.
696 (ps-output (format "%d %d SB\n"
697 (length string)
698 (if (eq ps-mule-current-charset 'composition)
699 (char-width (char-after from))
700 (charset-width ps-mule-current-charset))))))
701 wrappoint))
702
703;; Composite font support
704
705(defvar ps-mule-cmpchar-prologue-generated nil)
706
707(defconst ps-mule-cmpchar-prologue
708 "%%%% Composite character handler
709/CmpcharWidth 0 def
710/CmpcharRelativeCompose 0 def
711/CmpcharRelativeSkip 0.4 def
712
713%% Get a bounding box (relative to currentpoint) of STR.
714/GetPathBox { % str |- --
715 gsave
716 currentfont /FontType get 3 eq { %ifelse
717 stringwidth pop pop
718 } {
719 currentpoint /y exch def pop
720 false charpath flattenpath pathbbox
721 y sub /URY exch def pop
722 y sub /LLY exch def pop
723 } ifelse
724 grestore
725} bind def
726
727%% Beginning of composite char.
728/BC { % str xoff width |- --
729 /Cmpchar true def
730 /CmpcharWidth exch def
731 currentfont /RelativeCompose known {
732 /CmpcharRelativeCompose currentfont /RelativeCompose get def
733 } {
734 /CmpcharRelativeCompose false def
735 } ifelse
736 /bgsave bg def /bgcolorsave bgcolor def
737 /Effectsave Effect def
738 gsave % Reflect effect only at first
739 /Effect Effect 1 2 add 4 add 16 add and def
740 /f0 findfont setfont ( ) 0 CmpcharWidth getinterval S
741 grestore
742 /Effect Effectsave 8 32 add and def % enable only shadow and outline
743 false BG
744 gsave SpaceWidth mul 0 rmoveto dup GetPathBox S grestore
745 /y currentpoint exch pop def
746 /HIGH URY y add def /LOW LLY y add def
747} bind def
748
749%% End of composite char.
750/EC { % -- |- --
751 /bg bgsave def /bgcolor bgcolorsave def
752 /Effect Effectsave def
753 /Cmpchar false def
754 CmpcharWidth SpaceWidth mul 0 rmoveto
755} bind def
756
757%% Rule base composition
758/RBC { % str xoff gref nref |- --
759 /nref exch def /gref exch def
760 gsave
761 SpaceWidth mul 0 rmoveto
762 dup
763 GetPathBox
764 [ HIGH currentpoint exch pop LOW HIGH LOW add 2 div ] gref get
765 [ URY LLY sub LLY neg 0 URY LLY sub 2 div ] nref get
766 sub /btm exch def
767 /top btm URY LLY sub add def
768 top HIGH gt { /HIGH top def } if
769 btm LOW lt { /LOW btm def } if
770 currentpoint pop btm LLY sub moveto
771 S
772 grestore
773} bind def
774
775%% Relative composition
776/RLC { % str |- --
777 gsave
778 dup GetPathBox
779 CmpcharRelativeCompose type /integertype eq {
780 LLY CmpcharRelativeCompose gt { % compose on top
781 currentpoint pop HIGH LLY sub CmpcharRelativeSkip add moveto
782 /HIGH HIGH URY LLY sub add CmpcharRelativeSkip add def
783 } { URY 0 le { % compose under bottom
784 currentpoint pop LOW LLY add CmpcharRelativeSkip sub moveto
785 /LOW LOW URY LLY sub sub CmpcharRelativeSkip sub def
786 } if } ifelse } if
787 S
788 grestore
789} bind def
790%%%% End of composite character handler
791
792"
793 "PostScript code for printing composite characters.")
794
795(defun ps-mule-plot-rule-cmpchar (ch-rule-list total-width font-type)
796 (let ((leftmost 0.0)
797 (rightmost (float (char-width (car ch-rule-list))))
798 (the-list (cons '(3 . 3) ch-rule-list))
799 cmpchar-elements)
800 (while the-list
801 (let* ((this (car the-list))
802 (gref (car this))
803 (nref (cdr this))
804 ;; X-axis info (0:left, 1:center, 2:right)
805 (gref-x (% gref 3))
806 (nref-x (% nref 3))
807 ;; Y-axis info (0:top, 1:base, 2:bottom, 3:center)
808 (gref-y (if (= gref 4) 3 (/ gref 3)))
809 (nref-y (if (= nref 4) 3 (/ nref 3)))
810 (char (car (cdr the-list)))
811 (width (float (char-width char)))
812 left)
813 (setq left (+ leftmost
814 (* (- rightmost leftmost) gref-x 0.5)
815 (- (* nref-x width 0.5)))
816 cmpchar-elements (cons (list char left gref-y nref-y)
817 cmpchar-elements)
818 leftmost (min left leftmost)
819 rightmost (max (+ left width) rightmost)
820 the-list (nthcdr 2 the-list))))
821 (if (< leftmost 0)
822 (let ((the-list cmpchar-elements)
823 elt)
824 (while the-list
825 (setq elt (car the-list)
826 the-list (cdr the-list))
827 (setcar (cdr elt) (- (nth 1 elt) leftmost)))))
828 (ps-mule-plot-cmpchar (nreverse cmpchar-elements)
829 total-width nil font-type)))
830
831(defun ps-mule-plot-cmpchar (elements total-width relativep font-type)
832 (let* ((elt (car elements))
833 (ch (if relativep elt (car elt))))
834 (ps-output-string (ps-mule-prepare-cmpchar-font ch font-type))
835 (ps-output (format " %d %d BC "
836 (if relativep 0 (nth 1 elt))
837 total-width))
838 (while (setq elements (cdr elements))
839 (setq elt (car elements)
840 ch (if relativep elt (car elt)))
841 (ps-output-string (ps-mule-prepare-cmpchar-font ch font-type))
842 (ps-output (if relativep
843 " RLC "
844 (format " %d %d %d RBC "
845 (nth 1 elt) (nth 2 elt) (nth 3 elt))))))
846 (ps-output "EC\n"))
847
848(defun ps-mule-prepare-cmpchar-font (char font-type)
849 (let* ((ps-mule-current-charset (char-charset char))
850 (font-spec (ps-mule-get-font-spec ps-mule-current-charset font-type)))
851 (cond (font-spec
852 (ps-mule-string-encoding font-spec (char-to-string char)))
853
854 ((eq ps-mule-current-charset 'latin-iso8859-1)
855 (ps-mule-string-ascii (char-to-string char)))
856
857 (t
858 ;; No font for CHAR.
859 (ps-set-font ps-current-font)
860 " "))))
861
862(defun ps-mule-string-ascii (str)
863 (ps-set-font ps-current-font)
864 (string-as-unibyte (encode-coding-string str 'iso-latin-1)))
865
866(defun ps-mule-string-encoding (font-spec str)
867 (let ((encoding (ps-mule-font-spec-encoding font-spec)))
868 (setq str
869 (string-as-unibyte
870 (cond ((coding-system-p encoding)
871 (encode-coding-string str encoding))
872 ((functionp encoding)
873 (funcall encoding str))
874 (encoding
875 (error "Invalid coding system or function: %s" encoding))
876 (t
877 str))))
878 (if (ps-mule-font-spec-src font-spec)
879 (ps-mule-prepare-font font-spec str ps-mule-current-charset)
880 (ps-set-font ps-current-font))
881 str))
882
883;; Bitmap font support
884
885(defvar ps-mule-bitmap-prologue-generated nil)
886
887(defconst ps-mule-bitmap-prologue
888 "%%%% Bitmap font handler
889
890/str7 7 string def % working area
891
892%% We grow the dictionary one bunch (1024 entries) by one.
893/BitmapDictArray 256 array def
894/BitmapDictLength 1024 def
895/BitmapDictIndex -1 def
896
897/NewBitmapDict { % -- |- --
898 /BitmapDictIndex BitmapDictIndex 1 add def
899 BitmapDictArray BitmapDictIndex BitmapDictLength dict put
900} bind def
901
902%% Make at least one dictionary.
903NewBitmapDict
904
905/AddBitmap { % gloval-charname bitmap-data |- --
906 BitmapDictArray BitmapDictIndex get
907 dup length BitmapDictLength ge {
908 pop
909 NewBitmapDict
910 BitmapDictArray BitmapDictIndex get
911 } if
912 3 1 roll put
913} bind def
914
915/GetBitmap { % gloval-charname |- bitmap-data
916 0 1 BitmapDictIndex { BitmapDictArray exch get begin } for
917 load
918 0 1 BitmapDictIndex { pop end } for
919} bind def
920
921%% Return a global character name which can be used as a key in the
922%% bitmap dictionary.
923/GlobalCharName { % fontidx code1 code2 |- gloval-charname
924 exch 256 mul add exch 65536 mul add 16777216 add 16 str7 cvrs 0 66 put
925 str7 cvn
926} bind def
927
928%% Character code holder for a 2-byte character.
929/FirstCode -1 def
930
931%% Glyph rendering procedure
932/BuildGlyphCommon { % fontdict charname |- --
933 1 index /FontDimension get 1 eq { /FirstCode 0 store } if
934 NameIndexDict exch get % STACK: fontdict charcode
935 FirstCode 0 lt { %ifelse
936 %% This is the first byte of a 2-byte character. Just
937 %% remember it for the moment.
938 /FirstCode exch store
939 pop
940 0 0 setcharwidth
941 } {
942 1 index /FontSize get /size exch def
943 1 index /FontSpaceWidthRatio get /ratio exch def
944 1 index /FontIndex get exch FirstCode exch
945 GlobalCharName GetBitmap /bmp exch def
946 %% bmp == [ DWIDTH BBX-WIDTH BBX-HEIGHT BBX-XOFF BBX-YOFF BITMAP ]
947 Cmpchar { %ifelse
948 /FontMatrix get [ exch { size div } forall ] /mtrx exch def
949 bmp 3 get bmp 4 get mtrx transform
950 /LLY exch def pop
951 bmp 1 get bmp 3 get add bmp 2 get bmp 4 get add mtrx transform
952 /URY exch def pop
953 } {
954 pop
955 } ifelse
956 /FirstCode -1 store
957
958 bmp 0 get SpaceWidthRatio ratio div mul size div 0 % wx wy
959 setcharwidth % We can't use setcachedevice here.
960
961 bmp 1 get 0 gt bmp 2 get 0 gt and {
962 bmp 1 get bmp 2 get % width height
963 true % polarity
964 [ size 0 0 size neg bmp 3 get neg bmp 2 get bmp 4 get add ] % matrix
965 bmp 5 1 getinterval cvx % datasrc
966 imagemask
967 } if
968 } ifelse
969} bind def
970
971/BuildCharCommon {
972 1 index /Encoding get exch get
973 1 index /BuildGlyph get exec
974} bind def
975
976%% Bitmap font creater
977
978%% Common Encoding shared by all bitmap fonts.
979/EncodingCommon 256 array def
980%% Mapping table from character name to character code.
981/NameIndexDict 256 dict def
9820 1 255 { %for
983 /idx exch def
984 /idxname idx 256 add 16 (XXX) cvrs dup 0 67 put cvn def % `C' == 67
985 EncodingCommon idx idxname put
986 NameIndexDict idxname idx put
987} for
988
989/GlobalFontIndex 0 def
990
991%% fontname dim col fontsize relative-compose baseline-offset fbbx |- --
992/BitmapFont {
993 15 dict begin
994 /FontBBox exch def
995 /BaselineOffset exch def
996 /RelativeCompose exch def
997 /FontSize exch def
998 /FontBBox [ FontBBox { FontSize div } forall ] def
999 FontBBox 2 get FontBBox 0 get sub exch div
1000 /FontSpaceWidthRatio exch def
1001 /FontDimension exch def
1002 /FontIndex GlobalFontIndex def
1003 /FontType 3 def
1004 /FontMatrix matrix def
1005 /Encoding EncodingCommon def
1006 /BuildGlyph { BuildGlyphCommon } def
1007 /BuildChar { BuildCharCommon } def
1008 currentdict end
1009 definefont pop
1010 /GlobalFontIndex GlobalFontIndex 1 add def
1011} bind def
1012
1013%% Define a new bitmap font.
1014%% fontname dim col fontsize relative-compose baseline-offset fbbx |- --
1015/NF {
1016 /fbbx exch def
1017 %% Convert BDF's FontBoundingBox to PostScript's FontBBox
1018 [ fbbx 2 get fbbx 3 get
1019 fbbx 2 get fbbx 0 get add fbbx 3 get fbbx 1 get add ]
1020 BitmapFont
1021} bind def
1022
1023%% Define a glyph for the specified font and character.
1024/NG { % fontname charcode bitmap-data |- --
1025 /bmp exch def
1026 exch findfont dup /BaselineOffset get bmp 4 get add bmp exch 4 exch put
1027 /FontIndex get exch
1028 dup 256 idiv exch 256 mod GlobalCharName
1029 bmp AddBitmap
1030} bind def
1031%%%% End of bitmap font handler
1032
1033")
1034
1035;; External library support.
1036
1037;; The following three functions are to be called from external
1038;; libraries which support bitmap fonts (e.g. `bdf') to get
1039;; appropriate PostScript code.
1040
1041(defun ps-mule-generate-bitmap-prologue ()
1042 (unless ps-mule-bitmap-prologue-generated
1043 (setq ps-mule-bitmap-prologue-generated t)
1044 (list ps-mule-bitmap-prologue)))
1045
1046(defun ps-mule-generate-bitmap-font (&rest args)
1047 (list (apply 'format "/%s %d %d %f %S %d %S NF\n" args)))
1048
1049(defun ps-mule-generate-bitmap-glyph (font-name code dwidth bbx bitmap)
1050 (format "/%s %d [ %d %d %d %d %d <%s> ] NG\n"
1051 font-name code
1052 dwidth (aref bbx 0) (aref bbx 1) (aref bbx 2) (aref bbx 3)
1053 bitmap))
1054
1055;; Mule specific initializers.
1056
1057;;;###autoload
1058(defun ps-mule-initialize ()
1059 "Initialize global data for printing multi-byte characters."
1060 (setq ps-mule-font-cache nil
1061 ps-mule-prologue-generated nil
1062 ps-mule-cmpchar-prologue-generated nil
1063 ps-mule-bitmap-prologue-generated nil)
1064 (mapcar `(lambda (x) (setcar (nthcdr 2 x) nil))
1065 ps-mule-external-libraries))
1066
1067;;;###autoload
1068(defun ps-mule-begin-job (from to)
1069 "Start printing job for multi-byte chars between FROM and TO.
1070This checks if all multi-byte characters in the region are printable or not."
1071 (setq ps-mule-charset-list nil
1072 ps-mule-font-info-database
1073 (cond ((eq ps-multibyte-buffer 'non-latin-printer)
1074 ps-mule-font-info-database-ps)
1075 ((eq ps-multibyte-buffer 'bdf-font)
1076 ps-mule-font-info-database-bdf)
1077 ((eq ps-multibyte-buffer 'bdf-font-except-latin)
1078 ps-mule-font-info-database-ps-bdf)
1079 (t
1080 ps-mule-font-info-database-latin)))
1081 (and (boundp 'enable-multibyte-characters)
1082 enable-multibyte-characters
1083 ;; Initialize `ps-mule-charset-list'. If some characters aren't
1084 ;; printable, warn it.
1085 (let ((charsets (find-charset-region from to)))
1086 (setq charsets (delq 'ascii (delq 'unknown (delq nil charsets))))
1087 (setq ps-mule-charset-list charsets)
1088 (save-excursion
1089 (goto-char from)
1090 (and (search-forward "\200" to t)
1091 (setq ps-mule-charset-list
1092 (cons 'composition ps-mule-charset-list))))
1093 (while charsets
1094 (setq charsets
1095 (cond
1096 ((or (eq (car charsets) 'composition)
1097 (ps-mule-printable-p (car charsets)))
1098 (cdr charsets))
1099 ((y-or-n-p
1100 "Font for some characters not found, continue anyway? ")
1101 nil)
1102 (t
1103 (error "Printing cancelled")))))))
1104
1105 (setq ps-mule-current-charset 'ascii)
1106
1107 (if ps-mule-charset-list
1108 (let ((the-list ps-mule-charset-list)
1109 font-spec elt)
1110 (ps-mule-prologue-generated)
1111 ;; If external functions are necessary, generate prologues for them.
1112 (while the-list
1113 (setq elt (car the-list)
1114 the-list (cdr the-list))
1115 (cond ((and (eq elt 'composition)
1116 (not ps-mule-cmpchar-prologue-generated))
1117 (ps-output-prologue ps-mule-cmpchar-prologue)
1118 (setq ps-mule-cmpchar-prologue-generated t))
1119 ((setq font-spec (ps-mule-get-font-spec elt 'normal))
1120 (ps-mule-init-external-library font-spec))))))
1121
1122 ;; If ASCII font is also specified in ps-mule-font-info-database,
1123 ;; use it istead of what specified in ps-font-info-database.
1124 (let ((font-spec (ps-mule-get-font-spec 'ascii 'normal)))
1125 (if font-spec
1126 (progn
1127 (ps-mule-prologue-generated)
1128 (ps-mule-init-external-library font-spec)
1129 (let ((font (ps-font-alist 'ps-font-for-text))
1130 (ps-current-font 0))
1131 (while font
1132 ;; Be sure to download a glyph for SPACE in advance.
1133 (ps-mule-prepare-font (ps-mule-get-font-spec 'ascii (car font))
1134 " " 'ascii 'no-setfont)
1135 (setq font (cdr font)
1136 ps-current-font (1+ ps-current-font)))))))
1137
1138 (if ps-mule-charset-list
1139 ;; We must change this regexp for multi-byte buffer.
1140 (setq ps-control-or-escape-regexp
1141 (cond ((eq ps-print-control-characters '8-bit)
1142 "[^\040-\176]")
1143 ((eq ps-print-control-characters 'control-8-bit)
1144 (string-as-multibyte "[^\040-\176\240-\377]"))
1145 ((eq ps-print-control-characters 'control)
1146 (string-as-multibyte "[^\040-\176\200-\377]"))
1147 (t (string-as-multibyte "[^\000-\011\013\015-\377"))))))
1148
1149;;;###autoload
1150(defun ps-mule-begin-page ()
1151 (setq ps-mule-current-charset 'ascii))
1152
1153
1154(provide 'ps-mule)
1155
1156;;; ps-mule.el ends here