| 1 | ;;; ps-mule.el --- provide multi-byte character facility to ps-print |
| 2 | |
| 3 | ;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 |
| 4 | ;; Free Software Foundation, Inc. |
| 5 | |
| 6 | ;; Author: Vinicius Jose Latorre <vinicius@cpqd.com.br> |
| 7 | ;; Kenichi Handa <handa@etl.go.jp> (multi-byte characters) |
| 8 | ;; Maintainer: Kenichi Handa <handa@etl.go.jp> (multi-byte characters) |
| 9 | ;; Vinicius Jose Latorre <vinicius@cpqd.com.br> |
| 10 | ;; Keywords: wp, print, PostScript, multibyte, mule |
| 11 | ;; Time-stamp: <2003/05/14 22:19:41 vinicius> |
| 12 | |
| 13 | ;; This file is part of GNU Emacs. |
| 14 | |
| 15 | ;; GNU Emacs is free software; you can redistribute it and/or modify |
| 16 | ;; it under the terms of the GNU General Public License as published by |
| 17 | ;; the Free Software Foundation; either version 2, or (at your option) |
| 18 | ;; any later version. |
| 19 | |
| 20 | ;; GNU Emacs is distributed in the hope that it will be useful, |
| 21 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | ;; GNU General Public License for more details. |
| 24 | |
| 25 | ;; You should have received a copy of the GNU General Public License |
| 26 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
| 27 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 28 | ;; Boston, MA 02111-1307, USA. |
| 29 | |
| 30 | ;;; Commentary: |
| 31 | |
| 32 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 33 | ;; |
| 34 | ;; About ps-mule |
| 35 | ;; ------------- |
| 36 | ;; |
| 37 | ;; This package is used for ps-print to print multi-byte buffer. |
| 38 | ;; |
| 39 | ;; See also ps-print.el. |
| 40 | ;; |
| 41 | ;; |
| 42 | ;; Printing Multi-byte Buffer |
| 43 | ;; -------------------------- |
| 44 | ;; |
| 45 | ;; The variable `ps-multibyte-buffer' specifies the ps-print multi-byte buffer |
| 46 | ;; handling. |
| 47 | ;; |
| 48 | ;; Valid values for `ps-multibyte-buffer' are: |
| 49 | ;; |
| 50 | ;; nil This is the value to use the default settings which |
| 51 | ;; is by default for printing buffer with only ASCII |
| 52 | ;; and Latin characters. The default setting can be |
| 53 | ;; changed by setting the variable |
| 54 | ;; `ps-mule-font-info-database-default' differently. |
| 55 | ;; The initial value of this variable is |
| 56 | ;; `ps-mule-font-info-database-latin' (see |
| 57 | ;; documentation). |
| 58 | ;; |
| 59 | ;; `non-latin-printer' This is the value to use when you have a japanese |
| 60 | ;; or korean PostScript printer and want to print |
| 61 | ;; buffer with ASCII, Latin-1, Japanese (JISX0208 and |
| 62 | ;; JISX0201-Kana) and Korean characters. At present, |
| 63 | ;; it was not tested the Korean characters printing. |
| 64 | ;; If you have a korean PostScript printer, please, |
| 65 | ;; test it. |
| 66 | ;; |
| 67 | ;; `bdf-font' This is the value to use when you want to print |
| 68 | ;; buffer with BDF fonts. BDF fonts include both latin |
| 69 | ;; and non-latin fonts. BDF (Bitmap Distribution |
| 70 | ;; Format) is a format used for distributing X's font |
| 71 | ;; source file. BDF fonts are included in |
| 72 | ;; `intlfonts-1.2' which is a collection of X11 fonts |
| 73 | ;; for all characters supported by Emacs. In order to |
| 74 | ;; use this value, be sure to have installed |
| 75 | ;; `intlfonts-1.2' and set the variable |
| 76 | ;; `bdf-directory-list' appropriately (see ps-bdf.el |
| 77 | ;; for documentation of this variable). |
| 78 | ;; |
| 79 | ;; `bdf-font-except-latin' This is like `bdf-font' except that it is used |
| 80 | ;; PostScript default fonts to print ASCII and Latin-1 |
| 81 | ;; characters. This is convenient when you want or |
| 82 | ;; need to use both latin and non-latin characters on |
| 83 | ;; the same buffer. See `ps-font-family', |
| 84 | ;; `ps-header-font-family' and `ps-font-info-database'. |
| 85 | ;; |
| 86 | ;; Any other value is treated as nil. |
| 87 | ;; |
| 88 | ;; The default is nil. |
| 89 | ;; |
| 90 | ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 91 | |
| 92 | ;;; Code: |
| 93 | |
| 94 | (eval-and-compile |
| 95 | (require 'ps-print) |
| 96 | |
| 97 | ;; to avoid XEmacs compilation gripes |
| 98 | (defvar leading-code-private-22 157) |
| 99 | (or (fboundp 'charset-bytes) |
| 100 | (defun charset-bytes (charset) 1)) ; ascii |
| 101 | (or (fboundp 'charset-dimension) |
| 102 | (defun charset-dimension (charset) 1)) ; ascii |
| 103 | (or (fboundp 'charset-id) |
| 104 | (defun charset-id (charset) 0)) ; ascii |
| 105 | (or (fboundp 'charset-width) |
| 106 | (defun charset-width (charset) 1)) ; ascii |
| 107 | (or (fboundp 'find-charset-region) |
| 108 | (defun find-charset-region (beg end &optional table) |
| 109 | (list 'ascii))) |
| 110 | (or (fboundp 'char-valid-p) |
| 111 | (defun char-valid-p (char) |
| 112 | (< (following-char) 256))) |
| 113 | (or (fboundp 'split-char) |
| 114 | (defun split-char (char) |
| 115 | (list (if (char-valid-p char) |
| 116 | 'ascii |
| 117 | 'unknow) |
| 118 | char))) |
| 119 | (or (fboundp 'char-width) |
| 120 | (defun char-width (char) 1)) ; ascii |
| 121 | (or (fboundp 'chars-in-region) |
| 122 | (defun chars-in-region (beg end) |
| 123 | (- (max beg end) (min beg end)))) |
| 124 | (or (fboundp 'forward-point) |
| 125 | (defun forward-point (arg) |
| 126 | (save-excursion |
| 127 | (let ((count (abs arg)) |
| 128 | (step (if (zerop arg) |
| 129 | 0 |
| 130 | (/ arg arg)))) |
| 131 | (while (and (> count 0) |
| 132 | (< (point-min) (point)) (< (point) (point-max))) |
| 133 | (forward-char step) |
| 134 | (setq count (1- count))) |
| 135 | (+ (point) (* count step)))))) |
| 136 | (or (fboundp 'decompose-composite-char) |
| 137 | (defun decompose-composite-char (char &optional type |
| 138 | with-composition-rule) |
| 139 | nil)) |
| 140 | (or (fboundp 'encode-coding-string) |
| 141 | (defun encode-coding-string (string coding-system &optional nocopy) |
| 142 | (if nocopy |
| 143 | string |
| 144 | (copy-sequence string)))) |
| 145 | (or (fboundp 'coding-system-p) |
| 146 | (defun coding-system-p (obj) nil)) |
| 147 | (or (fboundp 'ccl-execute-on-string) |
| 148 | (defun ccl-execute-on-string (ccl-prog status str |
| 149 | &optional contin unibyte-p) |
| 150 | str)) |
| 151 | (or (fboundp 'define-ccl-program) |
| 152 | (defmacro define-ccl-program (name ccl-program &optional doc) |
| 153 | `(defconst ,name nil ,doc))) |
| 154 | (or (fboundp 'multibyte-string-p) |
| 155 | (defun multibyte-string-p (str) |
| 156 | (let ((len (length str)) |
| 157 | (i 0) |
| 158 | multibyte) |
| 159 | (while (and (< i len) (not (setq multibyte (> (aref str i) 255)))) |
| 160 | (setq i (1+ i))) |
| 161 | multibyte))) |
| 162 | (or (fboundp 'string-make-multibyte) |
| 163 | (defalias 'string-make-multibyte 'copy-sequence)) |
| 164 | (or (fboundp 'encode-char) |
| 165 | (defun encode-char (ch ccs) |
| 166 | ch))) |
| 167 | |
| 168 | |
| 169 | ;;;###autoload |
| 170 | (defcustom ps-multibyte-buffer nil |
| 171 | "*Specifies the multi-byte buffer handling. |
| 172 | |
| 173 | Valid values are: |
| 174 | |
| 175 | nil This is the value to use the default settings which |
| 176 | is by default for printing buffer with only ASCII |
| 177 | and Latin characters. The default setting can be |
| 178 | changed by setting the variable |
| 179 | `ps-mule-font-info-database-default' differently. |
| 180 | The initial value of this variable is |
| 181 | `ps-mule-font-info-database-latin' (see |
| 182 | documentation). |
| 183 | |
| 184 | `non-latin-printer' This is the value to use when you have a Japanese |
| 185 | or Korean PostScript printer and want to print |
| 186 | buffer with ASCII, Latin-1, Japanese (JISX0208 and |
| 187 | JISX0201-Kana) and Korean characters. At present, |
| 188 | it was not tested the Korean characters printing. |
| 189 | If you have a korean PostScript printer, please, |
| 190 | test it. |
| 191 | |
| 192 | `bdf-font' This is the value to use when you want to print |
| 193 | buffer with BDF fonts. BDF fonts include both latin |
| 194 | and non-latin fonts. BDF (Bitmap Distribution |
| 195 | Format) is a format used for distributing X's font |
| 196 | source file. BDF fonts are included in |
| 197 | `intlfonts-1.2' which is a collection of X11 fonts |
| 198 | for all characters supported by Emacs. In order to |
| 199 | use this value, be sure to have installed |
| 200 | `intlfonts-1.2' and set the variable |
| 201 | `bdf-directory-list' appropriately (see ps-bdf.el for |
| 202 | documentation of this variable). |
| 203 | |
| 204 | `bdf-font-except-latin' This is like `bdf-font' except that it is used |
| 205 | PostScript default fonts to print ASCII and Latin-1 |
| 206 | characters. This is convenient when you want or |
| 207 | need to use both latin and non-latin characters on |
| 208 | the same buffer. See `ps-font-family', |
| 209 | `ps-header-font-family' and `ps-font-info-database'. |
| 210 | |
| 211 | Any other value is treated as nil." |
| 212 | :type '(choice (const non-latin-printer) (const bdf-font) |
| 213 | (const bdf-font-except-latin) (const :tag "nil" nil)) |
| 214 | :group 'ps-print-font) |
| 215 | |
| 216 | (defvar ps-mule-font-info-database |
| 217 | nil |
| 218 | "Alist of charsets with the corresponding font information. |
| 219 | Each element has the form: |
| 220 | |
| 221 | (CHARSET (FONT-TYPE FONT-SRC FONT-NAME ENCODING BYTES) ...) |
| 222 | |
| 223 | Where |
| 224 | |
| 225 | CHARSET is a charset (symbol) for this font family, |
| 226 | |
| 227 | FONT-TYPE is a font type: normal, bold, italic, or bold-italic. |
| 228 | |
| 229 | FONT-SRC is a font source: builtin, bdf, vflib, or nil. |
| 230 | |
| 231 | If FONT-SRC is builtin, FONT-NAME is a built-in PostScript font name. |
| 232 | |
| 233 | If FONT-SRC is bdf, FONT-NAME is a BDF font file name, or a list of |
| 234 | alternative font names. To use this font, the external library `ps-bdf' |
| 235 | is required. |
| 236 | |
| 237 | If FONT-SRC is vflib, FONT-NAME is the name of a font that VFlib knows. |
| 238 | To use this font, the external library `vflib' is required. |
| 239 | |
| 240 | If FONT-SRC is nil, a proper ASCII font in the variable |
| 241 | `ps-font-info-database' is used. This is useful for Latin-1 characters. |
| 242 | |
| 243 | ENCODING is a coding system to encode a string of characters of CHARSET into a |
| 244 | proper string matching an encoding of the specified font. ENCODING may be a |
| 245 | function that does this encoding. In this case, the function is called with |
| 246 | one argument, the string to encode, and it should return an encoded string. |
| 247 | |
| 248 | BYTES specifies how many bytes each character has in the encoded byte |
| 249 | sequence; it should be 1 or 2. |
| 250 | |
| 251 | All multi-byte characters are printed by fonts specified in this database |
| 252 | regardless of a font family of ASCII characters. The exception is Latin-1 |
| 253 | characters which are printed by the same font as ASCII characters, thus obey |
| 254 | font family. |
| 255 | |
| 256 | See also the variable `ps-font-info-database'.") |
| 257 | |
| 258 | (defconst ps-mule-font-info-database-latin |
| 259 | '((latin-iso8859-1 |
| 260 | (normal nil nil iso-latin-1))) |
| 261 | "Sample setting of `ps-mule-font-info-database' to use latin fonts.") |
| 262 | |
| 263 | (defcustom ps-mule-font-info-database-default |
| 264 | ps-mule-font-info-database-latin |
| 265 | "*The default setting to use when `ps-multibyte-buffer' is nil." |
| 266 | :type '(symbol :tag "Multi-Byte Buffer Database Font Default") |
| 267 | :group 'ps-print-font) |
| 268 | |
| 269 | (defconst ps-mule-font-info-database-ps |
| 270 | '((katakana-jisx0201 |
| 271 | (normal builtin "Ryumin-Light.Katakana" ps-mule-encode-7bit 1) |
| 272 | (bold builtin "GothicBBB-Medium.Katakana" ps-mule-encode-7bit 1) |
| 273 | (bold-italic builtin "GothicBBB-Medium.Katakana" ps-mule-encode-7bit 1)) |
| 274 | (latin-jisx0201 |
| 275 | (normal builtin "Ryumin-Light.Hankaku" ps-mule-encode-7bit 1) |
| 276 | (bold builtin "GothicBBB-Medium.Hankaku" ps-mule-encode-7bit 1)) |
| 277 | (japanese-jisx0208 |
| 278 | (normal builtin "Ryumin-Light-H" ps-mule-encode-7bit 2) |
| 279 | (bold builtin "GothicBBB-Medium-H" ps-mule-encode-7bit 2)) |
| 280 | (korean-ksc5601 |
| 281 | (normal builtin "Munhwa-Regular-KSC-EUC-H" ps-mule-encode-7bit 2) |
| 282 | (bold builtin "Munhwa-Bold-KSC-EUC-H" ps-mule-encode-7bit 2)) |
| 283 | ) |
| 284 | "Sample setting of the `ps-mule-font-info-database' to use builtin PS font. |
| 285 | |
| 286 | Currently, data for Japanese and Korean PostScript printers are listed.") |
| 287 | |
| 288 | (defconst ps-mule-font-info-database-bdf |
| 289 | '((ascii |
| 290 | (normal bdf ("lt1-24-etl.bdf" "etl24-latin1.bdf") nil 1) |
| 291 | (bold bdf ("lt1-16b-etl.bdf" "etl16b-latin1.bdf") nil 1) |
| 292 | (italic bdf ("lt1-16i-etl.bdf" "etl16i-latin1.bdf") nil 1) |
| 293 | (bold-italic bdf ("lt1-16bi-etl.bdf" "etl16bi-latin1.bdf") nil 1)) |
| 294 | (latin-iso8859-1 |
| 295 | (normal bdf ("lt1-24-etl.bdf" "etl24-latin1.bdf") iso-latin-1 1) |
| 296 | (bold bdf ("lt1-16b-etl.bdf" "etl16b-latin1.bdf") iso-latin-1 1) |
| 297 | (italic bdf ("lt1-16i-etl.bdf" "etl16i-latin1.bdf") iso-latin-1 1) |
| 298 | (bold-italic bdf ("lt1-16bi-etl.bdf" "etl16bi-latin1.bdf") iso-latin-1 1)) |
| 299 | (latin-iso8859-2 |
| 300 | (normal bdf ("lt2-24-etl.bdf" "etl24-latin2.bdf") iso-latin-2 1)) |
| 301 | (latin-iso8859-3 |
| 302 | (normal bdf ("lt3-24-etl.bdf" "etl24-latin3.bdf") iso-latin-3 1)) |
| 303 | (latin-iso8859-4 |
| 304 | (normal bdf ("lt4-24-etl.bdf" "etl24-latin4.bdf") iso-latin-4 1)) |
| 305 | (thai-tis620 |
| 306 | (normal bdf ("thai24.bdf" "thai-24.bdf") thai-tis620 1)) |
| 307 | (greek-iso8859-7 |
| 308 | (normal bdf ("grk24-etl.bdf" "etl24-greek.bdf") greek-iso-8bit 1)) |
| 309 | ;; (arabic-iso8859-6 nil) ; not yet available |
| 310 | (hebrew-iso8859-8 |
| 311 | (normal bdf ("heb24-etl.bdf" "etl24-hebrew.bdf") hebrew-iso-8bit 1)) |
| 312 | (katakana-jisx0201 |
| 313 | (normal bdf "12x24rk.bdf" ps-mule-encode-8bit 1)) |
| 314 | (latin-jisx0201 |
| 315 | (normal bdf "12x24rk.bdf" ps-mule-encode-7bit 1)) |
| 316 | (cyrillic-iso8859-5 |
| 317 | (normal bdf ("cyr24-etl.bdf" "etl24-cyrillic.bdf") cyrillic-iso-8bit 1)) |
| 318 | (latin-iso8859-9 |
| 319 | (normal bdf ("lt5-24-etl.bdf" "etl24-latin5.bdf") iso-latin-5 1)) |
| 320 | (japanese-jisx0208-1978 |
| 321 | (normal bdf "jiskan24.bdf" ps-mule-encode-7bit 2)) |
| 322 | (chinese-gb2312 |
| 323 | (normal bdf "gb24st.bdf" ps-mule-encode-7bit 2)) |
| 324 | (japanese-jisx0208 |
| 325 | (normal bdf "jiskan24.bdf" ps-mule-encode-7bit 2)) |
| 326 | (korean-ksc5601 |
| 327 | (normal bdf "hanglm24.bdf" ps-mule-encode-7bit 2)) |
| 328 | (japanese-jisx0212 |
| 329 | (normal bdf ("jksp40.bdf" "jisksp40.bdf") ps-mule-encode-7bit 2)) |
| 330 | (chinese-cns11643-1 |
| 331 | (normal bdf ("cns1-40.bdf" "cns-1-40.bdf") ps-mule-encode-7bit 2)) |
| 332 | (chinese-cns11643-2 |
| 333 | (normal bdf ("cns2-40.bdf" "cns-2-40.bdf") ps-mule-encode-7bit 2)) |
| 334 | (chinese-big5-1 |
| 335 | (normal bdf "taipei24.bdf" chinese-big5 2)) |
| 336 | (chinese-big5-2 |
| 337 | (normal bdf "taipei24.bdf" chinese-big5 2)) |
| 338 | (chinese-sisheng |
| 339 | (normal bdf ("sish24-etl.bdf" "etl24-sisheng.bdf") ps-mule-encode-7bit 1)) |
| 340 | (ipa |
| 341 | (normal bdf ("ipa24-etl.bdf" "etl24-ipa.bdf") ps-mule-encode-8bit 1)) |
| 342 | (vietnamese-viscii-lower |
| 343 | (normal bdf ("visc24-etl.bdf" "etl24-viscii.bdf") vietnamese-viscii 1)) |
| 344 | (vietnamese-viscii-upper |
| 345 | (normal bdf ("visc24-etl.bdf" "etl24-viscii.bdf") vietnamese-viscii 1)) |
| 346 | (arabic-digit |
| 347 | (normal bdf ("arab24-0-etl.bdf" "etl24-arabic0.bdf") ps-mule-encode-7bit 1)) |
| 348 | (arabic-1-column |
| 349 | (normal bdf ("arab24-1-etl.bdf" "etl24-arabic1.bdf") ps-mule-encode-7bit 1)) |
| 350 | ;; (ascii-right-to-left nil) ; not yet available |
| 351 | (lao |
| 352 | (normal bdf ("lao24-mule.bdf" "mule-lao-24.bdf") lao 1)) |
| 353 | (arabic-2-column |
| 354 | (normal bdf ("arab24-2-etl.bdf" "etl24-arabic2.bdf") ps-mule-encode-7bit 1)) |
| 355 | (indian-is13194 |
| 356 | (normal bdf ("isci24-mule.bdf" "mule-iscii-24.bdf") ps-mule-encode-7bit 1)) |
| 357 | (indian-1-column |
| 358 | (normal bdf ("ind1c24-mule.bdf" "mule-indian-1col-24.bdf") ps-mule-encode-7bit 2)) |
| 359 | (tibetan-1-column |
| 360 | (normal bdf ("tib1c24-mule.bdf" "mule-tibmdx-1col-24.bdf") ps-mule-encode-7bit 2)) |
| 361 | (ethiopic |
| 362 | (normal bdf ("ethio24f-uni.bdf" "ethiomx24f-uni.bdf") ps-mule-encode-ethiopic 2)) |
| 363 | (chinese-cns11643-3 |
| 364 | (normal bdf ("cns3-40.bdf" "cns-3-40.bdf") ps-mule-encode-7bit 2)) |
| 365 | (chinese-cns11643-4 |
| 366 | (normal bdf ("cns4-40.bdf" "cns-4-40.bdf") ps-mule-encode-7bit 2)) |
| 367 | (chinese-cns11643-5 |
| 368 | (normal bdf ("cns5-40.bdf" "cns-5-40.bdf") ps-mule-encode-7bit 2)) |
| 369 | (chinese-cns11643-6 |
| 370 | (normal bdf ("cns6-40.bdf" "cns-6-40.bdf") ps-mule-encode-7bit 2)) |
| 371 | (chinese-cns11643-7 |
| 372 | (normal bdf ("cns7-40.bdf" "cns-7-40.bdf") ps-mule-encode-7bit 2)) |
| 373 | (indian-2-column |
| 374 | (normal bdf ("ind24-mule.bdf" "mule-indian-24.bdf") ps-mule-encode-7bit 2)) |
| 375 | (tibetan |
| 376 | (normal bdf ("tib24p-mule.bdf" "tib24-mule.bdf" "mule-tibmdx-24.bdf") |
| 377 | ps-mule-encode-7bit 2)) |
| 378 | (mule-unicode-0100-24ff |
| 379 | (normal bdf "etl24-unicode.bdf" ps-mule-encode-ucs2 2)) |
| 380 | (mule-unicode-2500-33ff |
| 381 | (normal bdf "etl24-unicode.bdf" ps-mule-encode-ucs2 2)) |
| 382 | (mule-unicode-e000-ffff |
| 383 | (normal bdf "etl24-unicode.bdf" ps-mule-encode-ucs2 2))) |
| 384 | "Sample setting of the `ps-mule-font-info-database' to use BDF fonts. |
| 385 | BDF (Bitmap Distribution Format) is a format used for distributing X's font |
| 386 | source file. |
| 387 | |
| 388 | Current default value list for BDF fonts is included in `intlfonts-1.2' |
| 389 | which is a collection of X11 fonts for all characters supported by Emacs. |
| 390 | |
| 391 | Using this list as default value to `ps-mule-font-info-database', all |
| 392 | characters including ASCII and Latin-1 are printed by BDF fonts. |
| 393 | |
| 394 | See also `ps-mule-font-info-database-ps-bdf'.") |
| 395 | |
| 396 | (defconst ps-mule-font-info-database-ps-bdf |
| 397 | (cons (car ps-mule-font-info-database-latin) |
| 398 | (cdr (cdr ps-mule-font-info-database-bdf))) |
| 399 | "Sample setting of the `ps-mule-font-info-database' to use BDF fonts. |
| 400 | |
| 401 | Current default value list for BDF fonts is included in `intlfonts-1.2' |
| 402 | which is a collection of X11 fonts for all characters supported by Emacs. |
| 403 | |
| 404 | Using this list as default value to `ps-mule-font-info-database', all |
| 405 | characters except ASCII and Latin-1 characters are printed with BDF fonts. |
| 406 | ASCII and Latin-1 characters are printed with PostScript font specified |
| 407 | by `ps-font-family' and `ps-header-font-family'. |
| 408 | |
| 409 | See also `ps-mule-font-info-database-bdf'.") |
| 410 | |
| 411 | ;; Two typical encoding functions for PostScript fonts. |
| 412 | |
| 413 | (defun ps-mule-encode-7bit (string) |
| 414 | (ps-mule-encode-bit string 0)) |
| 415 | |
| 416 | (defun ps-mule-encode-8bit (string) |
| 417 | (ps-mule-encode-bit string 128)) |
| 418 | |
| 419 | (defun ps-mule-encode-bit (string delta) |
| 420 | (let* ((dim (charset-dimension (char-charset (string-to-char string)))) |
| 421 | (len (* (length string) dim)) |
| 422 | (str (make-string len 0)) |
| 423 | (i 0) |
| 424 | (j 0)) |
| 425 | (if (= dim 1) |
| 426 | (while (< j len) |
| 427 | (aset str j |
| 428 | (+ (nth 1 (split-char (aref string i))) delta)) |
| 429 | (setq i (1+ i) |
| 430 | j (1+ j))) |
| 431 | (while (< j len) |
| 432 | (let ((split (split-char (aref string i)))) |
| 433 | (aset str j (+ (nth 1 split) delta)) |
| 434 | (aset str (1+ j) (+ (nth 2 split) delta)) |
| 435 | (setq i (1+ i) |
| 436 | j (+ j 2))))) |
| 437 | str)) |
| 438 | |
| 439 | ;; Special encoding function for Ethiopic. |
| 440 | (if (boundp 'mule-version) ; only if mule package is loaded |
| 441 | (define-ccl-program ccl-encode-ethio-unicode |
| 442 | `(1 |
| 443 | ((read r2) |
| 444 | (loop |
| 445 | (if (r2 == ,leading-code-private-22) |
| 446 | ((read r0) |
| 447 | (if (r0 == ,(charset-id 'ethiopic)) |
| 448 | ((read r1 r2) |
| 449 | (r1 &= 127) (r2 &= 127) |
| 450 | (call ccl-encode-ethio-font) |
| 451 | (write r1) |
| 452 | (write-read-repeat r2)) |
| 453 | ((write r2 r0) |
| 454 | (repeat)))) |
| 455 | (write-read-repeat r2)))))) |
| 456 | ;; to avoid compilation gripes |
| 457 | (defvar ccl-encode-ethio-unicode nil)) |
| 458 | |
| 459 | (if (boundp 'mule-version) |
| 460 | ;; bound mule-version |
| 461 | (defun ps-mule-encode-ethiopic (string) |
| 462 | (ccl-execute-on-string (symbol-value 'ccl-encode-ethio-unicode) |
| 463 | (make-vector 9 nil) |
| 464 | string)) |
| 465 | ;; unbound mule-version |
| 466 | (defun ps-mule-encode-ethiopic (string) |
| 467 | string)) |
| 468 | |
| 469 | ;; Special encoding for mule-unicode-* characters. |
| 470 | (defun ps-mule-encode-ucs2 (string) |
| 471 | (let* ((len (length string)) |
| 472 | (str (make-string (* 2 len) 0)) |
| 473 | (i 0) |
| 474 | (j 0) |
| 475 | ch hi lo) |
| 476 | (while (< i len) |
| 477 | (setq ch (encode-char (aref string i) 'ucs) |
| 478 | hi (lsh ch -8) |
| 479 | lo (logand ch 255)) |
| 480 | (aset str j hi) |
| 481 | (aset str (1+ j) lo) |
| 482 | (setq i (1+ i) |
| 483 | j (+ j 2))) |
| 484 | str)) |
| 485 | |
| 486 | ;; A charset which we are now processing. |
| 487 | (defvar ps-mule-current-charset nil) |
| 488 | |
| 489 | (defun ps-mule-get-font-spec (charset font-type) |
| 490 | "Return FONT-SPEC for printing characters CHARSET with FONT-TYPE. |
| 491 | FONT-SPEC is a list that has the form: |
| 492 | |
| 493 | (FONT-SRC FONT-NAME ENCODING BYTES) |
| 494 | |
| 495 | FONT-SPEC is extracted from `ps-mule-font-info-database'. |
| 496 | |
| 497 | See the documentation of `ps-mule-font-info-database' for the meaning of each |
| 498 | element of the list." |
| 499 | (let ((slot (cdr (assq charset ps-mule-font-info-database)))) |
| 500 | (and slot |
| 501 | (cdr (or (assq font-type slot) |
| 502 | (and (eq font-type 'bold-italic) |
| 503 | (or (assq 'bold slot) (assq 'italic slot))) |
| 504 | (assq 'normal slot)))))) |
| 505 | |
| 506 | ;; Functions to access each element of FONT-SPEC. |
| 507 | (defsubst ps-mule-font-spec-src (font-spec) (car font-spec)) |
| 508 | (defsubst ps-mule-font-spec-name (font-spec) (nth 1 font-spec)) |
| 509 | (defsubst ps-mule-font-spec-encoding (font-spec) (nth 2 font-spec)) |
| 510 | (defsubst ps-mule-font-spec-bytes (font-spec) (nth 3 font-spec)) |
| 511 | |
| 512 | (defsubst ps-mule-printable-p (charset) |
| 513 | "Non-nil if characters in CHARSET is printable." |
| 514 | (ps-mule-get-font-spec charset 'normal)) |
| 515 | |
| 516 | (defconst ps-mule-external-libraries |
| 517 | '((builtin nil nil |
| 518 | nil nil nil) |
| 519 | (bdf ps-bdf nil |
| 520 | bdf-generate-prologue bdf-generate-font bdf-generate-glyphs) |
| 521 | (pcf nil nil |
| 522 | pcf-generate-prologue pcf-generate-font pcf-generate-glyphs) |
| 523 | (vflib nil nil |
| 524 | vflib-generate-prologue vflib-generate-font vflib-generate-glyphs)) |
| 525 | "Alist of information of external libraries to support PostScript printing. |
| 526 | Each element has the form: |
| 527 | |
| 528 | (FONT-SRC FEATURE INITIALIZED-P PROLOGUE-FUNC FONT-FUNC GLYPHS-FUNC) |
| 529 | |
| 530 | FONT-SRC is the font source: builtin, bdf, pcf, or vflib. |
| 531 | |
| 532 | FEATURE is the feature that provide a facility to handle FONT-SRC. Except for |
| 533 | `builtin' FONT-SRC, this feature is automatically `require'd before handling |
| 534 | FONT-SRC. Currently, we only have the feature `ps-bdf'. |
| 535 | |
| 536 | INITIALIZED-P indicates if this library is initialized or not. |
| 537 | |
| 538 | PROLOGUE-FUNC is a function to generate PostScript code which define several |
| 539 | PostScript procedures that will be called by FONT-FUNC and GLYPHS-FUNC. It is |
| 540 | called with no argument, and should return a list of strings. |
| 541 | |
| 542 | FONT-FUNC is a function to generate PostScript code which define a new font. It |
| 543 | is called with one argument FONT-SPEC, and should return a list of strings. |
| 544 | |
| 545 | GLYPHS-FUNC is a function to generate PostScript code which define glyphs of |
| 546 | characters. It is called with three arguments FONT-SPEC, CODE-LIST, and BYTES, |
| 547 | and should return a list of strings.") |
| 548 | |
| 549 | (defun ps-mule-init-external-library (font-spec) |
| 550 | "Initialize external library specified by FONT-SPEC for PostScript printing. |
| 551 | See the documentation of `ps-mule-get-font-spec' for FONT-SPEC's meaning." |
| 552 | (let* ((font-src (ps-mule-font-spec-src font-spec)) |
| 553 | (slot (assq font-src ps-mule-external-libraries))) |
| 554 | (or (not font-src) |
| 555 | (nth 2 slot) |
| 556 | (let ((func (nth 3 slot))) |
| 557 | (if func |
| 558 | (progn |
| 559 | (require (nth 1 slot)) |
| 560 | (ps-output-prologue (funcall func)))) |
| 561 | (setcar (nthcdr 2 slot) t))))) |
| 562 | |
| 563 | ;; Cached glyph information of fonts, alist of: |
| 564 | ;; (FONT-NAME ((FONT-TYPE-NUMBER . SCALED-FONT-NAME) ...) |
| 565 | ;; cache CODE0 CODE1 ...) |
| 566 | (defvar ps-mule-font-cache nil) |
| 567 | |
| 568 | (defun ps-mule-generate-font (font-spec charset &optional header-p) |
| 569 | "Generate PostScript codes to define a new font in FONT-SPEC for CHARSET. |
| 570 | |
| 571 | If optional 3rd arg HEADER-P is non-nil, generate codes to define a header |
| 572 | font." |
| 573 | (let* ((font-name (ps-mule-font-spec-name font-spec)) |
| 574 | (font-name (if (consp font-name) (car font-name) font-name)) |
| 575 | (font-cache (assoc font-name ps-mule-font-cache)) |
| 576 | (font-src (ps-mule-font-spec-src font-spec)) |
| 577 | (func (nth 4 (assq font-src ps-mule-external-libraries))) |
| 578 | (font-size (if header-p (if (eq ps-current-font 0) |
| 579 | ps-header-title-font-size-internal |
| 580 | ps-header-font-size-internal) |
| 581 | ps-font-size-internal)) |
| 582 | (current-font (+ ps-current-font (if header-p 10 0))) |
| 583 | (scaled-font-name |
| 584 | (cond (header-p |
| 585 | (format "h%d" ps-current-font)) |
| 586 | ((eq charset 'ascii) |
| 587 | (format "f%d" ps-current-font)) |
| 588 | (t |
| 589 | (format "f%02x-%d" (charset-id charset) ps-current-font))))) |
| 590 | (and func (not font-cache) |
| 591 | (ps-output-prologue (funcall func charset font-spec))) |
| 592 | (ps-output-prologue |
| 593 | (list (format "/%s %f /%s Def%sFontMule\n" |
| 594 | scaled-font-name font-size font-name |
| 595 | (if (or header-p |
| 596 | (eq ps-mule-current-charset 'ascii)) |
| 597 | "Ascii" "")))) |
| 598 | (if font-cache |
| 599 | (setcar (cdr font-cache) |
| 600 | (cons (cons current-font scaled-font-name) |
| 601 | (nth 1 font-cache))) |
| 602 | (setq font-cache (list font-name |
| 603 | (list (cons current-font scaled-font-name)) |
| 604 | 'cache) |
| 605 | ps-mule-font-cache (cons font-cache ps-mule-font-cache))) |
| 606 | font-cache)) |
| 607 | |
| 608 | (defun ps-mule-generate-glyphs (font-spec code-list) |
| 609 | "Generate PostScript codes which generate glyphs for CODE-LIST of FONT-SPEC." |
| 610 | (let* ((font-src (ps-mule-font-spec-src font-spec)) |
| 611 | (func (nth 5 (assq font-src ps-mule-external-libraries)))) |
| 612 | (and func |
| 613 | (ps-output-prologue |
| 614 | (funcall func font-spec code-list |
| 615 | (ps-mule-font-spec-bytes font-spec)))))) |
| 616 | |
| 617 | (defun ps-mule-prepare-font (font-spec string charset |
| 618 | &optional no-setfont header-p) |
| 619 | "Generate PostScript codes to print STRING of CHARSET by font FONT-SPEC. |
| 620 | |
| 621 | The generated code is inserted on prologue part except the code that sets the |
| 622 | current font (using PostScript procedure `FM'). |
| 623 | |
| 624 | If optional 4th arg NO-SETFONT is non-nil, don't generate the code for setting |
| 625 | the current font. |
| 626 | |
| 627 | If optional 5th arg HEADER-P is non-nil, generate a code for setting a header |
| 628 | font." |
| 629 | (let* ((font-name (ps-mule-font-spec-name font-spec)) |
| 630 | (font-name (if (consp font-name) (car font-name) font-name)) |
| 631 | (current-font (+ ps-current-font (if header-p 10 0))) |
| 632 | (font-cache (assoc font-name ps-mule-font-cache))) |
| 633 | (or (and font-cache (assq current-font (nth 1 font-cache))) |
| 634 | (setq font-cache (ps-mule-generate-font font-spec charset header-p))) |
| 635 | (or no-setfont |
| 636 | (let ((new-font (cdr (assq current-font (nth 1 font-cache))))) |
| 637 | (or (equal new-font ps-last-font) |
| 638 | (progn |
| 639 | (ps-output (format "/%s FM\n" new-font)) |
| 640 | (setq ps-last-font new-font))))) |
| 641 | (if (nth 5 (assq (ps-mule-font-spec-src font-spec) |
| 642 | ps-mule-external-libraries)) |
| 643 | ;; We have to generate PostScript codes which define glyphs. |
| 644 | (let* ((cached-codes (nthcdr 2 font-cache)) |
| 645 | (bytes (ps-mule-font-spec-bytes font-spec)) |
| 646 | (len (length string)) |
| 647 | (i 0) |
| 648 | newcodes code) |
| 649 | (while (< i len) |
| 650 | (setq code (if (= bytes 1) |
| 651 | (aref string i) |
| 652 | (+ (* (aref string i) 256) (aref string (1+ i))))) |
| 653 | (or (memq code cached-codes) |
| 654 | (progn |
| 655 | (setq newcodes (cons code newcodes)) |
| 656 | (setcdr cached-codes (cons code (cdr cached-codes))))) |
| 657 | (setq i (+ i bytes))) |
| 658 | (and newcodes |
| 659 | (ps-mule-generate-glyphs font-spec newcodes)))))) |
| 660 | |
| 661 | ;;;###autoload |
| 662 | (defun ps-mule-prepare-ascii-font (string) |
| 663 | "Setup special ASCII font for STRING. |
| 664 | STRING should contain only ASCII characters." |
| 665 | (let ((font-spec |
| 666 | (ps-mule-get-font-spec |
| 667 | 'ascii |
| 668 | (car (nth ps-current-font (ps-font-alist 'ps-font-for-text)))))) |
| 669 | (and font-spec |
| 670 | (ps-mule-prepare-font font-spec string 'ascii)))) |
| 671 | |
| 672 | ;;;###autoload |
| 673 | (defun ps-mule-set-ascii-font () |
| 674 | (unless (eq ps-mule-current-charset 'ascii) |
| 675 | (ps-set-font ps-current-font) |
| 676 | (setq ps-mule-current-charset 'ascii))) |
| 677 | |
| 678 | ;; List of charsets of multi-byte characters in a text being printed. |
| 679 | ;; If the text doesn't contain any multi-byte characters (i.e. only ASCII), |
| 680 | ;; the value is nil. |
| 681 | (defvar ps-mule-charset-list nil) |
| 682 | |
| 683 | ;; This is a PostScript code inserted in the header of generated PostScript. |
| 684 | (defconst ps-mule-prologue |
| 685 | "%%%% Start of Mule Section |
| 686 | |
| 687 | %% Working dictionary for general use. |
| 688 | /MuleDict 10 dict def |
| 689 | |
| 690 | %% Adjust /RelativeCompose properly by checking /BaselineOffset. |
| 691 | /AdjustRelativeCompose { % fontdict |- fontdict |
| 692 | dup length 2 add dict begin |
| 693 | { 1 index /FID ne { def } { pop pop } ifelse } forall |
| 694 | currentdict /BaselineOffset known { |
| 695 | BaselineOffset false eq { /BaselineOffset 0 def } if |
| 696 | } { |
| 697 | /BaselineOffset 0 def |
| 698 | } ifelse |
| 699 | currentdict /RelativeCompose known not { |
| 700 | /RelativeCompose [ 0 0.1 ] def |
| 701 | } { |
| 702 | RelativeCompose false ne { |
| 703 | [ BaselineOffset RelativeCompose BaselineOffset add |
| 704 | [ FontMatrix { FontSize div } forall ] transform ] |
| 705 | /RelativeCompose exch def |
| 706 | } if |
| 707 | } ifelse |
| 708 | currentdict |
| 709 | end |
| 710 | } def |
| 711 | |
| 712 | %% Define already scaled font for non-ASCII character sets. |
| 713 | /DefFontMule { % fontname size basefont |- -- |
| 714 | findfont exch scalefont AdjustRelativeCompose definefont pop |
| 715 | } bind def |
| 716 | |
| 717 | %% Define already scaled font for ASCII character sets. |
| 718 | /DefAsciiFontMule { % fontname size basefont |- |
| 719 | MuleDict begin |
| 720 | findfont dup /Encoding get /ISOLatin1Encoding exch def |
| 721 | exch scalefont AdjustRelativeCompose reencodeFontISO |
| 722 | end |
| 723 | } def |
| 724 | |
| 725 | /CurrentFont false def |
| 726 | |
| 727 | %% Set the specified font to use. |
| 728 | %% For non-ASCII font, don't install Ascent, etc. |
| 729 | /FM { % fontname |- -- |
| 730 | /font exch def |
| 731 | font /f0 eq font /f1 eq font /f2 eq font /f3 eq or or or { |
| 732 | font F |
| 733 | } { |
| 734 | font findfont setfont |
| 735 | } ifelse |
| 736 | } bind def |
| 737 | |
| 738 | %% Show vacant box for characters which don't have appropriate font. |
| 739 | /SB { % count column |- -- |
| 740 | SpaceWidth mul /w exch def |
| 741 | 1 exch 1 exch { %for |
| 742 | pop |
| 743 | gsave |
| 744 | 0 setlinewidth |
| 745 | 0 Descent rmoveto w 0 rlineto |
| 746 | 0 LineHeight rlineto w neg 0 rlineto closepath stroke |
| 747 | grestore |
| 748 | w 0 rmoveto |
| 749 | } for |
| 750 | } bind def |
| 751 | |
| 752 | %% Flag to tell if we are now handling a composition. This is |
| 753 | %% defined here because both composition handler and bitmap font |
| 754 | %% handler require it. |
| 755 | /Composing false def |
| 756 | |
| 757 | %%%% End of Mule Section |
| 758 | |
| 759 | " |
| 760 | "PostScript code for printing multi-byte characters.") |
| 761 | |
| 762 | (defvar ps-mule-prologue-generated nil) |
| 763 | |
| 764 | (defun ps-mule-prologue-generated () |
| 765 | (unless ps-mule-prologue-generated |
| 766 | (ps-output-prologue ps-mule-prologue) |
| 767 | (setq ps-mule-prologue-generated t))) |
| 768 | |
| 769 | (defun ps-mule-find-wrappoint (from to char-width &optional composition) |
| 770 | "Find the longest sequence which is printable in the current line. |
| 771 | |
| 772 | The search starts at FROM and goes until TO. |
| 773 | |
| 774 | Optional 4th arg COMPOSITION, if non-nil, is information of |
| 775 | composition starting at FROM. |
| 776 | |
| 777 | If COMPOSITION is nil, it is assumed that all characters between FROM |
| 778 | and TO belong to a charset in `ps-mule-current-charset'. Otherwise, |
| 779 | it is assumed that all characters between FROM and TO belong to the |
| 780 | same composition. |
| 781 | |
| 782 | CHAR-WIDTH is the average width of ASCII characters in the current font. |
| 783 | |
| 784 | Returns the value: |
| 785 | |
| 786 | (ENDPOS . RUN-WIDTH) |
| 787 | |
| 788 | Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of |
| 789 | the sequence." |
| 790 | (if (or composition (eq ps-mule-current-charset 'composition)) |
| 791 | ;; We must draw one char by one. |
| 792 | (let ((run-width (if composition |
| 793 | (nth 5 composition) |
| 794 | (* (char-width (char-after from)) char-width)))) |
| 795 | (if (> run-width ps-width-remaining) |
| 796 | (cons from ps-width-remaining) |
| 797 | (cons (if composition |
| 798 | (nth 1 composition) |
| 799 | (1+ from)) |
| 800 | run-width))) |
| 801 | ;; We assume that all characters in this range have the same width. |
| 802 | (setq char-width (* char-width (charset-width ps-mule-current-charset))) |
| 803 | (let ((run-width (* (abs (- from to)) char-width))) |
| 804 | (if (> run-width ps-width-remaining) |
| 805 | (cons (min to |
| 806 | (save-excursion |
| 807 | (goto-char from) |
| 808 | (forward-point |
| 809 | (truncate (/ ps-width-remaining char-width))))) |
| 810 | ps-width-remaining) |
| 811 | (cons to run-width))))) |
| 812 | |
| 813 | ;;;###autoload |
| 814 | (defun ps-mule-plot-string (from to &optional bg-color) |
| 815 | "Generate PostScript code for plotting characters in the region FROM and TO. |
| 816 | |
| 817 | It is assumed that all characters in this region belong to the same charset. |
| 818 | |
| 819 | Optional argument BG-COLOR specifies background color. |
| 820 | |
| 821 | Returns the value: |
| 822 | |
| 823 | (ENDPOS . RUN-WIDTH) |
| 824 | |
| 825 | Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of |
| 826 | the sequence." |
| 827 | (setq ps-mule-current-charset (charset-after from)) |
| 828 | (let* ((wrappoint (ps-mule-find-wrappoint |
| 829 | from to (ps-avg-char-width 'ps-font-for-text))) |
| 830 | (to (car wrappoint)) |
| 831 | (font-type (car (nth ps-current-font |
| 832 | (ps-font-alist 'ps-font-for-text)))) |
| 833 | (font-spec (ps-mule-get-font-spec ps-mule-current-charset font-type)) |
| 834 | (string (buffer-substring-no-properties from to))) |
| 835 | (cond |
| 836 | ((= from to) |
| 837 | ;; We can't print any more characters in the current line. |
| 838 | nil) |
| 839 | |
| 840 | (font-spec |
| 841 | ;; We surely have a font for printing this character set. |
| 842 | (ps-output-string (ps-mule-string-encoding font-spec string)) |
| 843 | (ps-output " S\n")) |
| 844 | |
| 845 | ((eq ps-mule-current-charset 'latin-iso8859-1) |
| 846 | ;; Latin-1 can be printed by a normal ASCII font. |
| 847 | (ps-output-string (ps-mule-string-ascii string)) |
| 848 | (ps-output " S\n")) |
| 849 | |
| 850 | ;; This case is obsolete for Emacs 21. |
| 851 | ((eq ps-mule-current-charset 'composition) |
| 852 | (ps-mule-plot-composition from (1+ from) bg-color)) |
| 853 | |
| 854 | (t |
| 855 | ;; No way to print this charset. Just show a vacant box of an |
| 856 | ;; appropriate width. |
| 857 | (ps-output (format "%d %d SB\n" |
| 858 | (length string) |
| 859 | (if (eq ps-mule-current-charset 'composition) |
| 860 | (char-width (char-after from)) |
| 861 | (charset-width ps-mule-current-charset)))))) |
| 862 | wrappoint)) |
| 863 | |
| 864 | ;;;###autoload |
| 865 | (defun ps-mule-plot-composition (from to &optional bg-color) |
| 866 | "Generate PostScript code for plotting composition in the region FROM and TO. |
| 867 | |
| 868 | It is assumed that all characters in this region belong to the same |
| 869 | composition. |
| 870 | |
| 871 | Optional argument BG-COLOR specifies background color. |
| 872 | |
| 873 | Returns the value: |
| 874 | |
| 875 | (ENDPOS . RUN-WIDTH) |
| 876 | |
| 877 | Where ENDPOS is the end position of the sequence and RUN-WIDTH is the width of |
| 878 | the sequence." |
| 879 | (let* ((composition (find-composition from nil nil t)) |
| 880 | (wrappoint (ps-mule-find-wrappoint |
| 881 | from to (ps-avg-char-width 'ps-font-for-text) |
| 882 | composition)) |
| 883 | (to (car wrappoint)) |
| 884 | (font-type (car (nth ps-current-font |
| 885 | (ps-font-alist 'ps-font-for-text))))) |
| 886 | (if (< from to) |
| 887 | ;; We can print this composition in the current line. |
| 888 | (let ((components (nth 2 composition))) |
| 889 | (ps-mule-plot-components |
| 890 | (ps-mule-prepare-font-for-components components font-type) |
| 891 | (if (nth 3 composition) "RLC" "RBC")))) |
| 892 | wrappoint)) |
| 893 | |
| 894 | ;; Prepare font of FONT-TYPE for printing COMPONENTS. By side effect, |
| 895 | ;; change character elements in COMPONENTS to the form: |
| 896 | ;; ENCODED-STRING or (FONTNAME . ENCODED-STRING) |
| 897 | ;; and change rule elements to the encoded value (integer). |
| 898 | ;; The latter form is used if we much change font for the character. |
| 899 | |
| 900 | (defun ps-mule-prepare-font-for-components (components font-type) |
| 901 | (let ((len (length components)) |
| 902 | (i 0) |
| 903 | elt) |
| 904 | (while (< i len) |
| 905 | (setq elt (aref components i)) |
| 906 | (if (consp elt) |
| 907 | ;; ELT is a composition rule. |
| 908 | (setq elt (encode-composition-rule elt)) |
| 909 | ;; ELT is a glyph character. |
| 910 | (let* ((charset (char-charset elt)) |
| 911 | (font (or (eq charset ps-mule-current-charset) |
| 912 | (if (eq charset 'ascii) |
| 913 | (format "/f%d" ps-current-font) |
| 914 | (format "/f%02x-%d" |
| 915 | (charset-id charset) ps-current-font)))) |
| 916 | str) |
| 917 | (setq ps-mule-current-charset charset |
| 918 | str (ps-mule-string-encoding |
| 919 | (ps-mule-get-font-spec charset font-type) |
| 920 | (char-to-string elt) |
| 921 | 'no-setfont)) |
| 922 | (if (stringp font) |
| 923 | (setq elt (cons font str) ps-last-font font) |
| 924 | (setq elt str)))) |
| 925 | (aset components i elt) |
| 926 | (setq i (1+ i)))) |
| 927 | components) |
| 928 | |
| 929 | (defun ps-mule-plot-components (components tail) |
| 930 | (let ((elt (aref components 0)) |
| 931 | (len (length components)) |
| 932 | (i 1)) |
| 933 | (ps-output "[ ") |
| 934 | (if (stringp elt) |
| 935 | (ps-output-string elt) |
| 936 | (ps-output (car elt) " ") |
| 937 | (ps-output-string (cdr elt))) |
| 938 | (while (< i len) |
| 939 | (setq elt (aref components i) i (1+ i)) |
| 940 | (ps-output " ") |
| 941 | (cond ((stringp elt) |
| 942 | (ps-output-string elt)) |
| 943 | ((consp elt) |
| 944 | (ps-output (car elt) " ") |
| 945 | (ps-output-string (cdr elt))) |
| 946 | (t ; i.e. (integerp elt) |
| 947 | (ps-output (format "%d" elt))))) |
| 948 | (ps-output " ] " tail "\n"))) |
| 949 | |
| 950 | ;; Composite font support |
| 951 | |
| 952 | (defvar ps-mule-composition-prologue-generated nil) |
| 953 | |
| 954 | (defconst ps-mule-composition-prologue |
| 955 | "%%%% Character composition handler |
| 956 | /RelativeCompositionSkip 0.4 def |
| 957 | |
| 958 | %% Get a bounding box (relative to currentpoint) of STR. |
| 959 | /GetPathBox { % str |- -- |
| 960 | gsave |
| 961 | currentfont /FontType get 3 eq { %ifelse |
| 962 | stringwidth pop pop |
| 963 | } { |
| 964 | currentpoint /y exch def /x exch def |
| 965 | false charpath flattenpath pathbbox |
| 966 | y sub /URY exch def x sub /URX exch def |
| 967 | y sub /LLY exch def x sub /LLX exch def |
| 968 | } ifelse |
| 969 | grestore |
| 970 | } bind def |
| 971 | |
| 972 | %% Apply effects (underline, strikeout, overline, box) to the |
| 973 | %% rectangle specified by TOP BOTTOM LEFT RIGHT. |
| 974 | /SpecialEffect { % -- |- -- |
| 975 | currentpoint dup TOP add /yy exch def BOTTOM add /YY exch def |
| 976 | dup LEFT add /xx exch def RIGHT add /XX exch def |
| 977 | %% Adjust positions for future shadowing. |
| 978 | Effect 8 and 0 ne { |
| 979 | /yy yy Yshadow add def |
| 980 | /XX XX Xshadow add def |
| 981 | } if |
| 982 | Effect 1 and 0 ne { UnderlinePosition Hline } if % underline |
| 983 | Effect 2 and 0 ne { StrikeoutPosition Hline } if % strikeout |
| 984 | Effect 4 and 0 ne { OverlinePosition Hline } if % overline |
| 985 | bg { % background |
| 986 | true |
| 987 | Effect 16 and 0 ne {SpaceBackground doBox} { xx yy XX YY doRect} ifelse |
| 988 | } if |
| 989 | Effect 16 and 0 ne { false 0 doBox } if % box |
| 990 | } def |
| 991 | |
| 992 | %% Show STR with effects (shadow, outline). |
| 993 | /ShowWithEffect { % str |- -- |
| 994 | Effect 8 and 0 ne { dup doShadow } if |
| 995 | Effect 32 and 0 ne { true doOutline } { show } ifelse |
| 996 | } def |
| 997 | |
| 998 | %% Draw COMPONENTS which have the form [ font0? [str0 xoff0 yoff0] ... ]. |
| 999 | /ShowComponents { % components |- - |
| 1000 | LEFT 0 lt { LEFT neg 0 rmoveto } if |
| 1001 | { |
| 1002 | dup type /nametype eq { % font |
| 1003 | FM |
| 1004 | } { % [ str xoff yoff ] |
| 1005 | gsave |
| 1006 | aload pop rmoveto ShowWithEffect |
| 1007 | grestore |
| 1008 | } ifelse |
| 1009 | } forall |
| 1010 | RIGHT 0 rmoveto |
| 1011 | } def |
| 1012 | |
| 1013 | %% Show relative composition. |
| 1014 | /RLC { % [ font0? str0 font1? str1 ... fontN? strN ] |- -- |
| 1015 | /components exch def |
| 1016 | /Composing true def |
| 1017 | /first true def |
| 1018 | gsave |
| 1019 | [ components { |
| 1020 | /elt exch def |
| 1021 | elt type /nametype eq { % font |
| 1022 | elt dup FM |
| 1023 | } { first { % first string |
| 1024 | /first false def |
| 1025 | elt GetPathBox |
| 1026 | %% Bounding box of overall glyphs. |
| 1027 | /LEFT LLX def |
| 1028 | /RIGHT URX def |
| 1029 | /TOP URY def |
| 1030 | /BOTTOM LLY def |
| 1031 | currentfont /RelativeCompose known { |
| 1032 | /relative currentfont /RelativeCompose get def |
| 1033 | } { |
| 1034 | %% Disable relative composition by setting sufficiently low |
| 1035 | %% and high positions. |
| 1036 | /relative [ -100000 100000 ] def |
| 1037 | } ifelse |
| 1038 | [ elt 0 0 ] |
| 1039 | } { % other strings |
| 1040 | elt GetPathBox |
| 1041 | [ elt % str |
| 1042 | LLX 0 lt { RIGHT } { 0 } ifelse % xoff |
| 1043 | LLY relative 1 get ge { % compose on TOP |
| 1044 | TOP LLY sub RelativeCompositionSkip add % yoff |
| 1045 | /TOP TOP URY LLY sub add RelativeCompositionSkip add def |
| 1046 | } { URY relative 0 get le { % compose under BOTTOM |
| 1047 | BOTTOM URY sub RelativeCompositionSkip sub % yoff |
| 1048 | /BOTTOM BOTTOM URY LLY sub sub |
| 1049 | RelativeCompositionSkip sub def |
| 1050 | } { |
| 1051 | 0 % yoff |
| 1052 | URY TOP gt { /TOP URY def } if |
| 1053 | LLY BOTTOM lt { /BOTTOM LLY def } if |
| 1054 | } ifelse } ifelse |
| 1055 | ] |
| 1056 | URX RIGHT gt { /RIGHT URX def } if |
| 1057 | } ifelse } ifelse |
| 1058 | } forall ] /components exch def |
| 1059 | grestore |
| 1060 | |
| 1061 | %% Reflect special effects. |
| 1062 | SpecialEffect |
| 1063 | |
| 1064 | %% Draw components while ignoring effects other than shadow and outline. |
| 1065 | components ShowComponents |
| 1066 | /Composing false def |
| 1067 | |
| 1068 | } def |
| 1069 | |
| 1070 | %% Show rule-base composition. |
| 1071 | /RBC { % [ font0? str0 rule1 font1? str1 rule2 ... strN ] |- -- |
| 1072 | /components exch def |
| 1073 | /Composing true def |
| 1074 | /first true def |
| 1075 | gsave |
| 1076 | [ components { |
| 1077 | /elt exch def |
| 1078 | elt type /nametype eq { % font |
| 1079 | elt dup FM |
| 1080 | } { elt type /integertype eq { % rule |
| 1081 | %% This RULE decoding should be compatible with macro |
| 1082 | %% COMPOSITION_DECODE_RULE in emacs/src/composite.h. |
| 1083 | elt 12 idiv dup 3 mod /grefx exch def 3 idiv /grefy exch def |
| 1084 | elt 12 mod dup 3 mod /nrefx exch def 3 idiv /nrefy exch def |
| 1085 | } { first { % first string |
| 1086 | /first false def |
| 1087 | elt GetPathBox |
| 1088 | %% Bounding box of overall glyphs. |
| 1089 | /LEFT LLX def |
| 1090 | /RIGHT URX def |
| 1091 | /TOP URY def |
| 1092 | /BOTTOM LLY def |
| 1093 | /WIDTH RIGHT LEFT sub def |
| 1094 | [ elt 0 0 ] |
| 1095 | } { % other strings |
| 1096 | elt GetPathBox |
| 1097 | /width URX LLX sub def |
| 1098 | /height URY LLY sub def |
| 1099 | /left LEFT [ 0 WIDTH 2 div WIDTH ] grefx get add |
| 1100 | [ 0 width 2 div width ] nrefx get sub def |
| 1101 | /bottom [ TOP 0 BOTTOM TOP BOTTOM add 2 div ] grefy get |
| 1102 | [ height LLY neg 0 height 2 div ] nrefy get sub def |
| 1103 | %% Update bounding box |
| 1104 | left LEFT lt { /LEFT left def } if |
| 1105 | left width add RIGHT gt { /RIGHT left width add def } if |
| 1106 | /WIDTH RIGHT LEFT sub def |
| 1107 | bottom BOTTOM lt { /BOTTOM bottom def } if |
| 1108 | bottom height add TOP gt { /TOP bottom height add def } if |
| 1109 | [ elt left LLX sub bottom LLY sub ] |
| 1110 | } ifelse } ifelse } ifelse |
| 1111 | } forall ] /components exch def |
| 1112 | grestore |
| 1113 | |
| 1114 | %% Reflect special effects. |
| 1115 | SpecialEffect |
| 1116 | |
| 1117 | %% Draw components while ignoring effects other than shadow and outline. |
| 1118 | components ShowComponents |
| 1119 | |
| 1120 | /Composing false def |
| 1121 | } def |
| 1122 | %%%% End of character composition handler |
| 1123 | |
| 1124 | " |
| 1125 | "PostScript code for printing character composition.") |
| 1126 | |
| 1127 | (defun ps-mule-string-ascii (str) |
| 1128 | (ps-set-font ps-current-font) |
| 1129 | (string-as-unibyte (encode-coding-string str 'iso-latin-1))) |
| 1130 | |
| 1131 | ;; Encode STR for a font specified by FONT-SPEC and return the result. |
| 1132 | ;; If necessary, it generates the PostScript code for the font and glyphs to |
| 1133 | ;; print STR. If optional 4th arg HEADER-P is non-nil, it is assumed that STR |
| 1134 | ;; is for headers. |
| 1135 | (defun ps-mule-string-encoding (font-spec str &optional no-setfont header-p) |
| 1136 | (let ((encoding (ps-mule-font-spec-encoding font-spec))) |
| 1137 | (setq str |
| 1138 | (string-as-unibyte |
| 1139 | (cond ((coding-system-p encoding) |
| 1140 | (encode-coding-string str encoding)) |
| 1141 | ((functionp encoding) |
| 1142 | (funcall encoding str)) |
| 1143 | (encoding |
| 1144 | (error "Invalid coding system or function: %s" encoding)) |
| 1145 | (t |
| 1146 | str)))) |
| 1147 | (if (ps-mule-font-spec-src font-spec) |
| 1148 | (ps-mule-prepare-font font-spec str ps-mule-current-charset |
| 1149 | (or no-setfont header-p) |
| 1150 | header-p) |
| 1151 | (or no-setfont |
| 1152 | (ps-set-font ps-current-font))) |
| 1153 | str)) |
| 1154 | |
| 1155 | ;; Bitmap font support |
| 1156 | |
| 1157 | (defvar ps-mule-bitmap-prologue-generated nil) |
| 1158 | |
| 1159 | (defconst ps-mule-bitmap-prologue |
| 1160 | "%%%% Bitmap font handler |
| 1161 | |
| 1162 | /str7 7 string def % working area |
| 1163 | |
| 1164 | %% We grow the dictionary one bunch (1024 entries) by one. |
| 1165 | /BitmapDictArray 256 array def |
| 1166 | /BitmapDictLength 1024 def |
| 1167 | /BitmapDictIndex -1 def |
| 1168 | |
| 1169 | /NewBitmapDict { % -- |- -- |
| 1170 | /BitmapDictIndex BitmapDictIndex 1 add def |
| 1171 | BitmapDictArray BitmapDictIndex BitmapDictLength dict put |
| 1172 | } bind def |
| 1173 | |
| 1174 | %% Make at least one dictionary. |
| 1175 | NewBitmapDict |
| 1176 | |
| 1177 | /AddBitmap { % gloval-charname bitmap-data |- -- |
| 1178 | BitmapDictArray BitmapDictIndex get |
| 1179 | dup length BitmapDictLength ge { |
| 1180 | pop |
| 1181 | NewBitmapDict |
| 1182 | BitmapDictArray BitmapDictIndex get |
| 1183 | } if |
| 1184 | 3 1 roll put |
| 1185 | } bind def |
| 1186 | |
| 1187 | /GetBitmap { % gloval-charname |- bitmap-data |
| 1188 | 0 1 BitmapDictIndex { BitmapDictArray exch get begin } for |
| 1189 | load |
| 1190 | 0 1 BitmapDictIndex { pop end } for |
| 1191 | } bind def |
| 1192 | |
| 1193 | %% Return a global character name which can be used as a key in the |
| 1194 | %% bitmap dictionary. |
| 1195 | /GlobalCharName { % fontidx code1 code2 |- gloval-charname |
| 1196 | exch 256 mul add exch 65536 mul add 16777216 add 16 str7 cvrs 0 66 put |
| 1197 | str7 cvn |
| 1198 | } bind def |
| 1199 | |
| 1200 | %% Character code holder for a 2-byte character. |
| 1201 | /FirstCode -1 def |
| 1202 | |
| 1203 | %% Glyph rendering procedure |
| 1204 | /BuildGlyphCommon { % fontdict charname |- -- |
| 1205 | 1 index /FontDimension get 1 eq { /FirstCode 0 store } if |
| 1206 | NameIndexDict exch get % STACK: fontdict charcode |
| 1207 | FirstCode 0 lt { %ifelse |
| 1208 | %% This is the first byte of a 2-byte character. Just |
| 1209 | %% remember it for the moment. |
| 1210 | /FirstCode exch store |
| 1211 | pop |
| 1212 | 0 0 setcharwidth |
| 1213 | } { |
| 1214 | 1 index /FontSize get /size exch def |
| 1215 | 1 index /FontSpaceWidthRatio get /ratio exch def |
| 1216 | 1 index /FontIndex get exch FirstCode exch |
| 1217 | GlobalCharName GetBitmap /bmp exch def |
| 1218 | %% bmp == [ DWIDTH BBX-WIDTH BBX-HEIGHT BBX-XOFF BBX-YOFF BITMAP ] |
| 1219 | Composing { %ifelse |
| 1220 | /FontMatrix get [ exch { size div } forall ] /mtrx exch def |
| 1221 | bmp 3 get bmp 4 get mtrx transform |
| 1222 | /LLY exch def /LLX exch def |
| 1223 | bmp 1 get bmp 3 get add bmp 2 get bmp 4 get add mtrx transform |
| 1224 | /URY exch def /URX exch def |
| 1225 | } { |
| 1226 | pop |
| 1227 | } ifelse |
| 1228 | /FirstCode -1 store |
| 1229 | |
| 1230 | bmp 0 get SpaceWidthRatio ratio div mul size div 0 % wx wy |
| 1231 | setcharwidth % We can't use setcachedevice here. |
| 1232 | |
| 1233 | bmp 1 get 0 gt bmp 2 get 0 gt and { |
| 1234 | bmp 1 get bmp 2 get % width height |
| 1235 | true % polarity |
| 1236 | [ size 0 0 size neg bmp 3 get neg bmp 2 get bmp 4 get add ] % matrix |
| 1237 | bmp 5 1 getinterval cvx % datasrc |
| 1238 | imagemask |
| 1239 | } if |
| 1240 | } ifelse |
| 1241 | } bind def |
| 1242 | |
| 1243 | /BuildCharCommon { |
| 1244 | 1 index /Encoding get exch get |
| 1245 | 1 index /BuildGlyph get exec |
| 1246 | } bind def |
| 1247 | |
| 1248 | %% Bitmap font creator |
| 1249 | |
| 1250 | %% Common Encoding shared by all bitmap fonts. |
| 1251 | /EncodingCommon 256 array def |
| 1252 | %% Mapping table from character name to character code. |
| 1253 | /NameIndexDict 256 dict def |
| 1254 | 0 1 255 { %for |
| 1255 | /idx exch def |
| 1256 | /idxname idx 256 add 16 (XXX) cvrs dup 0 67 put cvn def % `C' == 67 |
| 1257 | EncodingCommon idx idxname put |
| 1258 | NameIndexDict idxname idx put |
| 1259 | } for |
| 1260 | |
| 1261 | /GlobalFontIndex 0 def |
| 1262 | |
| 1263 | %% fontname dim col fontsize relative-compose baseline-offset fbbx |- -- |
| 1264 | /BitmapFont { |
| 1265 | 15 dict begin |
| 1266 | /FontBBox exch def |
| 1267 | /BaselineOffset exch def |
| 1268 | /RelativeCompose exch def |
| 1269 | /FontSize exch def |
| 1270 | /FontBBox [ FontBBox { FontSize div } forall ] def |
| 1271 | FontBBox 2 get FontBBox 0 get sub exch div |
| 1272 | /FontSpaceWidthRatio exch def |
| 1273 | /FontDimension exch def |
| 1274 | /FontIndex GlobalFontIndex def |
| 1275 | /FontType 3 def |
| 1276 | /FontMatrix matrix def |
| 1277 | /Encoding EncodingCommon def |
| 1278 | /BuildGlyph { BuildGlyphCommon } def |
| 1279 | /BuildChar { BuildCharCommon } def |
| 1280 | currentdict end |
| 1281 | definefont pop |
| 1282 | /GlobalFontIndex GlobalFontIndex 1 add def |
| 1283 | } bind def |
| 1284 | |
| 1285 | %% Define a new bitmap font. |
| 1286 | %% fontname dim col fontsize relative-compose baseline-offset fbbx |- -- |
| 1287 | /NF { |
| 1288 | /fbbx exch def |
| 1289 | %% Convert BDF's FontBoundingBox to PostScript's FontBBox |
| 1290 | [ fbbx 2 get fbbx 3 get |
| 1291 | fbbx 2 get fbbx 0 get add fbbx 3 get fbbx 1 get add ] |
| 1292 | BitmapFont |
| 1293 | } bind def |
| 1294 | |
| 1295 | %% Define a glyph for the specified font and character. |
| 1296 | /NG { % fontname charcode bitmap-data |- -- |
| 1297 | /bmp exch def |
| 1298 | exch findfont dup /BaselineOffset get bmp 4 get add bmp exch 4 exch put |
| 1299 | /FontIndex get exch |
| 1300 | dup 256 idiv exch 256 mod GlobalCharName |
| 1301 | bmp AddBitmap |
| 1302 | } bind def |
| 1303 | %%%% End of bitmap font handler |
| 1304 | |
| 1305 | ") |
| 1306 | |
| 1307 | ;; External library support. |
| 1308 | |
| 1309 | ;; The following three functions are to be called from external |
| 1310 | ;; libraries which support bitmap fonts (e.g. `bdf') to get |
| 1311 | ;; appropriate PostScript code. |
| 1312 | |
| 1313 | (defun ps-mule-generate-bitmap-prologue () |
| 1314 | (unless ps-mule-bitmap-prologue-generated |
| 1315 | (setq ps-mule-bitmap-prologue-generated t) |
| 1316 | (list ps-mule-bitmap-prologue))) |
| 1317 | |
| 1318 | (defun ps-mule-generate-bitmap-font (&rest args) |
| 1319 | (list (apply 'format "/%s %d %d %f %S %d %S NF\n" args))) |
| 1320 | |
| 1321 | (defun ps-mule-generate-bitmap-glyph (font-name code dwidth bbx bitmap) |
| 1322 | (format "/%s %d [ %d %d %d %d %d <%s> ] NG\n" |
| 1323 | font-name code |
| 1324 | dwidth (aref bbx 0) (aref bbx 1) (aref bbx 2) (aref bbx 3) |
| 1325 | bitmap)) |
| 1326 | |
| 1327 | ;; Mule specific initializers. |
| 1328 | |
| 1329 | ;;;###autoload |
| 1330 | (defun ps-mule-initialize () |
| 1331 | "Initialize global data for printing multi-byte characters." |
| 1332 | (setq ps-mule-font-cache nil |
| 1333 | ps-mule-prologue-generated nil |
| 1334 | ps-mule-composition-prologue-generated nil |
| 1335 | ps-mule-bitmap-prologue-generated nil) |
| 1336 | (mapcar `(lambda (x) (setcar (nthcdr 2 x) nil)) |
| 1337 | ps-mule-external-libraries)) |
| 1338 | |
| 1339 | (defvar ps-mule-header-charsets nil) |
| 1340 | |
| 1341 | ;;;###autoload |
| 1342 | (defun ps-mule-encode-header-string (string fonttag) |
| 1343 | "Generate PostScript code for ploting STRING by font FONTTAG. |
| 1344 | FONTTAG should be a string \"/h0\" or \"/h1\"." |
| 1345 | (setq string (cond ((not (stringp string)) |
| 1346 | "") |
| 1347 | ((multibyte-string-p string) |
| 1348 | (copy-sequence string)) |
| 1349 | (t |
| 1350 | (string-make-multibyte string)))) |
| 1351 | (when ps-mule-header-charsets |
| 1352 | (if (eq (car ps-mule-header-charsets) 'latin-iso8859-1) |
| 1353 | ;; Latin1 characters can be printed by the standard PostScript |
| 1354 | ;; font. Converts the other non-ASCII characters to `?'. |
| 1355 | (let ((len (length string)) |
| 1356 | (i 0)) |
| 1357 | (while (< i len) |
| 1358 | (or (memq (char-charset (aref string i)) '(ascii latin-iso8859-1)) |
| 1359 | (aset string i ??)) |
| 1360 | (setq i (1+ i))) |
| 1361 | (setq string (encode-coding-string string 'iso-latin-1))) |
| 1362 | ;; We must prepare a font for the first non-ASCII and non-Latin1 |
| 1363 | ;; character in STRING. |
| 1364 | (let* ((ps-current-font (if (string= fonttag "/h0") 0 1)) |
| 1365 | (ps-mule-current-charset (car ps-mule-header-charsets)) |
| 1366 | (font-type (car (nth ps-current-font |
| 1367 | (ps-font-alist 'ps-font-for-header)))) |
| 1368 | (font-spec (ps-mule-get-font-spec ps-mule-current-charset |
| 1369 | font-type))) |
| 1370 | (if (or (not font-spec) |
| 1371 | (/= (charset-dimension ps-mule-current-charset) 1)) |
| 1372 | ;; We don't have a proper font, or we can't print them on |
| 1373 | ;; header because this kind of charset is not ASCII |
| 1374 | ;; compatible. |
| 1375 | (let ((len (length string)) |
| 1376 | (i 0)) |
| 1377 | (while (< i len) |
| 1378 | (or (memq (char-charset (aref string i)) |
| 1379 | '(ascii latin-iso8859-1)) |
| 1380 | (aset string i ??)) |
| 1381 | (setq i (1+ i))) |
| 1382 | (setq string (encode-coding-string string 'iso-latin-1))) |
| 1383 | (let ((charsets (list 'ascii (car ps-mule-header-charsets))) |
| 1384 | (len (length string)) |
| 1385 | (i 0)) |
| 1386 | (while (< i len) |
| 1387 | (or (memq (char-charset (aref string i)) charsets) |
| 1388 | (aset string i ??)) |
| 1389 | (setq i (1+ i)))) |
| 1390 | (setq string (ps-mule-string-encoding font-spec string nil t)))))) |
| 1391 | string) |
| 1392 | |
| 1393 | ;;;###autoload |
| 1394 | (defun ps-mule-header-string-charsets () |
| 1395 | "Return a list of character sets that appears in header strings." |
| 1396 | (let* ((str (ps-header-footer-string)) |
| 1397 | (len (length str)) |
| 1398 | (i 0) |
| 1399 | charset-list) |
| 1400 | (while (< i len) |
| 1401 | (let ((charset (char-charset (aref str i)))) |
| 1402 | (setq i (1+ i)) |
| 1403 | (or (eq charset 'ascii) |
| 1404 | (memq charset charset-list) |
| 1405 | (setq charset-list (cons charset charset-list))))) |
| 1406 | charset-list)) |
| 1407 | |
| 1408 | ;;;###autoload |
| 1409 | (defun ps-mule-begin-job (from to) |
| 1410 | "Start printing job for multi-byte chars between FROM and TO. |
| 1411 | This checks if all multi-byte characters in the region are printable or not." |
| 1412 | (setq ps-mule-charset-list nil |
| 1413 | ps-mule-header-charsets nil |
| 1414 | ps-mule-font-info-database |
| 1415 | (cond ((eq ps-multibyte-buffer 'non-latin-printer) |
| 1416 | ps-mule-font-info-database-ps) |
| 1417 | ((eq ps-multibyte-buffer 'bdf-font) |
| 1418 | ps-mule-font-info-database-bdf) |
| 1419 | ((eq ps-multibyte-buffer 'bdf-font-except-latin) |
| 1420 | ps-mule-font-info-database-ps-bdf) |
| 1421 | (t |
| 1422 | ps-mule-font-info-database-default))) |
| 1423 | (and (boundp 'enable-multibyte-characters) |
| 1424 | enable-multibyte-characters |
| 1425 | ;; Initialize `ps-mule-charset-list'. If some characters aren't |
| 1426 | ;; printable, warn it. |
| 1427 | (let ((charsets (find-charset-region from to))) |
| 1428 | (setq charsets (delq 'ascii (delq 'unknown (delq nil charsets))) |
| 1429 | ps-mule-charset-list charsets) |
| 1430 | (save-excursion |
| 1431 | (goto-char from) |
| 1432 | (and (search-forward "\200" to t) |
| 1433 | (setq ps-mule-charset-list |
| 1434 | (cons 'composition ps-mule-charset-list)))) |
| 1435 | ;; We also have to check non-ASCII charsets in the header strings. |
| 1436 | (let ((tail (ps-mule-header-string-charsets))) |
| 1437 | (while tail |
| 1438 | (unless (eq (car tail) 'ascii) |
| 1439 | (setq ps-mule-header-charsets |
| 1440 | (cons (car tail) ps-mule-header-charsets)) |
| 1441 | (or (memq (car tail) charsets) |
| 1442 | (setq charsets (cons (car tail) charsets)))) |
| 1443 | (setq tail (cdr tail)))) |
| 1444 | (while charsets |
| 1445 | (setq charsets |
| 1446 | (cond |
| 1447 | ((or (eq (car charsets) 'composition) |
| 1448 | (ps-mule-printable-p (car charsets))) |
| 1449 | (cdr charsets)) |
| 1450 | ((y-or-n-p |
| 1451 | "Font for some characters not found, continue anyway? ") |
| 1452 | nil) |
| 1453 | (t |
| 1454 | (error "Printing cancelled"))))))) |
| 1455 | |
| 1456 | (setq ps-mule-current-charset 'ascii) |
| 1457 | |
| 1458 | (if (and (nth 2 (find-composition from to)) |
| 1459 | (not ps-mule-composition-prologue-generated)) |
| 1460 | (progn |
| 1461 | (ps-mule-prologue-generated) |
| 1462 | (ps-output-prologue ps-mule-composition-prologue) |
| 1463 | (setq ps-mule-composition-prologue-generated t))) |
| 1464 | |
| 1465 | (if (or ps-mule-charset-list ps-mule-header-charsets) |
| 1466 | (let ((the-list (append ps-mule-header-charsets ps-mule-charset-list)) |
| 1467 | font-spec elt) |
| 1468 | (ps-mule-prologue-generated) |
| 1469 | ;; If external functions are necessary, generate prologues for them. |
| 1470 | (while the-list |
| 1471 | (setq elt (car the-list) |
| 1472 | the-list (cdr the-list)) |
| 1473 | (cond ((and (eq elt 'composition) |
| 1474 | (not ps-mule-composition-prologue-generated)) |
| 1475 | (ps-output-prologue ps-mule-composition-prologue) |
| 1476 | (setq ps-mule-composition-prologue-generated t)) |
| 1477 | ((setq font-spec (ps-mule-get-font-spec elt 'normal)) |
| 1478 | (ps-mule-init-external-library font-spec)))))) |
| 1479 | |
| 1480 | ;; If ASCII font is also specified in ps-mule-font-info-database, |
| 1481 | ;; use it instead of what specified in ps-font-info-database. |
| 1482 | (let ((font-spec (ps-mule-get-font-spec 'ascii 'normal))) |
| 1483 | (if font-spec |
| 1484 | (progn |
| 1485 | (ps-mule-prologue-generated) |
| 1486 | (ps-mule-init-external-library font-spec) |
| 1487 | (let ((font (ps-font-alist 'ps-font-for-text)) |
| 1488 | (ps-current-font 0)) |
| 1489 | (while font |
| 1490 | ;; Be sure to download a glyph for SPACE in advance. |
| 1491 | (ps-mule-prepare-font (ps-mule-get-font-spec 'ascii (car font)) |
| 1492 | " " 'ascii 'no-setfont) |
| 1493 | (setq font (cdr font) |
| 1494 | ps-current-font (1+ ps-current-font))))))) |
| 1495 | |
| 1496 | ;; If the header contains non-ASCII and non-Latin1 characters, prepare a font |
| 1497 | ;; and glyphs for the first occurrence of such characters. |
| 1498 | (if (and ps-mule-header-charsets |
| 1499 | (not (eq (car ps-mule-header-charsets) 'latin-iso8859-1))) |
| 1500 | (let ((font-spec (ps-mule-get-font-spec (car ps-mule-header-charsets) |
| 1501 | 'normal))) |
| 1502 | (if font-spec |
| 1503 | ;; Be sure to download glyphs for "0123456789/" in advance for page |
| 1504 | ;; numbering. |
| 1505 | (let ((ps-current-font 0)) |
| 1506 | (ps-mule-prepare-font font-spec "0123456789/" 'ascii t t))))) |
| 1507 | |
| 1508 | (if ps-mule-charset-list |
| 1509 | ;; We must change this regexp for multi-byte buffer. |
| 1510 | (setq ps-control-or-escape-regexp |
| 1511 | (cond ((eq ps-print-control-characters '8-bit) |
| 1512 | "[^\040-\176]") |
| 1513 | ((eq ps-print-control-characters 'control-8-bit) |
| 1514 | (string-as-multibyte "[^\040-\176\240-\377]")) |
| 1515 | ((eq ps-print-control-characters 'control) |
| 1516 | (string-as-multibyte "[^\040-\176\200-\377]")) |
| 1517 | (t (string-as-multibyte "[^\000-\011\013\015-\377]")))))) |
| 1518 | |
| 1519 | ;;;###autoload |
| 1520 | (defun ps-mule-begin-page () |
| 1521 | (setq ps-mule-current-charset 'ascii)) |
| 1522 | |
| 1523 | |
| 1524 | (provide 'ps-mule) |
| 1525 | |
| 1526 | ;;; arch-tag: bca017b2-66a7-4e59-8584-103e749eadbe |
| 1527 | ;;; ps-mule.el ends here |