Mercurial > hg > xemacs-beta
annotate src/objects-xlike-inc.c @ 4792:95b04754ea8c
Make #'equalp more compatible with CL; add a compiler macro, test & doc it.
lisp/ChangeLog addition:
2009-11-08 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (cl-string-vector-equalp)
(cl-bit-vector-vector-equalp, cl-vector-array-equalp)
(cl-hash-table-contents-equalp): New functions, to implement
equalp treating arrays with identical contents as equivalent, as
specified by Common Lisp.
(equalp): Revise this function to implement array equivalence,
and the hash-table equalp behaviour specified by CL.
* cl-macs.el (equalp): Add a compiler macro for this function,
used when one of the arguments is constant, and as such, its type
is known at compile time.
man/ChangeLog addition:
2009-11-08 Aidan Kehoe <kehoea@parhasard.net>
* lispref/objects.texi (Equality Predicates):
Document #'equalp here, as well as #'equal and #'eq.
tests/ChangeLog addition:
2009-12-31 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Test much of the functionality of equalp; add a pointer to Paul
Dietz' ANSI test suite for this function, converted to Emacs
Lisp. Not including the tests themselves in XEmacs because who
owns the copyright on the files is unclear and the GCL people
didn't respond to my queries.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Thu, 31 Dec 2009 15:09:41 +0000 |
| parents | 75975fd0b7fc |
| children | 0d3ccd5a2509 |
| rev | line source |
|---|---|
| 3659 | 1 /* Shared object code between X and GTK -- include file. |
| 2 Copyright (C) 1991-5, 1997 Free Software Foundation, Inc. | |
| 3 Copyright (C) 1995 Sun Microsystems, Inc. | |
| 4 Copyright (C) 1996, 2001, 2002, 2003 Ben Wing. | |
| 5 | |
| 6 This file is part of XEmacs. | |
| 7 | |
| 8 XEmacs is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 10 Free Software Foundation; either version 2, or (at your option) any | |
| 11 later version. | |
| 12 | |
| 13 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with XEmacs; see the file COPYING. If not, write to | |
| 20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 21 Boston, MA 02111-1307, USA. */ | |
| 22 | |
| 23 /* Synched up with: Not in FSF. */ | |
| 24 | |
| 25 /* Pango is ready for prime-time now, as far as I understand it. The GTK | |
| 26 people should be using that. Oh well. (Aidan Kehoe, Sat Nov 4 12:41:12 | |
| 27 CET 2006) */ | |
| 28 | |
| 29 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901) | |
| 30 | |
| 31 #ifdef DEBUG_XEMACS | |
| 32 # define DEBUG_OBJECTS(FORMAT, ...) \ | |
| 33 do { if (debug_x_objects) stderr_out(FORMAT, __VA_ARGS__); } while (0) | |
| 34 #else /* DEBUG_XEMACS */ | |
| 35 # define DEBUG_OBJECTS(format, ...) | |
| 36 #endif /* DEBUG_XEMACS */ | |
| 37 | |
| 38 #elif defined(__GNUC__) | |
| 39 | |
| 40 #ifdef DEBUG_XEMACS | |
| 41 # define DEBUG_OBJECTS(format, args...) \ | |
| 42 do { if (debug_x_objects) stderr_out(format, args ); } while (0) | |
| 43 #else /* DEBUG_XEMACS */ | |
| 44 # define DEBUG_OBJECTS(format, args...) | |
| 45 #endif /* DEBUG_XEMACS */ | |
| 46 | |
| 47 #else /* defined(__STDC_VERSION__) [...] */ | |
| 48 # define DEBUG_OBJECTS (void) | |
| 49 #endif | |
| 50 | |
| 51 #ifdef MULE | |
| 52 | |
| 53 /* For some code it's reasonable to have only one copy and conditionalize | |
| 54 at run-time. For other code it isn't. */ | |
| 55 | |
| 56 static int | |
| 57 count_hyphens(const Ibyte *str, Bytecount length, Ibyte **last_hyphen) | |
| 58 { | |
| 59 int hyphen_count = 0; | |
| 60 const Ibyte *hyphening = str; | |
| 61 const Ibyte *new_hyphening; | |
| 62 | |
| 63 for (hyphen_count = 0; | |
| 4124 | 64 NULL != (new_hyphening = (Ibyte *) memchr((const void *)hyphening, '-', length)); |
| 3659 | 65 hyphen_count++) |
| 66 { | |
| 67 ++new_hyphening; | |
| 68 length -= new_hyphening - hyphening; | |
| 69 hyphening = new_hyphening; | |
| 70 } | |
| 71 | |
| 72 if (NULL != last_hyphen) | |
| 73 { | |
| 74 *last_hyphen = (Ibyte *)hyphening; | |
| 75 } | |
| 76 | |
| 77 return hyphen_count; | |
| 78 } | |
| 79 | |
| 80 static int | |
| 81 #ifdef THIS_IS_GTK | |
| 82 gtk_font_spec_matches_charset (struct device * USED_IF_XFT (d), | |
| 83 Lisp_Object charset, | |
| 84 const Ibyte *nonreloc, Lisp_Object reloc, | |
| 85 Bytecount offset, Bytecount length, | |
| 86 enum font_specifier_matchspec_stages stage) | |
| 87 #else | |
| 88 x_font_spec_matches_charset (struct device * USED_IF_XFT (d), | |
| 89 Lisp_Object charset, | |
| 90 const Ibyte *nonreloc, Lisp_Object reloc, | |
| 91 Bytecount offset, Bytecount length, | |
| 92 enum font_specifier_matchspec_stages stage) | |
| 93 #endif | |
| 94 { | |
| 95 Lisp_Object registries = Qnil; | |
| 96 long i, registries_len; | |
| 97 const Ibyte *the_nonreloc; | |
| 98 Bytecount the_length; | |
| 99 | |
| 100 the_nonreloc = nonreloc; | |
| 101 the_length = length; | |
| 102 | |
| 103 if (!the_nonreloc) | |
| 104 the_nonreloc = XSTRING_DATA (reloc); | |
| 105 fixup_internal_substring (nonreloc, reloc, offset, &the_length); | |
| 106 the_nonreloc += offset; | |
| 107 | |
| 108 #ifdef USE_XFT | |
| 109 if (stage) | |
| 110 { | |
| 111 Display *dpy = DEVICE_X_DISPLAY (d); | |
| 112 Extbyte *extname; | |
| 113 XftFont *rf; | |
| 114 const Ibyte *the_nonreloc; | |
| 115 | |
| 116 if (!NILP(reloc)) | |
| 117 { | |
| 118 the_nonreloc = XSTRING_DATA (reloc); | |
| 119 LISP_STRING_TO_EXTERNAL (reloc, extname, Qx_font_name_encoding); | |
| 120 rf = xft_open_font_by_name (dpy, extname); | |
| 121 return 0; /* #### maybe this will compile and run ;) */ | |
| 122 /* Jesus, Stephen, what the fuck? */ | |
| 123 } | |
| 124 } | |
| 125 #endif | |
| 126 | |
| 127 /* Hmm, this smells bad. */ | |
|
4353
4143b78d0df0
Merge an old patch of Ben's, involving font instantiation and charsets.
Aidan Kehoe <kehoea@parhasard.net>
parents:
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diff
changeset
|
128 if (NILP (charset)) |
| 3659 | 129 return 1; |
| 130 | |
| 131 /* Hack! Short font names don't have the registry in them, | |
| 132 so we just assume the user knows what they're doing in the | |
| 133 case of ASCII. For other charsets, you gotta give the | |
| 134 long form; sorry buster. | |
| 135 #### FMH: this screws fontconfig/Xft? | |
| 136 STRATEGY: use fontconfig's ability to hack languages and character | |
| 137 sets (lang and charset properties). | |
| 138 #### Maybe we can use the fontconfig model to eliminate the difference | |
| 139 between faces and fonts? No - it looks like that would be an abuse | |
| 140 (fontconfig doesn't know about colors, although Xft does). | |
| 141 */ | |
| 142 if (EQ (charset, Vcharset_ascii) && | |
| 143 (!memchr (the_nonreloc, '*', the_length)) | |
| 144 && (5 > (count_hyphens(the_nonreloc, the_length, NULL)))) | |
| 145 { | |
| 146 return 1; | |
| 147 } | |
| 148 | |
| 149 if (final == stage) | |
| 150 { | |
| 151 registries = Qunicode_registries; | |
| 152 } | |
| 153 else if (initial == stage) | |
| 154 { | |
| 155 registries = XCHARSET_REGISTRIES (charset); | |
| 156 if (NILP(registries)) | |
| 157 { | |
| 158 return 0; | |
| 159 } | |
| 160 } | |
| 161 else assert(0); | |
| 162 | |
| 163 CHECK_VECTOR (registries); | |
| 164 registries_len = XVECTOR_LENGTH(registries); | |
| 165 | |
| 166 for (i = 0; i < registries_len; ++i) | |
| 167 { | |
| 168 if (!(STRINGP(XVECTOR_DATA(registries)[i])) | |
| 169 || (XSTRING_LENGTH(XVECTOR_DATA(registries)[i]) > the_length)) | |
| 170 { | |
| 171 continue; | |
| 172 } | |
| 173 | |
| 174 /* Check if the font spec ends in the registry specified. X11 says | |
| 175 this comparison is case insensitive: XLFD, section 3.11: | |
| 176 | |
| 177 "Alphabetic case distinctions are allowed but are for human | |
| 178 readability concerns only. Conforming X servers will perform | |
| 179 matching on font name query or open requests independent of case." */ | |
| 180 if (0 == qxestrcasecmp(XSTRING_DATA(XVECTOR_DATA(registries)[i]), | |
| 181 the_nonreloc + (the_length - | |
| 182 XSTRING_LENGTH | |
| 183 (XVECTOR_DATA(registries)[i])))) | |
| 184 { | |
| 185 return 1; | |
| 186 } | |
| 187 } | |
| 188 return 0; | |
| 189 } | |
| 190 | |
| 191 static Lisp_Object | |
| 192 xlistfonts_checking_charset (Lisp_Object device, const Extbyte *xlfd, | |
| 193 Lisp_Object charset, | |
| 194 enum font_specifier_matchspec_stages stage) | |
| 195 { | |
| 196 Extbyte **names; | |
| 197 Lisp_Object result = Qnil; | |
| 198 int count = 0, i; | |
| 199 DECLARE_EISTRING(ei_single_result); | |
| 200 | |
| 201 names = XListFonts ( | |
| 202 #ifdef THIS_IS_GTK | |
| 203 GDK_DISPLAY (), | |
| 204 #else | |
| 205 DEVICE_X_DISPLAY (XDEVICE (device)), | |
| 206 #endif | |
| 207 xlfd, MAX_FONT_COUNT, &count); | |
| 208 | |
| 209 for (i = 0; i < count; ++i) | |
| 210 { | |
| 211 eireset(ei_single_result); | |
| 212 eicpy_ext(ei_single_result, names[i], Qx_font_name_encoding); | |
| 213 | |
| 214 if (DEVMETH_OR_GIVEN(XDEVICE (device), font_spec_matches_charset, | |
| 215 (XDEVICE (device), charset, | |
| 216 eidata(ei_single_result), Qnil, 0, | |
| 217 -1, stage), 0)) | |
| 218 { | |
| 219 result = eimake_string(ei_single_result); | |
| 220 DEBUG_OBJECTS ("in xlistfonts_checking_charset, returning %s\n", | |
| 221 eidata(ei_single_result)); | |
| 222 break; | |
| 223 } | |
| 224 } | |
| 225 | |
| 226 if (names) | |
| 227 { | |
| 228 XFreeFontNames (names); | |
| 229 } | |
| 230 | |
| 231 return result; | |
| 232 } | |
| 233 | |
| 234 #ifdef USE_XFT | |
| 235 /* #### debug functions: find a better place for us */ | |
| 236 const char *FcResultToString (FcResult r); | |
| 237 const char * | |
| 238 FcResultToString (FcResult r) | |
| 239 { | |
| 240 static char buffer[256]; | |
| 241 switch (r) | |
| 242 { | |
| 243 case FcResultMatch: | |
| 244 return "FcResultMatch"; | |
| 245 case FcResultNoMatch: | |
| 246 return "FcResultNoMatch"; | |
| 247 case FcResultTypeMismatch: | |
| 248 return "FcResultTypeMismatch"; | |
| 249 case FcResultNoId: | |
| 250 return "FcResultNoId"; | |
| 251 default: | |
| 252 snprintf (buffer, 255, "FcResultUndocumentedValue (%d)", r); | |
| 253 return buffer; | |
| 254 } | |
| 255 } | |
| 256 | |
| 257 const char *FcTypeOfValueToString (FcValue v); | |
| 258 const char * | |
| 259 FcTypeOfValueToString (FcValue v) | |
| 260 { | |
| 261 static char buffer[256]; | |
| 262 switch (v.type) | |
| 263 { | |
| 264 case FcTypeMatrix: | |
| 265 return "FcTypeMatrix"; | |
| 266 case FcTypeString: | |
| 267 return "FcTypeString"; | |
| 268 case FcTypeVoid: | |
| 269 return "FcTypeVoid"; | |
| 270 case FcTypeDouble: | |
| 271 return "FcTypeDouble"; | |
| 272 case FcTypeInteger: | |
| 273 return "FcTypeInteger"; | |
| 274 case FcTypeBool: | |
| 275 return "FcTypeBool"; | |
| 276 case FcTypeCharSet: | |
| 277 return "FcTypeCharSet"; | |
| 278 case FcTypeLangSet: | |
| 279 return "FcTypeLangSet"; | |
| 280 /* #### There is no union member of this type, but there are void* and | |
| 281 FcPattern* members, as of fontconfig.h FC_VERSION 10002 */ | |
| 282 case FcTypeFTFace: | |
| 283 return "FcTypeFTFace"; | |
| 284 default: | |
| 285 snprintf (buffer, 255, "FcTypeUndocumentedType (%d)", v.type); | |
| 286 return buffer; | |
| 287 } | |
| 288 } | |
| 289 | |
| 290 static FcCharSet * | |
| 291 mule_to_fc_charset (Lisp_Object cs) | |
| 292 { | |
| 293 int ucode, i, j; | |
| 294 FcCharSet *fccs; | |
| 295 | |
| 296 CHECK_CHARSET (cs); | |
| 297 fccs = FcCharSetCreate (); | |
| 298 /* #### do we also need to deal with 94 vs. 96 charsets? | |
| 299 ie, how are SP and DEL treated in ASCII? non-graphic should return -1 */ | |
| 300 if (1 == XCHARSET_DIMENSION (cs)) | |
| 301 /* Unicode tables are indexed by offsets from ASCII SP, not by ASCII */ | |
| 302 for (i = 0; i < 96; i++) | |
| 303 { | |
| 304 ucode = ((int *) XCHARSET_TO_UNICODE_TABLE (cs))[i]; | |
| 305 if (ucode >= 0) | |
| 306 /* #### should check for allocation failure */ | |
| 307 FcCharSetAddChar (fccs, (FcChar32) ucode); | |
| 308 } | |
| 309 else if (2 == XCHARSET_DIMENSION (cs)) | |
| 310 /* Unicode tables are indexed by offsets from ASCII SP, not by ASCII */ | |
| 311 for (i = 0; i < 96; i++) | |
| 312 for (j = 0; j < 96; j++) | |
| 313 { | |
| 314 ucode = ((int **) XCHARSET_TO_UNICODE_TABLE (cs))[i][j]; | |
| 315 if (ucode >= 0) | |
| 316 /* #### should check for allocation failure */ | |
| 317 FcCharSetAddChar (fccs, (FcChar32) ucode); | |
| 318 } | |
| 319 else | |
| 320 { | |
| 321 FcCharSetDestroy (fccs); | |
| 322 fccs = NULL; | |
| 323 } | |
| 324 return fccs; | |
| 325 } | |
| 326 | |
| 327 struct charset_reporter { | |
| 328 Lisp_Object *charset; | |
| 329 /* This is a debug facility, require ASCII. */ | |
| 330 Extbyte *language; /* ASCII, please */ | |
|
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Implement more of the fontconfig API.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4757
diff
changeset
|
331 /* Technically this is FcChar8, but fsckin' GCC 4 bitches. |
|
75975fd0b7fc
Implement more of the fontconfig API.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4757
diff
changeset
|
332 RFC 3066 is a combination of ISO 639 and ISO 3166. */ |
| 3659 | 333 Extbyte *rfc3066; /* ASCII, please */ |
| 334 }; | |
| 335 | |
| 336 static struct charset_reporter charset_table[] = | |
| 337 { | |
| 338 /* #### It's my branch, my favorite charsets get checked first! | |
| 339 That's a joke, Son. | |
| 340 Ie, I don't know what I'm doing, so my charsets first is as good as | |
| 341 any other arbitrary order. If you have a better idea, speak up! */ | |
| 342 { &Vcharset_ascii, "English", "en" }, | |
| 343 { &Vcharset_japanese_jisx0208, "Japanese", "ja" }, | |
| 344 { &Vcharset_japanese_jisx0212, "Japanese", "ja" }, | |
| 345 { &Vcharset_katakana_jisx0201, "Japanese", "ja" }, | |
| 346 { &Vcharset_latin_jisx0201, "Japanese", "ja" }, | |
| 347 { &Vcharset_japanese_jisx0208_1978, "Japanese", "ja" }, | |
| 348 { &Vcharset_greek_iso8859_7, "Greek", "el" }, | |
| 349 /* #### all the Chinese need checking | |
| 350 Damn the blood-sucking ISO anyway. */ | |
|
4756
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Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
351 { &Vcharset_chinese_gb2312, "simplified Chinese", "zh-cn" }, |
| 3659 | 352 { &Vcharset_korean_ksc5601, "Korean", "ko" }, |
|
4756
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Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
353 { &Vcharset_chinese_cns11643_1, "traditional Chinese", "zh-tw" }, |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
354 { &Vcharset_chinese_cns11643_2, "traditional Chinese", "zh-tw" }, |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
355 /* #### not obvious how to handle these |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
356 We could (for experimental purposes) make the last element into |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
357 an array of ISO 639 codes, and check for all of them. If a font |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
358 provides some but not others, warn. */ |
| 3659 | 359 { &Vcharset_latin_iso8859_1, NULL, NULL }, |
| 360 { &Vcharset_latin_iso8859_2, NULL, NULL }, | |
| 361 { &Vcharset_latin_iso8859_3, NULL, NULL }, | |
| 362 { &Vcharset_latin_iso8859_4, NULL, NULL }, | |
| 363 { &Vcharset_latin_iso8859_9, NULL, NULL }, | |
| 364 { &Vcharset_latin_iso8859_15, NULL, NULL }, | |
|
4756
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
365 { &Vcharset_thai_tis620, "Thai", "th" }, |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
366 /* We don't have an arabic charset. bidi issues, I guess? */ |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
367 /* { &Vcharset_arabic_iso8859_6, "Arabic", "ar" }, */ |
| 3659 | 368 { &Vcharset_hebrew_iso8859_8, "Hebrew", "he" }, |
|
4756
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
369 /* #### probably close enough for Ukraine? */ |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
370 { &Vcharset_cyrillic_iso8859_5, "Russian", "ru" }, |
| 3659 | 371 /* #### these probably are not quite right */ |
|
4756
5d67242595a8
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Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
372 { &Vcharset_chinese_big5_1, "traditional Chinese", "zh-tw" }, |
|
5d67242595a8
Update charset_table used by Xft.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4494
diff
changeset
|
373 { &Vcharset_chinese_big5_2, "traditional Chinese", "zh-tw" }, |
| 3659 | 374 { NULL, NULL, NULL } |
| 375 }; | |
| 376 | |
| 377 /* Choose appropriate font name for debug messages. | |
| 378 Use only in the top half of next function (enforced with #undef). */ | |
| 379 #define DECLARE_DEBUG_FONTNAME(__xemacs_name) \ | |
| 380 Eistring *__xemacs_name; \ | |
| 381 do \ | |
| 382 { \ | |
| 383 __xemacs_name = debug_xft > 2 ? eistr_fullname \ | |
| 384 : debug_xft > 1 ? eistr_longname \ | |
| 385 : eistr_shortname; \ | |
| 386 } while (0) | |
| 387 | |
| 388 static Lisp_Object | |
| 389 xft_find_charset_font (Lisp_Object font, Lisp_Object charset, | |
| 390 enum font_specifier_matchspec_stages stage) | |
| 391 { | |
| 392 const Extbyte *patternext; | |
| 393 Lisp_Object result = Qnil; | |
| 394 | |
| 395 /* #### with Xft need to handle second stage here -- sjt | |
| 396 Hm. Or maybe not. That would be cool. :-) */ | |
| 397 if (stage) | |
| 398 return Qnil; | |
| 399 | |
| 400 /* Fontconfig converts all FreeType names to UTF-8 before passing them | |
| 401 back to callers---see fcfreetype.c (FcFreeTypeQuery). | |
| 402 I don't believe this is documented. */ | |
| 403 | |
| 404 DEBUG_XFT1 (1, "confirming charset for font instance %s\n", | |
| 405 XSTRING_DATA(font)); | |
| 406 | |
| 407 /* #### this looks like a fair amount of work, but the basic design | |
| 408 has never been rethought, and it should be | |
| 409 | |
| 410 what really should happen here is that we use FcFontSort (FcFontList?) | |
| 411 to get a list of matching fonts, then pick the first (best) one that | |
| 412 gives language or repertoire coverage. | |
| 413 */ | |
| 414 | |
| 415 FcInit (); /* No-op if already initialized. | |
| 416 In fontconfig 2.3.2, this cannot return | |
| 417 failure, but that looks like a bug. We | |
| 418 check for it with FcGetCurrentConfig(), | |
| 419 which *can* fail. */ | |
|
4758
75975fd0b7fc
Implement more of the fontconfig API.
Stephen J. Turnbull <stephen@xemacs.org>
parents:
4757
diff
changeset
|
420 if (!FcConfigGetCurrent()) |
| 3659 | 421 stderr_out ("Failed fontconfig initialization\n"); |
| 422 else | |
| 423 { | |
| 424 FcPattern *fontxft; /* long-lived, freed at end of this block */ | |
| 425 FcResult fcresult; | |
| 426 FcConfig *fcc; | |
| 427 FcChar8 *lang = (FcChar8 *) "en"; /* #### fix this bogus hack! */ | |
| 428 FcCharSet *fccs = NULL; | |
| 429 DECLARE_EISTRING (eistr_shortname); /* user-friendly nickname */ | |
| 430 DECLARE_EISTRING (eistr_longname); /* omit FC_LANG and FC_CHARSET */ | |
| 431 DECLARE_EISTRING (eistr_fullname); /* everything */ | |
| 432 | |
| 433 LISP_STRING_TO_EXTERNAL (font, patternext, Qfc_font_name_encoding); | |
| 434 fcc = FcConfigGetCurrent (); | |
| 435 | |
| 436 /* parse the name, do the substitutions, and match the font */ | |
| 437 | |
| 438 { | |
| 439 FcPattern *p = FcNameParse ((FcChar8 *) patternext); | |
| 440 PRINT_XFT_PATTERN (3, "FcNameParse'ed name is %s\n", p); | |
| 441 /* #### Next two return FcBool, but what does the return mean? */ | |
| 442 /* The order is correct according the fontconfig docs. */ | |
| 443 FcConfigSubstitute (fcc, p, FcMatchPattern); | |
| 444 PRINT_XFT_PATTERN (2, "FcConfigSubstitute'ed name is %s\n", p); | |
| 445 FcDefaultSubstitute (p); | |
| 446 PRINT_XFT_PATTERN (3, "FcDefaultSubstitute'ed name is %s\n", p); | |
| 447 /* #### check fcresult of following match? */ | |
| 448 fontxft = FcFontMatch (fcc, p, &fcresult); | |
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449 switch (fcresult) |
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450 { |
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451 /* case FcResultOutOfMemory: */ |
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452 case FcResultNoMatch: |
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453 case FcResultTypeMismatch: |
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454 case FcResultNoId: |
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455 break; |
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456 case FcResultMatch: |
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457 /* this prints the long fontconfig name */ |
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458 PRINT_XFT_PATTERN (1, "FcFontMatch'ed name is %s\n", fontxft); |
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459 break; |
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460 } |
| 3659 | 461 FcPatternDestroy (p); |
| 462 } | |
| 463 | |
| 464 /* heuristic to give reasonable-length names for debug reports | |
| 465 | |
| 466 I considered #ifdef SUPPORT_FULL_FONTCONFIG_NAME etc but that's | |
| 467 pointless. We're just going to remove this code once the font/ | |
| 468 face refactoring is done, but until then it could be very useful. | |
| 469 */ | |
| 470 { | |
| 471 FcPattern *p = FcFontRenderPrepare (fcc, fontxft, fontxft); | |
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472 Extbyte *name; |
| 3659 | 473 |
| 474 /* full name, including language coverage and repertoire */ | |
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475 name = (Extbyte *) FcNameUnparse (p); |
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476 eicpy_ext (eistr_fullname, |
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477 (name ? name : "NOT FOUND"), |
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478 Qfc_font_name_encoding); |
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479 if (name) free (name); |
| 3659 | 480 |
| 481 /* long name, omitting coverage and repertoire, plus a number | |
| 482 of rarely useful properties */ | |
| 483 FcPatternDel (p, FC_CHARSET); | |
| 484 FcPatternDel (p, FC_LANG); | |
| 3841 | 485 #ifdef FC_WIDTH |
| 3659 | 486 FcPatternDel (p, FC_WIDTH); |
| 3841 | 487 #endif |
| 3659 | 488 FcPatternDel (p, FC_SPACING); |
| 489 FcPatternDel (p, FC_HINTING); | |
| 490 FcPatternDel (p, FC_VERTICAL_LAYOUT); | |
| 491 FcPatternDel (p, FC_AUTOHINT); | |
| 492 FcPatternDel (p, FC_GLOBAL_ADVANCE); | |
| 493 FcPatternDel (p, FC_INDEX); | |
| 494 FcPatternDel (p, FC_SCALE); | |
| 495 FcPatternDel (p, FC_FONTVERSION); | |
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496 name = (Extbyte *) FcNameUnparse (p); |
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497 eicpy_ext (eistr_longname, |
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498 (name ? name : "NOT FOUND"), |
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499 Qfc_font_name_encoding); |
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500 if (name) free (name); |
| 3659 | 501 |
| 502 /* nickname, just family and size, but | |
| 503 "family" names usually have style, slant, and weight */ | |
| 504 FcPatternDel (p, FC_FOUNDRY); | |
| 505 FcPatternDel (p, FC_STYLE); | |
| 506 FcPatternDel (p, FC_SLANT); | |
| 507 FcPatternDel (p, FC_WEIGHT); | |
| 508 FcPatternDel (p, FC_PIXEL_SIZE); | |
| 509 FcPatternDel (p, FC_OUTLINE); | |
| 510 FcPatternDel (p, FC_SCALABLE); | |
| 511 FcPatternDel (p, FC_DPI); | |
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512 name = (Extbyte *) FcNameUnparse (p); |
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513 eicpy_ext (eistr_shortname, |
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514 (name ? name : "NOT FOUND"), |
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515 Qfc_font_name_encoding); |
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516 if (name) free (name); |
| 3659 | 517 |
| 518 FcPatternDestroy (p); | |
| 519 } | |
| 520 | |
| 521 /* The language approach may better in the long run, but we can't use | |
| 522 it based on Mule charsets; fontconfig doesn't provide a way to test | |
| 523 for unions of languages, etc. That will require support from the | |
| 524 text module. | |
| 525 | |
| 526 Optimization: cache the generated FcCharSet in the Mule charset. | |
| 527 Don't forget to destroy it if the Mule charset gets deallocated. */ | |
| 528 | |
| 529 { | |
| 530 /* This block possibly should be a function, but it generates | |
| 531 multiple values. I find the "pass an address to return the | |
| 532 value in" idiom opaque, so prefer a block. */ | |
| 533 struct charset_reporter *cr; | |
| 534 for (cr = charset_table; | |
| 535 cr->charset && !EQ (*(cr->charset), charset); | |
| 536 cr++) | |
| 537 ; | |
| 538 | |
| 539 if (cr->rfc3066) | |
| 540 { | |
| 541 DECLARE_DEBUG_FONTNAME (name); | |
| 542 CHECKING_LANG (0, eidata(name), cr->language); | |
| 543 lang = (FcChar8 *) cr->rfc3066; | |
| 544 } | |
| 545 else if (cr->charset) | |
| 546 { | |
| 547 /* what the hey, build 'em on the fly */ | |
| 548 /* #### in the case of error this could return NULL! */ | |
| 549 fccs = mule_to_fc_charset (charset); | |
| 550 lang = (FcChar8 *) XSTRING_DATA (XSYMBOL | |
| 551 (XCHARSET_NAME (charset))-> name); | |
| 552 } | |
| 553 else | |
| 554 { | |
| 555 /* OK, we fell off the end of the table */ | |
| 556 warn_when_safe_lispobj (intern ("xft"), intern ("alert"), | |
| 557 list2 (build_string ("unchecked charset"), | |
| 558 charset)); | |
| 559 /* default to "en" | |
| 560 #### THIS IS WRONG, WRONG, WRONG!! | |
| 561 It is why we never fall through to XLFD-checking. */ | |
| 562 } | |
| 563 | |
| 564 ASSERT_ASCTEXT_ASCII((Extbyte *) lang); | |
| 565 | |
| 566 if (fccs) | |
| 567 { | |
| 568 /* check for character set coverage */ | |
| 569 int i = 0; | |
| 570 FcCharSet *v; | |
| 571 FcResult r = FcPatternGetCharSet (fontxft, FC_CHARSET, i, &v); | |
| 572 | |
| 573 if (r == FcResultTypeMismatch) | |
| 574 { | |
| 575 DEBUG_XFT0 (0, "Unexpected type return in charset value\n"); | |
| 576 result = Qnil; | |
| 577 } | |
| 578 else if (r == FcResultMatch && FcCharSetIsSubset (fccs, v)) | |
| 579 { | |
| 580 /* The full pattern with the bitmap coverage is massively | |
| 581 unwieldy, but the shorter names are just *wrong*. We | |
| 582 should have the full thing internally as truename, and | |
| 583 filter stuff the client doesn't want to see on output. | |
| 584 Should we just store it into the truename right here? */ | |
| 585 DECLARE_DEBUG_FONTNAME (name); | |
| 586 DEBUG_XFT2 (0, "Xft font %s supports %s\n", | |
| 587 eidata(name), lang); | |
| 588 #ifdef RETURN_LONG_FONTCONFIG_NAMES | |
| 589 result = eimake_string(eistr_fullname); | |
| 590 #else | |
| 591 result = eimake_string(eistr_longname); | |
| 592 #endif | |
| 593 } | |
| 594 else | |
| 595 { | |
| 596 DECLARE_DEBUG_FONTNAME (name); | |
| 597 DEBUG_XFT2 (0, "Xft font %s doesn't support %s\n", | |
| 598 eidata(name), lang); | |
| 599 result = Qnil; | |
| 600 } | |
| 601 | |
| 602 /* clean up */ | |
| 603 FcCharSetDestroy (fccs); | |
| 604 } | |
| 605 else | |
| 606 { | |
| 607 /* check for language coverage */ | |
| 608 int i = 0; | |
| 609 FcValue v; | |
| 610 /* the main event */ | |
| 611 FcResult r = FcPatternGet (fontxft, FC_LANG, i, &v); | |
| 612 | |
| 613 if (r == FcResultMatch) | |
| 614 { | |
| 615 if (v.type != FcTypeLangSet) /* excessive paranoia */ | |
| 616 { | |
| 617 ASSERT_ASCTEXT_ASCII(FcTypeOfValueToString(v)); | |
| 618 /* Urk! Fall back and punt to core font. */ | |
| 619 DEBUG_XFT1 (0, "Unexpected type of lang value (%s)\n", | |
| 620 FcTypeOfValueToString (v)); | |
| 621 result = Qnil; | |
| 622 } | |
| 623 else if (FcLangSetHasLang (v.u.l, lang) != FcLangDifferentLang) | |
| 624 { | |
| 625 DECLARE_DEBUG_FONTNAME (name); | |
| 626 DEBUG_XFT2 (0, "Xft font %s supports %s\n", | |
| 627 eidata(name), lang); | |
| 628 #ifdef RETURN_LONG_FONTCONFIG_NAMES | |
| 629 result = eimake_string(eistr_fullname); | |
| 630 #else | |
| 631 result = eimake_string(eistr_longname); | |
| 632 #endif | |
| 633 } | |
| 634 else | |
| 635 { | |
| 636 DECLARE_DEBUG_FONTNAME (name); | |
| 637 DEBUG_XFT2 (0, "Xft font %s doesn't support %s\n", | |
| 638 eidata(name), lang); | |
| 639 result = Qnil; | |
| 640 } | |
| 641 } | |
| 642 else | |
| 643 { | |
| 644 ASSERT_ASCTEXT_ASCII(FcResultToString(r)); | |
| 645 DEBUG_XFT1 (0, "Getting lang: unexpected result=%s\n", | |
| 646 FcResultToString (r)); | |
| 647 result = Qnil; | |
| 648 } | |
| 649 } | |
| 650 | |
| 651 /* clean up and maybe return */ | |
| 652 FcPatternDestroy (fontxft); | |
| 653 if (!UNBOUNDP (result)) | |
| 654 return result; | |
| 655 } | |
| 656 } | |
| 657 return Qnil; | |
| 658 } | |
| 659 #undef DECLARE_DEBUG_FONTNAME | |
| 660 | |
| 661 #endif /* USE_XFT */ | |
| 662 | |
| 663 /* find a font spec that matches font spec FONT and also matches | |
| 664 (the registry of) CHARSET. */ | |
| 665 static Lisp_Object | |
| 666 #ifdef THIS_IS_GTK | |
| 667 gtk_find_charset_font (Lisp_Object device, Lisp_Object font, | |
| 668 Lisp_Object charset, | |
| 669 enum font_specifier_matchspec_stages stage) | |
| 670 #else | |
| 671 x_find_charset_font (Lisp_Object device, Lisp_Object font, Lisp_Object charset, | |
| 672 enum font_specifier_matchspec_stages stage) | |
| 673 #endif | |
| 674 { | |
| 675 Lisp_Object result = Qnil, registries = Qnil; | |
| 676 int j, hyphen_count, registries_len = 0; | |
| 677 Ibyte *hyphening, *new_hyphening; | |
| 678 Bytecount xlfd_length; | |
| 679 | |
| 680 DECLARE_EISTRING(ei_xlfd_without_registry); | |
| 681 DECLARE_EISTRING(ei_xlfd); | |
| 682 | |
| 683 #ifdef USE_XFT | |
| 684 result = xft_find_charset_font(font, charset, stage); | |
| 685 if (!NILP(result)) | |
| 686 { | |
| 687 return result; | |
| 688 } | |
| 689 #endif | |
| 690 | |
| 691 switch (stage) | |
| 692 { | |
| 693 case initial: | |
| 694 { | |
| 695 if (!(NILP(XCHARSET_REGISTRIES(charset))) | |
| 696 && VECTORP(XCHARSET_REGISTRIES(charset))) | |
| 697 { | |
| 698 registries_len = XVECTOR_LENGTH(XCHARSET_REGISTRIES(charset)); | |
| 699 registries = XCHARSET_REGISTRIES(charset); | |
| 700 } | |
| 701 break; | |
| 702 } | |
| 703 case final: | |
| 704 { | |
| 705 registries_len = 1; | |
| 706 registries = Qunicode_registries; | |
| 707 break; | |
| 708 } | |
| 709 default: | |
| 710 { | |
| 711 assert(0); | |
| 712 break; | |
| 713 } | |
| 714 } | |
| 715 | |
| 716 eicpy_lstr(ei_xlfd, font); | |
| 717 hyphening = eidata(ei_xlfd); | |
| 718 xlfd_length = eilen(ei_xlfd); | |
| 719 | |
| 720 /* Count the hyphens in the string, moving new_hyphening to just after the | |
| 721 last one. */ | |
| 722 hyphen_count = count_hyphens(hyphening, xlfd_length, &new_hyphening); | |
| 723 | |
| 724 if (0 == registries_len || (5 > hyphen_count && | |
| 725 !(1 == xlfd_length && '*' == *hyphening))) | |
| 726 { | |
| 727 /* No proper XLFD specified, or we can't modify the pattern to change | |
| 728 the registry and encoding to match what we want, or we have no | |
| 729 information on the registry needed. */ | |
| 730 eito_external(ei_xlfd, Qx_font_name_encoding); | |
| 731 DEBUG_OBJECTS ("about to xlistfonts_checking_charset, XLFD %s\n", | |
| 732 eidata(ei_xlfd)); | |
| 733 result = xlistfonts_checking_charset (device, eiextdata(ei_xlfd), | |
| 734 charset, stage); | |
| 735 /* No need to loop through the available registries; return | |
| 736 immediately. */ | |
| 737 return result; | |
| 738 } | |
| 739 else if (1 == xlfd_length && '*' == *hyphening) | |
| 740 { | |
| 741 /* It's a single asterisk. We can add the registry directly to the | |
| 742 end. */ | |
| 743 eicpy_ch(ei_xlfd_without_registry, '*'); | |
| 744 } | |
| 745 else | |
| 746 { | |
| 747 /* It's a fully-specified XLFD. Work out where the registry and | |
| 748 encoding are, and initialise ei_xlfd_without_registry to the string | |
| 749 without them. */ | |
| 750 | |
| 751 /* count_hyphens has set new_hyphening to just after the last | |
| 752 hyphen. Move back to just after the hyphen before it. */ | |
| 753 | |
| 754 for (new_hyphening -= 2; new_hyphening > hyphening | |
| 755 && '-' != *new_hyphening; --new_hyphening) | |
| 756 ; | |
| 757 ++new_hyphening; | |
| 758 | |
| 759 eicpy_ei(ei_xlfd_without_registry, ei_xlfd); | |
| 760 | |
| 761 /* Manipulate ei_xlfd_without_registry, using the information about | |
| 762 ei_xlfd, to which it's identical. */ | |
| 763 eidel(ei_xlfd_without_registry, new_hyphening - hyphening, -1, | |
| 764 eilen(ei_xlfd) - (new_hyphening - hyphening), -1); | |
| 765 | |
| 766 } | |
| 767 | |
| 768 /* Now, loop through the registries and encodings defined for this | |
| 769 charset, doing an XListFonts each time with the pattern modified to | |
| 770 specify the regisry and encoding. This avoids huge amounts of IPC and | |
| 771 duplicated searching; now we use the searching the X server was doing | |
| 772 anyway, where before the X server did its search, transferred huge | |
| 773 amounts of data, and then we proceeded to do a regexp search on that | |
| 774 data. */ | |
| 775 for (j = 0; j < registries_len && NILP(result); ++j) | |
| 776 { | |
| 777 eireset(ei_xlfd); | |
| 778 eicpy_ei(ei_xlfd, ei_xlfd_without_registry); | |
| 779 | |
| 780 eicat_lstr(ei_xlfd, XVECTOR_DATA(registries)[j]); | |
| 781 | |
| 782 eito_external(ei_xlfd, Qx_font_name_encoding); | |
| 783 | |
| 784 DEBUG_OBJECTS ("about to xlistfonts_checking_charset, XLFD %s\n", | |
| 785 eidata(ei_xlfd)); | |
| 786 result = xlistfonts_checking_charset (device, eiextdata(ei_xlfd), | |
| 787 charset, stage); | |
| 788 } | |
| 789 | |
| 3676 | 790 /* In the event that the charset is ASCII and we haven't matched |
| 791 anything up to now, even with a pattern of "*", add "iso8859-1" | |
| 792 to the charset's registry and try again. Not returning a result | |
| 793 for ASCII means our frame geometry calculations are | |
| 794 inconsistent, and that we may crash. */ | |
| 795 | |
| 796 if (1 == xlfd_length && EQ(charset, Vcharset_ascii) && NILP(result) | |
| 797 && ('*' == eigetch(ei_xlfd_without_registry, 0))) | |
| 798 | |
| 799 { | |
| 800 int have_latin1 = 0; | |
| 801 | |
| 802 /* Set this to, for example, is08859-1 if you want to see the | |
| 803 error behaviour. */ | |
| 804 | |
| 805 #define FALLBACK_ASCII_REGISTRY "iso8859-1" | |
| 806 | |
| 807 for (j = 0; j < registries_len; ++j) | |
| 808 { | |
| 809 if (0 == qxestrcasecmp(XSTRING_DATA(XVECTOR_DATA(registries)[j]), | |
| 4124 | 810 (Ibyte *) FALLBACK_ASCII_REGISTRY)) |
| 3676 | 811 { |
| 812 have_latin1 = 1; | |
| 813 break; | |
| 814 } | |
| 815 } | |
| 816 | |
| 817 if (!have_latin1) | |
| 818 { | |
| 819 Lisp_Object new_registries = make_vector(registries_len + 1, Qnil); | |
| 820 | |
| 821 XVECTOR_DATA(new_registries)[0] | |
| 822 = build_string(FALLBACK_ASCII_REGISTRY); | |
| 823 | |
| 824 memcpy(XVECTOR_DATA(new_registries) + 1, | |
| 825 XVECTOR_DATA(registries), | |
| 826 sizeof XVECTOR_DATA(registries)[0] * | |
| 827 XVECTOR_LENGTH(registries)); | |
| 828 | |
| 829 /* Calling set_charset_registries instead of overwriting the | |
| 830 value directly, to allow the charset font caches to be | |
| 831 invalidated and a change to the default face to be | |
| 832 noted. */ | |
| 833 set_charset_registries(charset, new_registries); | |
| 834 | |
| 3680 | 835 warn_when_safe (Qface, Qwarning, |
| 836 "Your ASCII charset registries contain nothing " | |
| 837 "sensible. Adding `" FALLBACK_ASCII_REGISTRY "'."); | |
| 838 | |
| 3676 | 839 /* And recurse. */ |
| 840 result = | |
| 841 DEVMETH_OR_GIVEN (XDEVICE (device), find_charset_font, | |
| 842 (device, font, charset, stage), | |
| 843 result); | |
| 844 } | |
| 845 else | |
| 846 { | |
| 847 DECLARE_EISTRING (ei_connection_name); | |
| 848 | |
| 849 /* We preserve a copy of the connection name for the error message | |
| 850 after the device is deleted. */ | |
| 851 eicpy_lstr (ei_connection_name, | |
| 852 DEVICE_CONNECTION (XDEVICE(device))); | |
| 853 | |
| 854 stderr_out ("Cannot find a font for ASCII, deleting device on %s\n", | |
| 855 eidata (ei_connection_name)); | |
| 856 | |
| 857 io_error_delete_device (device); | |
| 858 | |
| 859 /* Do a normal warning in the event that we have other, non-X | |
| 860 frames available. (If we don't, io_error_delete_device will | |
| 861 have exited.) */ | |
| 862 warn_when_safe | |
| 863 (Qface, Qerror, | |
| 864 "Cannot find a font for ASCII, deleting device on %s.\n" | |
| 865 "\n" | |
| 866 "Your X server fonts appear to be inconsistent; fix them, or\n" | |
| 867 "the next frame you create on that DISPLAY will crash this\n" | |
| 868 "XEmacs. At a minimum, provide one font with an XLFD ending\n" | |
| 869 "in `" FALLBACK_ASCII_REGISTRY "', so we can work out what size\n" | |
| 870 "a frame should be. ", | |
| 871 eidata (ei_connection_name)); | |
| 872 } | |
| 873 | |
| 874 } | |
| 875 | |
| 3659 | 876 /* This function used to return the font spec, in the case where a font |
| 877 didn't exist on the X server but it did match the charset. We're not | |
| 878 doing that any more, because none of the other platform code does, and | |
| 879 the old behaviour was badly-judged in other respects, so I don't trust | |
| 880 the original author to have had a good reason for it. */ | |
| 881 | |
| 882 return result; | |
| 883 } | |
| 884 | |
| 885 #endif /* MULE */ |