2 * $XFree86: xc/lib/fontconfig/src/fccfg.c,v 1.21 2002/08/22 07:36:44 keithp Exp $
4 * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of Keith Packard not be used in
11 * advertising or publicity pertaining to distribution of the software without
12 * specific, written prior permission. Keith Packard makes no
13 * representations about the suitability of this software for any purpose. It
14 * is provided "as is" without express or implied warranty.
16 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
17 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
18 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
19 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
22 * PERFORMANCE OF THIS SOFTWARE.
35 config = malloc (sizeof (FcConfig));
38 FcMemAlloc (FC_MEM_CONFIG, sizeof (FcConfig));
40 config->configDirs = FcStrSetCreate ();
41 if (!config->configDirs)
44 config->configFiles = FcStrSetCreate ();
45 if (!config->configFiles)
48 config->fontDirs = FcStrSetCreate ();
49 if (!config->fontDirs)
53 if (!FcConfigSetCache (config, (FcChar8 *) ("~/" FC_USER_CACHE_FILE)))
58 config->substPattern = 0;
59 config->substFont = 0;
60 config->maxObjects = 0;
61 for (set = FcSetSystem; set <= FcSetApplication; set++)
62 config->fonts[set] = 0;
64 config->rescanTime = time(0);
65 config->rescanInterval = 30;
70 FcStrSetDestroy (config->fontDirs);
72 FcStrSetDestroy (config->configFiles);
74 FcStrSetDestroy (config->configDirs);
77 FcMemFree (FC_MEM_CONFIG, sizeof (FcConfig));
82 typedef struct _FcFileTime {
88 FcConfigNewestFile (FcStrSet *files)
90 FcStrList *list = FcStrListCreate (files);
91 FcFileTime newest = { 0, FcFalse };
97 while ((file = FcStrListNext (list)))
98 if (stat ((char *) file, &statb) == 0)
99 if (!newest.set || statb.st_mtime - newest.time > 0)
100 newest.time = statb.st_mtime;
101 FcStrListDone (list);
107 FcConfigUptoDate (FcConfig *config)
109 FcFileTime config_time, font_time;
110 time_t now = time(0);
113 config = FcConfigGetCurrent ();
117 config_time = FcConfigNewestFile (config->configFiles);
118 font_time = FcConfigNewestFile (config->configDirs);
119 if ((config_time.set && config_time.time - config->rescanTime > 0) ||
120 (font_time.set && font_time.time - config->rescanTime) > 0)
124 config->rescanTime = now;
129 FcSubstDestroy (FcSubst *s)
136 FcTestDestroy (s->test);
137 FcEditDestroy (s->edit);
143 FcConfigDestroy (FcConfig *config)
147 if (config == _fcConfig)
150 FcStrSetDestroy (config->configDirs);
151 FcStrSetDestroy (config->fontDirs);
152 FcStrSetDestroy (config->configFiles);
154 FcStrFree (config->cache);
156 FcSubstDestroy (config->substPattern);
157 FcSubstDestroy (config->substFont);
158 for (set = FcSetSystem; set <= FcSetApplication; set++)
159 if (config->fonts[set])
160 FcFontSetDestroy (config->fonts[set]);
162 FcMemFree (FC_MEM_CONFIG, sizeof (FcConfig));
166 * Scan the current list of directories in the configuration
167 * and build the set of available fonts. Update the
168 * per-user cache file to reflect the new configuration
172 FcConfigBuildFonts (FcConfig *config)
175 FcGlobalCache *cache;
179 fonts = FcFontSetCreate ();
183 cache = FcGlobalCacheCreate ();
187 FcGlobalCacheLoad (cache, config->cache);
189 list = FcConfigGetFontDirs (config);
193 while ((dir = FcStrListNext (list)))
195 if (FcDebug () & FC_DBG_FONTSET)
196 printf ("scan dir %s\n", dir);
197 FcDirScan (fonts, config->fontDirs, cache, config->blanks, dir, FcFalse);
200 FcStrListDone (list);
202 if (FcDebug () & FC_DBG_FONTSET)
203 FcFontSetPrint (fonts);
205 FcGlobalCacheSave (cache, config->cache);
206 FcGlobalCacheDestroy (cache);
208 FcConfigSetFonts (config, fonts, FcSetSystem);
212 FcFontSetDestroy (fonts);
218 FcConfigSetCurrent (FcConfig *config)
221 if (!FcConfigBuildFonts (config))
225 FcConfigDestroy (_fcConfig);
231 FcConfigGetCurrent (void)
240 FcConfigAddConfigDir (FcConfig *config,
243 return FcStrSetAddFilename (config->configDirs, d);
247 FcConfigGetConfigDirs (FcConfig *config)
251 config = FcConfigGetCurrent ();
255 return FcStrListCreate (config->configDirs);
259 FcConfigAddFontDir (FcConfig *config,
262 return FcStrSetAddFilename (config->fontDirs, d);
266 FcConfigAddDir (FcConfig *config,
269 return (FcConfigAddConfigDir (config, d) &&
270 FcConfigAddFontDir (config, d));
274 FcConfigGetFontDirs (FcConfig *config)
278 config = FcConfigGetCurrent ();
282 return FcStrListCreate (config->fontDirs);
286 FcConfigAddConfigFile (FcConfig *config,
290 FcChar8 *file = FcConfigFilename (f);
295 ret = FcStrSetAdd (config->configFiles, file);
301 FcConfigGetConfigFiles (FcConfig *config)
305 config = FcConfigGetCurrent ();
309 return FcStrListCreate (config->configFiles);
313 FcConfigSetCache (FcConfig *config,
316 FcChar8 *new = FcStrCopyFilename (c);
321 FcStrFree (config->cache);
327 FcConfigGetCache (FcConfig *config)
331 config = FcConfigGetCurrent ();
335 return config->cache;
339 FcConfigGetFonts (FcConfig *config,
344 config = FcConfigGetCurrent ();
348 return config->fonts[set];
352 FcConfigSetFonts (FcConfig *config,
356 if (config->fonts[set])
357 FcFontSetDestroy (config->fonts[set]);
358 config->fonts[set] = fonts;
364 FcConfigGetBlanks (FcConfig *config)
368 config = FcConfigGetCurrent ();
372 return config->blanks;
376 FcConfigAddBlank (FcConfig *config,
384 b = FcBlanksCreate ();
388 if (!FcBlanksAdd (b, blank))
395 FcConfigGetRescanInverval (FcConfig *config)
399 config = FcConfigGetCurrent ();
403 return config->rescanInterval;
407 FcConfigSetRescanInverval (FcConfig *config, int rescanInterval)
411 config = FcConfigGetCurrent ();
415 config->rescanInterval = rescanInterval;
420 FcConfigAddEdit (FcConfig *config,
425 FcSubst *subst, **prev;
429 subst = (FcSubst *) malloc (sizeof (FcSubst));
432 if (kind == FcMatchPattern)
433 prev = &config->substPattern;
435 prev = &config->substFont;
436 for (; *prev; prev = &(*prev)->next);
442 for (t = test; t; t = t->next)
444 if (t->kind == FcMatchDefault)
448 if (config->maxObjects < num)
449 config->maxObjects = num;
450 if (FcDebug () & FC_DBG_EDIT)
452 printf ("Add Subst ");
453 FcSubstPrint (subst);
458 typedef struct _FcSubState {
464 FcConfigPromote (FcValue v, FcValue u)
466 if (v.type == FcTypeInteger)
468 v.type = FcTypeDouble;
469 v.u.d = (double) v.u.i;
471 else if (v.type == FcTypeVoid && u.type == FcTypeMatrix)
473 v.u.m = &FcIdentityMatrix;
474 v.type = FcTypeMatrix;
476 else if (v.type == FcTypeString && u.type == FcTypeLangSet)
478 v.u.l = FcLangSetPromote (v.u.s);
479 v.type = FcTypeLangSet;
485 FcConfigCompareValue (FcValue m,
489 FcBool ret = FcFalse;
491 m = FcConfigPromote (m, v);
492 v = FcConfigPromote (v, m);
493 if (m.type == v.type)
497 break; /* FcConfigPromote prevents this from happening */
502 ret = m.u.d == v.u.d;
505 case FcOpNotContains:
506 ret = m.u.d != v.u.d;
512 ret = m.u.d <= v.u.d;
518 ret = m.u.d >= v.u.d;
528 ret = m.u.b == v.u.b;
531 case FcOpNotContains:
532 ret = m.u.b != v.u.b;
542 ret = FcStrCmpIgnoreCase (m.u.s, v.u.s) == 0;
545 case FcOpNotContains:
546 ret = FcStrCmpIgnoreCase (m.u.s, v.u.s) != 0;
556 ret = FcMatrixEqual (m.u.m, v.u.m);
559 case FcOpNotContains:
560 ret = !FcMatrixEqual (m.u.m, v.u.m);
569 /* m contains v if v is a subset of m */
570 ret = FcCharSetIsSubset (v.u.c, m.u.c);
572 case FcOpNotContains:
573 /* m contains v if v is a subset of m */
574 ret = !FcCharSetIsSubset (v.u.c, m.u.c);
577 ret = FcCharSetEqual (m.u.c, v.u.c);
580 ret = !FcCharSetEqual (m.u.c, v.u.c);
589 ret = FcLangSetCompare (v.u.l, m.u.l) != FcLangDifferentLang;
591 case FcOpNotContains:
592 ret = FcLangSetCompare (v.u.l, m.u.l) == FcLangDifferentLang;
595 ret = FcLangSetEqual (v.u.l, m.u.l);
598 ret = !FcLangSetEqual (v.u.l, m.u.l);
618 ret = m.u.f == v.u.f;
621 case FcOpNotContains:
622 ret = m.u.f != v.u.f;
632 if (op == FcOpNotEqual || op == FcOpNotContains)
640 FcConfigEvaluate (FcPattern *p, FcExpr *e)
648 v.type = FcTypeInteger;
652 v.type = FcTypeDouble;
656 v.type = FcTypeString;
661 v.type = FcTypeMatrix;
666 v.type = FcTypeCharSet;
675 r = FcPatternGet (p, e->u.field, 0, &v);
676 if (r != FcResultMatch)
680 if (FcNameConstant (e->u.constant, &v.u.i))
681 v.type = FcTypeInteger;
686 vl = FcConfigEvaluate (p, e->u.tree.left);
687 if (vl.type == FcTypeBool)
690 v = FcConfigEvaluate (p, e->u.tree.right->u.tree.left);
692 v = FcConfigEvaluate (p, e->u.tree.right->u.tree.right);
705 case FcOpNotContains:
706 vl = FcConfigEvaluate (p, e->u.tree.left);
707 vr = FcConfigEvaluate (p, e->u.tree.right);
709 v.u.b = FcConfigCompareValue (vl, e->op, vr);
719 vl = FcConfigEvaluate (p, e->u.tree.left);
720 vr = FcConfigEvaluate (p, e->u.tree.right);
721 vl = FcConfigPromote (vl, vr);
722 vr = FcConfigPromote (vr, vl);
723 if (vl.type == vr.type)
729 v.type = FcTypeDouble;
730 v.u.d = vl.u.d + vr.u.d;
733 v.type = FcTypeDouble;
734 v.u.d = vl.u.d - vr.u.d;
737 v.type = FcTypeDouble;
738 v.u.d = vl.u.d * vr.u.d;
741 v.type = FcTypeDouble;
742 v.u.d = vl.u.d / vr.u.d;
748 if (v.type == FcTypeDouble &&
749 v.u.d == (double) (int) v.u.d)
751 v.type = FcTypeInteger;
759 v.u.b = vl.u.b || vr.u.b;
763 v.u.b = vl.u.b && vr.u.b;
773 v.type = FcTypeString;
774 v.u.s = FcStrPlus (vl.u.s, vr.u.s);
786 v.type = FcTypeMatrix;
787 m = malloc (sizeof (FcMatrix));
790 FcMemAlloc (FC_MEM_MATRIX, sizeof (FcMatrix));
791 FcMatrixMultiply (m, vl.u.m, vr.u.m);
815 vl = FcConfigEvaluate (p, e->u.tree.left);
835 FcConfigMatchValueList (FcPattern *p,
839 FcValueList *ret = 0;
846 if (e->op == FcOpComma)
848 value = FcConfigEvaluate (p, e->u.tree.left);
853 value = FcConfigEvaluate (p, e);
857 for (v = values; v; v = v->next)
859 if (FcConfigCompareValue (v->value, t->op, value))
866 if (t->qual == FcQualAll)
873 FcValueDestroy (value);
879 FcConfigValues (FcPattern *p, FcExpr *e, FcValueBinding binding)
885 l = (FcValueList *) malloc (sizeof (FcValueList));
888 FcMemAlloc (FC_MEM_VALLIST, sizeof (FcValueList));
889 if (e->op == FcOpComma)
891 l->value = FcConfigEvaluate (p, e->u.tree.left);
892 l->next = FcConfigValues (p, e->u.tree.right, binding);
896 l->value = FcConfigEvaluate (p, e);
899 l->binding = binding;
900 while (l && l->value.type == FcTypeVoid)
902 FcValueList *next = l->next;
904 FcMemFree (FC_MEM_VALLIST, sizeof (FcValueList));
912 FcConfigAdd (FcValueList **head,
913 FcValueList *position,
917 FcValueList **prev, *last;
922 prev = &position->next;
924 for (prev = head; *prev; prev = &(*prev)->next)
931 for (prev = head; *prev; prev = &(*prev)->next)
933 if (*prev == position)
940 if (FcDebug () & FC_DBG_EDIT)
943 printf ("position not on list\n");
947 if (FcDebug () & FC_DBG_EDIT)
949 printf ("%s list before ", append ? "Append" : "Prepend");
950 FcValueListPrint (*head);
964 if (FcDebug () & FC_DBG_EDIT)
966 printf ("%s list after ", append ? "Append" : "Prepend");
967 FcValueListPrint (*head);
975 FcConfigDel (FcValueList **head,
976 FcValueList *position)
980 for (prev = head; *prev; prev = &(*prev)->next)
982 if (*prev == position)
984 *prev = position->next;
986 FcValueListDestroy (position);
993 FcConfigPatternAdd (FcPattern *p,
1000 FcPatternElt *e = FcPatternInsertElt (p, object);
1004 FcConfigAdd (&e->values, 0, append, list);
1009 * Delete all values associated with a field
1012 FcConfigPatternDel (FcPattern *p,
1015 FcPatternElt *e = FcPatternFindElt (p, object);
1019 FcConfigDel (&e->values, e->values);
1023 FcConfigPatternCanon (FcPattern *p,
1026 FcPatternElt *e = FcPatternFindElt (p, object);
1030 FcPatternDel (p, object);
1034 FcConfigSubstituteWithPat (FcConfig *config,
1049 config = FcConfigGetCurrent ();
1054 st = (FcSubState *) malloc (config->maxObjects * sizeof (FcSubState));
1055 if (!st && config->maxObjects)
1057 FcMemAlloc (FC_MEM_SUBSTATE, config->maxObjects * sizeof (FcSubState));
1059 if (FcDebug () & FC_DBG_EDIT)
1061 printf ("FcConfigSubstitute ");
1064 if (kind == FcMatchPattern)
1065 s = config->substPattern;
1067 s = config->substFont;
1068 for (; s; s = s->next)
1071 * Check the tests to see if
1072 * they all match the pattern
1074 for (t = s->test, i = 0; t; t = t->next, i++)
1076 if (FcDebug () & FC_DBG_EDIT)
1078 printf ("FcConfigSubstitute test ");
1082 if (kind == FcMatchFont && t->kind == FcMatchPattern)
1087 st[i].elt = FcPatternFindElt (m, t->field);
1091 * If there's no such field in the font,
1092 * then FcQualAll matches while FcQualAny does not
1096 if (t->qual == FcQualAll)
1105 * Check to see if there is a match, mark the location
1106 * to apply match-relative edits
1108 st[i].value = FcConfigMatchValueList (m, t, st[i].elt->values);
1111 if (t->qual == FcQualFirst && st[i].value != st[i].elt->values)
1113 if (t->qual == FcQualNotFirst && st[i].value == st[i].elt->values)
1118 if (FcDebug () & FC_DBG_EDIT)
1119 printf ("No match\n");
1122 if (FcDebug () & FC_DBG_EDIT)
1124 printf ("Substitute ");
1127 for (e = s->edit; e; e = e->next)
1130 * Evaluate the list of expressions
1132 l = FcConfigValues (p, e->expr, e->binding);
1134 * Locate any test associated with this field, skipping
1135 * tests associated with the pattern when substituting in
1138 for (t = s->test, i = 0; t; t = t->next, i++)
1140 if ((t->kind == FcMatchFont || kind == FcMatchPattern) &&
1141 !FcStrCmpIgnoreCase ((FcChar8 *) t->field,
1142 (FcChar8 *) e->field))
1148 * If there was a test, then replace the matched
1149 * value with the new list of values
1153 FcValueList *thisValue = st[i].value;
1154 FcValueList *nextValue = thisValue ? thisValue->next : 0;
1157 * Append the new list of values after the current value
1159 FcConfigAdd (&st[i].elt->values, thisValue, FcTrue, l);
1161 * Delete the marked value
1163 FcConfigDel (&st[i].elt->values, thisValue);
1165 * Adjust any pointers into the value list to ensure
1166 * future edits occur at the same place
1168 for (t = s->test, i = 0; t; t = t->next, i++)
1170 if (st[i].value == thisValue)
1171 st[i].value = nextValue;
1175 /* fall through ... */
1176 case FcOpAssignReplace:
1178 * Delete all of the values and insert
1181 FcConfigPatternDel (p, e->field);
1182 FcConfigPatternAdd (p, e->field, l, FcTrue);
1184 * Adjust any pointers into the value list as they no
1185 * longer point to anything valid
1189 FcPatternElt *thisElt = st[i].elt;
1190 for (t = s->test, i = 0; t; t = t->next, i++)
1192 if (st[i].elt == thisElt)
1200 FcConfigAdd (&st[i].elt->values, st[i].value, FcFalse, l);
1203 /* fall through ... */
1204 case FcOpPrependFirst:
1205 FcConfigPatternAdd (p, e->field, l, FcFalse);
1210 FcConfigAdd (&st[i].elt->values, st[i].value, FcTrue, l);
1213 /* fall through ... */
1214 case FcOpAppendLast:
1215 FcConfigPatternAdd (p, e->field, l, FcTrue);
1222 * Now go through the pattern and eliminate
1223 * any properties without data
1225 for (e = s->edit; e; e = e->next)
1226 FcConfigPatternCanon (p, e->field);
1228 if (FcDebug () & FC_DBG_EDIT)
1230 printf ("FcConfigSubstitute edit");
1234 FcMemFree (FC_MEM_SUBSTATE, config->maxObjects * sizeof (FcSubState));
1236 if (FcDebug () & FC_DBG_EDIT)
1238 printf ("FcConfigSubstitute done");
1245 FcConfigSubstitute (FcConfig *config,
1249 return FcConfigSubstituteWithPat (config, p, 0, kind);
1252 #ifndef FONTCONFIG_PATH
1253 #define FONTCONFIG_PATH "/etc/fonts"
1256 #ifndef FONTCONFIG_FILE
1257 #define FONTCONFIG_FILE "fonts.conf"
1261 FcConfigFileExists (const FcChar8 *dir, const FcChar8 *file)
1266 dir = (FcChar8 *) "";
1267 path = malloc (strlen ((char *) dir) + 1 + strlen ((char *) file) + 1);
1271 strcpy ((char *) path, (const char *) dir);
1272 /* make sure there's a single separating / */
1273 if ((!path[0] || path[strlen((char *) path)-1] != '/') && file[0] != '/')
1274 strcat ((char *) path, "/");
1275 strcat ((char *) path, (char *) file);
1277 if (access ((char *) path, R_OK) == 0)
1285 FcConfigGetPath (void)
1288 FcChar8 *env, *e, *colon;
1293 npath = 2; /* default dir + null */
1294 env = (FcChar8 *) getenv ("FONTCONFIG_PATH");
1303 path = calloc (npath, sizeof (FcChar8 *));
1313 colon = (FcChar8 *) strchr ((char *) e, ':');
1315 colon = e + strlen ((char *) e);
1316 path[i] = malloc (colon - e + 1);
1319 strncpy ((char *) path[i], (const char *) e, colon - e);
1320 path[i][colon - e] = '\0';
1329 dir = (FcChar8 *) FONTCONFIG_PATH;
1330 path[i] = malloc (strlen ((char *) dir) + 1);
1333 strcpy ((char *) path[i], (const char *) dir);
1337 for (i = 0; path[i]; i++)
1345 FcConfigFreePath (FcChar8 **path)
1349 for (p = path; *p; p++)
1355 FcConfigFilename (const FcChar8 *url)
1357 FcChar8 *file, *dir, **path, **p;
1361 url = (FcChar8 *) getenv ("FONTCONFIG_FILE");
1363 url = (FcChar8 *) FONTCONFIG_FILE;
1368 dir = (FcChar8 *) getenv ("HOME");
1370 file = FcConfigFileExists (dir, url + 1);
1375 file = FcConfigFileExists (0, url);
1378 path = FcConfigGetPath ();
1381 for (p = path; *p; p++)
1383 file = FcConfigFileExists (*p, url);
1387 FcConfigFreePath (path);
1394 * Manage the application-specific fonts
1398 FcConfigAppFontAddFile (FcConfig *config,
1399 const FcChar8 *file)
1408 config = FcConfigGetCurrent ();
1413 subdirs = FcStrSetCreate ();
1417 set = FcConfigGetFonts (config, FcSetApplication);
1420 set = FcFontSetCreate ();
1423 FcStrSetDestroy (subdirs);
1426 FcConfigSetFonts (config, set, FcSetApplication);
1429 if (!FcFileScan (set, subdirs, 0, config->blanks, file, FcFalse))
1431 FcStrSetDestroy (subdirs);
1434 if ((sublist = FcStrListCreate (subdirs)))
1436 while ((subdir = FcStrListNext (sublist)))
1438 FcConfigAppFontAddDir (config, subdir);
1440 FcStrListDone (sublist);
1446 FcConfigAppFontAddDir (FcConfig *config,
1456 config = FcConfigGetCurrent ();
1460 subdirs = FcStrSetCreate ();
1464 set = FcConfigGetFonts (config, FcSetApplication);
1467 set = FcFontSetCreate ();
1470 FcStrSetDestroy (subdirs);
1473 FcConfigSetFonts (config, set, FcSetApplication);
1476 if (!FcDirScan (set, subdirs, 0, config->blanks, dir, FcFalse))
1478 FcStrSetDestroy (subdirs);
1481 if ((sublist = FcStrListCreate (subdirs)))
1483 while ((subdir = FcStrListNext (sublist)))
1485 FcConfigAppFontAddDir (config, subdir);
1487 FcStrListDone (sublist);
1493 FcConfigAppFontClear (FcConfig *config)
1495 FcConfigSetFonts (config, 0, FcSetApplication);