2 * $XFree86: xc/lib/fontconfig/src/fccfg.c,v 1.5 2002/03/01 01:00:54 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));
83 FcConfigNewestFile (FcStrSet *files)
85 FcStrList *list = FcStrListCreate (files);
93 while ((file = FcStrListNext (list)))
95 if (stat ((char *) file, &statb) == 0)
98 newest = statb.st_mtime;
99 else if (statb.st_mtime - newest > 0)
100 newest = statb.st_mtime;
103 FcStrListDone (list);
109 FcConfigUptoDate (FcConfig *config)
113 time_t now = time(0);
116 config = FcConfigGetCurrent ();
120 config_time = FcConfigNewestFile (config->configFiles);
121 font_time = FcConfigNewestFile (config->configDirs);
122 if (config_time - config->rescanTime > 0 ||
123 font_time - config->rescanTime > 0)
127 config->rescanTime = now;
132 FcSubstDestroy (FcSubst *s)
139 FcTestDestroy (s->test);
140 FcEditDestroy (s->edit);
146 FcConfigDestroy (FcConfig *config)
150 if (config == _fcConfig)
153 FcStrSetDestroy (config->configDirs);
154 FcStrSetDestroy (config->fontDirs);
155 FcStrSetDestroy (config->configFiles);
157 FcStrFree (config->cache);
159 FcSubstDestroy (config->substPattern);
160 FcSubstDestroy (config->substFont);
161 for (set = FcSetSystem; set <= FcSetApplication; set++)
162 if (config->fonts[set])
163 FcFontSetDestroy (config->fonts[set]);
165 FcMemFree (FC_MEM_CONFIG, sizeof (FcConfig));
169 * Scan the current list of directories in the configuration
170 * and build the set of available fonts. Update the
171 * per-user cache file to reflect the new configuration
175 FcConfigBuildFonts (FcConfig *config)
182 fonts = FcFontSetCreate ();
186 cache = FcFileCacheCreate ();
190 FcFileCacheLoad (cache, config->cache);
192 list = FcConfigGetFontDirs (config);
196 while ((dir = FcStrListNext (list)))
198 if (FcDebug () & FC_DBG_FONTSET)
199 printf ("scan dir %s\n", dir);
200 FcDirScan (fonts, config->fontDirs, cache, config->blanks, dir, FcFalse);
203 FcStrListDone (list);
205 if (FcDebug () & FC_DBG_FONTSET)
206 FcFontSetPrint (fonts);
208 FcFileCacheSave (cache, config->cache);
209 FcFileCacheDestroy (cache);
211 FcConfigSetFonts (config, fonts, FcSetSystem);
215 FcFontSetDestroy (fonts);
221 FcConfigSetCurrent (FcConfig *config)
224 if (!FcConfigBuildFonts (config))
228 FcConfigDestroy (_fcConfig);
234 FcConfigGetCurrent (void)
243 FcConfigAddConfigDir (FcConfig *config,
246 return FcStrSetAddFilename (config->configDirs, d);
250 FcConfigGetConfigDirs (FcConfig *config)
254 config = FcConfigGetCurrent ();
258 return FcStrListCreate (config->configDirs);
262 FcConfigAddFontDir (FcConfig *config,
265 return FcStrSetAddFilename (config->fontDirs, d);
269 FcConfigAddDir (FcConfig *config,
272 return (FcConfigAddConfigDir (config, d) &&
273 FcConfigAddFontDir (config, d));
277 FcConfigGetFontDirs (FcConfig *config)
281 config = FcConfigGetCurrent ();
285 return FcStrListCreate (config->fontDirs);
289 FcConfigAddConfigFile (FcConfig *config,
293 FcChar8 *file = FcConfigFilename (f);
298 ret = FcStrSetAdd (config->configFiles, file);
304 FcConfigGetConfigFiles (FcConfig *config)
308 config = FcConfigGetCurrent ();
312 return FcStrListCreate (config->configFiles);
316 FcConfigSetCache (FcConfig *config,
319 FcChar8 *new = FcStrCopyFilename (c);
324 FcStrFree (config->cache);
330 FcConfigGetCache (FcConfig *config)
334 config = FcConfigGetCurrent ();
338 return config->cache;
342 FcConfigGetFonts (FcConfig *config,
347 config = FcConfigGetCurrent ();
351 return config->fonts[set];
355 FcConfigSetFonts (FcConfig *config,
359 if (config->fonts[set])
360 FcFontSetDestroy (config->fonts[set]);
361 config->fonts[set] = fonts;
367 FcConfigGetBlanks (FcConfig *config)
371 config = FcConfigGetCurrent ();
375 return config->blanks;
379 FcConfigAddBlank (FcConfig *config,
387 b = FcBlanksCreate ();
391 if (!FcBlanksAdd (b, blank))
398 FcConfigGetRescanInverval (FcConfig *config)
402 config = FcConfigGetCurrent ();
406 return config->rescanInterval;
410 FcConfigSetRescanInverval (FcConfig *config, int rescanInterval)
414 config = FcConfigGetCurrent ();
418 config->rescanInterval = rescanInterval;
423 FcConfigAddEdit (FcConfig *config,
428 FcSubst *subst, **prev;
432 subst = (FcSubst *) malloc (sizeof (FcSubst));
435 if (kind == FcMatchPattern)
436 prev = &config->substPattern;
438 prev = &config->substFont;
439 for (; *prev; prev = &(*prev)->next);
444 if (FcDebug () & FC_DBG_EDIT)
446 printf ("Add Subst ");
447 FcSubstPrint (subst);
450 for (t = test; t; t = t->next)
452 if (config->maxObjects < num)
453 config->maxObjects = num;
457 typedef struct _FcSubState {
462 static const FcMatrix FcIdentityMatrix = { 1, 0, 0, 1 };
465 FcConfigPromote (FcValue v, FcValue u)
467 if (v.type == FcTypeInteger)
469 v.type = FcTypeDouble;
470 v.u.d = (double) v.u.i;
472 else if (v.type == FcTypeVoid && u.type == FcTypeMatrix)
474 v.u.m = (FcMatrix *) &FcIdentityMatrix;
475 v.type = FcTypeMatrix;
481 FcConfigCompareValue (FcValue m,
485 FcBool ret = FcFalse;
487 m = FcConfigPromote (m, v);
488 v = FcConfigPromote (v, m);
489 if (m.type == v.type)
494 break; /* FcConfigPromote prevents this from happening */
499 ret = m.u.d == v.u.d;
502 ret = m.u.d != v.u.d;
508 ret = m.u.d <= v.u.d;
514 ret = m.u.d >= v.u.d;
524 ret = m.u.b == v.u.b;
527 ret = m.u.b != v.u.b;
537 ret = FcStrCmpIgnoreCase (m.u.s, v.u.s) == 0;
540 ret = FcStrCmpIgnoreCase (m.u.s, v.u.s) != 0;
550 ret = FcMatrixEqual (m.u.m, v.u.m);
553 ret = !FcMatrixEqual (m.u.m, v.u.m);
562 /* m contains v if v - m is empty */
563 ret = FcCharSetSubtractCount (v.u.c, m.u.c) == 0;
566 ret = FcCharSetEqual (m.u.c, v.u.c);
569 ret = !FcCharSetEqual (m.u.c, v.u.c);
589 if (op == FcOpNotEqual)
597 FcConfigEvaluate (FcPattern *p, FcExpr *e)
605 v.type = FcTypeInteger;
609 v.type = FcTypeDouble;
613 v.type = FcTypeString;
618 v.type = FcTypeMatrix;
623 v.type = FcTypeCharSet;
632 r = FcPatternGet (p, e->u.field, 0, &v);
633 if (r != FcResultMatch)
637 if (FcNameConstant (e->u.constant, &v.u.i))
638 v.type = FcTypeInteger;
643 vl = FcConfigEvaluate (p, e->u.tree.left);
644 if (vl.type == FcTypeBool)
647 v = FcConfigEvaluate (p, e->u.tree.right->u.tree.left);
649 v = FcConfigEvaluate (p, e->u.tree.right->u.tree.right);
668 vl = FcConfigEvaluate (p, e->u.tree.left);
669 vr = FcConfigEvaluate (p, e->u.tree.right);
670 vl = FcConfigPromote (vl, vr);
671 vr = FcConfigPromote (vr, vl);
672 if (vl.type == vr.type)
678 v.type = FcTypeDouble;
679 v.u.d = vl.u.d + vr.u.d;
682 v.type = FcTypeDouble;
683 v.u.d = vl.u.d - vr.u.d;
686 v.type = FcTypeDouble;
687 v.u.d = vl.u.d * vr.u.d;
690 v.type = FcTypeDouble;
691 v.u.d = vl.u.d / vr.u.d;
696 v.u.b = vl.u.d == vr.u.d;
700 v.u.b = vl.u.d != vr.u.d;
704 v.u.b = vl.u.d < vr.u.d;
708 v.u.b = vl.u.d <= vr.u.d;
712 v.u.b = vl.u.d > vr.u.d;
716 v.u.b = vl.u.d >= vr.u.d;
722 if (v.type == FcTypeDouble &&
723 v.u.d == (double) (int) v.u.d)
725 v.type = FcTypeInteger;
733 v.u.b = vl.u.b || vr.u.b;
737 v.u.b = vl.u.b && vr.u.b;
742 v.u.b = vl.u.b == vr.u.b;
746 v.u.b = vl.u.b != vr.u.b;
758 v.u.b = FcStrCmpIgnoreCase (vl.u.s, vr.u.s) == 0;
762 v.u.b = FcStrCmpIgnoreCase (vl.u.s, vr.u.s) != 0;
765 v.type = FcTypeString;
766 v.u.s = FcStrPlus (vl.u.s, vr.u.s);
779 v.u.b = FcMatrixEqual (vl.u.m, vr.u.m);
783 v.u.b = FcMatrixEqual (vl.u.m, vr.u.m);
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);
807 /* vl contains vr if vr - vl is empty */
809 v.u.b = FcCharSetSubtractCount (vr.u.c, vl.u.c) == 0;
813 v.u.b = FcCharSetEqual (vl.u.c, vr.u.c);
817 v.u.b = !FcCharSetEqual (vl.u.c, vr.u.c);
835 vl = FcConfigEvaluate (p, e->u.tree.left);
855 FcConfigMatchValueList (FcPattern *p,
859 FcValueList *ret = 0;
865 if (e->op == FcOpComma)
867 value = FcConfigEvaluate (p, e->u.tree.left);
872 value = FcConfigEvaluate (p, e);
876 for (; v; v = v->next)
878 if (FcConfigCompareValue (v->value, t->op, value))
885 if (t->qual == FcQualAll)
893 FcValueDestroy (value);
898 FcConfigValues (FcPattern *p, FcExpr *e)
904 l = (FcValueList *) malloc (sizeof (FcValueList));
907 FcMemAlloc (FC_MEM_VALLIST, sizeof (FcValueList));
908 if (e->op == FcOpComma)
910 l->value = FcConfigEvaluate (p, e->u.tree.left);
911 l->next = FcConfigValues (p, e->u.tree.right);
915 l->value = FcConfigEvaluate (p, e);
918 while (l && l->value.type == FcTypeVoid)
920 FcValueList *next = l->next;
922 FcMemFree (FC_MEM_VALLIST, sizeof (FcValueList));
930 FcConfigAdd (FcValueList **head,
931 FcValueList *position,
935 FcValueList **prev, *last;
940 prev = &position->next;
942 for (prev = head; *prev; prev = &(*prev)->next)
949 for (prev = head; *prev; prev = &(*prev)->next)
951 if (*prev == position)
958 if (FcDebug () & FC_DBG_EDIT)
961 printf ("position not on list\n");
965 if (FcDebug () & FC_DBG_EDIT)
967 printf ("%s list before ", append ? "Append" : "Prepend");
968 FcValueListPrint (*head);
982 if (FcDebug () & FC_DBG_EDIT)
984 printf ("%s list after ", append ? "Append" : "Prepend");
985 FcValueListPrint (*head);
993 FcConfigDel (FcValueList **head,
994 FcValueList *position)
998 for (prev = head; *prev; prev = &(*prev)->next)
1000 if (*prev == position)
1002 *prev = position->next;
1004 FcValueListDestroy (position);
1011 FcConfigPatternAdd (FcPattern *p,
1018 FcPatternElt *e = FcPatternFind (p, object, FcTrue);
1022 FcConfigAdd (&e->values, 0, append, list);
1027 * Delete all values associated with a field
1030 FcConfigPatternDel (FcPattern *p,
1033 FcPatternElt *e = FcPatternFind (p, object, FcFalse);
1037 FcConfigDel (&e->values, e->values);
1041 FcConfigPatternCanon (FcPattern *p,
1044 FcPatternElt *e = FcPatternFind (p, object, FcFalse);
1048 FcPatternDel (p, object);
1052 FcConfigSubstitute (FcConfig *config,
1065 config = FcConfigGetCurrent ();
1070 st = (FcSubState *) malloc (config->maxObjects * sizeof (FcSubState));
1071 if (!st && config->maxObjects)
1073 FcMemAlloc (FC_MEM_SUBSTATE, config->maxObjects * sizeof (FcSubState));
1075 if (FcDebug () & FC_DBG_EDIT)
1077 printf ("FcConfigSubstitute ");
1080 if (kind == FcMatchPattern)
1081 s = config->substPattern;
1083 s = config->substFont;
1084 for (; s; s = s->next)
1087 * Check the tests to see if
1088 * they all match the pattern
1090 for (t = s->test, i = 0; t; t = t->next, i++)
1092 if (FcDebug () & FC_DBG_EDIT)
1094 printf ("FcConfigSubstitute test ");
1097 st[i].elt = FcPatternFind (p, t->field, FcFalse);
1099 * If there's no such field in the font,
1100 * then FcQualAll matches while FcQualAny does not
1104 if (t->qual == FcQualAll)
1113 * Check to see if there is a match, mark the location
1114 * to apply match-relative edits
1116 st[i].value = FcConfigMatchValueList (p, t, st[i].elt->values);
1122 if (FcDebug () & FC_DBG_EDIT)
1123 printf ("No match\n");
1126 if (FcDebug () & FC_DBG_EDIT)
1128 printf ("Substitute ");
1131 for (e = s->edit; e; e = e->next)
1134 * Evaluate the list of expressions
1136 l = FcConfigValues (p, e->expr);
1138 * Locate any test associated with this field
1140 for (t = s->test, i = 0; t; t = t->next, i++)
1141 if (!FcStrCmpIgnoreCase ((FcChar8 *) t->field, (FcChar8 *) e->field))
1146 * If there was a test, then replace the matched
1147 * value with the new list of values
1151 FcValueList *thisValue = st[i].value;
1152 FcValueList *nextValue = thisValue ? thisValue->next : 0;
1155 * Append the new list of values after the current value
1157 FcConfigAdd (&st[i].elt->values, thisValue, FcTrue, l);
1159 * Delete the marked value
1161 FcConfigDel (&st[i].elt->values, thisValue);
1163 * Adjust any pointers into the value list to ensure
1164 * future edits occur at the same place
1166 for (t = s->test, i = 0; t; t = t->next, i++)
1168 if (st[i].value == thisValue)
1169 st[i].value = nextValue;
1173 /* fall through ... */
1174 case FcOpAssignReplace:
1176 * Delete all of the values and insert
1179 FcConfigPatternDel (p, e->field);
1180 FcConfigPatternAdd (p, e->field, l, FcTrue);
1182 * Adjust any pointers into the value list as they no
1183 * longer point to anything valid
1187 FcPatternElt *thisElt = st[i].elt;
1188 for (t = s->test, i = 0; t; t = t->next, i++)
1190 if (st[i].elt == thisElt)
1198 FcConfigAdd (&st[i].elt->values, st[i].value, FcFalse, l);
1201 /* fall through ... */
1202 case FcOpPrependFirst:
1203 FcConfigPatternAdd (p, e->field, l, FcFalse);
1208 FcConfigAdd (&st[i].elt->values, st[i].value, FcTrue, l);
1211 /* fall through ... */
1212 case FcOpAppendLast:
1213 FcConfigPatternAdd (p, e->field, l, FcTrue);
1220 * Now go through the pattern and eliminate
1221 * any properties without data
1223 for (e = s->edit; e; e = e->next)
1224 FcConfigPatternCanon (p, e->field);
1226 if (FcDebug () & FC_DBG_EDIT)
1228 printf ("FcConfigSubstitute edit");
1232 FcMemFree (FC_MEM_SUBSTATE, config->maxObjects * sizeof (FcSubState));
1234 if (FcDebug () & FC_DBG_EDIT)
1236 printf ("FcConfigSubstitute done");
1242 #ifndef FONTCONFIG_PATH
1243 #define FONTCONFIG_PATH "/etc/fonts"
1246 #ifndef FONTCONFIG_FILE
1247 #define FONTCONFIG_FILE "fonts.conf"
1251 FcConfigFileExists (const FcChar8 *dir, const FcChar8 *file)
1256 dir = (FcChar8 *) "";
1257 path = malloc (strlen ((char *) dir) + 1 + strlen ((char *) file) + 1);
1261 strcpy ((char *) path, (const char *) dir);
1262 /* make sure there's a single separating / */
1263 if ((!path[0] || path[strlen((char *) path)-1] != '/') && file[0] != '/')
1264 strcat ((char *) path, "/");
1265 strcat ((char *) path, (char *) file);
1267 if (access ((char *) path, R_OK) == 0)
1275 FcConfigGetPath (void)
1278 FcChar8 *env, *e, *colon;
1283 npath = 2; /* default dir + null */
1284 env = (FcChar8 *) getenv ("FONTCONFIG_PATH");
1293 path = calloc (npath, sizeof (FcChar8 *));
1303 colon = (FcChar8 *) strchr ((char *) e, ':');
1305 colon = e + strlen ((char *) e);
1306 path[i] = malloc (colon - e + 1);
1309 strncpy ((char *) path[i], (const char *) e, colon - e);
1310 path[i][colon - e] = '\0';
1319 dir = (FcChar8 *) FONTCONFIG_PATH;
1320 path[i] = malloc (strlen ((char *) dir) + 1);
1323 strcpy ((char *) path[i], (const char *) dir);
1327 for (i = 0; path[i]; i++)
1335 FcConfigFreePath (FcChar8 **path)
1339 for (p = path; *p; p++)
1345 FcConfigFilename (const FcChar8 *url)
1347 FcChar8 *file, *dir, **path, **p;
1351 url = (FcChar8 *) getenv ("FONTCONFIG_FILE");
1353 url = (FcChar8 *) FONTCONFIG_FILE;
1358 dir = (FcChar8 *) getenv ("HOME");
1360 file = FcConfigFileExists (dir, url + 1);
1365 file = FcConfigFileExists (0, url);
1368 path = FcConfigGetPath ();
1371 for (p = path; *p; p++)
1373 file = FcConfigFileExists (*p, url);
1377 FcConfigFreePath (path);
1384 * Manage the application-specific fonts
1388 FcConfigAppFontAddFile (FcConfig *config,
1389 const FcChar8 *file)
1398 config = FcConfigGetCurrent ();
1403 subdirs = FcStrSetCreate ();
1407 set = FcConfigGetFonts (config, FcSetApplication);
1410 set = FcFontSetCreate ();
1413 FcStrSetDestroy (subdirs);
1416 FcConfigSetFonts (config, set, FcSetApplication);
1419 if (!FcFileScan (set, subdirs, 0, config->blanks, file, FcFalse))
1421 FcStrSetDestroy (subdirs);
1424 if ((sublist = FcStrListCreate (subdirs)))
1426 while ((subdir = FcStrListNext (sublist)))
1428 FcConfigAppFontAddDir (config, subdir);
1430 FcStrListDone (sublist);
1436 FcConfigAppFontAddDir (FcConfig *config,
1446 config = FcConfigGetCurrent ();
1450 subdirs = FcStrSetCreate ();
1454 set = FcConfigGetFonts (config, FcSetApplication);
1457 set = FcFontSetCreate ();
1460 FcStrSetDestroy (subdirs);
1463 FcConfigSetFonts (config, set, FcSetApplication);
1466 if (!FcDirScan (set, subdirs, 0, config->blanks, dir, FcFalse))
1468 FcStrSetDestroy (subdirs);
1471 if ((sublist = FcStrListCreate (subdirs)))
1473 while ((subdir = FcStrListNext (sublist)))
1475 FcConfigAppFontAddDir (config, subdir);
1477 FcStrListDone (sublist);
1483 FcConfigAppFontClear (FcConfig *config)
1485 FcConfigSetFonts (config, 0, FcSetApplication);