src/fcname.c

   1 /*
   2  * fontconfig/src/fcname.c
   3  *
   4  * Copyright © 2000 Keith Packard
   5  *
   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.
  15  *
  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.
  23  */
  24
  25 #include "fcint.h"
  26 #include <ctype.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <stdio.h>
  30
  31 /*
  32  * Please do not change this list, it is used to initialize the object
  33  * list in this order to match the FC_foo_OBJECT constants. Those
  34  * constants are written into cache files.
  35  */
  36
  37 static const FcObjectType _FcBaseObjectTypes[] = {
  38     { FC_FAMILY,        FcTypeString, },    /* 1 */
  39     { FC_FAMILYLANG,    FcTypeString, },
  40     { FC_STYLE,         FcTypeString, },
  41     { FC_STYLELANG,     FcTypeString, },
  42     { FC_FULLNAME,      FcTypeString, },
  43     { FC_FULLNAMELANG,  FcTypeString, },
  44     { FC_SLANT,         FcTypeInteger, },
  45     { FC_WEIGHT,        FcTypeInteger, },
  46     { FC_WIDTH,         FcTypeInteger, },
  47     { FC_SIZE,          FcTypeDouble, },
  48     { FC_ASPECT,        FcTypeDouble, },
  49     { FC_PIXEL_SIZE,    FcTypeDouble, },
  50     { FC_SPACING,       FcTypeInteger, },
  51     { FC_FOUNDRY,       FcTypeString, },
  52     { FC_ANTIALIAS,     FcTypeBool, },
  53     { FC_HINT_STYLE,    FcTypeInteger, },
  54     { FC_HINTING,       FcTypeBool, },
  55     { FC_VERTICAL_LAYOUT,   FcTypeBool, },
  56     { FC_AUTOHINT,      FcTypeBool, },
  57     { FC_GLOBAL_ADVANCE,    FcTypeBool, },
  58     { FC_FILE,          FcTypeString, },
  59     { FC_INDEX,         FcTypeInteger, },
  60     { FC_RASTERIZER,    FcTypeString, },
  61     { FC_OUTLINE,       FcTypeBool, },
  62     { FC_SCALABLE,      FcTypeBool, },
  63     { FC_DPI,           FcTypeDouble },
  64     { FC_RGBA,          FcTypeInteger, },
  65     { FC_SCALE,         FcTypeDouble, },
  66     { FC_MINSPACE,      FcTypeBool, },
  67     { FC_CHAR_WIDTH,    FcTypeInteger },
  68     { FC_CHAR_HEIGHT,   FcTypeInteger },
  69     { FC_MATRIX,        FcTypeMatrix },
  70     { FC_CHARSET,       FcTypeCharSet },
  71     { FC_LANG,          FcTypeLangSet },
  72     { FC_FONTVERSION,   FcTypeInteger },
  73     { FC_CAPABILITY,    FcTypeString },
  74     { FC_FONTFORMAT,    FcTypeString },
  75     { FC_EMBOLDEN,      FcTypeBool },
  76     { FC_EMBEDDED_BITMAP,   FcTypeBool },
  77     { FC_DECORATIVE,    FcTypeBool },
  78     { FC_LCD_FILTER,    FcTypeInteger }, /* 41 */
  79 };
  80
  81 #define NUM_OBJECT_TYPES    (sizeof _FcBaseObjectTypes / sizeof _FcBaseObjectTypes[0])
  82
  83 typedef struct _FcObjectTypeList    FcObjectTypeList;
  84
  85 struct _FcObjectTypeList {
  86     const FcObjectTypeList  *next;
  87     const FcObjectType      *types;
  88     int                     ntypes;
  89 };
  90
  91 static const FcObjectTypeList _FcBaseObjectTypesList = {
  92     0,
  93     _FcBaseObjectTypes,
  94     NUM_OBJECT_TYPES,
  95 };
  96
  97 static const FcObjectTypeList   *_FcObjectTypes = &_FcBaseObjectTypesList;
  98
  99 #define OBJECT_HASH_SIZE    31
 100
 101 typedef struct _FcObjectBucket {
 102     struct _FcObjectBucket  *next;
 103     FcChar32                hash;
 104     FcObject                id;
 105 } FcObjectBucket;
 106
 107 static FcObjectBucket   *FcObjectBuckets[OBJECT_HASH_SIZE];
 108
 109 static FcObjectType     *FcObjects = (FcObjectType *) _FcBaseObjectTypes;
 110 static int              FcObjectsNumber = NUM_OBJECT_TYPES;
 111 static int              FcObjectsSize = 0;
 112 static FcBool           FcObjectsInited;
 113
 114 static FcObjectType *
 115 FcObjectInsert (const char *name, FcType type)
 116 {
 117     FcObjectType    *o;
 118     if (FcObjectsNumber >= FcObjectsSize)
 119     {
 120         int             newsize = FcObjectsNumber * 2;
 121         FcObjectType    *newobjects;
 122
 123         if (FcObjectsSize)
 124             newobjects = realloc (FcObjects, newsize * sizeof (FcObjectType));
 125         else
 126         {
 127             newobjects = malloc (newsize * sizeof (FcObjectType));
 128             if (newobjects)
 129                 memcpy (newobjects, FcObjects,
 130                         FcObjectsNumber * sizeof (FcObjectType));
 131         }
 132         if (!newobjects)
 133             return NULL;
 134         FcObjects = newobjects;
 135         FcObjectsSize = newsize;
 136     }
 137     o = &FcObjects[FcObjectsNumber];
 138     o->object = name;
 139     o->type = type;
 140     ++FcObjectsNumber;
 141     return o;
 142 }
 143
 144 static FcObject
 145 FcObjectId (FcObjectType *o)
 146 {
 147     return o - FcObjects + 1;
 148 }
 149
 150 static FcObjectType *
 151 FcObjectFindByName (const char *object, FcBool insert)
 152 {
 153     FcChar32        hash = FcStringHash ((const FcChar8 *) object);
 154     FcObjectBucket  **p;
 155     FcObjectBucket  *b;
 156     FcObjectType    *o;
 157
 158     if (!FcObjectsInited)
 159         FcObjectInit ();
 160     for (p = &FcObjectBuckets[hash%OBJECT_HASH_SIZE]; (b = *p); p = &(b->next))
 161     {
 162         o = FcObjects + b->id - 1;
 163         if (b->hash == hash && !strcmp (object, (o->object)))
 164             return o;
 165     }
 166     if (!insert)
 167         return NULL;
 168     /*
 169      * Hook it into the hash chain
 170      */
 171     b = malloc (sizeof(FcObjectBucket));
 172     if (!b)
 173         return NULL;
 174     object = (const char *) FcStrCopy ((FcChar8 *) object);
 175     if (!object) {
 176         free (b);
 177         return NULL;
 178     }
 179     o = FcObjectInsert (object, -1);
 180     b->next = NULL;
 181     b->hash = hash;
 182     b->id = FcObjectId (o);
 183     *p = b;
 184     return o;
 185 }
 186
 187 static FcObjectType *
 188 FcObjectFindById (FcObject object)
 189 {
 190     if (1 <= object && object <= FcObjectsNumber)
 191         return FcObjects + object - 1;
 192     return NULL;
 193 }
 194
 195 static FcBool
 196 FcObjectHashInsert (const FcObjectType *object, FcBool copy)
 197 {
 198     FcChar32        hash = FcStringHash ((const FcChar8 *) object->object);
 199     FcObjectBucket  **p;
 200     FcObjectBucket  *b;
 201     FcObjectType    *o;
 202
 203     if (!FcObjectsInited)
 204         FcObjectInit ();
 205     for (p = &FcObjectBuckets[hash%OBJECT_HASH_SIZE]; (b = *p); p = &(b->next))
 206     {
 207         o = FcObjects + b->id - 1;
 208         if (b->hash == hash && !strcmp (object->object, o->object))
 209             return FcFalse;
 210     }
 211     /*
 212      * Hook it into the hash chain
 213      */
 214     b = malloc (sizeof(FcObjectBucket));
 215     if (!b)
 216         return FcFalse;
 217     if (copy)
 218     {
 219         o = FcObjectInsert (object->object, object->type);
 220         if (!o)
 221         {
 222             free (b);
 223             return FcFalse;
 224         }
 225     }
 226     else
 227         o = (FcObjectType *) object;
 228     b->next = NULL;
 229     b->hash = hash;
 230     b->id = FcObjectId (o);
 231     *p = b;
 232     return FcTrue;
 233 }
 234
 235 static void
 236 FcObjectHashRemove (const FcObjectType *object, FcBool cleanobj)
 237 {
 238     FcChar32        hash = FcStringHash ((const FcChar8 *) object->object);
 239     FcObjectBucket  **p;
 240     FcObjectBucket  *b;
 241     FcObjectType    *o;
 242
 243     if (!FcObjectsInited)
 244         FcObjectInit ();
 245     for (p = &FcObjectBuckets[hash%OBJECT_HASH_SIZE]; (b = *p); p = &(b->next))
 246     {
 247         o = FcObjects + b->id - 1;
 248         if (b->hash == hash && !strcmp (object->object, o->object))
 249         {
 250             *p = b->next;
 251             free (b);
 252             if (cleanobj)
 253             {
 254                 /* Clean up object array */
 255                 o->object = NULL;
 256                 o->type = -1;
 257                 while (FcObjects[FcObjectsNumber-1].object == NULL)
 258                     --FcObjectsNumber;
 259             }
 260             break;
 261         }
 262     }
 263 }
 264
 265 FcBool
 266 FcNameRegisterObjectTypes (const FcObjectType *types, int ntypes)
 267 {
 268     int i;
 269
 270     for (i = 0; i < ntypes; i++)
 271         if (!FcObjectHashInsert (&types[i], FcTrue))
 272             return FcFalse;
 273     return FcTrue;
 274 }
 275
 276 FcBool
 277 FcNameUnregisterObjectTypes (const FcObjectType *types, int ntypes)
 278 {
 279     int i;
 280
 281     for (i = 0; i < ntypes; i++)
 282         FcObjectHashRemove (&types[i], FcTrue);
 283     return FcTrue;
 284 }
 285
 286 const FcObjectType *
 287 FcNameGetObjectType (const char *object)
 288 {
 289     return FcObjectFindByName (object, FcFalse);
 290 }
 291
 292 FcBool
 293 FcObjectValidType (FcObject object, FcType type)
 294 {
 295     FcObjectType    *t = FcObjectFindById (object);
 296
 297     if (t) {
 298         switch (t->type) {
 299         case -1:
 300             return FcTrue;
 301         case FcTypeDouble:
 302         case FcTypeInteger:
 303             if (type == FcTypeDouble || type == FcTypeInteger)
 304                 return FcTrue;
 305             break;
 306         case FcTypeLangSet:
 307             if (type == FcTypeLangSet || type == FcTypeString)
 308                 return FcTrue;
 309             break;
 310         default:
 311             if (type == t->type)
 312                 return FcTrue;
 313             break;
 314         }
 315         return FcFalse;
 316     }
 317     return FcTrue;
 318 }
 319
 320 FcObject
 321 FcObjectFromName (const char * name)
 322 {
 323     FcObjectType    *o = FcObjectFindByName (name, FcTrue);
 324
 325     if (o)
 326         return FcObjectId (o);
 327     return 0;
 328 }
 329
 330 FcBool
 331 FcObjectInit (void)
 332 {
 333     int i;
 334
 335     if (FcObjectsInited)
 336         return FcTrue;
 337
 338     FcObjectsInited = FcTrue;
 339     for (i = 0; i < NUM_OBJECT_TYPES; i++)
 340         if (!FcObjectHashInsert (&_FcBaseObjectTypes[i], FcFalse))
 341             return FcFalse;
 342     return FcTrue;
 343 }
 344
 345 void
 346 FcObjectFini (void)
 347 {
 348     int             i;
 349     FcObjectBucket  *b, *next;
 350
 351     for (i = 0; i < OBJECT_HASH_SIZE; i++)
 352     {
 353         for (b = FcObjectBuckets[i]; b; b = next)
 354         {
 355             next = b->next;
 356             free (b);
 357         }
 358         FcObjectBuckets[i] = 0;
 359     }
 360     for (i = 0; i < FcObjectsNumber; i++)
 361         if (FcObjects[i].type == -1)
 362             free ((void*) FcObjects[i].object);
 363     if (FcObjects != _FcBaseObjectTypes)
 364         free (FcObjects);
 365     FcObjects = (FcObjectType *) _FcBaseObjectTypes;
 366     FcObjectsNumber = NUM_OBJECT_TYPES;
 367     FcObjectsSize = 0;
 368     FcObjectsInited = FcFalse;
 369 }
 370
 371 const char *
 372 FcObjectName (FcObject object)
 373 {
 374     FcObjectType    *o = FcObjectFindById (object);
 375
 376     if (o)
 377         return o->object;
 378     return NULL;
 379 }
 380
 381 static const FcConstant _FcBaseConstants[] = {
 382     { (FcChar8 *) "thin",           "weight",   FC_WEIGHT_THIN, },
 383     { (FcChar8 *) "extralight",     "weight",   FC_WEIGHT_EXTRALIGHT, },
 384     { (FcChar8 *) "ultralight",     "weight",   FC_WEIGHT_EXTRALIGHT, },
 385     { (FcChar8 *) "light",          "weight",   FC_WEIGHT_LIGHT, },
 386     { (FcChar8 *) "book",           "weight",   FC_WEIGHT_BOOK, },
 387     { (FcChar8 *) "regular",        "weight",   FC_WEIGHT_REGULAR, },
 388     { (FcChar8 *) "medium",         "weight",   FC_WEIGHT_MEDIUM, },
 389     { (FcChar8 *) "demibold",       "weight",   FC_WEIGHT_DEMIBOLD, },
 390     { (FcChar8 *) "semibold",       "weight",   FC_WEIGHT_DEMIBOLD, },
 391     { (FcChar8 *) "bold",           "weight",   FC_WEIGHT_BOLD, },
 392     { (FcChar8 *) "extrabold",      "weight",   FC_WEIGHT_EXTRABOLD, },
 393     { (FcChar8 *) "ultrabold",      "weight",   FC_WEIGHT_EXTRABOLD, },
 394     { (FcChar8 *) "black",          "weight",   FC_WEIGHT_BLACK, },
 395     { (FcChar8 *) "heavy",          "weight",   FC_WEIGHT_HEAVY, },
 396
 397     { (FcChar8 *) "roman",          "slant",    FC_SLANT_ROMAN, },
 398     { (FcChar8 *) "italic",         "slant",    FC_SLANT_ITALIC, },
 399     { (FcChar8 *) "oblique",        "slant",    FC_SLANT_OBLIQUE, },
 400
 401     { (FcChar8 *) "ultracondensed", "width",    FC_WIDTH_ULTRACONDENSED },
 402     { (FcChar8 *) "extracondensed", "width",    FC_WIDTH_EXTRACONDENSED },
 403     { (FcChar8 *) "condensed",      "width",    FC_WIDTH_CONDENSED },
 404     { (FcChar8 *) "semicondensed", "width",     FC_WIDTH_SEMICONDENSED },
 405     { (FcChar8 *) "normal",         "width",    FC_WIDTH_NORMAL },
 406     { (FcChar8 *) "semiexpanded",   "width",    FC_WIDTH_SEMIEXPANDED },
 407     { (FcChar8 *) "expanded",       "width",    FC_WIDTH_EXPANDED },
 408     { (FcChar8 *) "extraexpanded",  "width",    FC_WIDTH_EXTRAEXPANDED },
 409     { (FcChar8 *) "ultraexpanded",  "width",    FC_WIDTH_ULTRAEXPANDED },
 410
 411     { (FcChar8 *) "proportional",   "spacing",  FC_PROPORTIONAL, },
 412     { (FcChar8 *) "dual",           "spacing",  FC_DUAL, },
 413     { (FcChar8 *) "mono",           "spacing",  FC_MONO, },
 414     { (FcChar8 *) "charcell",       "spacing",  FC_CHARCELL, },
 415
 416     { (FcChar8 *) "unknown",        "rgba",         FC_RGBA_UNKNOWN },
 417     { (FcChar8 *) "rgb",            "rgba",         FC_RGBA_RGB, },
 418     { (FcChar8 *) "bgr",            "rgba",         FC_RGBA_BGR, },
 419     { (FcChar8 *) "vrgb",           "rgba",         FC_RGBA_VRGB },
 420     { (FcChar8 *) "vbgr",           "rgba",         FC_RGBA_VBGR },
 421     { (FcChar8 *) "none",           "rgba",         FC_RGBA_NONE },
 422
 423     { (FcChar8 *) "hintnone",       "hintstyle",   FC_HINT_NONE },
 424     { (FcChar8 *) "hintslight",     "hintstyle",   FC_HINT_SLIGHT },
 425     { (FcChar8 *) "hintmedium",     "hintstyle",   FC_HINT_MEDIUM },
 426     { (FcChar8 *) "hintfull",       "hintstyle",   FC_HINT_FULL },
 427
 428     { (FcChar8 *) "antialias",      "antialias",    FcTrue },
 429     { (FcChar8 *) "hinting",        "hinting",      FcTrue },
 430     { (FcChar8 *) "verticallayout", "verticallayout",   FcTrue },
 431     { (FcChar8 *) "autohint",       "autohint",     FcTrue },
 432     { (FcChar8 *) "globaladvance",  "globaladvance",    FcTrue },
 433     { (FcChar8 *) "outline",        "outline",      FcTrue },
 434     { (FcChar8 *) "scalable",       "scalable",     FcTrue },
 435     { (FcChar8 *) "minspace",       "minspace",     FcTrue },
 436     { (FcChar8 *) "embolden",       "embolden",     FcTrue },
 437     { (FcChar8 *) "embeddedbitmap", "embeddedbitmap",   FcTrue },
 438     { (FcChar8 *) "decorative",     "decorative",   FcTrue },
 439     { (FcChar8 *) "lcdnone",        "lcdfilter",    FC_LCD_NONE },
 440     { (FcChar8 *) "lcddefault",     "lcdfilter",    FC_LCD_DEFAULT },
 441     { (FcChar8 *) "lcdlight",       "lcdfilter",    FC_LCD_LIGHT },
 442     { (FcChar8 *) "lcdlegacy",      "lcdfilter",    FC_LCD_LEGACY },
 443 };
 444
 445 #define NUM_FC_CONSTANTS   (sizeof _FcBaseConstants/sizeof _FcBaseConstants[0])
 446
 447 typedef struct _FcConstantList FcConstantList;
 448
 449 struct _FcConstantList {
 450     const FcConstantList    *next;
 451     const FcConstant        *consts;
 452     int                     nconsts;
 453 };
 454
 455 static const FcConstantList _FcBaseConstantList = {
 456     0,
 457     _FcBaseConstants,
 458     NUM_FC_CONSTANTS
 459 };
 460
 461 static const FcConstantList     *_FcConstants = &_FcBaseConstantList;
 462
 463 FcBool
 464 FcNameRegisterConstants (const FcConstant *consts, int nconsts)
 465 {
 466     FcConstantList      *l;
 467
 468     l = (FcConstantList *) malloc (sizeof (FcConstantList));
 469     if (!l)
 470         return FcFalse;
 471     FcMemAlloc (FC_MEM_CONSTANT, sizeof (FcConstantList));
 472     l->consts = consts;
 473     l->nconsts = nconsts;
 474     l->next = _FcConstants;
 475     _FcConstants = l;
 476     return FcTrue;
 477 }
 478
 479 FcBool
 480 FcNameUnregisterConstants (const FcConstant *consts, int nconsts)
 481 {
 482     const FcConstantList        *l, **prev;
 483
 484     for (prev = &_FcConstants;
 485          (l = *prev);
 486          prev = (const FcConstantList **) &(l->next))
 487     {
 488         if (l->consts == consts && l->nconsts == nconsts)
 489         {
 490             *prev = l->next;
 491             FcMemFree (FC_MEM_CONSTANT, sizeof (FcConstantList));
 492             free ((void *) l);
 493             return FcTrue;
 494         }
 495     }
 496     return FcFalse;
 497 }
 498
 499 const FcConstant *
 500 FcNameGetConstant (FcChar8 *string)
 501 {
 502     const FcConstantList    *l;
 503     int                     i;
 504
 505     for (l = _FcConstants; l; l = l->next)
 506     {
 507         for (i = 0; i < l->nconsts; i++)
 508             if (!FcStrCmpIgnoreCase (string, l->consts[i].name))
 509                 return &l->consts[i];
 510     }
 511     return 0;
 512 }
 513
 514 FcBool
 515 FcNameConstant (FcChar8 *string, int *result)
 516 {
 517     const FcConstant    *c;
 518
 519     if ((c = FcNameGetConstant(string)))
 520     {
 521         *result = c->value;
 522         return FcTrue;
 523     }
 524     return FcFalse;
 525 }
 526
 527 FcBool
 528 FcNameBool (const FcChar8 *v, FcBool *result)
 529 {
 530     char    c0, c1;
 531
 532     c0 = *v;
 533     c0 = FcToLower (c0);
 534     if (c0 == 't' || c0 == 'y' || c0 == '1')
 535     {
 536         *result = FcTrue;
 537         return FcTrue;
 538     }
 539     if (c0 == 'f' || c0 == 'n' || c0 == '0')
 540     {
 541         *result = FcFalse;
 542         return FcTrue;
 543     }
 544     if (c0 == 'o')
 545     {
 546         c1 = v[1];
 547         c1 = FcToLower (c1);
 548         if (c1 == 'n')
 549         {
 550             *result = FcTrue;
 551             return FcTrue;
 552         }
 553         if (c1 == 'f')
 554         {
 555             *result = FcFalse;
 556             return FcTrue;
 557         }
 558     }
 559     return FcFalse;
 560 }
 561
 562 static FcValue
 563 FcNameConvert (FcType type, FcChar8 *string, FcMatrix *m)
 564 {
 565     FcValue     v;
 566
 567     v.type = type;
 568     switch (v.type) {
 569     case FcTypeInteger:
 570         if (!FcNameConstant (string, &v.u.i))
 571             v.u.i = atoi ((char *) string);
 572         break;
 573     case FcTypeString:
 574         v.u.s = FcStrStaticName(string);
 575         if (!v.u.s)
 576             v.type = FcTypeVoid;
 577         break;
 578     case FcTypeBool:
 579         if (!FcNameBool (string, &v.u.b))
 580             v.u.b = FcFalse;
 581         break;
 582     case FcTypeDouble:
 583         v.u.d = strtod ((char *) string, 0);
 584         break;
 585     case FcTypeMatrix:
 586         v.u.m = m;
 587         sscanf ((char *) string, "%lg %lg %lg %lg", &m->xx, &m->xy, &m->yx, &m->yy);
 588         break;
 589     case FcTypeCharSet:
 590         v.u.c = FcNameParseCharSet (string);
 591         if (!v.u.c)
 592             v.type = FcTypeVoid;
 593         break;
 594     case FcTypeLangSet:
 595         v.u.l = FcNameParseLangSet (string);
 596         if (!v.u.l)
 597             v.type = FcTypeVoid;
 598         break;
 599     default:
 600         break;
 601     }
 602     return v;
 603 }
 604
 605 static const FcChar8 *
 606 FcNameFindNext (const FcChar8 *cur, const char *delim, FcChar8 *save, FcChar8 *last)
 607 {
 608     FcChar8    c;
 609
 610     while ((c = *cur))
 611     {
 612         if (c == '\\')
 613         {
 614             ++cur;
 615             if (!(c = *cur))
 616                 break;
 617         }
 618         else if (strchr (delim, c))
 619             break;
 620         ++cur;
 621         *save++ = c;
 622     }
 623     *save = 0;
 624     *last = *cur;
 625     if (*cur)
 626         cur++;
 627     return cur;
 628 }
 629
 630 FcPattern *
 631 FcNameParse (const FcChar8 *name)
 632 {
 633     FcChar8             *save;
 634     FcPattern           *pat;
 635     double              d;
 636     FcChar8             *e;
 637     FcChar8             delim;
 638     FcValue             v;
 639     FcMatrix            m;
 640     const FcObjectType  *t;
 641     const FcConstant    *c;
 642
 643     /* freed below */
 644     save = malloc (strlen ((char *) name) + 1);
 645     if (!save)
 646         goto bail0;
 647     pat = FcPatternCreate ();
 648     if (!pat)
 649         goto bail1;
 650
 651     for (;;)
 652     {
 653         name = FcNameFindNext (name, "-,:", save, &delim);
 654         if (save[0])
 655         {
 656             if (!FcPatternAddString (pat, FC_FAMILY, save))
 657                 goto bail2;
 658         }
 659         if (delim != ',')
 660             break;
 661     }
 662     if (delim == '-')
 663     {
 664         for (;;)
 665         {
 666             name = FcNameFindNext (name, "-,:", save, &delim);
 667             d = strtod ((char *) save, (char **) &e);
 668             if (e != save)
 669             {
 670                 if (!FcPatternAddDouble (pat, FC_SIZE, d))
 671                     goto bail2;
 672             }
 673             if (delim != ',')
 674                 break;
 675         }
 676     }
 677     while (delim == ':')
 678     {
 679         name = FcNameFindNext (name, "=_:", save, &delim);
 680         if (save[0])
 681         {
 682             if (delim == '=' || delim == '_')
 683             {
 684                 t = FcNameGetObjectType ((char *) save);
 685                 for (;;)
 686                 {
 687                     name = FcNameFindNext (name, ":,", save, &delim);
 688                     if (t)
 689                     {
 690                         v = FcNameConvert (t->type, save, &m);
 691                         if (!FcPatternAdd (pat, t->object, v, FcTrue))
 692                         {
 693                             switch (v.type) {
 694                             case FcTypeCharSet:
 695                                 FcCharSetDestroy ((FcCharSet *) v.u.c);
 696                                 break;
 697                             case FcTypeLangSet:
 698                                 FcLangSetDestroy ((FcLangSet *) v.u.l);
 699                                 break;
 700                             default:
 701                                 break;
 702                             }
 703                             goto bail2;
 704                         }
 705                         switch (v.type) {
 706                         case FcTypeCharSet:
 707                             FcCharSetDestroy ((FcCharSet *) v.u.c);
 708                             break;
 709                         case FcTypeLangSet:
 710                             FcLangSetDestroy ((FcLangSet *) v.u.l);
 711                             break;
 712                         default:
 713                             break;
 714                         }
 715                     }
 716                     if (delim != ',')
 717                         break;
 718                 }
 719             }
 720             else
 721             {
 722                 if ((c = FcNameGetConstant (save)))
 723                 {
 724                     t = FcNameGetObjectType ((char *) c->object);
 725                     switch (t->type) {
 726                     case FcTypeInteger:
 727                     case FcTypeDouble:
 728                         if (!FcPatternAddInteger (pat, c->object, c->value))
 729                             goto bail2;
 730                         break;
 731                     case FcTypeBool:
 732                         if (!FcPatternAddBool (pat, c->object, c->value))
 733                             goto bail2;
 734                         break;
 735                     default:
 736                         break;
 737                     }
 738                 }
 739             }
 740         }
 741     }
 742
 743     free (save);
 744     return pat;
 745
 746 bail2:
 747     FcPatternDestroy (pat);
 748 bail1:
 749     free (save);
 750 bail0:
 751     return 0;
 752 }
 753 static FcBool
 754 FcNameUnparseString (FcStrBuf       *buf,
 755                      const FcChar8  *string,
 756                      const FcChar8  *escape)
 757 {
 758     FcChar8 c;
 759     while ((c = *string++))
 760     {
 761         if (escape && strchr ((char *) escape, (char) c))
 762         {
 763             if (!FcStrBufChar (buf, escape[0]))
 764                 return FcFalse;
 765         }
 766         if (!FcStrBufChar (buf, c))
 767             return FcFalse;
 768     }
 769     return FcTrue;
 770 }
 771
 772 static FcBool
 773 FcNameUnparseValue (FcStrBuf    *buf,
 774                     FcValue     *v0,
 775                     FcChar8     *escape)
 776 {
 777     FcChar8     temp[1024];
 778     FcValue v = FcValueCanonicalize(v0);
 779
 780     switch (v.type) {
 781     case FcTypeVoid:
 782         return FcTrue;
 783     case FcTypeInteger:
 784         sprintf ((char *) temp, "%d", v.u.i);
 785         return FcNameUnparseString (buf, temp, 0);
 786     case FcTypeDouble:
 787         sprintf ((char *) temp, "%g", v.u.d);
 788         return FcNameUnparseString (buf, temp, 0);
 789     case FcTypeString:
 790         return FcNameUnparseString (buf, v.u.s, escape);
 791     case FcTypeBool:
 792         return FcNameUnparseString (buf, v.u.b ? (FcChar8 *) "True" : (FcChar8 *) "False", 0);
 793     case FcTypeMatrix:
 794         sprintf ((char *) temp, "%g %g %g %g",
 795                  v.u.m->xx, v.u.m->xy, v.u.m->yx, v.u.m->yy);
 796         return FcNameUnparseString (buf, temp, 0);
 797     case FcTypeCharSet:
 798         return FcNameUnparseCharSet (buf, v.u.c);
 799     case FcTypeLangSet:
 800         return FcNameUnparseLangSet (buf, v.u.l);
 801     case FcTypeFTFace:
 802         return FcTrue;
 803     }
 804     return FcFalse;
 805 }
 806
 807 static FcBool
 808 FcNameUnparseValueList (FcStrBuf        *buf,
 809                         FcValueListPtr  v,
 810                         FcChar8         *escape)
 811 {
 812     while (v)
 813     {
 814         if (!FcNameUnparseValue (buf, &v->value, escape))
 815             return FcFalse;
 816         if ((v = FcValueListNext(v)) != NULL)
 817             if (!FcNameUnparseString (buf, (FcChar8 *) ",", 0))
 818                 return FcFalse;
 819     }
 820     return FcTrue;
 821 }
 822
 823 #define FC_ESCAPE_FIXED    "\\-:,"
 824 #define FC_ESCAPE_VARIABLE "\\=_:,"
 825
 826 FcChar8 *
 827 FcNameUnparse (FcPattern *pat)
 828 {
 829     return FcNameUnparseEscaped (pat, FcTrue);
 830 }
 831
 832 FcChar8 *
 833 FcNameUnparseEscaped (FcPattern *pat, FcBool escape)
 834 {
 835     FcStrBuf                buf;
 836     FcChar8                 buf_static[8192];
 837     int                     i;
 838     FcPatternElt            *e;
 839     const FcObjectTypeList  *l;
 840     const FcObjectType      *o;
 841
 842     FcStrBufInit (&buf, buf_static, sizeof (buf_static));
 843     e = FcPatternObjectFindElt (pat, FC_FAMILY_OBJECT);
 844     if (e)
 845     {
 846         if (!FcNameUnparseValueList (&buf, FcPatternEltValues(e), escape ? (FcChar8 *) FC_ESCAPE_FIXED : 0))
 847             goto bail0;
 848     }
 849     e = FcPatternObjectFindElt (pat, FC_SIZE_OBJECT);
 850     if (e)
 851     {
 852         if (!FcNameUnparseString (&buf, (FcChar8 *) "-", 0))
 853             goto bail0;
 854         if (!FcNameUnparseValueList (&buf, FcPatternEltValues(e), escape ? (FcChar8 *) FC_ESCAPE_FIXED : 0))
 855             goto bail0;
 856     }
 857     for (l = _FcObjectTypes; l; l = l->next)
 858     {
 859         for (i = 0; i < l->ntypes; i++)
 860         {
 861             o = &l->types[i];
 862             if (!strcmp (o->object, FC_FAMILY) ||
 863                 !strcmp (o->object, FC_SIZE) ||
 864                 !strcmp (o->object, FC_FILE))
 865                 continue;
 866
 867             e = FcPatternObjectFindElt (pat, FcObjectFromName (o->object));
 868             if (e)
 869             {
 870                 if (!FcNameUnparseString (&buf, (FcChar8 *) ":", 0))
 871                     goto bail0;
 872                 if (!FcNameUnparseString (&buf, (FcChar8 *) o->object, escape ? (FcChar8 *) FC_ESCAPE_VARIABLE : 0))
 873                     goto bail0;
 874                 if (!FcNameUnparseString (&buf, (FcChar8 *) "=", 0))
 875                     goto bail0;
 876                 if (!FcNameUnparseValueList (&buf, FcPatternEltValues(e), escape ?
 877                                              (FcChar8 *) FC_ESCAPE_VARIABLE : 0))
 878                     goto bail0;
 879             }
 880         }
 881     }
 882     return FcStrBufDone (&buf);
 883 bail0:
 884     FcStrBufDestroy (&buf);
 885     return 0;
 886 }
 887 #define __fcname__
 888 #include "fcaliastail.h"
 889 #undef __fcname__