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 the author(s) not be used in
  11  * advertising or publicity pertaining to distribution of the software without
  12  * specific, written prior permission.  The authors make 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  * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  17  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  18  * EVENT SHALL THE AUTHOR(S) 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 FcTypeDouble:
 300         case FcTypeInteger:
 301             if (type == FcTypeDouble || type == FcTypeInteger)
 302                 return FcTrue;
 303             break;
 304         case FcTypeLangSet:
 305             if (type == FcTypeLangSet || type == FcTypeString)
 306                 return FcTrue;
 307             break;
 308         default:
 309             if (t->type == -1 || type == t->type)
 310                 return FcTrue;
 311             break;
 312         }
 313         return FcFalse;
 314     }
 315     return FcTrue;
 316 }
 317
 318 FcObject
 319 FcObjectFromName (const char * name)
 320 {
 321     FcObjectType    *o = FcObjectFindByName (name, FcTrue);
 322
 323     if (o)
 324         return FcObjectId (o);
 325     return 0;
 326 }
 327
 328 FcObjectSet *
 329 FcObjectGetSet (void)
 330 {
 331     int         i;
 332     FcObjectSet *os = NULL;
 333
 334
 335     os = FcObjectSetCreate ();
 336     for (i = 0; i < FcObjectsNumber; i++)
 337         FcObjectSetAdd (os, FcObjects[i].object);
 338
 339     return os;
 340 }
 341
 342 FcBool
 343 FcObjectInit (void)
 344 {
 345     int i;
 346
 347     if (FcObjectsInited)
 348         return FcTrue;
 349
 350     FcObjectsInited = FcTrue;
 351     for (i = 0; i < NUM_OBJECT_TYPES; i++)
 352         if (!FcObjectHashInsert (&_FcBaseObjectTypes[i], FcFalse))
 353             return FcFalse;
 354     return FcTrue;
 355 }
 356
 357 void
 358 FcObjectFini (void)
 359 {
 360     int             i;
 361     FcObjectBucket  *b, *next;
 362
 363     for (i = 0; i < OBJECT_HASH_SIZE; i++)
 364     {
 365         for (b = FcObjectBuckets[i]; b; b = next)
 366         {
 367             next = b->next;
 368             free (b);
 369         }
 370         FcObjectBuckets[i] = 0;
 371     }
 372     for (i = 0; i < FcObjectsNumber; i++)
 373         if (FcObjects[i].type == -1)
 374             free ((void*) FcObjects[i].object);
 375     if (FcObjects != _FcBaseObjectTypes)
 376         free (FcObjects);
 377     FcObjects = (FcObjectType *) _FcBaseObjectTypes;
 378     FcObjectsNumber = NUM_OBJECT_TYPES;
 379     FcObjectsSize = 0;
 380     FcObjectsInited = FcFalse;
 381 }
 382
 383 const char *
 384 FcObjectName (FcObject object)
 385 {
 386     FcObjectType    *o = FcObjectFindById (object);
 387
 388     if (o)
 389         return o->object;
 390     return NULL;
 391 }
 392
 393 static const FcConstant _FcBaseConstants[] = {
 394     { (FcChar8 *) "thin",           "weight",   FC_WEIGHT_THIN, },
 395     { (FcChar8 *) "extralight",     "weight",   FC_WEIGHT_EXTRALIGHT, },
 396     { (FcChar8 *) "ultralight",     "weight",   FC_WEIGHT_EXTRALIGHT, },
 397     { (FcChar8 *) "light",          "weight",   FC_WEIGHT_LIGHT, },
 398     { (FcChar8 *) "book",           "weight",   FC_WEIGHT_BOOK, },
 399     { (FcChar8 *) "regular",        "weight",   FC_WEIGHT_REGULAR, },
 400     { (FcChar8 *) "medium",         "weight",   FC_WEIGHT_MEDIUM, },
 401     { (FcChar8 *) "demibold",       "weight",   FC_WEIGHT_DEMIBOLD, },
 402     { (FcChar8 *) "semibold",       "weight",   FC_WEIGHT_DEMIBOLD, },
 403     { (FcChar8 *) "bold",           "weight",   FC_WEIGHT_BOLD, },
 404     { (FcChar8 *) "extrabold",      "weight",   FC_WEIGHT_EXTRABOLD, },
 405     { (FcChar8 *) "ultrabold",      "weight",   FC_WEIGHT_EXTRABOLD, },
 406     { (FcChar8 *) "black",          "weight",   FC_WEIGHT_BLACK, },
 407     { (FcChar8 *) "heavy",          "weight",   FC_WEIGHT_HEAVY, },
 408
 409     { (FcChar8 *) "roman",          "slant",    FC_SLANT_ROMAN, },
 410     { (FcChar8 *) "italic",         "slant",    FC_SLANT_ITALIC, },
 411     { (FcChar8 *) "oblique",        "slant",    FC_SLANT_OBLIQUE, },
 412
 413     { (FcChar8 *) "ultracondensed", "width",    FC_WIDTH_ULTRACONDENSED },
 414     { (FcChar8 *) "extracondensed", "width",    FC_WIDTH_EXTRACONDENSED },
 415     { (FcChar8 *) "condensed",      "width",    FC_WIDTH_CONDENSED },
 416     { (FcChar8 *) "semicondensed", "width",     FC_WIDTH_SEMICONDENSED },
 417     { (FcChar8 *) "normal",         "width",    FC_WIDTH_NORMAL },
 418     { (FcChar8 *) "semiexpanded",   "width",    FC_WIDTH_SEMIEXPANDED },
 419     { (FcChar8 *) "expanded",       "width",    FC_WIDTH_EXPANDED },
 420     { (FcChar8 *) "extraexpanded",  "width",    FC_WIDTH_EXTRAEXPANDED },
 421     { (FcChar8 *) "ultraexpanded",  "width",    FC_WIDTH_ULTRAEXPANDED },
 422
 423     { (FcChar8 *) "proportional",   "spacing",  FC_PROPORTIONAL, },
 424     { (FcChar8 *) "dual",           "spacing",  FC_DUAL, },
 425     { (FcChar8 *) "mono",           "spacing",  FC_MONO, },
 426     { (FcChar8 *) "charcell",       "spacing",  FC_CHARCELL, },
 427
 428     { (FcChar8 *) "unknown",        "rgba",         FC_RGBA_UNKNOWN },
 429     { (FcChar8 *) "rgb",            "rgba",         FC_RGBA_RGB, },
 430     { (FcChar8 *) "bgr",            "rgba",         FC_RGBA_BGR, },
 431     { (FcChar8 *) "vrgb",           "rgba",         FC_RGBA_VRGB },
 432     { (FcChar8 *) "vbgr",           "rgba",         FC_RGBA_VBGR },
 433     { (FcChar8 *) "none",           "rgba",         FC_RGBA_NONE },
 434
 435     { (FcChar8 *) "hintnone",       "hintstyle",   FC_HINT_NONE },
 436     { (FcChar8 *) "hintslight",     "hintstyle",   FC_HINT_SLIGHT },
 437     { (FcChar8 *) "hintmedium",     "hintstyle",   FC_HINT_MEDIUM },
 438     { (FcChar8 *) "hintfull",       "hintstyle",   FC_HINT_FULL },
 439
 440     { (FcChar8 *) "antialias",      "antialias",    FcTrue },
 441     { (FcChar8 *) "hinting",        "hinting",      FcTrue },
 442     { (FcChar8 *) "verticallayout", "verticallayout",   FcTrue },
 443     { (FcChar8 *) "autohint",       "autohint",     FcTrue },
 444     { (FcChar8 *) "globaladvance",  "globaladvance",    FcTrue },
 445     { (FcChar8 *) "outline",        "outline",      FcTrue },
 446     { (FcChar8 *) "scalable",       "scalable",     FcTrue },
 447     { (FcChar8 *) "minspace",       "minspace",     FcTrue },
 448     { (FcChar8 *) "embolden",       "embolden",     FcTrue },
 449     { (FcChar8 *) "embeddedbitmap", "embeddedbitmap",   FcTrue },
 450     { (FcChar8 *) "decorative",     "decorative",   FcTrue },
 451     { (FcChar8 *) "lcdnone",        "lcdfilter",    FC_LCD_NONE },
 452     { (FcChar8 *) "lcddefault",     "lcdfilter",    FC_LCD_DEFAULT },
 453     { (FcChar8 *) "lcdlight",       "lcdfilter",    FC_LCD_LIGHT },
 454     { (FcChar8 *) "lcdlegacy",      "lcdfilter",    FC_LCD_LEGACY },
 455 };
 456
 457 #define NUM_FC_CONSTANTS   (sizeof _FcBaseConstants/sizeof _FcBaseConstants[0])
 458
 459 typedef struct _FcConstantList FcConstantList;
 460
 461 struct _FcConstantList {
 462     const FcConstantList    *next;
 463     const FcConstant        *consts;
 464     int                     nconsts;
 465 };
 466
 467 static const FcConstantList _FcBaseConstantList = {
 468     0,
 469     _FcBaseConstants,
 470     NUM_FC_CONSTANTS
 471 };
 472
 473 static const FcConstantList     *_FcConstants = &_FcBaseConstantList;
 474
 475 FcBool
 476 FcNameRegisterConstants (const FcConstant *consts, int nconsts)
 477 {
 478     FcConstantList      *l;
 479
 480     l = (FcConstantList *) malloc (sizeof (FcConstantList));
 481     if (!l)
 482         return FcFalse;
 483     FcMemAlloc (FC_MEM_CONSTANT, sizeof (FcConstantList));
 484     l->consts = consts;
 485     l->nconsts = nconsts;
 486     l->next = _FcConstants;
 487     _FcConstants = l;
 488     return FcTrue;
 489 }
 490
 491 FcBool
 492 FcNameUnregisterConstants (const FcConstant *consts, int nconsts)
 493 {
 494     const FcConstantList        *l, **prev;
 495
 496     for (prev = &_FcConstants;
 497          (l = *prev);
 498          prev = (const FcConstantList **) &(l->next))
 499     {
 500         if (l->consts == consts && l->nconsts == nconsts)
 501         {
 502             *prev = l->next;
 503             FcMemFree (FC_MEM_CONSTANT, sizeof (FcConstantList));
 504             free ((void *) l);
 505             return FcTrue;
 506         }
 507     }
 508     return FcFalse;
 509 }
 510
 511 const FcConstant *
 512 FcNameGetConstant (const FcChar8 *string)
 513 {
 514     const FcConstantList    *l;
 515     int                     i;
 516
 517     for (l = _FcConstants; l; l = l->next)
 518     {
 519         for (i = 0; i < l->nconsts; i++)
 520             if (!FcStrCmpIgnoreCase (string, l->consts[i].name))
 521                 return &l->consts[i];
 522     }
 523     return 0;
 524 }
 525
 526 FcBool
 527 FcNameConstant (const FcChar8 *string, int *result)
 528 {
 529     const FcConstant    *c;
 530
 531     if ((c = FcNameGetConstant(string)))
 532     {
 533         *result = c->value;
 534         return FcTrue;
 535     }
 536     return FcFalse;
 537 }
 538
 539 FcBool
 540 FcNameBool (const FcChar8 *v, FcBool *result)
 541 {
 542     char    c0, c1;
 543
 544     c0 = *v;
 545     c0 = FcToLower (c0);
 546     if (c0 == 't' || c0 == 'y' || c0 == '1')
 547     {
 548         *result = FcTrue;
 549         return FcTrue;
 550     }
 551     if (c0 == 'f' || c0 == 'n' || c0 == '0')
 552     {
 553         *result = FcFalse;
 554         return FcTrue;
 555     }
 556     if (c0 == 'o')
 557     {
 558         c1 = v[1];
 559         c1 = FcToLower (c1);
 560         if (c1 == 'n')
 561         {
 562             *result = FcTrue;
 563             return FcTrue;
 564         }
 565         if (c1 == 'f')
 566         {
 567             *result = FcFalse;
 568             return FcTrue;
 569         }
 570     }
 571     return FcFalse;
 572 }
 573
 574 static FcValue
 575 FcNameConvert (FcType type, FcChar8 *string, FcMatrix *m)
 576 {
 577     FcValue     v;
 578
 579     v.type = type;
 580     switch (v.type) {
 581     case FcTypeInteger:
 582         if (!FcNameConstant (string, &v.u.i))
 583             v.u.i = atoi ((char *) string);
 584         break;
 585     case FcTypeString:
 586         v.u.s = FcStrStaticName(string);
 587         if (!v.u.s)
 588             v.type = FcTypeVoid;
 589         break;
 590     case FcTypeBool:
 591         if (!FcNameBool (string, &v.u.b))
 592             v.u.b = FcFalse;
 593         break;
 594     case FcTypeDouble:
 595         v.u.d = strtod ((char *) string, 0);
 596         break;
 597     case FcTypeMatrix:
 598         v.u.m = m;
 599         sscanf ((char *) string, "%lg %lg %lg %lg", &m->xx, &m->xy, &m->yx, &m->yy);
 600         break;
 601     case FcTypeCharSet:
 602         v.u.c = FcNameParseCharSet (string);
 603         if (!v.u.c)
 604             v.type = FcTypeVoid;
 605         break;
 606     case FcTypeLangSet:
 607         v.u.l = FcNameParseLangSet (string);
 608         if (!v.u.l)
 609             v.type = FcTypeVoid;
 610         break;
 611     default:
 612         break;
 613     }
 614     return v;
 615 }
 616
 617 static const FcChar8 *
 618 FcNameFindNext (const FcChar8 *cur, const char *delim, FcChar8 *save, FcChar8 *last)
 619 {
 620     FcChar8    c;
 621
 622     while ((c = *cur))
 623     {
 624         if (c == '\\')
 625         {
 626             ++cur;
 627             if (!(c = *cur))
 628                 break;
 629         }
 630         else if (strchr (delim, c))
 631             break;
 632         ++cur;
 633         *save++ = c;
 634     }
 635     *save = 0;
 636     *last = *cur;
 637     if (*cur)
 638         cur++;
 639     return cur;
 640 }
 641
 642 FcPattern *
 643 FcNameParse (const FcChar8 *name)
 644 {
 645     FcChar8             *save;
 646     FcPattern           *pat;
 647     double              d;
 648     FcChar8             *e;
 649     FcChar8             delim;
 650     FcValue             v;
 651     FcMatrix            m;
 652     const FcObjectType  *t;
 653     const FcConstant    *c;
 654
 655     /* freed below */
 656     save = malloc (strlen ((char *) name) + 1);
 657     if (!save)
 658         goto bail0;
 659     pat = FcPatternCreate ();
 660     if (!pat)
 661         goto bail1;
 662
 663     for (;;)
 664     {
 665         name = FcNameFindNext (name, "-,:", save, &delim);
 666         if (save[0])
 667         {
 668             if (!FcPatternAddString (pat, FC_FAMILY, save))
 669                 goto bail2;
 670         }
 671         if (delim != ',')
 672             break;
 673     }
 674     if (delim == '-')
 675     {
 676         for (;;)
 677         {
 678             name = FcNameFindNext (name, "-,:", save, &delim);
 679             d = strtod ((char *) save, (char **) &e);
 680             if (e != save)
 681             {
 682                 if (!FcPatternAddDouble (pat, FC_SIZE, d))
 683                     goto bail2;
 684             }
 685             if (delim != ',')
 686                 break;
 687         }
 688     }
 689     while (delim == ':')
 690     {
 691         name = FcNameFindNext (name, "=_:", save, &delim);
 692         if (save[0])
 693         {
 694             if (delim == '=' || delim == '_')
 695             {
 696                 t = FcNameGetObjectType ((char *) save);
 697                 for (;;)
 698                 {
 699                     name = FcNameFindNext (name, ":,", save, &delim);
 700                     if (t)
 701                     {
 702                         v = FcNameConvert (t->type, save, &m);
 703                         if (!FcPatternAdd (pat, t->object, v, FcTrue))
 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                             goto bail2;
 716                         }
 717                         switch (v.type) {
 718                         case FcTypeCharSet:
 719                             FcCharSetDestroy ((FcCharSet *) v.u.c);
 720                             break;
 721                         case FcTypeLangSet:
 722                             FcLangSetDestroy ((FcLangSet *) v.u.l);
 723                             break;
 724                         default:
 725                             break;
 726                         }
 727                     }
 728                     if (delim != ',')
 729                         break;
 730                 }
 731             }
 732             else
 733             {
 734                 if ((c = FcNameGetConstant (save)))
 735                 {
 736                     t = FcNameGetObjectType ((char *) c->object);
 737                     switch (t->type) {
 738                     case FcTypeInteger:
 739                     case FcTypeDouble:
 740                         if (!FcPatternAddInteger (pat, c->object, c->value))
 741                             goto bail2;
 742                         break;
 743                     case FcTypeBool:
 744                         if (!FcPatternAddBool (pat, c->object, c->value))
 745                             goto bail2;
 746                         break;
 747                     default:
 748                         break;
 749                     }
 750                 }
 751             }
 752         }
 753     }
 754
 755     free (save);
 756     return pat;
 757
 758 bail2:
 759     FcPatternDestroy (pat);
 760 bail1:
 761     free (save);
 762 bail0:
 763     return 0;
 764 }
 765 static FcBool
 766 FcNameUnparseString (FcStrBuf       *buf,
 767                      const FcChar8  *string,
 768                      const FcChar8  *escape)
 769 {
 770     FcChar8 c;
 771     while ((c = *string++))
 772     {
 773         if (escape && strchr ((char *) escape, (char) c))
 774         {
 775             if (!FcStrBufChar (buf, escape[0]))
 776                 return FcFalse;
 777         }
 778         if (!FcStrBufChar (buf, c))
 779             return FcFalse;
 780     }
 781     return FcTrue;
 782 }
 783
 784 FcBool
 785 FcNameUnparseValue (FcStrBuf    *buf,
 786                     FcValue     *v0,
 787                     FcChar8     *escape)
 788 {
 789     FcChar8     temp[1024];
 790     FcValue v = FcValueCanonicalize(v0);
 791
 792     switch (v.type) {
 793     case FcTypeVoid:
 794         return FcTrue;
 795     case FcTypeInteger:
 796         sprintf ((char *) temp, "%d", v.u.i);
 797         return FcNameUnparseString (buf, temp, 0);
 798     case FcTypeDouble:
 799         sprintf ((char *) temp, "%g", v.u.d);
 800         return FcNameUnparseString (buf, temp, 0);
 801     case FcTypeString:
 802         return FcNameUnparseString (buf, v.u.s, escape);
 803     case FcTypeBool:
 804         return FcNameUnparseString (buf, v.u.b ? (FcChar8 *) "True" : (FcChar8 *) "False", 0);
 805     case FcTypeMatrix:
 806         sprintf ((char *) temp, "%g %g %g %g",
 807                  v.u.m->xx, v.u.m->xy, v.u.m->yx, v.u.m->yy);
 808         return FcNameUnparseString (buf, temp, 0);
 809     case FcTypeCharSet:
 810         return FcNameUnparseCharSet (buf, v.u.c);
 811     case FcTypeLangSet:
 812         return FcNameUnparseLangSet (buf, v.u.l);
 813     case FcTypeFTFace:
 814         return FcTrue;
 815     }
 816     return FcFalse;
 817 }
 818
 819 FcBool
 820 FcNameUnparseValueList (FcStrBuf        *buf,
 821                         FcValueListPtr  v,
 822                         FcChar8         *escape)
 823 {
 824     while (v)
 825     {
 826         if (!FcNameUnparseValue (buf, &v->value, escape))
 827             return FcFalse;
 828         if ((v = FcValueListNext(v)) != NULL)
 829             if (!FcNameUnparseString (buf, (FcChar8 *) ",", 0))
 830                 return FcFalse;
 831     }
 832     return FcTrue;
 833 }
 834
 835 #define FC_ESCAPE_FIXED    "\\-:,"
 836 #define FC_ESCAPE_VARIABLE "\\=_:,"
 837
 838 FcChar8 *
 839 FcNameUnparse (FcPattern *pat)
 840 {
 841     return FcNameUnparseEscaped (pat, FcTrue);
 842 }
 843
 844 FcChar8 *
 845 FcNameUnparseEscaped (FcPattern *pat, FcBool escape)
 846 {
 847     FcStrBuf                buf;
 848     FcChar8                 buf_static[8192];
 849     int                     i;
 850     FcPatternElt            *e;
 851     const FcObjectTypeList  *l;
 852     const FcObjectType      *o;
 853
 854     FcStrBufInit (&buf, buf_static, sizeof (buf_static));
 855     e = FcPatternObjectFindElt (pat, FC_FAMILY_OBJECT);
 856     if (e)
 857     {
 858         if (!FcNameUnparseValueList (&buf, FcPatternEltValues(e), escape ? (FcChar8 *) FC_ESCAPE_FIXED : 0))
 859             goto bail0;
 860     }
 861     e = FcPatternObjectFindElt (pat, FC_SIZE_OBJECT);
 862     if (e)
 863     {
 864         if (!FcNameUnparseString (&buf, (FcChar8 *) "-", 0))
 865             goto bail0;
 866         if (!FcNameUnparseValueList (&buf, FcPatternEltValues(e), escape ? (FcChar8 *) FC_ESCAPE_FIXED : 0))
 867             goto bail0;
 868     }
 869     for (l = _FcObjectTypes; l; l = l->next)
 870     {
 871         for (i = 0; i < l->ntypes; i++)
 872         {
 873             o = &l->types[i];
 874             if (!strcmp (o->object, FC_FAMILY) ||
 875                 !strcmp (o->object, FC_SIZE))
 876                 continue;
 877
 878             e = FcPatternObjectFindElt (pat, FcObjectFromName (o->object));
 879             if (e)
 880             {
 881                 if (!FcNameUnparseString (&buf, (FcChar8 *) ":", 0))
 882                     goto bail0;
 883                 if (!FcNameUnparseString (&buf, (FcChar8 *) o->object, escape ? (FcChar8 *) FC_ESCAPE_VARIABLE : 0))
 884                     goto bail0;
 885                 if (!FcNameUnparseString (&buf, (FcChar8 *) "=", 0))
 886                     goto bail0;
 887                 if (!FcNameUnparseValueList (&buf, FcPatternEltValues(e), escape ?
 888                                              (FcChar8 *) FC_ESCAPE_VARIABLE : 0))
 889                     goto bail0;
 890             }
 891         }
 892     }
 893     return FcStrBufDone (&buf);
 894 bail0:
 895     FcStrBufDestroy (&buf);
 896     return 0;
 897 }
 898 #define __fcname__
 899 #include "fcaliastail.h"
 900 #undef __fcname__