src/fcblanks.c

   1 /*
   2  * fontconfig/src/fcblanks.c
   3  *
   4  * Copyright © 2002 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
  27 FcBlanks *
  28 FcBlanksCreate (void)
  29 {
  30     FcBlanks    *b;
  31
  32     b = malloc (sizeof (FcBlanks));
  33     if (!b)
  34         return 0;
  35     FcMemAlloc (FC_MEM_BLANKS, sizeof (FcBlanks));
  36     b->nblank = 0;
  37     b->sblank = 0;
  38     b->blanks = 0;
  39     return b;
  40 }
  41
  42 void
  43 FcBlanksDestroy (FcBlanks *b)
  44 {
  45     if (b->blanks)
  46     {
  47         FcMemFree (FC_MEM_BLANKS, b->sblank * sizeof (FcChar32));
  48         free (b->blanks);
  49     }
  50     FcMemFree (FC_MEM_BLANKS, sizeof (FcBlanks));
  51     free (b);
  52 }
  53
  54 FcBool
  55 FcBlanksAdd (FcBlanks *b, FcChar32 ucs4)
  56 {
  57     FcChar32    *c;
  58     int         sblank;
  59
  60     for (sblank = 0; sblank < b->nblank; sblank++)
  61         if (b->blanks[sblank] == ucs4)
  62             return FcTrue;
  63
  64     if (b->nblank == b->sblank)
  65     {
  66         sblank = b->sblank + 32;
  67         if (b->blanks)
  68             c = (FcChar32 *) realloc (b->blanks, sblank * sizeof (FcChar32));
  69         else
  70             c = (FcChar32 *) malloc (sblank * sizeof (FcChar32));
  71         if (!c)
  72             return FcFalse;
  73         if (b->sblank)
  74             FcMemFree (FC_MEM_BLANKS, b->sblank * sizeof (FcChar32));
  75         FcMemAlloc (FC_MEM_BLANKS, sblank * sizeof (FcChar32));
  76         b->sblank = sblank;
  77         b->blanks = c;
  78     }
  79     b->blanks[b->nblank++] = ucs4;
  80     return FcTrue;
  81 }
  82
  83 FcBool
  84 FcBlanksIsMember (FcBlanks *b, FcChar32 ucs4)
  85 {
  86     int i;
  87
  88     for (i = 0; i < b->nblank; i++)
  89         if (b->blanks[i] == ucs4)
  90             return FcTrue;
  91     return FcFalse;
  92 }
  93 #define __fcblanks__
  94 #include "fcaliastail.h"
  95 #undef __fcblanks__