src/fcblanks.c

   1 /*
   2  * $XFree86$
   3  *
   4  * Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
   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
  27 FcBlanks *
  28 FcBlanksCreate (void)
  29 {
  30     FcBlanks    *b;
  31
  32     b = malloc (sizeof (FcBlanks));
  33     if (!b)
  34         return 0;
  35     b->nblank = 0;
  36     b->sblank = 0;
  37     b->blanks = 0;
  38     return b;
  39 }
  40
  41 void
  42 FcBlanksDestroy (FcBlanks *b)
  43 {
  44     if (b->blanks)
  45         free (b->blanks);
  46     free (b);
  47 }
  48
  49 FcBool
  50 FcBlanksAdd (FcBlanks *b, FcChar32 ucs4)
  51 {
  52     FcChar32    *c;
  53     int         sblank;
  54
  55     for (sblank = 0; sblank < b->nblank; sblank++)
  56         if (b->blanks[sblank] == ucs4)
  57             return FcTrue;
  58
  59     if (b->nblank == b->sblank)
  60     {
  61         sblank = b->sblank + 32;
  62         if (b->blanks)
  63             c = (FcChar32 *) realloc (b->blanks, sblank * sizeof (FcChar32));
  64         else
  65             c = (FcChar32 *) malloc (sblank * sizeof (FcChar32));
  66         if (!c)
  67             return FcFalse;
  68         b->sblank = sblank;
  69         b->blanks = c;
  70     }
  71     b->blanks[b->nblank++] = ucs4;
  72     return FcTrue;
  73 }
  74
  75 FcBool
  76 FcBlanksIsMember (FcBlanks *b, FcChar32 ucs4)
  77 {
  78     int i;
  79
  80     for (i = 0; i < b->nblank; i++)
  81         if (b->blanks[i] == ucs4)
  82             return FcTrue;
  83     return FcFalse;
  84 }