fc-scan/fc-scan.c

   1 /*
   2  * fontconfig/fc-scan/fc-scan.c
   3  *
   4  * Copyright © 2003 Keith Packard
   5  * Copyright © 2008 Red Hat, Inc.
   6  * Red Hat Author(s): Behdad Esfahbod
   7  *
   8  * Permission to use, copy, modify, distribute, and sell this software and its
   9  * documentation for any purpose is hereby granted without fee, provided that
  10  * the above copyright notice appear in all copies and that both that
  11  * copyright notice and this permission notice appear in supporting
  12  * documentation, and that the name of Keith Packard not be used in
  13  * advertising or publicity pertaining to distribution of the software without
  14  * specific, written prior permission.  Keith Packard makes no
  15  * representations about the suitability of this software for any purpose.  It
  16  * is provided "as is" without express or implied warranty.
  17  *
  18  * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  19  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  20  * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  21  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  22  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  23  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  24  * PERFORMANCE OF THIS SOFTWARE.
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include <config.h>
  29 #else
  30 #ifdef linux
  31 #define HAVE_GETOPT_LONG 1
  32 #endif
  33 #define HAVE_GETOPT 1
  34 #endif
  35
  36 #include <fontconfig/fontconfig.h>
  37 #include <fontconfig/fcfreetype.h>
  38 #include <stdio.h>
  39 #include <unistd.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42
  43 #ifndef HAVE_GETOPT
  44 #define HAVE_GETOPT 0
  45 #endif
  46 #ifndef HAVE_GETOPT_LONG
  47 #define HAVE_GETOPT_LONG 0
  48 #endif
  49
  50 #if HAVE_GETOPT_LONG
  51 #undef  _GNU_SOURCE
  52 #define _GNU_SOURCE
  53 #include <getopt.h>
  54 static const struct option longopts[] = {
  55     {"format", 1, 0, 'f'},
  56     {"version", 0, 0, 'V'},
  57     {"help", 0, 0, 'h'},
  58     {NULL,0,0,0},
  59 };
  60 #else
  61 #if HAVE_GETOPT
  62 extern char *optarg;
  63 extern int optind, opterr, optopt;
  64 #endif
  65 #endif
  66
  67 static void
  68 usage (char *program, int error)
  69 {
  70     FILE *file = error ? stderr : stdout;
  71 #if HAVE_GETOPT_LONG
  72     fprintf (file, "usage: %s [-Vh] [-f FORMAT] [--format FORMAT] [--version] [--help] font-file...\n",
  73              program);
  74 #else
  75     fprintf (file, "usage: %s [-Vh] [-f FORMAT] font-file...\n",
  76              program);
  77 #endif
  78     fprintf (file, "Scan font files and directories, and print resulting pattern(s)\n");
  79     fprintf (file, "\n");
  80 #if HAVE_GETOPT_LONG
  81     fprintf (file, "  -f, --format=FORMAT  use the given output format\n");
  82     fprintf (file, "  -V, --version        display font config version and exit\n");
  83     fprintf (file, "  -h, --help           display this help and exit\n");
  84 #else
  85     fprintf (file, "  -f FORMAT  (format)  use the given output format\n");
  86     fprintf (file, "  -V         (version) display font config version and exit\n");
  87     fprintf (file, "  -h         (help)    display this help and exit\n");
  88 #endif
  89     exit (error);
  90 }
  91
  92 int
  93 main (int argc, char **argv)
  94 {
  95     FcChar8     *format = NULL;
  96     int         i;
  97     FcFontSet   *fs;
  98 #if HAVE_GETOPT_LONG || HAVE_GETOPT
  99     int         c;
 100
 101 #if HAVE_GETOPT_LONG
 102     while ((c = getopt_long (argc, argv, "f:Vh", longopts, NULL)) != -1)
 103 #else
 104     while ((c = getopt (argc, argv, "f:Vh")) != -1)
 105 #endif
 106     {
 107         switch (c) {
 108         case 'f':
 109             format = (FcChar8 *) strdup (optarg);
 110             break;
 111         case 'V':
 112             fprintf (stderr, "fontconfig version %d.%d.%d\n",
 113                      FC_MAJOR, FC_MINOR, FC_REVISION);
 114             exit (0);
 115         case 'h':
 116             usage (argv[0], 0);
 117         default:
 118             usage (argv[0], 1);
 119         }
 120     }
 121     i = optind;
 122 #else
 123     i = 1;
 124 #endif
 125
 126     if (i == argc)
 127         usage (argv[0], 1);
 128
 129     if (!FcInit ())
 130     {
 131         fprintf (stderr, "Can't init font config library\n");
 132         return 1;
 133     }
 134
 135     fs = FcFontSetCreate ();
 136
 137     for (; i < argc; i++)
 138     {
 139         const FcChar8 *file = (FcChar8*) argv[i];
 140
 141         if (!FcFileIsDir (file))
 142             FcFileScan (fs, NULL, NULL, NULL, file, FcTrue);
 143         else
 144         {
 145             FcStrSet *dirs = FcStrSetCreate ();
 146             FcStrList *strlist = FcStrListCreate (dirs);
 147             do
 148             {
 149                 FcDirScan (fs, dirs, NULL, NULL, file, FcTrue);
 150             }
 151             while ((file = FcStrListNext (strlist)));
 152             FcStrListDone (strlist);
 153             FcStrSetDestroy (dirs);
 154         }
 155     }
 156
 157     for (i = 0; i < fs->nfont; i++)
 158     {
 159         FcPattern *pat;
 160
 161         pat = fs->fonts[i];
 162
 163         if (format)
 164         {
 165             FcChar8 *s;
 166
 167             s = FcPatternFormat (pat, format);
 168             if (s)
 169             {
 170                 printf ("%s", s);
 171                 free (s);
 172             }
 173         }
 174         else
 175         {
 176             FcPatternPrint (pat);
 177         }
 178     }
 179
 180     FcFontSetDestroy (fs);
 181
 182     FcFini ();
 183     return i > 0 ? 0 : 1;
 184 }