fc-pattern/fc-pattern.c

   1 /*
   2  * fontconfig/fc-pattern/fc-pattern.c
   3  *
   4  * Copyright © 2003 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  * 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 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #else
  28 #ifdef linux
  29 #define HAVE_GETOPT_LONG 1
  30 #endif
  31 #define HAVE_GETOPT 1
  32 #endif
  33
  34 #include <fontconfig/fontconfig.h>
  35 #include <stdio.h>
  36 #include <unistd.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39
  40 #ifndef HAVE_GETOPT
  41 #define HAVE_GETOPT 0
  42 #endif
  43 #ifndef HAVE_GETOPT_LONG
  44 #define HAVE_GETOPT_LONG 0
  45 #endif
  46
  47 #if HAVE_GETOPT_LONG
  48 #undef  _GNU_SOURCE
  49 #define _GNU_SOURCE
  50 #include <getopt.h>
  51 static const struct option longopts[] = {
  52     {"config", 0, 0, 'c'},
  53     {"default", 0, 0, 'd'},
  54     {"format", 1, 0, 'f'},
  55     {"version", 0, 0, 'V'},
  56     {"help", 0, 0, 'h'},
  57     {NULL,0,0,0},
  58 };
  59 #else
  60 #if HAVE_GETOPT
  61 extern char *optarg;
  62 extern int optind, opterr, optopt;
  63 #endif
  64 #endif
  65
  66 static void
  67 usage (char *program, int error)
  68 {
  69     FILE *file = error ? stderr : stdout;
  70 #if HAVE_GETOPT_LONG
  71     fprintf (file, "usage: %s [-cdVh] [-f FORMAT] [--config] [--default] [--verbose] [--format=FORMAT] [--version] [--help] [pattern] {element...}\n",
  72              program);
  73 #else
  74     fprintf (file, "usage: %s [-cdVh] [-f FORMAT] [pattern] {element...}\n",
  75              program);
  76 #endif
  77     fprintf (file, "List best font matching [pattern]\n");
  78     fprintf (file, "\n");
  79 #if HAVE_GETOPT_LONG
  80     fprintf (file, "  -c, --config         perform config substitution on pattern\n");
  81     fprintf (file, "  -d, -default         perform default substitution on pattern\n");
  82     fprintf (file, "  -f, --format=FORMAT  use the given output format\n");
  83     fprintf (file, "  -V, --version        display font config version and exit\n");
  84     fprintf (file, "  -h, --help           display this help and exit\n");
  85 #else
  86     fprintf (file, "  -c,        (config)  perform config substitution on pattern\n");
  87     fprintf (file, "  -d,        (default) perform default substitution on pattern\n");
  88     fprintf (file, "  -f FORMAT  (format)  use the given output format\n");
  89     fprintf (file, "  -V         (version) display font config version and exit\n");
  90     fprintf (file, "  -h         (help)    display this help and exit\n");
  91 #endif
  92     exit (error);
  93 }
  94
  95 int
  96 main (int argc, char **argv)
  97 {
  98     int         do_config = 0, do_default = 0;
  99     FcChar8     *format = NULL;
 100     int         i;
 101     FcObjectSet *os = 0;
 102     FcPattern   *pat;
 103 #if HAVE_GETOPT_LONG || HAVE_GETOPT
 104     int         c;
 105
 106 #if HAVE_GETOPT_LONG
 107     while ((c = getopt_long (argc, argv, "cdf:Vh", longopts, NULL)) != -1)
 108 #else
 109     while ((c = getopt (argc, argv, "cdf:Vh")) != -1)
 110 #endif
 111     {
 112         switch (c) {
 113         case 'c':
 114             do_config = 1;
 115             break;
 116         case 'd':
 117             do_default = 1;
 118             break;
 119         case 'f':
 120             format = (FcChar8 *) strdup (optarg);
 121             break;
 122         case 'V':
 123             fprintf (stderr, "fontconfig version %d.%d.%d\n",
 124                      FC_MAJOR, FC_MINOR, FC_REVISION);
 125             exit (0);
 126         case 'h':
 127             usage (argv[0], 0);
 128         default:
 129             usage (argv[0], 1);
 130         }
 131     }
 132     i = optind;
 133 #else
 134     i = 1;
 135 #endif
 136
 137     if (!FcInit ())
 138     {
 139         fprintf (stderr, "Can't init font config library\n");
 140         return 1;
 141     }
 142     if (argv[i])
 143     {
 144         pat = FcNameParse ((FcChar8 *) argv[i]);
 145         while (argv[++i])
 146         {
 147             if (!os)
 148                 os = FcObjectSetCreate ();
 149             FcObjectSetAdd (os, argv[i]);
 150         }
 151     }
 152     else
 153         pat = FcPatternCreate ();
 154
 155     if (!pat)
 156         return 1;
 157
 158     if (do_config)
 159       FcConfigSubstitute (0, pat, FcMatchPattern);
 160     if (do_default)
 161       FcDefaultSubstitute (pat);
 162
 163     if (os)
 164     {
 165       FcPattern *new;
 166       new = FcPatternFilter (pat, os);
 167       FcPatternDestroy (pat);
 168       pat = new;
 169     }
 170
 171     if (format)
 172     {
 173         FcChar8 *s;
 174
 175         s = FcPatternFormat (pat, format);
 176         if (s)
 177         {
 178             printf ("%s", s);
 179             free (s);
 180         }
 181     }
 182     else
 183     {
 184         FcPatternPrint (pat);
 185     }
 186
 187     FcPatternDestroy (pat);
 188
 189     if (os)
 190         FcObjectSetDestroy (os);
 191
 192     FcFini ();
 193
 194     return 0;
 195 }