fc-match/fc-match.c

   1 /*
   2  * fontconfig/fc-match/fc-match.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 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 #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     {"sort", 0, 0, 's'},
  53     {"all", 0, 0, 'a'},
  54     {"verbose", 0, 0, 'v'},
  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 [-savVh] [-f FORMAT] [--sort] [--all] [--verbose] [--format=FORMAT] [--version] [--help] [pattern] {element...}\n",
  73              program);
  74 #else
  75     fprintf (file, "usage: %s [-savVh] [-f FORMAT] [pattern] {element...}\n",
  76              program);
  77 #endif
  78     fprintf (file, "List best font matching [pattern]\n");
  79     fprintf (file, "\n");
  80 #if HAVE_GETOPT_LONG
  81     fprintf (file, "  -s, --sort           display sorted list of matches\n");
  82     fprintf (file, "  -a, --all            display unpruned sorted list of matches\n");
  83     fprintf (file, "  -v, --verbose        display entire font pattern verbosely\n");
  84     fprintf (file, "  -f, --format=FORMAT  use the given output format\n");
  85     fprintf (file, "  -V, --version        display font config version and exit\n");
  86     fprintf (file, "  -h, --help           display this help and exit\n");
  87 #else
  88     fprintf (file, "  -s,        (sort)    display sorted list of matches\n");
  89     fprintf (file, "  -a         (all)     display unpruned sorted list of matches\n");
  90     fprintf (file, "  -v         (verbose) display entire font pattern verbosely\n");
  91     fprintf (file, "  -f FORMAT  (format)  use the given output format\n");
  92     fprintf (file, "  -V         (version) display font config version and exit\n");
  93     fprintf (file, "  -h         (help)    display this help and exit\n");
  94 #endif
  95     exit (error);
  96 }
  97
  98 int
  99 main (int argc, char **argv)
 100 {
 101     int         verbose = 0;
 102     int         sort = 0, all = 0;
 103     FcChar8     *format = NULL;
 104     int         i;
 105     FcObjectSet *os = 0;
 106     FcFontSet   *fs;
 107     FcPattern   *pat;
 108     FcResult    result;
 109 #if HAVE_GETOPT_LONG || HAVE_GETOPT
 110     int         c;
 111
 112 #if HAVE_GETOPT_LONG
 113     while ((c = getopt_long (argc, argv, "asvf:Vh", longopts, NULL)) != -1)
 114 #else
 115     while ((c = getopt (argc, argv, "asvf:Vh")) != -1)
 116 #endif
 117     {
 118         switch (c) {
 119         case 'a':
 120             all = 1;
 121             break;
 122         case 's':
 123             sort = 1;
 124             break;
 125         case 'v':
 126             verbose = 1;
 127             break;
 128         case 'f':
 129             format = (FcChar8 *) strdup (optarg);
 130             break;
 131         case 'V':
 132             fprintf (stderr, "fontconfig version %d.%d.%d\n",
 133                      FC_MAJOR, FC_MINOR, FC_REVISION);
 134             exit (0);
 135         case 'h':
 136             usage (argv[0], 0);
 137         default:
 138             usage (argv[0], 1);
 139         }
 140     }
 141     i = optind;
 142 #else
 143     i = 1;
 144 #endif
 145
 146     if (!FcInit ())
 147     {
 148         fprintf (stderr, "Can't init font config library\n");
 149         return 1;
 150     }
 151     if (argv[i])
 152     {
 153         pat = FcNameParse ((FcChar8 *) argv[i]);
 154         while (argv[++i])
 155         {
 156             if (!os)
 157                 os = FcObjectSetCreate ();
 158             FcObjectSetAdd (os, argv[i]);
 159         }
 160     }
 161     else
 162         pat = FcPatternCreate ();
 163
 164     if (!pat)
 165         return 1;
 166
 167     FcConfigSubstitute (0, pat, FcMatchPattern);
 168     FcDefaultSubstitute (pat);
 169
 170     fs = FcFontSetCreate ();
 171
 172     if (sort || all)
 173     {
 174         FcFontSet       *font_patterns;
 175         int     j;
 176         font_patterns = FcFontSort (0, pat, all ? FcFalse : FcTrue, 0, &result);
 177
 178         if (!font_patterns || font_patterns->nfont == 0)
 179         {
 180             fputs("No fonts installed on the system\n", stderr);
 181             return 1;
 182         }
 183         for (j = 0; j < font_patterns->nfont; j++)
 184         {
 185             FcPattern  *font_pattern;
 186
 187             font_pattern = FcFontRenderPrepare (NULL, pat, font_patterns->fonts[j]);
 188             if (font_pattern)
 189                 FcFontSetAdd (fs, font_pattern);
 190         }
 191
 192         FcFontSetSortDestroy (font_patterns);
 193     }
 194     else
 195     {
 196         FcPattern   *match;
 197         match = FcFontMatch (0, pat, &result);
 198         if (match)
 199             FcFontSetAdd (fs, match);
 200     }
 201     FcPatternDestroy (pat);
 202
 203     if (!format)
 204     {
 205         if (os)
 206             format = "%{=unparse}\n";
 207         else
 208             format = "%{=fcmatch}\n";
 209     }
 210
 211     if (fs)
 212     {
 213         int     j;
 214
 215         for (j = 0; j < fs->nfont; j++)
 216         {
 217             FcPattern *font;
 218
 219             font = FcPatternFilter (fs->fonts[j], os);
 220
 221             if (verbose)
 222             {
 223                 FcPatternPrint (font);
 224             }
 225             else
 226             {
 227                 FcChar8 *s;
 228
 229                 s = FcPatternFormat (font, format);
 230                 if (s)
 231                 {
 232                     printf ("%s", s);
 233                     free (s);
 234                 }
 235             }
 236
 237             FcPatternDestroy (font);
 238         }
 239         FcFontSetDestroy (fs);
 240     }
 241
 242     if (os)
 243         FcObjectSetDestroy (os);
 244
 245     FcFini ();
 246
 247     return 0;
 248 }