fc-pattern.c revision 6fc018e4 
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 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>
51static 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
61extern char *optarg;
62extern int optind, opterr, optopt;
63#endif
64#endif
65
66static void
67usage (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
95int
96main (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 (argv[i])
138    {
139	pat = FcNameParse ((FcChar8 *) argv[i]);
140	if (!pat)
141	{
142	    fputs ("Unable to parse the pattern\n", stderr);
143	    return 1;
144	}
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	    FcStrFree (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}
196