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 <stdlib.h>
37#include <string.h>
38#include <locale.h>
39
40#ifdef HAVE_UNISTD_H
41#include <unistd.h>
42#endif
43
44#ifdef ENABLE_NLS
45#include <libintl.h>
46#define _(x)		(dgettext(GETTEXT_PACKAGE, x))
47#else
48#define dgettext(d, s)	(s)
49#define _(x)		(x)
50#endif
51
52#ifndef HAVE_GETOPT
53#define HAVE_GETOPT 0
54#endif
55#ifndef HAVE_GETOPT_LONG
56#define HAVE_GETOPT_LONG 0
57#endif
58
59#if HAVE_GETOPT_LONG
60#undef  _GNU_SOURCE
61#define _GNU_SOURCE
62#include <getopt.h>
63static const struct option longopts[] = {
64    {"config", 0, 0, 'c'},
65    {"default", 0, 0, 'd'},
66    {"format", 1, 0, 'f'},
67    {"version", 0, 0, 'V'},
68    {"help", 0, 0, 'h'},
69    {NULL,0,0,0},
70};
71#else
72#if HAVE_GETOPT
73extern char *optarg;
74extern int optind, opterr, optopt;
75#endif
76#endif
77
78static void
79usage (char *program, int error)
80{
81    FILE *file = error ? stderr : stdout;
82#if HAVE_GETOPT_LONG
83    fprintf (file, _("usage: %s [-cdVh] [-f FORMAT] [--config] [--default] [--verbose] [--format=FORMAT] [--version] [--help] [pattern] {element...}\n"),
84	     program);
85#else
86    fprintf (file, _("usage: %s [-cdVh] [-f FORMAT] [pattern] {element...}\n"),
87	     program);
88#endif
89    fprintf (file, _("List best font matching [pattern]\n"));
90    fprintf (file, "\n");
91#if HAVE_GETOPT_LONG
92    fprintf (file, _("  -c, --config         perform config substitution on pattern\n"));
93    fprintf (file, _("  -d, --default        perform default substitution on pattern\n"));
94    fprintf (file, _("  -f, --format=FORMAT  use the given output format\n"));
95    fprintf (file, _("  -V, --version        display font config version and exit\n"));
96    fprintf (file, _("  -h, --help           display this help and exit\n"));
97#else
98    fprintf (file, _("  -c,        (config)  perform config substitution on pattern\n"));
99    fprintf (file, _("  -d,        (default) perform default substitution on pattern\n"));
100    fprintf (file, _("  -f FORMAT  (format)  use the given output format\n"));
101    fprintf (file, _("  -V         (version) display font config version and exit\n"));
102    fprintf (file, _("  -h         (help)    display this help and exit\n"));
103#endif
104    exit (error);
105}
106
107int
108main (int argc, char **argv)
109{
110    int		do_config = 0, do_default = 0;
111    FcChar8     *format = NULL;
112    int		i;
113    FcObjectSet *os = 0;
114    FcPattern   *pat;
115#if HAVE_GETOPT_LONG || HAVE_GETOPT
116    int		c;
117
118    setlocale (LC_ALL, "");
119#if HAVE_GETOPT_LONG
120    while ((c = getopt_long (argc, argv, "cdf:Vh", longopts, NULL)) != -1)
121#else
122    while ((c = getopt (argc, argv, "cdf:Vh")) != -1)
123#endif
124    {
125	switch (c) {
126	case 'c':
127	    do_config = 1;
128	    break;
129	case 'd':
130	    do_default = 1;
131	    break;
132	case 'f':
133	    format = (FcChar8 *) strdup (optarg);
134	    break;
135	case 'V':
136	    fprintf (stderr, "fontconfig version %d.%d.%d\n",
137		     FC_MAJOR, FC_MINOR, FC_REVISION);
138	    exit (0);
139	case 'h':
140	    usage (argv[0], 0);
141	default:
142	    usage (argv[0], 1);
143	}
144    }
145    i = optind;
146#else
147    i = 1;
148#endif
149
150    if (argv[i])
151    {
152	pat = FcNameParse ((FcChar8 *) argv[i]);
153	if (!pat)
154	{
155	    fprintf (stderr, _("Unable to parse the pattern\n"));
156	    return 1;
157	}
158	while (argv[++i])
159	{
160	    if (!os)
161		os = FcObjectSetCreate ();
162	    FcObjectSetAdd (os, argv[i]);
163	}
164    }
165    else
166	pat = FcPatternCreate ();
167
168    if (!pat)
169	return 1;
170
171    if (do_config)
172      FcConfigSubstitute (0, pat, FcMatchPattern);
173    if (do_default)
174      FcDefaultSubstitute (pat);
175
176    if (os)
177    {
178      FcPattern *new;
179      new = FcPatternFilter (pat, os);
180      FcPatternDestroy (pat);
181      pat = new;
182    }
183
184    if (format)
185    {
186	FcChar8 *s;
187
188	s = FcPatternFormat (pat, format);
189	if (s)
190	{
191	    printf ("%s", s);
192	    FcStrFree (s);
193	}
194    }
195    else
196    {
197	FcPatternPrint (pat);
198    }
199
200    FcPatternDestroy (pat);
201
202    if (os)
203	FcObjectSetDestroy (os);
204
205    FcFini ();
206
207    return 0;
208}
209