File: fc-query.c

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/*
 * fontconfig/fc-query/fc-query.c
 *
 * Copyright © 2003 Keith Packard
 * Copyright © 2008 Red Hat, Inc.
 * Red Hat Author(s): Behdad Esfahbod
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of the author(s) not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  The authors make no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#else
#ifdef linux
#define HAVE_GETOPT_LONG 1
#endif
#define HAVE_GETOPT 1
#endif

#include <fontconfig/fontconfig.h>
#include <fontconfig/fcfreetype.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>

#ifdef ENABLE_NLS
#include <libintl.h>
#define _(x)		(dgettext(GETTEXT_PACKAGE, x))
#else
#define dgettext(d, s)	(s)
#define _(x)		(x)
#endif

#ifndef HAVE_GETOPT
#define HAVE_GETOPT 0
#endif
#ifndef HAVE_GETOPT_LONG
#define HAVE_GETOPT_LONG 0
#endif

#if HAVE_GETOPT_LONG
#undef  _GNU_SOURCE
#define _GNU_SOURCE
#include <getopt.h>
static const struct option longopts[] = {
    {"index", 1, 0, 'i'},
    {"brief", 0, 0, 'b'},
    {"format", 1, 0, 'f'},
    {"version", 0, 0, 'V'},
    {"help", 0, 0, 'h'},
    {NULL,0,0,0},
};
#else
#if HAVE_GETOPT
extern char *optarg;
extern int optind, opterr, optopt;
#endif
#endif

static void
usage (char *program, int error)
{
    FILE *file = error ? stderr : stdout;
#if HAVE_GETOPT_LONG
    fprintf (file, _("usage: %s [-bVh] [-i index] [-f FORMAT] [--index index] [--brief] [--format FORMAT] [--version] [--help] font-file...\n"),
	     program);
#else
    fprintf (file, _("usage: %s [-bVh] [-i index] [-f FORMAT] font-file...\n"),
	     program);
#endif
    fprintf (file, _("Query font files and print resulting pattern(s)\n"));
    fprintf (file, "\n");
#if HAVE_GETOPT_LONG
    fprintf (file, _("  -i, --index INDEX    display the INDEX face of each font file only\n"));
    fprintf (file, _("  -b, --brief          display font pattern briefly\n"));
    fprintf (file, _("  -f, --format=FORMAT  use the given output format\n"));
    fprintf (file, _("  -V, --version        display font config version and exit\n"));
    fprintf (file, _("  -h, --help           display this help and exit\n"));
#else
    fprintf (file, _("  -i INDEX   (index)         display the INDEX face of each font file only\n"));
    fprintf (file, _("  -b         (brief)         display font pattern briefly\n"));
    fprintf (file, _("  -f FORMAT  (format)        use the given output format\n"));
    fprintf (file, _("  -V         (version)       display font config version and exit\n"));
    fprintf (file, _("  -h         (help)          display this help and exit\n"));
#endif
    exit (error);
}

int
main (int argc, char **argv)
{
    unsigned int id = (unsigned int) -1;
    int         brief = 0;
    FcFontSet   *fs;
    FcChar8     *format = NULL;
    int		err = 0;
    int		i;
#if HAVE_GETOPT_LONG || HAVE_GETOPT
    int		c;

    setlocale (LC_ALL, "");
#if HAVE_GETOPT_LONG
    while ((c = getopt_long (argc, argv, "i:bf:Vh", longopts, NULL)) != -1)
#else
    while ((c = getopt (argc, argv, "i:bf:Vh")) != -1)
#endif
    {
	switch (c) {
	case 'i':
	    id = (unsigned int) strtol (optarg, NULL, 0); /* strtol() To handle -1. */
	    break;
	case 'b':
	    brief = 1;
	    break;
	case 'f':
	    format = (FcChar8 *) strdup (optarg);
	    break;
	case 'V':
	    fprintf (stderr, "fontconfig version %d.%d.%d\n",
		     FC_MAJOR, FC_MINOR, FC_REVISION);
	    exit (0);
	case 'h':
	    usage (argv[0], 0);
	default:
	    usage (argv[0], 1);
	}
    }
    i = optind;
#else
    i = 1;
#endif

    if (i == argc)
	usage (argv[0], 1);

    fs = FcFontSetCreate ();

    for (; i < argc; i++)
    {
	if (!FcFreeTypeQueryAll ((FcChar8*) argv[i], id, NULL, NULL, fs))
	{
	    fprintf (stderr, _("Can't query face %u of font file %s\n"), id, argv[i]);
	    err = 1;
	}
    }

    for (i = 0; i < fs->nfont; i++)
    {
	FcPattern *pat = fs->fonts[i];

	if (brief)
	{
	    FcPatternDel (pat, FC_CHARSET);
	    FcPatternDel (pat, FC_LANG);
	}

	if (format)
	{
	    FcChar8 *s;

	    s = FcPatternFormat (pat, format);
	    if (s)
	    {
		printf ("%s", s);
		FcStrFree (s);
	    }
	}
	else
	{
	    FcPatternPrint (pat);
	}
    }

    FcFontSetDestroy (fs);

    FcFini ();
    return err;
}