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fontconfig/fc-cat/fc-cat.c

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/*
* fontconfig/fc-cat/fc-cat.c
*
* Copyright © 2002 Keith Packard
*
* 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 "../src/fcarch.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#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>
const struct option longopts[] = {
{"version", 0, 0, 'V'},
{"verbose", 0, 0, 'v'},
{"recurse", 0, 0, 'r'},
{"help", 0, 0, 'h'},
{NULL,0,0,0},
};
#else
#if HAVE_GETOPT
extern char *optarg;
extern int optind, opterr, optopt;
#endif
#endif
/*
* POSIX has broken stdio so that getc must do thread-safe locking,
* this is a serious performance problem for applications doing large
* amounts of IO with getc (as is done here). If available, use
* the getc_unlocked varient instead.
*/
#if defined(getc_unlocked) || defined(_IO_getc_unlocked)
#define GETC(f) getc_unlocked(f)
#define PUTC(c,f) putc_unlocked(c,f)
#else
#define GETC(f) getc(f)
#define PUTC(c,f) putc(c,f)
#endif
static FcBool
write_chars (FILE *f, const FcChar8 *chars)
{
FcChar8 c;
while ((c = *chars++))
{
switch (c) {
case '"':
case '\\':
if (PUTC ('\\', f) == EOF)
return FcFalse;
/* fall through */
default:
if (PUTC (c, f) == EOF)
return FcFalse;
}
}
return FcTrue;
}
static FcBool
write_ulong (FILE *f, unsigned long t)
{
int pow;
unsigned long temp, digit;
temp = t;
pow = 1;
while (temp >= 10)
{
temp /= 10;
pow *= 10;
}
temp = t;
while (pow)
{
digit = temp / pow;
if (PUTC ((char) digit + '0', f) == EOF)
return FcFalse;
temp = temp - pow * digit;
pow = pow / 10;
}
return FcTrue;
}
static FcBool
write_int (FILE *f, int i)
{
return write_ulong (f, (unsigned long) i);
}
static FcBool
write_string (FILE *f, const FcChar8 *string)
{
if (PUTC ('"', f) == EOF)
return FcFalse;
if (!write_chars (f, string))
return FcFalse;
if (PUTC ('"', f) == EOF)
return FcFalse;
return FcTrue;
}
static void
usage (char *program, int error)
{
FILE *file = error ? stderr : stdout;
#if HAVE_GETOPT_LONG
fprintf (file, "usage: %s [-rv] [--recurse] [--verbose] [*-%s" FC_CACHE_SUFFIX "|directory]...\n",
program, FC_ARCHITECTURE);
fprintf (file, " %s [-Vh] [--version] [--help]\n", program);
#else
fprintf (file, "usage: %s [-rvVh] [*-%s" FC_CACHE_SUFFIX "|directory]...\n",
program, FC_ARCHITECTURE);
#endif
fprintf (file, "Reads font information cache from:\n");
fprintf (file, " 1) specified fontconfig cache file\n");
fprintf (file, " 2) related to a particular font directory\n");
fprintf (file, "\n");
#if HAVE_GETOPT_LONG
fprintf (file, " -r, --recurse recurse into subdirectories\n");
fprintf (file, " -v, --verbose be verbose\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, " -r (recurse) recurse into subdirectories\n");
fprintf (file, " -v (verbose) be verbose\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);
}
/*
* return the path from the directory containing 'cache' to 'file'
*/
static const FcChar8 *
file_base_name (const FcChar8 *cache, const FcChar8 *file)
{
int cache_len = strlen ((char *) cache);
if (!strncmp ((char *) cache, (char *) file, cache_len) && file[cache_len] == '/')
return file + cache_len + 1;
return file;
}
#define FC_FONT_FILE_DIR ((FcChar8 *) ".dir")
static FcBool
cache_print_set (FcFontSet *set, FcStrSet *dirs, const FcChar8 *base_name, FcBool verbose)
{
FcChar8 *dir;
const FcChar8 *base;
int n;
int ndir = 0;
FcStrList *list;
list = FcStrListCreate (dirs);
if (!list)
goto bail2;
while ((dir = FcStrListNext (list)))
{
base = file_base_name (base_name, dir);
if (!write_string (stdout, base))
goto bail3;
if (PUTC (' ', stdout) == EOF)
goto bail3;
if (!write_int (stdout, 0))
goto bail3;
if (PUTC (' ', stdout) == EOF)
goto bail3;
if (!write_string (stdout, FC_FONT_FILE_DIR))
goto bail3;
if (PUTC ('\n', stdout) == EOF)
goto bail3;
ndir++;
}
for (n = 0; n < set->nfont; n++)
{
FcPattern *font = set->fonts[n];
FcChar8 *s;
s = FcPatternFormat (font, (const FcChar8 *) "%{=fccat}\n");
if (s)
{
printf ("%s", s);
free (s);
}
}
if (verbose && !set->nfont && !ndir)
printf ("<empty>\n");
FcStrListDone (list);
return FcTrue;
bail3:
FcStrListDone (list);
bail2:
return FcFalse;
}
int
main (int argc, char **argv)
{
int i;
int ret = 0;
FcFontSet *fs;
FcStrSet *dirs;
FcStrSet *args = NULL;
FcStrList *arglist;
FcCache *cache;
FcConfig *config;
FcChar8 *arg;
int verbose = 0;
int recurse = 0;
FcBool first = FcTrue;
#if HAVE_GETOPT_LONG || HAVE_GETOPT
int c;
#if HAVE_GETOPT_LONG
while ((c = getopt_long (argc, argv, "Vvrh", longopts, NULL)) != -1)
#else
while ((c = getopt (argc, argv, "Vvrh")) != -1)
#endif
{
switch (c) {
case 'V':
fprintf (stderr, "fontconfig version %d.%d.%d\n",
FC_MAJOR, FC_MINOR, FC_REVISION);
exit (0);
case 'v':
verbose++;
break;
case 'r':
recurse++;
break;
case 'h':
usage (argv[0], 0);
default:
usage (argv[0], 1);
}
}
i = optind;
#else
i = 1;
#endif
config = FcInitLoadConfig ();
if (!config)
{
fprintf (stderr, "%s: Can't init font config library\n", argv[0]);
return 1;
}
FcConfigSetCurrent (config);
args = FcStrSetCreate ();
if (!args)
{
fprintf (stderr, "%s: malloc failure\n", argv[0]);
return 1;
}
if (i < argc)
{
for (; i < argc; i++)
{
if (!FcStrSetAddFilename (args, (const FcChar8 *) argv[i]))
{
fprintf (stderr, "%s: malloc failure\n", argv[0]);
return 1;
}
}
arglist = FcStrListCreate (args);
if (!arglist)
{
fprintf (stderr, "%s: malloc failure\n", argv[0]);
return 1;
}
}
else
{
recurse++;
arglist = FcConfigGetFontDirs (config);
while ((arg = FcStrListNext (arglist)))
if (!FcStrSetAdd (args, arg))
{
fprintf (stderr, "%s: malloc failure\n", argv[0]);
return 1;
}
FcStrListDone (arglist);
}
arglist = FcStrListCreate (args);
if (!arglist)
{
fprintf (stderr, "%s: malloc failure\n", argv[0]);
return 1;
}
while ((arg = FcStrListNext (arglist)))
{
int j;
FcChar8 *cache_file = NULL;
struct stat file_stat;
if (FcFileIsDir (arg))
cache = FcDirCacheLoad (arg, config, &cache_file);
else
cache = FcDirCacheLoadFile (arg, &file_stat);
if (!cache)
{
perror ((char *) arg);
ret++;
continue;
}
dirs = FcStrSetCreate ();
fs = FcCacheCopySet (cache);
for (j = 0; j < FcCacheNumSubdir (cache); j++)
{
FcStrSetAdd (dirs, FcCacheSubdir (cache, j));
if (recurse)
FcStrSetAdd (args, FcCacheSubdir (cache, j));
}
if (verbose)
{
if (!first)
printf ("\n");
printf ("Directory: %s\nCache: %s\n--------\n",
FcCacheDir(cache), cache_file ? cache_file : arg);
first = FcFalse;
}
cache_print_set (fs, dirs, FcCacheDir (cache), verbose);
FcStrSetDestroy (dirs);
FcFontSetDestroy (fs);
FcDirCacheUnload (cache);
if (cache_file)
FcStrFree (cache_file);
}
FcFini ();
return 0;
}
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