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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* main.c
* Copyright (C) 2010 Red Hat, Inc.
*
* Authors:
* Akira TAGOH <tagoh@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#include <fontconfig/fontconfig.h>
#include <glib.h>
#include <ft2build.h>
#include FT_FREETYPE_H
/** from fcint.h **/
#define FcCharSetLeaves(c) FcOffsetMember(c,leaves_offset,intptr_t)
#define FcCharSetNumbers(c) FcOffsetMember(c,numbers_offset,FcChar16)
#define FcOffsetMember(s,m,t) FcOffsetToPtr(s,(s)->m,t)
#define FcOffsetToPtr(b,o,t) ((t *) ((intptr_t) (b) + (o)))
struct _FcCharSet {
int ref; /* reference count */
int num; /* size of leaves and numbers arrays */
intptr_t leaves_offset;
intptr_t numbers_offset;
};
typedef struct _FcCharLeaf {
FcChar32 map[256/32];
} FcCharLeaf;
int
main(int argc,
char **argv)
{
gchar *arg_lang = NULL;
gboolean arg_verbose = FALSE;
GOptionContext *ctxt = g_option_context_new(NULL);
GOptionEntry entries[] = {
{"lang", 'l', 0, G_OPTION_ARG_STRING, &arg_lang, "Specify the language to check glyphs from fontconfig orth file", "LANG"},
{"verbose", 'v', 0, G_OPTION_ARG_NONE, &arg_verbose, "more output for debugging", NULL},
{NULL},
};
GError *err = NULL;
gint i, j, k;
GPtrArray *lang_array;
const FcCharSet *charset;
FT_Library ft;
FT_Error fterr;
FT_Face face;
setlocale(LC_ALL, "");
g_option_context_add_main_entries(ctxt, entries, NULL);
if (!g_option_context_parse(ctxt, &argc, &argv, &err)) {
if (err) {
g_print("%s (code: %d)\n",
err->message, err->code);
} else {
g_print("Unknown error on parsing options\n");
}
exit(1);
}
g_option_context_free(ctxt);
if (argc < 2) {
g_print("No font specified.\n");
exit(1);
}
lang_array = g_ptr_array_new();
if (arg_lang == NULL) {
gchar *lang, *s, *p;
lang = setlocale(LC_CTYPE, NULL);
if (lang == NULL || lang[0] == 'C') {
g_print("E: No lang specified nor unable to guess.\n");
exit(1);
}
s = g_strdup(lang);
p = strchr(s, '.');
if (p)
*p = 0;
p = strchr(s, '@');
if (p)
*p = 0;
p = strchr(s, '_');
if (p)
*p = '-';
for (p = s; *p != 0; p++)
*p = g_ascii_tolower(*p);
g_ptr_array_add(lang_array, g_strdup(s));
p = strchr(s, '-');
if (p) {
*p = 0;
g_ptr_array_add(lang_array, g_strdup(s));
}
g_free(s);
} else {
g_ptr_array_add(lang_array, g_strdup(arg_lang));
}
if (arg_verbose) {
g_print("D: entering in the verbose mode\n");
g_print("D: target font filename: %s\n", argv[1]);
g_print("D: target lang: ");
for (i = 0; i < lang_array->len; i++) {
g_print("%s ", (gchar *)g_ptr_array_index(lang_array, i));
}
g_print("\n");
}
FcInit();
fterr = FT_Init_FreeType(&ft);
if (fterr) {
g_print("E: Unable to initialize the FreeType library.\n");
exit(1);
}
fterr = FT_New_Face(ft, argv[1], 0, &face);
if (fterr) {
g_print("E: Unable to obtain the face information for %s\n", argv[1]);
exit(1);
}
for (i = 0; i < lang_array->len; i++) {
FcChar8 *slang = g_ptr_array_index(lang_array, i);
intptr_t *leaves;
FcChar16 *numbers;
g_print("I: checking lang `%s'\n", slang);
charset = FcLangGetCharSet(slang);
if (charset == NULL) {
g_print("W: Unable to obtain charset for lang `%s'\n", slang);
continue;
}
leaves = FcCharSetLeaves (charset);
numbers = FcCharSetNumbers (charset);
for (i = 0; i < charset->num; i++) {
intptr_t leaf_offset = leaves[i];
FcCharLeaf *leaf = FcOffsetToPtr (leaves, leaf_offset, FcCharLeaf);
for (j = 0; j < 256/32; j++) {
FcChar32 x = leaf->map[j];
for (k = 0; k < 32; k++) {
if ((x & 1) != 0) {
gunichar c = (numbers[i] << 8) | (j << 5) | k;
if (FT_Get_Char_Index(face, c) != 0) {
if (arg_verbose)
g_print("I: %x\n", c);
} else {
g_print("W: U+%X [not supported]\n", c);
}
}
x >>= 1;
}
}
}
}
FT_Done_Face(face);
FcFini();
return 0;
}
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