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/*
* Copyright (C) 2003 Christian Persch
*
* 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, 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.
*
* $Id$
*/
#include "config.h"
#include "ephy-langs.h"
#include <glib/gi18n.h>
#include <string.h>
static const EphyFontsLanguageInfo font_languages [] =
{
{ N_("Arabic"), "ar" },
{ N_("Baltic"), "x-baltic" },
{ N_("Central European"), "x-central-euro" },
{ N_("Cyrillic"), "x-cyrillic" },
{ N_("Devanagari"), "x-devanagari" },
{ N_("Greek"), "el" },
{ N_("Hebrew"), "he" },
{ N_("Japanese"), "ja" },
{ N_("Korean"), "ko" },
{ N_("Simplified Chinese"), "zh-CN" },
{ N_("Tamil"), "x-tamil" },
{ N_("Thai"), "th" },
{ N_("Traditional Chinese"), "zh-TW" },
{ N_("Traditional Chinese (Hong Kong)"), "zh-HK" },
{ N_("Turkish"), "tr" },
{ N_("Unicode"), "x-unicode" },
{ N_("Western"), "x-western" }
};
static const guint n_font_languages = G_N_ELEMENTS (font_languages);
const EphyFontsLanguageInfo *
ephy_font_languages (void)
{
return font_languages;
}
guint
ephy_font_n_languages (void)
{
return n_font_languages;
}
/* sanitise the languages list according to the rules for HTTP accept-language
* in RFC 2616, Sect. 14.4
*/
void
ephy_langs_sanitise (GArray *array)
{
char *lang1, *lang2;
int i, j;
/* if we have 'xy-ab' in list but not 'xy', append 'xy' */
for (i = 0; i < array->len; i++)
{
gboolean found = FALSE;
char *dash, *prefix;
lang1 = (char *) g_array_index (array,char *, i);
dash = strchr (lang1, '-');
if (dash == NULL) continue;
for (j = i + 1; j < array->len; j++)
{
lang2 = (char *) g_array_index (array, char *, j);
if (strchr (lang2, '-') == NULL &&
g_str_has_prefix (lang1, lang2))
{
found = TRUE;
}
}
if (found == FALSE)
{
prefix = g_strndup (lang1, dash - lang1);
g_array_append_val (array, prefix);
}
}
/* uniquify */
for (i = 0; i < array->len - 1; i++)
{
for (j = array->len - 1; j > i; j--)
{
lang1 = (char *) g_array_index (array,char *, i);
lang2 = (char *) g_array_index (array, char *, j);
if (strcmp (lang1, lang2) == 0)
{
g_array_remove_index (array, j);
g_free (lang2);
}
}
}
/* move 'xy' code behind all 'xy-ab' codes */
for (i = array->len - 2; i >= 0; i--)
{
for (j = array->len - 1; j > i; j--)
{
lang1 = (char *) g_array_index (array, char *, i);
lang2 = (char *) g_array_index (array, char *, j);
if (strchr (lang1, '-') == NULL &&
strchr (lang2, '-') != NULL &&
g_str_has_prefix (lang2, lang1))
{
g_array_insert_val (array, j + 1, lang1);
g_array_remove_index (array, i);
break;
}
}
}
}
void
ephy_langs_append_languages (GArray *array)
{
const char * const * languages;
const char *system_lang;
char *lang;
int i;
/**
* This is a comma separated list of language ranges, as specified
* by RFC 2616, 14.4.
* Always include the basic language code last.
*
* Examples:
* "pt" translation: "pt"
* "pt_BR" translation: "pt-br,pt"
* "zh_CN" translation: "zh-cn,zh"
* "zh_HK" translation: "zh-hk,zh" or maybe "zh-hk,zh-tw,zh"
*/
system_lang = _("system-language");
/* FIXME: use system_language when given, instead of g_get_language_names () ? */
languages = g_get_language_names ();
g_return_if_fail (languages != NULL);
/* FIXME: maybe just use the first, instead of all of them? */
for (i = 0; languages[i] != NULL; i++)
{
if (strstr (languages[i], ".") == 0 &&
strstr (languages[i], "@") == 0 &&
strcmp (languages[i], "C") != 0)
{
/* change to lowercase and '_' to '-' */
lang = g_strdelimit (g_ascii_strdown
(languages[i], -1), "_", '-');
g_array_append_val (array, lang);
}
}
/* Fallback: add "en" if list is empty */
if (array->len == 0)
{
lang = g_strdup ("en");
g_array_append_val (array, lang);
}
}
char **
ephy_langs_get_languages (void)
{
GArray *array;
array = g_array_new (TRUE, FALSE, sizeof (char *));
ephy_langs_append_languages (array);
ephy_langs_sanitise (array);
return (char **) g_array_free (array, FALSE);
}
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