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/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* Copyright © 2003, 2004 Christian Persch
*
* This file is part of Epiphany.
*
* Epiphany 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 3 of the License, or
* (at your option) any later version.
*
* Epiphany 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 Epiphany. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "ephy-langs.h"
#include "gnome-languages.h"
#include <string.h>
/* 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 < (int)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 < (int)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 < (int)array->len - 1; i++) {
for (j = (int)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 = (int)array->len - 2; i >= 0; i--) {
for (j = (int)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;
char *lang;
int i;
languages = g_get_language_names ();
g_assert (languages != NULL);
for (i = 0; languages[i] != NULL; i++) {
if (strstr (languages[i], ".") == 0 &&
strstr (languages[i], "@") == 0 &&
strcmp (languages[i], "C") != 0) {
/* change '_' to '-' */
lang = g_strdelimit (g_strdup (languages[i]), "_", '-');
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 **)(void *)g_array_free (array, FALSE);
}
char **
ephy_langs_normalize_languages (char **languages)
{
int i;
GPtrArray *langs;
langs = g_ptr_array_new ();
for (i = 0; languages && languages[i]; i++) {
if (!strcmp (languages[i], "system")) {
char **sys_langs = ephy_langs_get_languages ();
int j;
for (j = 0; sys_langs && sys_langs[j]; j++)
g_ptr_array_add (langs, g_strdelimit (g_strdup (sys_langs[i]), "-", '_'));
g_strfreev (sys_langs);
} else
g_ptr_array_add (langs, g_strdelimit (g_strdup (languages[i]), "-", '_'));
}
g_ptr_array_add (langs, NULL);
return (char **)g_ptr_array_free (langs, FALSE);
}
char *
ephy_langs_normalize_locale (const char *locale)
{
char *result = g_strdup (locale);
/* The result we store in prefs looks like es-ES or en-US. We don't
* store codeset (not used in Accept-Langs) and we store with hyphen
* instead of underscore (ditto). So here we just uppercase the
* country code, converting e.g. es-es to es-ES. We have to do this
* because older versions of Epiphany stored locales as entirely
* lowercase.
*/
for (char *p = strchr (result, '-'); p != NULL && *p != '\0'; p++)
*p = g_ascii_toupper (*p);
return result;
}
char *
ephy_langs_language_for_locale (const char *locale)
{
g_autoptr (GString) string = g_string_new (locale);
/* Before calling gnome_get_language_from_locale() we have to convert
* from web locales (e.g. es-ES) to UNIX (e.g. es_ES.UTF-8).
*/
g_strdelimit (string->str, "-", '_');
g_string_append (string, ".UTF-8");
return gnome_get_language_from_locale (string->str, string->str);
}
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