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/*
LibRCC - base module for language manipulations
Copyright (C) 2005-2008 Suren A. Chilingaryan <csa@dside.dyndns.org>
This program is free software; you can redistribute it and/or modify it
under the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation.
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.
*/
#include <stdio.h>
#include <string.h>
#include "internal.h"
#include "rccconfig.h"
#include "rcclocale.h"
int rccGetLanguageNumber(rcc_context ctx) {
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return 0;
}
return ctx->n_languages;
}
int rccGetClassNumber(rcc_context ctx) {
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return 0;
}
return ctx->n_classes;
}
rcc_language_ptr rccGetLanguagePointer(rcc_context ctx, rcc_language_id language_id) {
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return NULL;
}
if (language_id>=ctx->n_languages) return NULL;
return ctx->languages[language_id];
}
const char *rccGetLanguageName(rcc_context ctx, rcc_language_id language_id) {
rcc_language_ptr language;
language = rccGetLanguagePointer(ctx, language_id);
if (!language) return NULL;
return language->sn;
}
rcc_language_id rccGetLanguageByName(rcc_context ctx, const char *name) {
unsigned int i;
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return (rcc_language_id)-1;
}
if (!name) return (rcc_language_id)-1;
for (i=0;ctx->languages[i];i++)
if (!strcasecmp(ctx->languages[i]->sn, name)) return (rcc_language_id)i;
return (rcc_language_id)-1;
}
int rccCheckLanguageUsability(rcc_context ctx, rcc_language_id language_id) {
rcc_language_config config;
rcc_option_value clo;
rcc_engine_ptr *engines;
rcc_charset *charsets;
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return 0;
}
if (language_id>=ctx->n_languages) return 0;
language_id = rccGetRealLanguage(ctx, language_id);
clo = rccGetOption(ctx, RCC_OPTION_CONFIGURED_LANGUAGES_ONLY);
if (clo) {
config = rccCheckConfig(ctx, (rcc_language_id)language_id);
if ((!config)||(!config->configured)) {
charsets = ctx->languages[language_id]->charsets;
if ((charsets[0])&&(charsets[1])&&(charsets[2])) {
if (clo == 1) {
engines = ctx->languages[language_id]->engines;
if ((!engines[0])||(!engines[1])) return 0;
} else return 0;
}
}
}
return 1;
}
static rcc_language_id rccGetDefaultLanguage(rcc_context ctx) {
unsigned int i;
char stmp[RCC_MAX_LANGUAGE_CHARS+1];
if (ctx->default_language) return ctx->default_language;
if (!rccLocaleGetLanguage(stmp, ctx->locale_variable, RCC_MAX_LANGUAGE_CHARS)) {
for (i=0;ctx->languages[i];i++) {
if (!strcmp(ctx->languages[i]->sn, stmp)) {
if (!rccCheckLanguageUsability(ctx, (rcc_language_id)i)) break;
ctx->default_language = (rcc_language_id)i;
return (rcc_language_id)i;
}
}
}
if (ctx->n_languages>1) return (rcc_language_id)1;
return (rcc_language_id)-1;
}
rcc_language_id rccGetRealLanguage(rcc_context ctx, rcc_language_id language_id) {
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return (rcc_language_id)-1;
}
if (language_id>=ctx->n_languages) return (rcc_language_id)-1;
if (language_id) return language_id;
return rccGetDefaultLanguage(ctx);
}
const char *rccGetRealLanguageName(rcc_context ctx, rcc_language_id language_id) {
language_id = rccGetRealLanguage(ctx, language_id);
if (language_id == (rcc_language_id)-1) return NULL;
return rccGetLanguageName(ctx, language_id);
}
rcc_language_id rccGetSelectedLanguage(rcc_context ctx) {
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return (rcc_language_id)-1;
}
return ctx->current_language;
}
const char *rccGetSelectedLanguageName(rcc_context ctx) {
rcc_language_id language_id;
language_id = rccGetSelectedLanguage(ctx);
if (language_id == (rcc_language_id)-1) return NULL;
return rccGetLanguageName(ctx, language_id);
}
rcc_language_id rccGetCurrentLanguage(rcc_context ctx) {
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return (rcc_language_id)-1;
}
return rccGetRealLanguage(ctx, ctx->current_language);
}
const char *rccGetCurrentLanguageName(rcc_context ctx) {
rcc_language_id language_id;
language_id = rccGetCurrentLanguage(ctx);
if (language_id == (rcc_language_id)-1) return NULL;
return rccGetLanguageName(ctx, language_id);
}
int rccSetLanguage(rcc_context ctx, rcc_language_id language_id) {
rcc_language_config config;
if (!ctx) {
if (rcc_default_ctx) ctx = rcc_default_ctx;
else return -1;
}
if (language_id >= ctx->n_languages) return -1;
if ((!ctx->languages[language_id]->engines[0])||(!ctx->languages[language_id]->charsets[0])) return -2;
if (ctx->current_language != language_id) {
config = rccGetConfig(ctx, language_id);
// NULL is Okey (Off), if (!config) return -1;
rccMutexLock(ctx->mutex);
ctx->configure = 1;
ctx->current_language = language_id;
ctx->current_config = config;
rccMutexUnLock(ctx->mutex);
}
return 0;
}
int rccSetLanguageByName(rcc_context ctx, const char *name) {
rcc_language_id language_id;
language_id = rccGetLanguageByName(ctx, name);
if (language_id == (rcc_language_id)-1) return -1;
return rccSetLanguage(ctx, language_id);
}
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