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// I18n.hh for Fluxbox Window Manager
// Copyright (c) 2001 - 2006 Henrik Kinnunen (fluxgen at fluxbox dot org)
//
// I18n.cc for Blackbox - an X11 Window manager
// Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
/* Note:
* A good reference for the older non-gettext style I18n
* functions is the "Locale tutorial"
* Written by Patrick D'Cruze (pdcruze@orac.iinet.com.au)
* A copy of which is available (at the time of writing) here:
* http://www.kulichki.com/moshkow/CYRILLIC/locale-tutorial-0_8.txt
*/
//use GNU extensions
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif // _GNU_SOURCE
#include "I18n.hh"
#include "FileUtil.hh"
#include <X11/Xlocale.h>
#ifdef HAVE_CSTDLIB
#include <cstdlib>
#else
#include <stdlib.h>
#endif
#ifdef HAVE_CSTRING
#include <cstring>
#else
#include <string.h>
#endif
#ifdef HAVE_CSTDIO
#include <cstdio>
#else
#include <stdio.h>
#endif
#include <iostream>
using std::cerr;
using std::endl;
using std::string;
namespace FbTk {
void NLSInit(const char *catalog) {
FbStringUtil::init();
I18n *i18n = I18n::instance();
i18n->openCatalog(catalog);
}
I18n::I18n():m_multibyte(false), m_utf8_translate(false), m_catalog_fd((nl_catd)(-1)) {
#if defined(HAVE_SETLOCALE) && defined(NLS)
//make sure we don't get 0 to m_locale string
char *temp = setlocale(LC_MESSAGES, "");
m_locale = ( temp ? temp : "");
if (m_locale.empty()) {
cerr<<"Warning: Failed to set locale, reverting to \"C\""<<endl;
#endif // defined(HAVE_SETLOCALE) && defined(NLS)
m_locale = "C";
#if defined(HAVE_SETLOCALE) && defined(NLS)
} else {
setlocale(LC_TIME, "");
// MB_CUR_MAX returns the size of a char in the current locale
if (MB_CUR_MAX > 1)
m_multibyte = true;
// truncate any encoding off the end of the locale
// remove everything after @
string::size_type index = m_locale.find('@');
if (index != string::npos)
m_locale.erase(index); //erase all characters starting at index
// remove everything before =
index = m_locale.find('=');
if (index != string::npos)
m_locale.erase(0,index+1); //erase all characters starting up to index
}
#endif // defined(HAVE_SETLOCALE) && defined(NLS)
}
I18n::~I18n() {
#if defined(NLS) && defined(HAVE_CATCLOSE)
if (m_catalog_fd != (nl_catd)-1)
catclose(m_catalog_fd);
#endif // HAVE_CATCLOSE
}
I18n *I18n::instance() {
static I18n singleton; //singleton object
return &singleton;
}
void I18n::openCatalog(const char *catalog) {
#if defined(NLS) && defined(HAVE_CATOPEN)
string catalog_filename = LOCALEPATH;
catalog_filename += '/';
catalog_filename += m_locale;
catalog_filename += '/';
catalog_filename += catalog;
if (!FileUtil::isRegularFile(catalog_filename.c_str()) && m_locale != "C" && FbStringUtil::haveUTF8()) {
// try the UTF-8 catalog, this also picks up situations where
// the codeset somehow isn't specified
// remove everything after @
string::size_type index = m_locale.find('.');
// erase all characters starting at index
if (index != string::npos)
m_locale.erase(index);
m_locale.append(".UTF-8");
m_utf8_translate = true;
catalog_filename = LOCALEPATH;
catalog_filename += '/';
catalog_filename += m_locale;
catalog_filename += '/';
catalog_filename += catalog;
}
#ifdef MCLoadBySet
m_catalog_fd = catopen(catalog_filename.c_str(), MCLoadBySet);
#else // !MCLoadBySet
m_catalog_fd = catopen(catalog_filename.c_str(), NL_CAT_LOCALE);
#endif // MCLoadBySet
if (m_catalog_fd == (nl_catd)-1) {
cerr<<"Warning: Failed to open file("<<catalog_filename<<")"<<endl;
cerr<<"for translation, using default messages."<<endl;
}
#else // !HAVE_CATOPEN
m_catalog_fd = (nl_catd)-1;
#endif // HAVE_CATOPEN
}
// Translate_FB means it'll become an FbString that goes to X for Fonts,
// No translate means it stays in the local encoding, for printing to the
// console.
FbString I18n::getMessage(int set_number, int message_number,
const char *default_message, bool translate_fb) const {
#if defined(NLS) && defined(HAVE_CATGETS)
if (m_catalog_fd != (nl_catd)-1) {
const char *ret = catgets(m_catalog_fd, set_number, message_number, default_message);
// can't translate, leave it in raw ascii (utf-8 compatible)
if (ret == default_message || ret == NULL)
return default_message;
if (!m_utf8_translate && translate_fb)
// Local input, UTF-8 output
return FbStringUtil::LocaleStrToFb(ret);
else if (m_utf8_translate && !translate_fb)
// UTF-8 input, local output
return FbStringUtil::FbStrToLocale(ret);
else
// UTF-8 input, UTF-8 output OR
// local input, local output
return ret;
}
else
#endif // NLS && HAVE_CATGETS
return default_message;
}
} // end namespace FbTk
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