lyx_mirror/src/Language.h
Jean-Marc Lasgouttes 7a7b9abf1b Tracking correctly available translations (take 2)
The previous scheme of loading all possible translations and checking
whether the work is a bit too much "brute force" and causes problems
on Mac OS X (documents loaded with the wrong language).

Now there is an helper static method in Messages class that checks
whether a readable .mo file exist for the language. There should be an
API in gettext for doing that, but alas it is not possible.

As a consequence the method Language::translated() has been removed,
along with its cache.
2012-09-08 16:59:19 +02:00

177 lines
4.7 KiB
C++

// -*- C++ -*-
/**
* \file Language.h
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
* \author Dekel Tsur
* \author Jürgen Vigna
*
* Full author contact details are available in file CREDITS.
*/
#ifndef LANGUAGE_H
#define LANGUAGE_H
#include "support/docstring.h"
#include <map>
namespace lyx {
namespace support { class FileName; }
class Encoding;
class Lexer;
///
class Language {
public:
///
Language() : rightToLeft_(false) {}
/// LyX language name
std::string const & lang() const { return lang_; }
/// Babel language name
std::string const & babel() const { return babel_; }
/// polyglossia language name
std::string const & polyglossia() const { return polyglossia_name_; }
/// polyglossia language options
std::string const & polyglossiaOpts() const { return polyglossia_opts_; }
/// quotation marks style
std::string const & quoteStyle() const { return quote_style_; }
/// requirement (package, function)
std::string const & requires() const { return requires_; }
/// translatable GUI name
std::string const & display() const { return display_; }
/// is this a RTL language?
bool rightToLeft() const { return rightToLeft_; }
/**
* Translate a string from the layout files that appears in the output.
* It takes the translations from lib/layouttranslations instead of
* the .mo files. This should be used for every translation that
* appears in the exported document, since the output must not depend
* on installed locales. Non-ASCII keys are not translated. */
docstring const translateLayout(std::string const & msg) const;
/// default encoding
Encoding const * encoding() const { return encoding_; }
///
std::string const & encodingStr() const { return encodingStr_; }
/// language code
std::string const & code() const { return code_; }
/// set code (needed for rc.spellchecker_alt_lang)
void setCode(std::string const c) { code_ = c; }
/// language variety (needed by aspell checker)
std::string const & variety() const { return variety_; }
/// set variety (needed for rc.spellchecker_alt_lang)
void setVariety(std::string const v) { variety_ = v; }
/// preamble settings after babel was called
std::string const & babel_postsettings() const { return babel_postsettings_; }
/// preamble settings before babel is called
std::string const & babel_presettings() const { return babel_presettings_; }
/// This language internally sets a font encoding
bool internalFontEncoding() const { return internal_enc_; }
/// This language needs to be passed to babel itself (not the class)
bool asBabelOptions() const { return as_babel_options_; }
///
bool read(Lexer & lex);
///
bool readLanguage(Lexer & lex);
///
typedef std::map<std::string, docstring> TranslationMap;
///
void readLayoutTranslations(TranslationMap const & trans, bool replace);
// for the use in std::map
friend bool operator<(Language const & p, Language const & q);
private:
///
std::string lang_;
///
std::string babel_;
///
std::string polyglossia_name_;
///
std::string polyglossia_opts_;
///
std::string quote_style_;
///
std::string requires_;
///
std::string display_;
///
bool rightToLeft_;
///
std::string encodingStr_;
///
Encoding const * encoding_;
///
std::string code_;
///
std::string variety_;
///
std::string babel_postsettings_;
///
std::string babel_presettings_;
///
bool internal_enc_;
///
bool as_babel_options_;
///
TranslationMap layoutTranslations_;
};
inline bool operator<(Language const & p, Language const & q)
{
return q.lang() > p.lang();
}
class Languages
{
public:
///
typedef std::map<std::string, Language> LanguageList;
///
typedef LanguageList::const_iterator const_iterator;
///
typedef LanguageList::size_type size_type;
///
void read(support::FileName const & filename);
///
void readLayoutTranslations(support::FileName const & filename);
///
Language const * getLanguage(std::string const & language) const;
///
size_type size() const { return languagelist.size(); }
///
const_iterator begin() const { return languagelist.begin(); }
///
const_iterator end() const { return languagelist.end(); }
///
private:
///
LanguageList languagelist;
};
/// Global singleton instance.
extern Languages languages;
/// Default language defined in LyXRC
extern Language const * default_language;
/// Used to indicate that the language should be left unchanged when
/// applying a font change.
extern Language const * ignore_language;
/// Default language defined in LyXRC
extern Language const * latex_language;
/// Used to indicate that the language should be reset to the Buffer
// language when applying a font change.
extern Language const * reset_language;
} // namespace lyx
#endif