mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-23 02:14:50 +00:00
5bf72d6dca
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@38029 a592a061-630c-0410-9148-cb99ea01b6c8
364 lines
8.8 KiB
C++
364 lines
8.8 KiB
C++
/**
|
|
* \file Language.cpp
|
|
* 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 Jürgen Spitzmüller
|
|
* \author Dekel Tsur
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "Language.h"
|
|
|
|
#include "Encoding.h"
|
|
#include "Lexer.h"
|
|
#include "LyXRC.h"
|
|
|
|
#include "support/debug.h"
|
|
#include "support/FileName.h"
|
|
#include "support/filetools.h"
|
|
#include "support/lstrings.h"
|
|
#include "support/Messages.h"
|
|
|
|
using namespace std;
|
|
using namespace lyx::support;
|
|
|
|
|
|
namespace lyx {
|
|
|
|
Languages languages;
|
|
Language ignore_lang;
|
|
Language latex_lang;
|
|
Language const * default_language;
|
|
Language const * ignore_language = &ignore_lang;
|
|
Language const * latex_language = &latex_lang;
|
|
Language const * reset_language = 0;
|
|
|
|
|
|
docstring const Language::translateLayout(string const & m) const
|
|
{
|
|
if (m.empty())
|
|
return docstring();
|
|
|
|
if (!isAscii(m)) {
|
|
lyxerr << "Warning: not translating `" << m
|
|
<< "' because it is not pure ASCII.\n";
|
|
return from_utf8(m);
|
|
}
|
|
|
|
TranslationMap::const_iterator it = layoutTranslations_.find(m);
|
|
if (it != layoutTranslations_.end())
|
|
return it->second;
|
|
|
|
return from_ascii(m);
|
|
}
|
|
|
|
|
|
bool Language::readLanguage(Lexer & lex)
|
|
{
|
|
enum LanguageTags {
|
|
LA_AS_BABELOPTS = 1,
|
|
LA_BABELNAME,
|
|
LA_ENCODING,
|
|
LA_END,
|
|
LA_GUINAME,
|
|
LA_INTERNAL_ENC,
|
|
LA_LANG_CODE,
|
|
LA_LANG_VARIETY,
|
|
LA_POLYGLOSSIANAME,
|
|
LA_POLYGLOSSIAOPTS,
|
|
LA_POSTBABELPREAMBLE,
|
|
LA_PREBABELPREAMBLE,
|
|
LA_RTL
|
|
};
|
|
|
|
// Keep these sorted alphabetically!
|
|
LexerKeyword languageTags[] = {
|
|
{ "asbabeloptions", LA_AS_BABELOPTS },
|
|
{ "babelname", LA_BABELNAME },
|
|
{ "encoding", LA_ENCODING },
|
|
{ "end", LA_END },
|
|
{ "guiname", LA_GUINAME },
|
|
{ "internalencoding", LA_INTERNAL_ENC },
|
|
{ "langcode", LA_LANG_CODE },
|
|
{ "langvariety", LA_LANG_VARIETY },
|
|
{ "polyglossianame", LA_POLYGLOSSIANAME },
|
|
{ "polyglossiaopts", LA_POLYGLOSSIAOPTS },
|
|
{ "postbabelpreamble", LA_POSTBABELPREAMBLE },
|
|
{ "prebabelpreamble", LA_PREBABELPREAMBLE },
|
|
{ "rtl", LA_RTL }
|
|
};
|
|
|
|
bool error = false;
|
|
bool finished = false;
|
|
lex.pushTable(languageTags);
|
|
// parse style section
|
|
while (!finished && lex.isOK() && !error) {
|
|
int le = lex.lex();
|
|
// See comment in LyXRC.cpp.
|
|
switch (le) {
|
|
case Lexer::LEX_FEOF:
|
|
continue;
|
|
|
|
case Lexer::LEX_UNDEF: // parse error
|
|
lex.printError("Unknown language tag `$$Token'");
|
|
error = true;
|
|
continue;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
switch (static_cast<LanguageTags>(le)) {
|
|
case LA_END: // end of structure
|
|
finished = true;
|
|
break;
|
|
case LA_AS_BABELOPTS:
|
|
lex >> as_babel_options_;
|
|
break;
|
|
case LA_BABELNAME:
|
|
lex >> babel_;
|
|
break;
|
|
case LA_POLYGLOSSIANAME:
|
|
lex >> polyglossia_name_;
|
|
break;
|
|
case LA_POLYGLOSSIAOPTS:
|
|
lex >> polyglossia_opts_;
|
|
break;
|
|
case LA_ENCODING:
|
|
lex >> encodingStr_;
|
|
break;
|
|
case LA_GUINAME:
|
|
lex >> display_;
|
|
break;
|
|
case LA_INTERNAL_ENC:
|
|
lex >> internal_enc_;
|
|
break;
|
|
case LA_LANG_CODE:
|
|
lex >> code_;
|
|
break;
|
|
case LA_LANG_VARIETY:
|
|
lex >> variety_;
|
|
break;
|
|
case LA_POSTBABELPREAMBLE:
|
|
babel_postsettings_ =
|
|
lex.getLongString("EndPostBabelPreamble");
|
|
break;
|
|
case LA_PREBABELPREAMBLE:
|
|
babel_presettings_ =
|
|
lex.getLongString("EndPreBabelPreamble");
|
|
break;
|
|
case LA_RTL:
|
|
lex >> rightToLeft_;
|
|
break;
|
|
}
|
|
}
|
|
lex.popTable();
|
|
return finished && !error;
|
|
}
|
|
|
|
|
|
bool Language::read(Lexer & lex)
|
|
{
|
|
as_babel_options_ = 0;
|
|
encoding_ = 0;
|
|
internal_enc_ = 0;
|
|
rightToLeft_ = 0;
|
|
|
|
if (!lex.next()) {
|
|
lex.printError("No name given for language: `$$Token'.");
|
|
return false;
|
|
}
|
|
|
|
lang_ = lex.getString();
|
|
LYXERR(Debug::INFO, "Reading language " << lang_);
|
|
if (!readLanguage(lex)) {
|
|
LYXERR0("Error parsing language `" << lang_ << '\'');
|
|
return false;
|
|
}
|
|
|
|
encoding_ = encodings.fromLyXName(encodingStr_);
|
|
if (!encoding_ && !encodingStr_.empty()) {
|
|
encoding_ = encodings.fromLyXName("iso8859-1");
|
|
LYXERR0("Unknown encoding " << encodingStr_);
|
|
}
|
|
// cache translation status. Calling getMessages() directly in
|
|
// PrefLanguage::PrefLanguage() did only work if the gui language
|
|
// was set to auto (otherwise all languages would be marked as available).
|
|
translated_ = getMessages(code()).available();
|
|
return true;
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
bool readTranslations(Lexer & lex, Language::TranslationMap & trans)
|
|
{
|
|
while (lex.isOK()) {
|
|
if (lex.checkFor("End"))
|
|
break;
|
|
if (!lex.next(true))
|
|
return false;
|
|
string const key = lex.getString();
|
|
if (!lex.next(true))
|
|
return false;
|
|
docstring const val = lex.getDocString();
|
|
trans[key] = val;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
enum Match{NoMatch, ApproximateMatch, ExactMatch};
|
|
|
|
Match match(string const & code, Language const & lang)
|
|
{
|
|
// we need to mimic gettext: code can be a two-letter code, which
|
|
// should match all variants, e.g. "de" should match "de_DE",
|
|
// "de_AT" etc.
|
|
// special case for chinese:
|
|
// simplified => code == "zh_CN", langcode == "zh_CN"
|
|
// traditional => code == "zh_TW", langcode == "zh_CN"
|
|
string const variety = lang.variety();
|
|
string const langcode = variety.empty() ?
|
|
lang.code() : lang.code() + '_' + variety;
|
|
string const name = lang.lang();
|
|
if ((code == langcode && name != "chinese-traditional") ||
|
|
(code == "zh_TW" && name == "chinese-traditional"))
|
|
return ExactMatch;
|
|
if ((code.size() == 2 && langcode.size() > 2 &&
|
|
code + '_' == langcode.substr(0, 3)))
|
|
return ApproximateMatch;
|
|
return NoMatch;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
void Language::readLayoutTranslations(Language::TranslationMap const & trans, bool replace)
|
|
{
|
|
TranslationMap::const_iterator const end = trans.end();
|
|
for (TranslationMap::const_iterator it = trans.begin(); it != end; ++it)
|
|
if (replace ||
|
|
layoutTranslations_.find(it->first) == layoutTranslations_.end())
|
|
layoutTranslations_[it->first] = it->second;
|
|
}
|
|
|
|
|
|
void Languages::read(FileName const & filename)
|
|
{
|
|
Lexer lex;
|
|
lex.setFile(filename);
|
|
lex.setContext("Languages::read");
|
|
while (lex.isOK()) {
|
|
int le = lex.lex();
|
|
switch (le) {
|
|
case Lexer::LEX_FEOF:
|
|
continue;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
if (lex.getString() != "Language") {
|
|
lex.printError("Unknown Language tag `$$Token'");
|
|
continue;
|
|
}
|
|
Language l;
|
|
l.read(lex);
|
|
if (!lex)
|
|
break;
|
|
if (l.lang() == "latex")
|
|
latex_lang = l;
|
|
else if (l.lang() == "ignore")
|
|
ignore_lang = l;
|
|
else
|
|
languagelist[l.lang()] = l;
|
|
}
|
|
|
|
default_language = getLanguage(lyxrc.default_language);
|
|
if (!default_language) {
|
|
LYXERR0("Default language \"" << lyxrc.default_language
|
|
<< "\" not found!");
|
|
default_language = getLanguage("english");
|
|
if (!default_language)
|
|
default_language = &(*languagelist.begin()).second;
|
|
LYXERR0("Using \"" << default_language->lang() << "\" instead!");
|
|
}
|
|
|
|
// Read layout translations
|
|
FileName const path = libFileSearch(string(), "layouttranslations");
|
|
readLayoutTranslations(path);
|
|
}
|
|
|
|
|
|
void Languages::readLayoutTranslations(support::FileName const & filename)
|
|
{
|
|
Lexer lex;
|
|
lex.setFile(filename);
|
|
lex.setContext("Languages::read");
|
|
|
|
// 1) read all translations (exact and approximate matches) into trans
|
|
typedef std::map<string, Language::TranslationMap> TransMap;
|
|
TransMap trans;
|
|
LanguageList::iterator const lbeg = languagelist.begin();
|
|
LanguageList::iterator const lend = languagelist.end();
|
|
while (lex.isOK()) {
|
|
if (!lex.checkFor("Translation")) {
|
|
if (lex.isOK())
|
|
lex.printError("Unknown layout translation tag `$$Token'");
|
|
break;
|
|
}
|
|
if (!lex.next(true))
|
|
break;
|
|
string const code = lex.getString();
|
|
bool readit = false;
|
|
for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
|
|
if (match(code, lit->second) != NoMatch) {
|
|
if (readTranslations(lex, trans[code]))
|
|
readit = true;
|
|
else
|
|
lex.printError("Could not read layout "
|
|
"translations for language "
|
|
"`" + code + "'");
|
|
break;
|
|
}
|
|
}
|
|
if (!readit) {
|
|
lex.printError("Unknown language `" + code + "'");
|
|
break;
|
|
}
|
|
}
|
|
|
|
// 2) merge all translations into the languages
|
|
// exact translations overwrite approximate ones
|
|
TransMap::const_iterator const tbeg = trans.begin();
|
|
TransMap::const_iterator const tend = trans.end();
|
|
for (TransMap::const_iterator tit = tbeg; tit != tend; ++tit) {
|
|
for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
|
|
Match m = match(tit->first, lit->second);
|
|
if (m == NoMatch)
|
|
continue;
|
|
lit->second.readLayoutTranslations(tit->second,
|
|
m == ExactMatch);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
Language const * Languages::getLanguage(string const & language) const
|
|
{
|
|
if (language == "reset")
|
|
return reset_language;
|
|
if (language == "ignore")
|
|
return ignore_language;
|
|
const_iterator it = languagelist.find(language);
|
|
return it == languagelist.end() ? reset_language : &it->second;
|
|
}
|
|
|
|
|
|
} // namespace lyx
|