3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Lars Gullik Bjønnes
7 * \author Jean-Marc Lasgouttes
8 * \author Jürgen Spitzmüller
11 * Full author contact details are available in file CREDITS.
22 #include "support/debug.h"
23 #include "support/FileName.h"
24 #include "support/filetools.h"
25 #include "support/lassert.h"
26 #include "support/lstrings.h"
27 #include "support/Messages.h"
30 using namespace lyx::support;
35 Language const * ignore_language = 0;
36 Language const * default_language = 0;
37 Language const * latex_language = 0;
38 Language const * reset_language = 0;
41 docstring const Language::translateLayout(string const & m) const
47 lyxerr << "Warning: not translating `" << m
48 << "' because it is not pure ASCII.\n";
52 TranslationMap::const_iterator it = layoutTranslations_.find(m);
53 if (it != layoutTranslations_.end())
56 docstring t = from_ascii(m);
62 bool Language::readLanguage(Lexer & lex)
81 // Keep these sorted alphabetically!
82 LexerKeyword languageTags[] = {
83 { "asbabeloptions", LA_AS_BABELOPTS },
84 { "babelname", LA_BABELNAME },
85 { "encoding", LA_ENCODING },
87 { "guiname", LA_GUINAME },
88 { "internalencoding", LA_INTERNAL_ENC },
89 { "langcode", LA_LANG_CODE },
90 { "langvariety", LA_LANG_VARIETY },
91 { "polyglossianame", LA_POLYGLOSSIANAME },
92 { "polyglossiaopts", LA_POLYGLOSSIAOPTS },
93 { "postbabelpreamble", LA_POSTBABELPREAMBLE },
94 { "prebabelpreamble", LA_PREBABELPREAMBLE },
95 { "requires", LA_REQUIRES },
100 bool finished = false;
101 lex.pushTable(languageTags);
102 // parse style section
103 while (!finished && lex.isOK() && !error) {
105 // See comment in LyXRC.cpp.
107 case Lexer::LEX_FEOF:
110 case Lexer::LEX_UNDEF: // parse error
111 lex.printError("Unknown language tag `$$Token'");
118 switch (static_cast<LanguageTags>(le)) {
119 case LA_END: // end of structure
122 case LA_AS_BABELOPTS:
123 lex >> as_babel_options_;
128 case LA_POLYGLOSSIANAME:
129 lex >> polyglossia_name_;
131 case LA_POLYGLOSSIAOPTS:
132 lex >> polyglossia_opts_;
140 case LA_INTERNAL_ENC:
141 lex >> internal_enc_;
146 case LA_LANG_VARIETY:
149 case LA_POSTBABELPREAMBLE:
150 babel_postsettings_ =
151 lex.getLongString("EndPostBabelPreamble");
153 case LA_PREBABELPREAMBLE:
155 lex.getLongString("EndPreBabelPreamble");
166 return finished && !error;
170 bool Language::read(Lexer & lex)
172 as_babel_options_ = 0;
178 lex.printError("No name given for language: `$$Token'.");
182 lang_ = lex.getString();
183 LYXERR(Debug::INFO, "Reading language " << lang_);
184 if (!readLanguage(lex)) {
185 LYXERR0("Error parsing language `" << lang_ << '\'');
189 encoding_ = encodings.fromLyXName(encodingStr_);
190 if (!encoding_ && !encodingStr_.empty()) {
191 encoding_ = encodings.fromLyXName("iso8859-1");
192 LYXERR0("Unknown encoding " << encodingStr_);
194 // cache translation status. Calling getMessages() directly in
195 // PrefLanguage::PrefLanguage() did only work if the gui language
196 // was set to auto (otherwise all languages would be marked as available).
197 translated_ = getMessages(code()).available();
202 void Language::readLayoutTranslations(Language::TranslationMap const & trans, bool replace)
204 TranslationMap::const_iterator const end = trans.end();
205 for (TranslationMap::const_iterator it = trans.begin(); it != end; ++it) {
207 || layoutTranslations_.find(it->first) == layoutTranslations_.end())
208 layoutTranslations_[it->first] = it->second;
213 void Languages::read(FileName const & filename)
216 lex.setFile(filename);
217 lex.setContext("Languages::read");
221 case Lexer::LEX_FEOF:
227 if (lex.getString() != "Language") {
228 lex.printError("Unknown Language tag `$$Token'");
235 if (l.lang() == "latex") {
236 // Check if latex language was not already defined.
237 LASSERT(latex_language == 0, continue);
238 static const Language latex_lang = l;
239 latex_language = &latex_lang;
240 } else if (l.lang() == "ignore") {
241 // Check if ignore language was not already defined.
242 LASSERT(ignore_language == 0, continue);
243 static const Language ignore_lang = l;
244 ignore_language = &ignore_lang;
246 languagelist[l.lang()] = l;
249 default_language = getLanguage(lyxrc.default_language);
250 if (!default_language) {
251 LYXERR0("Default language \"" << lyxrc.default_language
253 default_language = getLanguage("english");
254 if (!default_language)
255 default_language = &(*languagelist.begin()).second;
256 LYXERR0("Using \"" << default_language->lang() << "\" instead!");
259 // Read layout translations
260 FileName const path = libFileSearch(string(), "layouttranslations");
261 readLayoutTranslations(path);
267 bool readTranslations(Lexer & lex, Language::TranslationMap & trans)
270 if (lex.checkFor("End"))
274 string const key = lex.getString();
277 docstring const val = lex.getDocString();
291 Match match(string const & code, Language const & lang)
293 // we need to mimic gettext: code can be a two-letter code, which
294 // should match all variants, e.g. "de" should match "de_DE",
296 // special case for chinese:
297 // simplified => code == "zh_CN", langcode == "zh_CN"
298 // traditional => code == "zh_TW", langcode == "zh_CN"
299 string const variety = lang.variety();
300 string const langcode = variety.empty() ?
301 lang.code() : lang.code() + '_' + variety;
302 string const name = lang.lang();
303 if ((code == langcode && name != "chinese-traditional")
304 || (code == "zh_TW" && name == "chinese-traditional"))
306 if ((code.size() == 2) && (langcode.size() > 2)
307 && (code + '_' == langcode.substr(0, 3)))
308 return ApproximateMatch;
315 void Languages::readLayoutTranslations(support::FileName const & filename)
318 lex.setFile(filename);
319 lex.setContext("Languages::read");
321 // 1) read all translations (exact and approximate matches) into trans
322 typedef std::map<string, Language::TranslationMap> TransMap;
324 LanguageList::iterator const lbeg = languagelist.begin();
325 LanguageList::iterator const lend = languagelist.end();
327 if (!lex.checkFor("Translation")) {
329 lex.printError("Unknown layout translation tag `$$Token'");
334 string const code = lex.getString();
336 for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
337 if (match(code, lit->second) != NoMatch) {
343 lex.printError("Unknown language `" + code + "'");
346 if (!readTranslations(lex, trans[code])) {
347 lex.printError("Could not read layout translations for language `"
353 // 2) merge all translations into the languages
354 // exact translations overwrite approximate ones
355 TransMap::const_iterator const tbeg = trans.begin();
356 TransMap::const_iterator const tend = trans.end();
357 for (TransMap::const_iterator tit = tbeg; tit != tend; ++tit) {
358 for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
359 Match const m = match(tit->first, lit->second);
362 lit->second.readLayoutTranslations(tit->second,
370 Language const * Languages::getLanguage(string const & language) const
372 if (language == "reset")
373 return reset_language;
374 if (language == "ignore")
375 return ignore_language;
376 const_iterator it = languagelist.find(language);
377 return it == languagelist.end() ? reset_language : &it->second;