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)
82 // Keep these sorted alphabetically!
83 LexerKeyword languageTags[] = {
84 { "asbabeloptions", LA_AS_BABELOPTS },
85 { "babelname", LA_BABELNAME },
86 { "encoding", LA_ENCODING },
88 { "guiname", LA_GUINAME },
89 { "internalencoding", LA_INTERNAL_ENC },
90 { "langcode", LA_LANG_CODE },
91 { "langvariety", LA_LANG_VARIETY },
92 { "polyglossianame", LA_POLYGLOSSIANAME },
93 { "polyglossiaopts", LA_POLYGLOSSIAOPTS },
94 { "postbabelpreamble", LA_POSTBABELPREAMBLE },
95 { "prebabelpreamble", LA_PREBABELPREAMBLE },
96 { "quotestyle", LA_QUOTESTYLE },
97 { "requires", LA_REQUIRES },
102 bool finished = false;
103 lex.pushTable(languageTags);
104 // parse style section
105 while (!finished && lex.isOK() && !error) {
107 // See comment in LyXRC.cpp.
109 case Lexer::LEX_FEOF:
112 case Lexer::LEX_UNDEF: // parse error
113 lex.printError("Unknown language tag `$$Token'");
120 switch (static_cast<LanguageTags>(le)) {
121 case LA_END: // end of structure
124 case LA_AS_BABELOPTS:
125 lex >> as_babel_options_;
130 case LA_POLYGLOSSIANAME:
131 lex >> polyglossia_name_;
133 case LA_POLYGLOSSIAOPTS:
134 lex >> polyglossia_opts_;
145 case LA_INTERNAL_ENC:
146 lex >> internal_enc_;
151 case LA_LANG_VARIETY:
154 case LA_POSTBABELPREAMBLE:
155 babel_postsettings_ =
156 lex.getLongString("EndPostBabelPreamble");
158 case LA_PREBABELPREAMBLE:
160 lex.getLongString("EndPreBabelPreamble");
171 return finished && !error;
175 bool Language::read(Lexer & lex)
177 as_babel_options_ = 0;
183 lex.printError("No name given for language: `$$Token'.");
187 lang_ = lex.getString();
188 LYXERR(Debug::INFO, "Reading language " << lang_);
189 if (!readLanguage(lex)) {
190 LYXERR0("Error parsing language `" << lang_ << '\'');
194 encoding_ = encodings.fromLyXName(encodingStr_);
195 if (!encoding_ && !encodingStr_.empty()) {
196 encoding_ = encodings.fromLyXName("iso8859-1");
197 LYXERR0("Unknown encoding " << encodingStr_);
203 void Language::readLayoutTranslations(Language::TranslationMap const & trans, bool replace)
205 TranslationMap::const_iterator const end = trans.end();
206 for (TranslationMap::const_iterator it = trans.begin(); it != end; ++it) {
208 || layoutTranslations_.find(it->first) == layoutTranslations_.end())
209 layoutTranslations_[it->first] = it->second;
214 void Languages::read(FileName const & filename)
217 lex.setFile(filename);
218 lex.setContext("Languages::read");
222 case Lexer::LEX_FEOF:
228 if (lex.getString() != "Language") {
229 lex.printError("Unknown Language tag `$$Token'");
236 if (l.lang() == "latex") {
237 // Check if latex language was not already defined.
238 LASSERT(latex_language == 0, continue);
239 static const Language latex_lang = l;
240 latex_language = &latex_lang;
241 } else if (l.lang() == "ignore") {
242 // Check if ignore language was not already defined.
243 LASSERT(ignore_language == 0, continue);
244 static const Language ignore_lang = l;
245 ignore_language = &ignore_lang;
247 languagelist[l.lang()] = l;
250 default_language = getLanguage("english");
251 if (!default_language) {
252 LYXERR0("Default language \"english\" not found!");
253 default_language = &(*languagelist.begin()).second;
254 LYXERR0("Using \"" << default_language->lang() << "\" instead!");
257 // Read layout translations
258 FileName const path = libFileSearch(string(), "layouttranslations");
259 readLayoutTranslations(path);
265 bool readTranslations(Lexer & lex, Language::TranslationMap & trans)
268 if (lex.checkFor("End"))
272 string const key = lex.getString();
275 docstring const val = lex.getDocString();
289 Match match(string const & code, Language const & lang)
291 // we need to mimic gettext: code can be a two-letter code, which
292 // should match all variants, e.g. "de" should match "de_DE",
294 // special case for chinese:
295 // simplified => code == "zh_CN", langcode == "zh_CN"
296 // traditional => code == "zh_TW", langcode == "zh_CN"
297 string const variety = lang.variety();
298 string const langcode = variety.empty() ?
299 lang.code() : lang.code() + '_' + variety;
300 string const name = lang.lang();
301 if ((code == langcode && name != "chinese-traditional")
302 || (code == "zh_TW" && name == "chinese-traditional"))
304 if ((code.size() == 2) && (langcode.size() > 2)
305 && (code + '_' == langcode.substr(0, 3)))
306 return ApproximateMatch;
313 void Languages::readLayoutTranslations(support::FileName const & filename)
316 lex.setFile(filename);
317 lex.setContext("Languages::read");
319 // 1) read all translations (exact and approximate matches) into trans
320 typedef std::map<string, Language::TranslationMap> TransMap;
322 LanguageList::iterator const lbeg = languagelist.begin();
323 LanguageList::iterator const lend = languagelist.end();
325 if (!lex.checkFor("Translation")) {
327 lex.printError("Unknown layout translation tag `$$Token'");
332 string const code = lex.getString();
334 for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
335 if (match(code, lit->second) != NoMatch) {
341 lex.printError("Unknown language `" + code + "'");
344 if (!readTranslations(lex, trans[code])) {
345 lex.printError("Could not read layout translations for language `"
351 // 2) merge all translations into the languages
352 // exact translations overwrite approximate ones
353 TransMap::const_iterator const tbeg = trans.begin();
354 TransMap::const_iterator const tend = trans.end();
355 for (TransMap::const_iterator tit = tbeg; tit != tend; ++tit) {
356 for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
357 Match const m = match(tit->first, lit->second);
360 lit->second.readLayoutTranslations(tit->second,
368 Language const * Languages::getLanguage(string const & language) const
370 if (language == "reset")
371 return reset_language;
372 if (language == "ignore")
373 return ignore_language;
374 const_iterator it = languagelist.find(language);
375 return it == languagelist.end() ? reset_language : &it->second;