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 bool Language::isPolyglossiaExclusive() const
43 return babel().empty() && !polyglossia().empty() && requires().empty();
47 docstring const Language::translateLayout(string const & m) const
53 lyxerr << "Warning: not translating `" << m
54 << "' because it is not pure ASCII.\n";
58 TranslationMap::const_iterator it = layoutTranslations_.find(m);
59 if (it != layoutTranslations_.end())
62 docstring t = from_ascii(m);
68 bool Language::readLanguage(Lexer & lex)
90 // Keep these sorted alphabetically!
91 LexerKeyword languageTags[] = {
92 { "asbabeloptions", LA_AS_BABELOPTS },
93 { "babelname", LA_BABELNAME },
94 { "encoding", LA_ENCODING },
96 { "fontencoding", LA_FONTENC },
97 { "guiname", LA_GUINAME },
98 { "hasguisupport", LA_HAS_GUI_SUPPORT },
99 { "internalencoding", LA_INTERNAL_ENC },
100 { "langcode", LA_LANG_CODE },
101 { "langvariety", LA_LANG_VARIETY },
102 { "polyglossianame", LA_POLYGLOSSIANAME },
103 { "polyglossiaopts", LA_POLYGLOSSIAOPTS },
104 { "postbabelpreamble", LA_POSTBABELPREAMBLE },
105 { "prebabelpreamble", LA_PREBABELPREAMBLE },
106 { "quotestyle", LA_QUOTESTYLE },
107 { "requires", LA_REQUIRES },
112 bool finished = false;
113 lex.pushTable(languageTags);
114 // parse style section
115 while (!finished && lex.isOK() && !error) {
117 // See comment in LyXRC.cpp.
119 case Lexer::LEX_FEOF:
122 case Lexer::LEX_UNDEF: // parse error
123 lex.printError("Unknown language tag `$$Token'");
130 switch (static_cast<LanguageTags>(le)) {
131 case LA_END: // end of structure
134 case LA_AS_BABELOPTS:
135 lex >> as_babel_options_;
140 case LA_POLYGLOSSIANAME:
141 lex >> polyglossia_name_;
143 case LA_POLYGLOSSIAOPTS:
144 lex >> polyglossia_opts_;
158 case LA_HAS_GUI_SUPPORT:
159 lex >> has_gui_support_;
161 case LA_INTERNAL_ENC:
162 lex >> internal_enc_;
167 case LA_LANG_VARIETY:
170 case LA_POSTBABELPREAMBLE:
171 babel_postsettings_ =
172 lex.getLongString("EndPostBabelPreamble");
174 case LA_PREBABELPREAMBLE:
176 lex.getLongString("EndPreBabelPreamble");
187 return finished && !error;
191 bool Language::read(Lexer & lex)
193 as_babel_options_ = 0;
199 lex.printError("No name given for language: `$$Token'.");
203 lang_ = lex.getString();
204 LYXERR(Debug::INFO, "Reading language " << lang_);
205 if (!readLanguage(lex)) {
206 LYXERR0("Error parsing language `" << lang_ << '\'');
210 encoding_ = encodings.fromLyXName(encodingStr_);
211 if (!encoding_ && !encodingStr_.empty()) {
212 encoding_ = encodings.fromLyXName("iso8859-1");
213 LYXERR0("Unknown encoding " << encodingStr_);
219 void Language::readLayoutTranslations(Language::TranslationMap const & trans, bool replace)
221 TranslationMap::const_iterator const end = trans.end();
222 for (TranslationMap::const_iterator it = trans.begin(); it != end; ++it) {
224 || layoutTranslations_.find(it->first) == layoutTranslations_.end())
225 layoutTranslations_[it->first] = it->second;
230 void Languages::read(FileName const & filename)
233 lex.setFile(filename);
234 lex.setContext("Languages::read");
238 case Lexer::LEX_FEOF:
244 if (lex.getString() != "Language") {
245 lex.printError("Unknown Language tag `$$Token'");
252 if (l.lang() == "latex") {
253 // Check if latex language was not already defined.
254 LASSERT(latex_language == 0, continue);
255 static const Language latex_lang = l;
256 latex_language = &latex_lang;
257 } else if (l.lang() == "ignore") {
258 // Check if ignore language was not already defined.
259 LASSERT(ignore_language == 0, continue);
260 static const Language ignore_lang = l;
261 ignore_language = &ignore_lang;
263 languagelist[l.lang()] = l;
266 default_language = getLanguage("english");
267 if (!default_language) {
268 LYXERR0("Default language \"english\" not found!");
269 default_language = &(*languagelist.begin()).second;
270 LYXERR0("Using \"" << default_language->lang() << "\" instead!");
273 // Read layout translations
274 FileName const path = libFileSearch(string(), "layouttranslations");
275 readLayoutTranslations(path);
281 bool readTranslations(Lexer & lex, Language::TranslationMap & trans)
284 if (lex.checkFor("End"))
288 string const key = lex.getString();
291 docstring const val = lex.getDocString();
305 Match match(string const & code, Language const & lang)
307 // we need to mimic gettext: code can be a two-letter code, which
308 // should match all variants, e.g. "de" should match "de_DE",
310 // special case for chinese:
311 // simplified => code == "zh_CN", langcode == "zh_CN"
312 // traditional => code == "zh_TW", langcode == "zh_CN"
313 string const variety = lang.variety();
314 string const langcode = variety.empty() ?
315 lang.code() : lang.code() + '_' + variety;
316 string const name = lang.lang();
317 if ((code == langcode && name != "chinese-traditional")
318 || (code == "zh_TW" && name == "chinese-traditional"))
320 if ((code.size() == 2) && (langcode.size() > 2)
321 && (code + '_' == langcode.substr(0, 3)))
322 return ApproximateMatch;
329 void Languages::readLayoutTranslations(support::FileName const & filename)
332 lex.setFile(filename);
333 lex.setContext("Languages::read");
335 // 1) read all translations (exact and approximate matches) into trans
336 typedef std::map<string, Language::TranslationMap> TransMap;
338 LanguageList::iterator const lbeg = languagelist.begin();
339 LanguageList::iterator const lend = languagelist.end();
341 if (!lex.checkFor("Translation")) {
343 lex.printError("Unknown layout translation tag `$$Token'");
348 string const code = lex.getString();
350 for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
351 if (match(code, lit->second) != NoMatch) {
357 lex.printError("Unknown language `" + code + "'");
360 if (!readTranslations(lex, trans[code])) {
361 lex.printError("Could not read layout translations for language `"
367 // 2) merge all translations into the languages
368 // exact translations overwrite approximate ones
369 TransMap::const_iterator const tbeg = trans.begin();
370 TransMap::const_iterator const tend = trans.end();
371 for (TransMap::const_iterator tit = tbeg; tit != tend; ++tit) {
372 for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
373 Match const m = match(tit->first, lit->second);
376 lit->second.readLayoutTranslations(tit->second,
384 Language const * Languages::getLanguage(string const & language) const
386 if (language == "reset")
387 return reset_language;
388 if (language == "ignore")
389 return ignore_language;
390 const_iterator it = languagelist.find(language);
391 return it == languagelist.end() ? reset_language : &it->second;