X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FLanguage.cpp;h=8f984325d8448e4c252e2a0efde5f0e8f90ba79b;hb=d83e0022017fa6245173e55332f60b7a4a78dc31;hp=e588218047aea9c790753aa0d94b1a118188bd99;hpb=53a72a45266feb86c13f47615a4cbb15053f3c63;p=lyx.git

diff --git a/src/Language.cpp b/src/Language.cpp
index e588218047..8f984325d8 100644
--- a/src/Language.cpp
+++ b/src/Language.cpp
@@ -21,6 +21,7 @@
 
 #include "support/debug.h"
 #include "support/FileName.h"
+#include "support/filetools.h"
 #include "support/lstrings.h"
 #include "support/Messages.h"
 
@@ -39,6 +40,25 @@ 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 {
@@ -173,6 +193,61 @@ bool Language::read(Lexer & lex)
 	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;
@@ -212,6 +287,65 @@ void Languages::read(FileName const & filename)
 			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);
+		}
+	}
+
 }