+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;
+}
+
+}
+
+