]> git.lyx.org Git - lyx.git/blobdiff - src/Language.cpp
Avoid full metrics computation with Update:FitCursor
[lyx.git] / src / Language.cpp
index 4f69a616ddd37a0e43846baad76920b6e9efc61f..60b897c134c289f33225e1421dcef5e2e54d89d9 100644 (file)
 
 #include "Language.h"
 
+#include "BufferParams.h"
 #include "Encoding.h"
 #include "LaTeXFonts.h"
-#include "Lexer.h"
 #include "LyXRC.h"
 
 #include "support/debug.h"
+#include "support/docstring.h"
 #include "support/FileName.h"
 #include "support/filetools.h"
 #include "support/lassert.h"
+#include "support/Lexer.h"
 #include "support/lstrings.h"
+#include "support/qstring_helpers.h"
 #include "support/Messages.h"
 
+#include <QLocale>
+#include <QString>
+
 using namespace std;
 using namespace lyx::support;
 
 namespace lyx {
 
 Languages languages;
-Language const * ignore_language = 0;
-Language const * default_language = 0;
-Language const * latex_language = 0;
-Language const * reset_language = 0;
+Language const * ignore_language = nullptr;
+Language const * default_language = nullptr;
+Language const * latex_language = nullptr;
+Language const * reset_language = nullptr;
 
 
 bool Language::isPolyglossiaExclusive() const
 {
-       return babel().empty() && !polyglossia().empty() && requires().empty();
+       return babel().empty() && !polyglossia().empty() && required().empty();
 }
 
 
 bool Language::isBabelExclusive() const
 {
-       return !babel().empty() && polyglossia().empty() && requires().empty();
+       return !babel().empty() && polyglossia().empty() && required().empty();
 }
 
 
-docstring const Language::translateLayout(string const & m) const
+docstring const Language::translateLayout(string const & msg) const
 {
-       if (m.empty())
+       if (msg.empty())
                return docstring();
 
-       if (!isAscii(m)) {
-               lyxerr << "Warning: not translating `" << m
+       if (!isAscii(msg)) {
+               lyxerr << "Warning: not translating `" << msg
                       << "' because it is not pure ASCII.\n";
-               return from_utf8(m);
+               return from_utf8(msg);
        }
 
-       TranslationMap::const_iterator it = layoutTranslations_.find(m);
+       TranslationMap::const_iterator it = layoutTranslations_.find(msg);
        if (it != layoutTranslations_.end())
                return it->second;
 
-       docstring t = from_ascii(m);
+       docstring t = from_ascii(msg);
        cleanTranslation(t);
        return t;
 }
@@ -74,11 +80,16 @@ docstring const Language::translateLayout(string const & m) const
 
 string Language::fontenc(BufferParams const & params) const
 {
+       // Don't use LaTeX fonts, so just return the language's preferred
+       // (although this is not used with nonTeXFonts anyway).
+       if (params.useNonTeXFonts)
+               return fontenc_.front() == "ASCII" ? "T1" : fontenc_.front();
+
        // Determine optimal font encoding
        // We check whether the used rm font supports an encoding our language supports
        LaTeXFont const & lf =
                theLaTeXFonts().getLaTeXFont(from_ascii(params.fontsRoman()));
-       vector<string> const lfe = lf.fontencs();
+       vector<string> const lfe = lf.fontencs();
        for (auto & fe : fontenc_) {
                // ASCII means: support all T* encodings plus OT1
                if (fe == "ASCII") {
@@ -98,11 +109,29 @@ string Language::fontenc(BufferParams const & params) const
 }
 
 
+string Language::dateFormat(size_t i) const
+{
+       if (i > dateformats_.size())
+               return string();
+       return dateformats_.at(i);
+}
+
+
+docstring Language::decimalSeparator() const
+{
+       if (lyxrc.default_decimal_sep == "locale") {
+               QLocale loc = QLocale(toqstr(code()));
+               return qstring_to_ucs4(QString(loc.decimalPoint()));
+       }
+       return from_utf8(lyxrc.default_decimal_sep);
+}
+
+
 bool Language::readLanguage(Lexer & lex)
 {
        enum LanguageTags {
-               LA_AS_BABELOPTS = 1,
-               LA_BABELNAME,
+               LA_BABELNAME = 1,
+               LA_DATEFORMATS,
                LA_ENCODING,
                LA_END,
                LA_FONTENC,
@@ -113,18 +142,22 @@ bool Language::readLanguage(Lexer & lex)
                LA_LANG_VARIETY,
                LA_POLYGLOSSIANAME,
                LA_POLYGLOSSIAOPTS,
+               LA_XINDYNAME,
                LA_POSTBABELPREAMBLE,
                LA_PREBABELPREAMBLE,
                LA_PROVIDES,
                LA_REQUIRES,
                LA_QUOTESTYLE,
-               LA_RTL
+               LA_RTL,
+               LA_WORDWRAP,
+               LA_ACTIVECHARS
        };
 
        // Keep these sorted alphabetically!
        LexerKeyword languageTags[] = {
-               { "asbabeloptions",       LA_AS_BABELOPTS },
+               { "activechars",          LA_ACTIVECHARS },
                { "babelname",            LA_BABELNAME },
+               { "dateformats",          LA_DATEFORMATS },
                { "encoding",             LA_ENCODING },
                { "end",                  LA_END },
                { "fontencoding",         LA_FONTENC },
@@ -140,7 +173,9 @@ bool Language::readLanguage(Lexer & lex)
                { "provides",             LA_PROVIDES },
                { "quotestyle",           LA_QUOTESTYLE },
                { "requires",             LA_REQUIRES },
-               { "rtl",                  LA_RTL }
+               { "rtl",                  LA_RTL },
+               { "wordwrap",             LA_WORDWRAP },
+               { "xindyname",            LA_XINDYNAME }
        };
 
        bool error = false;
@@ -166,9 +201,6 @@ bool Language::readLanguage(Lexer & lex)
                case LA_END: // end of structure
                        finished = true;
                        break;
-               case LA_AS_BABELOPTS:
-                       lex >> as_babel_options_;
-                       break;
                case LA_BABELNAME:
                        lex >> babel_;
                        break;
@@ -178,9 +210,15 @@ bool Language::readLanguage(Lexer & lex)
                case LA_POLYGLOSSIAOPTS:
                        lex >> polyglossia_opts_;
                        break;
+               case LA_XINDYNAME:
+                       lex >> xindy_;
+                       break;
                case LA_QUOTESTYLE:
                        lex >> quote_style_;
                        break;
+               case LA_ACTIVECHARS:
+                       lex >> active_chars_;
+                       break;
                case LA_ENCODING:
                        lex >> encodingStr_;
                        break;
@@ -191,6 +229,13 @@ bool Language::readLanguage(Lexer & lex)
                        fontenc_.insert(fontenc_.end(), fe.begin(), fe.end());
                        break;
                }
+               case LA_DATEFORMATS: {
+                       lex.eatLine();
+                       vector<string> const df =
+                               getVectorFromString(trim(lex.getString(true), "\""), "|");
+                       dateformats_.insert(dateformats_.end(), df.begin(), df.end());
+                       break;
+               }
                case LA_GUINAME:
                        lex >> display_;
                        break;
@@ -215,7 +260,7 @@ bool Language::readLanguage(Lexer & lex)
                                lex.getLongString(from_ascii("EndPreBabelPreamble"));
                        break;
                case LA_REQUIRES:
-                       lex >> requires_;
+                       lex >> required_;
                        break;
                case LA_PROVIDES:
                        lex >> provides_;
@@ -223,6 +268,9 @@ bool Language::readLanguage(Lexer & lex)
                case LA_RTL:
                        lex >> rightToLeft_;
                        break;
+               case LA_WORDWRAP:
+                       lex >> word_wrap_;
+                       break;
                }
        }
        lex.popTable();
@@ -232,10 +280,9 @@ bool Language::readLanguage(Lexer & lex)
 
 bool Language::read(Lexer & lex)
 {
-       as_babel_options_ = 0;
-       encoding_ = 0;
-       internal_enc_ = 0;
-       rightToLeft_ = 0;
+       encoding_ = nullptr;
+       internal_enc_ = false;
+       rightToLeft_ = false;
 
        if (!lex.next()) {
                lex.printError("No name given for language: `$$Token'.");
@@ -256,17 +303,21 @@ bool Language::read(Lexer & lex)
        }
        if (fontenc_.empty())
                fontenc_.push_back("ASCII");
+       if (dateformats_.empty()) {
+               dateformats_.push_back("MMMM dd, yyyy");
+               dateformats_.push_back("MMM dd, yyyy");
+               dateformats_.push_back("M/d/yyyy");
+       }
        return true;
 }
 
 
 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) {
+       for (auto const & t : trans) {
                if (replace
-                       || layoutTranslations_.find(it->first) == layoutTranslations_.end())
-                       layoutTranslations_[it->first] = it->second;
+                   || layoutTranslations_.find(t.first) == layoutTranslations_.end())
+                       layoutTranslations_[t.first] = t.second;
        }
 }
 
@@ -295,22 +346,22 @@ void Languages::read(FileName const & filename)
                        break;
                if (l.lang() == "latex") {
                        // Check if latex language was not already defined.
-                       LASSERT(latex_language == 0, continue);
+                       LASSERT(latex_language == nullptr, continue);
                        static const Language latex_lang = l;
                        latex_language = &latex_lang;
                } else if (l.lang() == "ignore") {
                        // Check if ignore language was not already defined.
-                       LASSERT(ignore_language == 0, continue);
+                       LASSERT(ignore_language == nullptr, continue);
                        static const Language ignore_lang = l;
                        ignore_language = &ignore_lang;
                } else
-                       languagelist[l.lang()] = l;
+                       languagelist_[l.lang()] = l;
        }
 
        default_language = getLanguage("english");
        if (!default_language) {
                LYXERR0("Default language \"english\" not found!");
-               default_language = &(*languagelist.begin()).second;
+               default_language = &(*languagelist_.begin()).second;
                LYXERR0("Using \"" << default_language->lang() << "\" instead!");
        }
 
@@ -342,6 +393,7 @@ bool readTranslations(Lexer & lex, Language::TranslationMap & trans)
 enum Match {
        NoMatch,
        ApproximateMatch,
+       VeryApproximateMatch,
        ExactMatch
 };
 
@@ -364,12 +416,56 @@ Match match(string const & code, Language const & lang)
        if ((code.size() == 2) && (langcode.size() > 2)
                && (code + '_' == langcode.substr(0, 3)))
                return ApproximateMatch;
+       if (code.substr(0,2) == langcode.substr(0,2))
+               return VeryApproximateMatch;
        return NoMatch;
 }
 
 } // namespace
 
 
+
+Language const * Languages::getFromCode(string const & code) const
+{
+       // 1/ exact match with any known language
+       for (auto const & l : languagelist_) {
+               if (match(code, l.second) == ExactMatch)
+                       return &l.second;
+       }
+
+       // 2/ approximate with any known language
+       for (auto const & l : languagelist_) {
+               if (match(code, l.second) == ApproximateMatch)
+                       return &l.second;
+       }
+       return nullptr;
+}
+
+
+Language const * Languages::getFromCode(string const & code,
+                       set<Language const *> const & tryfirst) const
+{
+       // 1/ exact match with tryfirst list
+       for (auto const * lptr : tryfirst) {
+               if (match(code, *lptr) == ExactMatch)
+                       return lptr;
+       }
+
+       // 2/ approximate match with tryfirst list
+       for (auto const * lptr : tryfirst) {
+               Match const m = match(code, *lptr);
+               if (m == ApproximateMatch || m == VeryApproximateMatch)
+                       return lptr;
+       }
+
+       // 3/ stricter match in all languages
+       return getFromCode(code);
+
+       LYXERR0("Unknown language `" << code << "'");
+       return nullptr;
+}
+
+
 void Languages::readLayoutTranslations(support::FileName const & filename)
 {
        Lexer lex;
@@ -377,10 +473,7 @@ void Languages::readLayoutTranslations(support::FileName const & 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();
+       std::map<string, Language::TranslationMap> trans;
        while (lex.isOK()) {
                if (!lex.checkFor("Translation")) {
                        if (lex.isOK())
@@ -390,13 +483,7 @@ void Languages::readLayoutTranslations(support::FileName const & filename)
                if (!lex.next(true))
                        break;
                string const code = lex.getString();
-               bool found = false;
-               for (LanguageList::iterator lit = lbeg; lit != lend; ++lit) {
-                       if (match(code, lit->second) != NoMatch) {
-                               found = true;
-                               break;
-                       }
-               }
+               bool found = getFromCode(code);
                if (!found) {
                        lex.printError("Unknown language `" + code + "'");
                        break;
@@ -410,15 +497,12 @@ void Languages::readLayoutTranslations(support::FileName const & filename)
 
        // 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 const m = match(tit->first, lit->second);
+       for (auto & tr : trans) {
+               for (auto & lang : languagelist_) {
+                       Match const m = match(tr.first, lang.second);
                        if (m == NoMatch)
                                continue;
-                       lit->second.readLayoutTranslations(tit->second,
-                                                          m == ExactMatch);
+                       lang.second.readLayoutTranslations(tr.second, m == ExactMatch);
                }
        }
 
@@ -431,8 +515,8 @@ Language const * Languages::getLanguage(string const & language) const
                return reset_language;
        if (language == "ignore")
                return ignore_language;
-       const_iterator it = languagelist.find(language);
-       return it == languagelist.end() ? reset_language : &it->second;
+       const_iterator it = languagelist_.find(language);
+       return it == languagelist_.end() ? reset_language : &it->second;
 }