src/Language.cpp

   1 /**
   2  * \file Language.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author Jean-Marc Lasgouttes
   8  * \author Dekel Tsur
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "Language.h"
  16
  17 #include "Encoding.h"
  18 #include "Lexer.h"
  19 #include "LyXRC.h"
  20
  21 #include "support/debug.h"
  22 #include "support/FileName.h"
  23
  24 using namespace std;
  25 using namespace lyx::support;
  26
  27
  28 namespace lyx {
  29
  30 Languages languages;
  31 Language ignore_lang;
  32 Language latex_lang;
  33 Language const * default_language;
  34 Language const * ignore_language = &ignore_lang;
  35 Language const * latex_language = &latex_lang;
  36 Language const * reset_language = 0;
  37
  38
  39 bool Language::read(Lexer & lex)
  40 {
  41         encoding_ = 0;
  42         lex >> lang_;
  43         lex >> babel_;
  44         lex >> display_;
  45         lex >> rightToLeft_;
  46         lex >> encodingStr_;
  47         lex >> code_;
  48         lex >> latex_options_;
  49         if (!lex)
  50                 return false;
  51
  52         encoding_ = encodings.fromLyXName(encodingStr_);
  53         if (!encoding_ && !encodingStr_.empty()) {
  54                 encoding_ = encodings.fromLyXName("iso8859-1");
  55                 LYXERR0("Unknown encoding " << encodingStr_);
  56         }
  57         return true;
  58 }
  59
  60 bool Language::internalFontEncoding() const
  61 {
  62         // FIXME: list incomplete
  63         // FIXME: instead of hardcoding, this
  64         // should go to the languages file
  65         return lang_ == "hebrew"
  66                 || lang_ == "greek"
  67                 || lang_ == "polutonikogreek";
  68 }
  69
  70
  71 void Languages::read(FileName const & filename)
  72 {
  73         Lexer lex;
  74         lex.setFile(filename);
  75         lex.setContext("Languages::read");
  76         while (1) {
  77                 Language l;
  78                 l.read(lex);
  79                 if (!lex)
  80                         break;
  81                 LYXERR(Debug::INFO, "Reading language " << l.lang());
  82                 if (l.lang() == "latex")
  83                         latex_lang = l;
  84                 else if (l.lang() == "ignore")
  85                         ignore_lang = l;
  86                 else
  87                         languagelist[l.lang()] = l;
  88         }
  89
  90         default_language = getLanguage(lyxrc.default_language);
  91         if (!default_language) {
  92                 LYXERR0("Default language \"" << lyxrc.default_language
  93                        << "\" not found!");
  94                 default_language = getLanguage("english");
  95                 if (!default_language)
  96                         default_language = &(*languagelist.begin()).second;
  97                 LYXERR0("Using \"" << default_language->lang() << "\" instead!");
  98         }
  99 }
 100
 101
 102 Language const * Languages::getLanguage(string const & language) const
 103 {
 104         if (language == "reset")
 105                 return reset_language;
 106         if (language == "ignore")
 107                 return ignore_language;
 108         const_iterator it = languagelist.find(language);
 109         return it == languagelist.end() ? reset_language : &it->second;
 110 }
 111
 112
 113 } // namespace lyx