source/texscanner.cc

   1 /* This file is part of Shapes.
   2  *
   3  * Shapes is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * any later version.
   7  *
   8  * Shapes is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with Shapes.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  * Copyright 2008 Henrik Tidefelt
  17  */
  18
  19 #include "texscanner.h"
  20 #include "strrefdup.h"
  21
  22 #include <sstream>
  23
  24
  25 TeXScanner::TeXScanner( )
  26         : yyFlexLexer( 0, 0 )
  27 { }
  28
  29 void
  30 TeXScanner::check( const std::string & str )
  31 {
  32         delimStack.clear( );
  33         std::istringstream is( str );
  34         switch_streams( & is, 0 );
  35         yylex( );
  36 }
  37
  38 const char *
  39 TeXScanner::opening( TeXScanner::Delimiter delim ) const
  40 {
  41         switch( delim )
  42                 {
  43                 case BRACE:
  44                         return "{";
  45                 case BRACKET:
  46                         return "[";
  47                 case BEGIN_END:
  48                         return "\begin{...}";
  49                 default:
  50                         throw "TeXScanner::opening: Delimiter out of range.";
  51                 }
  52 }
  53
  54 const char *
  55 TeXScanner::closing( TeXScanner::Delimiter delim ) const
  56 {
  57         switch( delim )
  58                 {
  59                 case BRACE:
  60                         return "}";
  61                 case BRACKET:
  62                         return "]";
  63                 case BEGIN_END:
  64                         return "\end{...}";
  65                 default:
  66                         throw "TeXScanner::closing: Delimiter out of range.";
  67                 }
  68 }