source/texscanner.h

   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 #pragma once
  20
  21 #include <string>
  22 #include <vector>
  23
  24 #ifndef FLEXINT_H                                                               // Else *FlexLexer will be defined twice
  25 #       undef yyFlexLexer
  26 #       define yyFlexLexer texFlexLexer
  27 #       include <FlexLexer.h>
  28 #endif
  29
  30 class TeXScanner : public texFlexLexer
  31 {
  32 public:
  33         typedef enum { BRACE = 0, BRACKET, BEGIN_END } Delimiter;
  34         typedef int UnionType;
  35         UnionType yylval;
  36 protected:
  37         std::vector< Delimiter > delimStack;
  38
  39 public:
  40         TeXScanner( );
  41         virtual int yylex( );
  42
  43         void check( const std::string & str );
  44
  45 protected:
  46         const char * opening( Delimiter delim ) const;
  47         const char * closing( Delimiter delim ) const;
  48 };