source/shapesscanner.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 "sourcelocation.h"
  22 #include "charptrless.h"
  23 #include "elementarylength.h"
  24
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include <stack>
  28 #include <map>
  29 #include <set>
  30 #include <list>
  31 #include <string>
  32
  33 #ifndef FLEXINT_H                                                               // Else *FlexLexer will be defined twice
  34 #       undef yyFlexLexer
  35 #       define yyFlexLexer shapesFlexLexer
  36 #       include <FlexLexer.h>
  37 #endif
  38
  39 class ShapesScanner : public shapesFlexLexer
  40 {
  41         std::stack< yy_buffer_state * > stateStack;
  42         std::stack< ::Shapes::Ast::SourceLocation > locStack;
  43         std::stack< size_t > pathCountStack;
  44         unsigned int quoteDepth;
  45         bool moreState;
  46         int lastleng;
  47         void more( );
  48         std::map< const char *, double, charPtrLess > unitTable;
  49         const char * newUnitName;
  50         std::set< const Shapes::Ast::FileID *, Shapes::Ast::FileIDPtrLess > neededFiles;
  51         std::string sourceDir_;
  52         std::list< std::string > needSearchPath;
  53         bool inPrelude_;
  54         std::istream * preludeFile_;
  55         std::list< std::string >::const_iterator preludeIterator_;
  56         std::list< std::pair< std::istream *, const Shapes::Ast::FileID * > > yyinQueue_;
  57         bool showFiles;
  58         bool randSeedSet;
  59         std::list< std::pair< char *, size_t > > dataStringChunks_;
  60         size_t dataStringTotalLength_;
  61         bool interactive_;
  62  public:
  63         //      Ast::SourceLocation loc;
  64         ShapesScanner( );
  65         virtual ~ShapesScanner( );
  66         void setInteractive( bool interactive );
  67         void start( );
  68         void queueStream( std::istream * is, const Shapes::Ast::FileID * yyinFile );
  69         void setSourceDir( const std::string & sourceDir );
  70         void push_backNeedPath( const std::string & path );
  71         std::string searchFile( const std::string & suffix ) const;
  72         std::string searchFile( const std::string & suffix, struct stat * dstStat ) const;
  73         void setShowFiles( bool _showFiles );
  74         virtual int yylex( );
  75         void doBeforeEachAction( );
  76
  77         double lookupUnitFactor( const char * name ) const;
  78         Shapes::Concrete::Length strtoLength( const char * str ) const;
  79  private:
  80         std::string currentNeedFile;
  81         size_t currentNeedPushCount;
  82         bool currentNeedIsNeed;
  83         void push_frontNeedPath( const std::string & path );
  84         void pop_frontNeedPath( );
  85         void doInclusion( );
  86         void rinseString( );
  87         void concatenateDataString( );
  88         std::string needpathWithSuffix( const std::string & needpath, const std::string & suffix ) const;
  89 };