parser.h

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/* Copyright (C) 2000, 2001 Stefan Buehler <sbuehler@uni-bremen.de>
 
   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the
   Free Software Foundation; either version 2, or (at your option) any
   later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
   USA. */
 
/* Header file for functions and classes related to parsing the
   control text. */ 
 
#ifndef parser_h
#define parser_h
 
#include "token.h"
 
class MRecord {
public:
  MRecord(const Index id,
          const Array<TokVal>& values,
          const ArrayOfIndex& output,
          const ArrayOfIndex& input)
    : mid(id),
      mvalues( values ),
      moutput( output ),
      minput(  input  )
  { 
    // Initialization of arrays from other array now works correctly.
  }
  Index                  Id()     const { return mid;     }
  const Array<TokVal>& Values() const { return mvalues; }
  const ArrayOfIndex& Output() const { return moutput; }
  const ArrayOfIndex& Input()  const { return minput;  }
 
private:
  Index mid;
  Array<TokVal> mvalues;
  ArrayOfIndex moutput;
  ArrayOfIndex minput;
};
 
 
class SourceText {
public:
 
  SourceText() :  mLine(0), mColumn(0) { /* Nothing to be done here. */ };
 
  void AppendFile(const String& name);
 
  char Current() {
    return mText[mLine][mColumn];
  }
 
  void AdvanceChar();
 
  void AdvanceLine();
 
  const String& File();
 
  Index Line();
 
  Index Column() { return mColumn+1; }
 
  void Init();
 
  bool& LineBreak() { return mLineBreak; }
 
  bool  LineBreak() const { return mLineBreak; }
 
  friend ostream& operator << (ostream& os, const SourceText& text);
 
private:
 
  ArrayOfString mText;
 
  Index mLine;
 
  Index mColumn;
 
  ArrayOfIndex mSfLine;
 
  ArrayOfString mSfName;
 
  bool mLineBreak;
};
 
void parse_main(Array<MRecord>& tasklist, SourceText& text);
 
 
#endif