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AtomParser.h

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/***************************************************************************
 *cr                                                                       
 *cr            (C) Copyright 1995-2011 The Board of Trustees of the           
 *cr                        University of Illinois                       
 *cr                         All Rights Reserved                        
 *cr                                                                   
 ***************************************************************************/

/***************************************************************************
 * RCS INFORMATION:
 *
 *      $RCSfile: AtomParser.h,v $
 *      $Author: johns $        $Locker:  $             $State: Exp $
 *      $Revision: 1.25 $       $Date: 2012/02/01 22:42:51 $
 *
 ***************************************************************************
 * DESCRIPTION:
 *   Basic data types for the yacc/lex interface and for the parse tree
 *
 ***************************************************************************/
#ifndef ATOMPARSER_H
#define ATOMPARSER_H

#include "JString.h"

// the idea about strings is that some can be regexed.
//  "This" is a double-quoted string  -- can do regex
//  'this' is a single-quoted string  -- don't do regex
//   this  is a raw, or unquoted, string -- don't do regex
enum  atomparser_stringtype {DQ_STRING, SQ_STRING, RAW_STRING};

typedef struct atomparser_string {
  atomparser_stringtype st;
  JString s;
} atomparser_string;

typedef struct atomparser_node {
   int node_type;   

   int extra_type;  

   double dval;     
   int ival;        
   atomparser_string sele;  
   atomparser_node *left;   
   atomparser_node *right;  

   atomparser_node(int nnode_t, int nextra_t = -1) {
      node_type = nnode_t;
      extra_type = nextra_t;
      left = NULL;
      right = NULL;
   }

   ~atomparser_node(void) {  // destructor
      if (left)
        delete left;
      left=NULL;

      if (right) 
        delete right;
      right=NULL;
   }
} atomparser_node;

extern atomparser_node *atomparser_result;

int atomparser_yylookup(const char *s, int len);

extern char *atomparser_yystring;

extern class SymbolTable *atomparser_symbols;

#endif

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