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/*-------------------------------------------------------------------------
Compiler Generator Coco/R,
Copyright (c) 1990, 2004 Hanspeter Moessenboeck, University of Linz
extended by M. Loeberbauer & A. Woess, Univ. of Linz
ported to C++ by Csaba Balazs, University of Szeged
with improvements by Pat Terry, Rhodes University
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.
As an exception, it is allowed to write an extension of Coco/R that is
used as a plugin in non-free software.
If not otherwise stated, any source code generated by Coco/R (other than
Coco/R itself) does not fall under the GNU General Public License.
-------------------------------------------------------------------------*/
#if !defined(COCO_SYMBOL_H__)
#define COCO_SYMBOL_H__
#include "Position.h"
#include "Scanner.h"
namespace Coco {
class Node;
class BitArray;
class Symbol {
public:
// token kinds
static int fixedToken; // e.g. 'a' ('b' | 'c') (structure of literals)
static int classToken; // e.g. digit {digit} (at least one char class)
static int litToken; // e.g. "while"
static int classLitToken; // e.g. letter {letter} but without literals that have the same structure*/
int n; // symbol number
int typ; // t, nt, pr, unknown, rslv /* ML 29_11_2002 slv added */ /* AW slv --> rslv */
wchar_t *name; // symbol name
Node *graph; // nt: to first node of syntax graph
int tokenKind; // t: token kind (fixedToken, classToken, ...)
bool deletable; // nt: true if nonterminal is deletable
bool firstReady; // nt: true if terminal start symbols have already been computed
BitArray *first; // nt: terminal start symbols
BitArray *follow; // nt: terminal followers
BitArray *nts; // nt: nonterminals whose followers have to be added to this sym
int line; // source text line number of item in this node
Position *attrPos; // nt: position of attributes in source text (or null)
Position *semPos; // pr: pos of semantic action in source text (or null)
// nt: pos of local declarations in source text (or null)
Symbol(int typ, const wchar_t* name, int line);
virtual ~Symbol();
};
}; // namespace
#endif // !defined(COCO_SYMBOL_H__)
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