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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_COCO_PARSER_H__)
#define Coco_COCO_PARSER_H__
#include "Tab.h"
#include "DFA.h"
#include "ParserGen.h"
#include "Scanner.h"
namespace Coco {
class Errors {
public:
int count; // number of errors detected
Errors();
void SynErr(int line, int col, int n);
void Error(int line, int col, const wchar_t *s);
void Warning(int line, int col, const wchar_t *s);
void Warning(const wchar_t *s);
void Exception(const wchar_t *s);
}; // Errors
class Parser {
private:
enum {
_EOF=0,
_ident=1,
_number=2,
_string=3,
_badString=4,
_char=5,
_ddtSym=42,
_optionSym=43
};
int maxT;
Token *dummyToken;
int errDist;
int minErrDist;
void SynErr(int n);
void Get();
void Expect(int n);
bool StartOf(int s);
void ExpectWeak(int n, int follow);
bool WeakSeparator(int n, int syFol, int repFol);
public:
Scanner *scanner;
Errors *errors;
Token *t; // last recognized token
Token *la; // lookahead token
int id;
int str;
FILE* trace; // other Coco objects referenced in this ATG
Tab *tab;
DFA *dfa;
ParserGen *pgen;
bool genScanner;
wchar_t* tokenString; // used in declarations of literal tokens
wchar_t* noString; // used in declarations of literal tokens
// This method will be called by the contructor if it exits.
// This support is specific to the C++ version of Coco/R.
void Init() {
tab = NULL;
dfa = NULL;
pgen = NULL;
id = 0;
str = 1;
tokenString = NULL;
noString = coco_string_create(L"-none-");
}
// Uncomment this method if cleanup is necessary,
// this method will be called by the destructor if it exists.
// This support is specific to the C++ version of Coco/R.
// void Destroy() {
// nothing to do
// }
/*-------------------------------------------------------------------------*/
Parser(Scanner *scanner);
~Parser();
void SemErr(const wchar_t* msg);
void Coco();
void SetDecl();
void TokenDecl(int typ);
void TokenExpr(Graph* &g);
void Set(CharSet* &s);
void AttrDecl(Symbol *sym);
void SemText(Position* &pos);
void Expression(Graph* &g);
void SimSet(CharSet* &s);
void Char(int &n);
void Sym(wchar_t* &name, int &kind);
void Term(Graph* &g);
void Resolver(Position* &pos);
void Factor(Graph* &g);
void Attribs(Node *p);
void Condition();
void TokenTerm(Graph* &g);
void TokenFactor(Graph* &g);
void Parse();
}; // end Parser
} // namespace
#endif
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