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/*-------------------------------------------------------------------------
*
* gramparse.h
* Declarations for routines exported from lexer and parser files.
*
*
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/parser/gramparse.h,v 1.35 2006/05/11 19:15:35 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef GRAMPARSE_H
#define GRAMPARSE_H
#include "nodes/parsenodes.h"
/*
* We track token locations in terms of byte offsets from the start of the
* source string, not the column number/line number representation that
* bison uses by default. Also, to minimize overhead we track only one
* location (usually the first token location) for each construct, not
* the beginning and ending locations as bison does by default. It's
* therefore sufficient to make YYLTYPE an int.
*/
#define YYLTYPE int
/* GUC variables in scan.l (every one of these is a bad idea :-() */
extern bool escape_string_warning;
extern bool standard_conforming_strings;
/* from scan.l */
extern void scanner_init(const char *str);
extern void scanner_finish(void);
extern int base_yylex(void);
extern void base_yyerror(const char *message);
/* from gram.y */
extern void parser_init(void);
extern int base_yyparse(void);
extern List *SystemFuncName(char *name);
extern TypeName *SystemTypeName(char *name);
extern bool exprIsNullConstant(Node *arg);
#endif /* GRAMPARSE_H */
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