src/include/parser/gramparse.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * gramparse.h
   4  *        Declarations for routines exported from lexer and parser files.
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $PostgreSQL$
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14
  15 #ifndef GRAMPARSE_H
  16 #define GRAMPARSE_H
  17
  18 #include "nodes/parsenodes.h"
  19
  20 /*
  21  * We track token locations in terms of byte offsets from the start of the
  22  * source string, not the column number/line number representation that
  23  * bison uses by default.  Also, to minimize overhead we track only one
  24  * location (usually the first token location) for each construct, not
  25  * the beginning and ending locations as bison does by default.  It's
  26  * therefore sufficient to make YYLTYPE an int.
  27  */
  28 #define YYLTYPE  int
  29
  30 typedef enum
  31 {
  32         BACKSLASH_QUOTE_OFF,
  33         BACKSLASH_QUOTE_ON,
  34         BACKSLASH_QUOTE_SAFE_ENCODING
  35 } BackslashQuoteType;
  36
  37 /* GUC variables in scan.l (every one of these is a bad idea :-() */
  38 extern int backslash_quote;
  39 extern bool escape_string_warning;
  40 extern bool standard_conforming_strings;
  41
  42
  43 /* from parser.c */
  44 extern int      filtered_base_yylex(void);
  45
  46 /* from scan.l */
  47 extern void scanner_init(const char *str);
  48 extern void scanner_finish(void);
  49 extern int      base_yylex(void);
  50 extern int      scanner_errposition(int location);
  51 extern void base_yyerror(const char *message);
  52
  53 /* from gram.y */
  54 extern void parser_init(void);
  55 extern int      base_yyparse(void);
  56 extern List *SystemFuncName(char *name);
  57 extern TypeName *SystemTypeName(char *name);
  58
  59 #endif   /* GRAMPARSE_H */