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8ec569479f
Up until now, we've had a policy of only marking certain variables in the PostgreSQL header files with PGDLLIMPORT, but now we've decided to mark them all. This means that extensions running on Windows should no longer operate at a disadvantage as compared to extensions running on Linux: if the variable is present in a header file, it should be accessible. Discussion: http://postgr.es/m/CA+TgmoYanc1_FSfimhgiWSqVyP5KKmh5NP2BWNwDhO8Pg2vGYQ@mail.gmail.com
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/*-------------------------------------------------------------------------
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*
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* parser.h
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* Definitions for the "raw" parser (flex and bison phases only)
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*
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* This is the external API for the raw lexing/parsing functions.
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*
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* Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/parser/parser.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PARSER_H
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#define PARSER_H
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#include "nodes/parsenodes.h"
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/*
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* RawParseMode determines the form of the string that raw_parser() accepts:
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*
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* RAW_PARSE_DEFAULT: parse a semicolon-separated list of SQL commands,
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* and return a List of RawStmt nodes.
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*
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* RAW_PARSE_TYPE_NAME: parse a type name, and return a one-element List
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* containing a TypeName node.
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*
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* RAW_PARSE_PLPGSQL_EXPR: parse a PL/pgSQL expression, and return
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* a one-element List containing a RawStmt node.
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*
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* RAW_PARSE_PLPGSQL_ASSIGNn: parse a PL/pgSQL assignment statement,
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* and return a one-element List containing a RawStmt node. "n"
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* gives the number of dotted names comprising the target ColumnRef.
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*/
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typedef enum
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{
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RAW_PARSE_DEFAULT = 0,
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RAW_PARSE_TYPE_NAME,
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RAW_PARSE_PLPGSQL_EXPR,
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RAW_PARSE_PLPGSQL_ASSIGN1,
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RAW_PARSE_PLPGSQL_ASSIGN2,
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RAW_PARSE_PLPGSQL_ASSIGN3
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} RawParseMode;
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/* Values for the backslash_quote GUC */
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typedef enum
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{
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BACKSLASH_QUOTE_OFF,
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BACKSLASH_QUOTE_ON,
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BACKSLASH_QUOTE_SAFE_ENCODING
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} BackslashQuoteType;
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/* GUC variables in scan.l (every one of these is a bad idea :-() */
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extern PGDLLIMPORT int backslash_quote;
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extern PGDLLIMPORT bool escape_string_warning;
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extern PGDLLIMPORT bool standard_conforming_strings;
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/* Primary entry point for the raw parsing functions */
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extern List *raw_parser(const char *str, RawParseMode mode);
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/* Utility functions exported by gram.y (perhaps these should be elsewhere) */
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extern List *SystemFuncName(char *name);
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extern TypeName *SystemTypeName(char *name);
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#endif /* PARSER_H */
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