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) 1996-2024, 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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