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Diffstat (limited to 'src/include/parser/parser.h')
-rw-r--r-- | src/include/parser/parser.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/include/parser/parser.h b/src/include/parser/parser.h new file mode 100644 index 0000000..828150f --- /dev/null +++ b/src/include/parser/parser.h @@ -0,0 +1,68 @@ +/*------------------------------------------------------------------------- + * + * parser.h + * Definitions for the "raw" parser (flex and bison phases only) + * + * This is the external API for the raw lexing/parsing functions. + * + * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/parser/parser.h + * + *------------------------------------------------------------------------- + */ +#ifndef PARSER_H +#define PARSER_H + +#include "nodes/parsenodes.h" + + +/* + * RawParseMode determines the form of the string that raw_parser() accepts: + * + * RAW_PARSE_DEFAULT: parse a semicolon-separated list of SQL commands, + * and return a List of RawStmt nodes. + * + * RAW_PARSE_TYPE_NAME: parse a type name, and return a one-element List + * containing a TypeName node. + * + * RAW_PARSE_PLPGSQL_EXPR: parse a PL/pgSQL expression, and return + * a one-element List containing a RawStmt node. + * + * RAW_PARSE_PLPGSQL_ASSIGNn: parse a PL/pgSQL assignment statement, + * and return a one-element List containing a RawStmt node. "n" + * gives the number of dotted names comprising the target ColumnRef. + */ +typedef enum +{ + RAW_PARSE_DEFAULT = 0, + RAW_PARSE_TYPE_NAME, + RAW_PARSE_PLPGSQL_EXPR, + RAW_PARSE_PLPGSQL_ASSIGN1, + RAW_PARSE_PLPGSQL_ASSIGN2, + RAW_PARSE_PLPGSQL_ASSIGN3 +} RawParseMode; + +/* Values for the backslash_quote GUC */ +typedef enum +{ + BACKSLASH_QUOTE_OFF, + BACKSLASH_QUOTE_ON, + BACKSLASH_QUOTE_SAFE_ENCODING +} BackslashQuoteType; + +/* GUC variables in scan.l (every one of these is a bad idea :-() */ +extern PGDLLIMPORT int backslash_quote; +extern PGDLLIMPORT bool escape_string_warning; +extern PGDLLIMPORT bool standard_conforming_strings; + + +/* Primary entry point for the raw parsing functions */ +extern List *raw_parser(const char *str, RawParseMode mode); + +/* Utility functions exported by gram.y (perhaps these should be elsewhere) */ +extern List *SystemFuncName(char *name); +extern TypeName *SystemTypeName(char *name); + +#endif /* PARSER_H */ |