parser.h File Reference

#include "nodes/parsenodes.h"

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Enumerations
enum	RawParseMode {   RAW_PARSE_DEFAULT = 0 , RAW_PARSE_TYPE_NAME , RAW_PARSE_PLPGSQL_EXPR , RAW_PARSE_PLPGSQL_ASSIGN1 ,   RAW_PARSE_PLPGSQL_ASSIGN2 , RAW_PARSE_PLPGSQL_ASSIGN3 }
enum	BackslashQuoteType { BACKSLASH_QUOTE_OFF , BACKSLASH_QUOTE_ON , BACKSLASH_QUOTE_SAFE_ENCODING }

Functions
List *	raw_parser (const char *str, RawParseMode mode)
List *	SystemFuncName (char *name)
TypeName *	SystemTypeName (char *name)

Variables
PGDLLIMPORT int	backslash_quote
PGDLLIMPORT bool	escape_string_warning
PGDLLIMPORT bool	standard_conforming_strings

Enumeration Type Documentation

BackslashQuoteType

enum BackslashQuoteType

Enumerator
BACKSLASH_QUOTE_OFF
BACKSLASH_QUOTE_ON
BACKSLASH_QUOTE_SAFE_ENCODING

Definition at line 48 of file parser.h.

{
    BACKSLASH_QUOTE_OFF,
    BACKSLASH_QUOTE_ON,
    BACKSLASH_QUOTE_SAFE_ENCODING,
}           BackslashQuoteType;

RawParseMode

enum RawParseMode

Enumerator
RAW_PARSE_DEFAULT
RAW_PARSE_TYPE_NAME
RAW_PARSE_PLPGSQL_EXPR
RAW_PARSE_PLPGSQL_ASSIGN1
RAW_PARSE_PLPGSQL_ASSIGN2
RAW_PARSE_PLPGSQL_ASSIGN3

Definition at line 37 of file parser.h.

{
    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;

Function Documentation

raw_parser()

List * raw_parser	(	const char *	str,
		RawParseMode	mode
	)

Definition at line 42 of file parser.c.

{
    core_yyscan_t yyscanner;
    base_yy_extra_type yyextra;
    int         yyresult;
 
    /* initialize the flex scanner */
    yyscanner = scanner_init(str, &yyextra.core_yy_extra,
                             &ScanKeywords, ScanKeywordTokens);
 
    /* base_yylex() only needs us to initialize the lookahead token, if any */
    if (mode == RAW_PARSE_DEFAULT)
        yyextra.have_lookahead = false;
    else
    {
        /* this array is indexed by RawParseMode enum */
        static const int mode_token[] = {
            [RAW_PARSE_DEFAULT] = 0,
            [RAW_PARSE_TYPE_NAME] = MODE_TYPE_NAME,
            [RAW_PARSE_PLPGSQL_EXPR] = MODE_PLPGSQL_EXPR,
            [RAW_PARSE_PLPGSQL_ASSIGN1] = MODE_PLPGSQL_ASSIGN1,
            [RAW_PARSE_PLPGSQL_ASSIGN2] = MODE_PLPGSQL_ASSIGN2,
            [RAW_PARSE_PLPGSQL_ASSIGN3] = MODE_PLPGSQL_ASSIGN3,
        };
 
        yyextra.have_lookahead = true;
        yyextra.lookahead_token = mode_token[mode];
        yyextra.lookahead_yylloc = 0;
        yyextra.lookahead_end = NULL;
    }
 
    /* initialize the bison parser */
    parser_init(&yyextra);
 
    /* Parse! */
    yyresult = base_yyparse(yyscanner);
 
    /* Clean up (release memory) */
    scanner_finish(yyscanner);
 
    if (yyresult)               /* error */
        return NIL;
 
    return yyextra.parsetree;
}

References base_yyparse(), mode, NIL, parser_init(), RAW_PARSE_DEFAULT, RAW_PARSE_PLPGSQL_ASSIGN1, RAW_PARSE_PLPGSQL_ASSIGN2, RAW_PARSE_PLPGSQL_ASSIGN3, RAW_PARSE_PLPGSQL_EXPR, RAW_PARSE_TYPE_NAME, ScanKeywords, ScanKeywordTokens, scanner_finish(), scanner_init(), str, and yyextra.

Referenced by _SPI_prepare_oneshot_plan(), _SPI_prepare_plan(), ATPostAlterTypeParse(), pg_parse_query(), and typeStringToTypeName().

SystemFuncName()

List * SystemFuncName

(

char *

name

)

Referenced by CreateFKCheckTrigger(), createForeignKeyActionTriggers(), index_constraint_create(), transformColumnDefinition(), and transformRangeFunction().

SystemTypeName()

TypeName * SystemTypeName

(

char *

name

)

Referenced by transformColumnDefinition().

Variable Documentation

backslash_quote

PGDLLIMPORT int backslash_quote

extern

Definition at line 68 of file scan.l.

Referenced by scanner_init().

escape_string_warning

PGDLLIMPORT bool escape_string_warning

extern

Definition at line 69 of file scan.l.

Referenced by scanner_init().

standard_conforming_strings

PGDLLIMPORT bool standard_conforming_strings

extern

Definition at line 70 of file scan.l.

Referenced by scanner_init(), and simple_quote_literal().