blob: 6c331ad338d8c904eb896464b21fd9dfdc0a43c9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*-------------------------------------------------------------------------
*
* parser.c
* Main entry point/driver for PostgreSQL grammar
*
* Note that the grammar is not allowed to perform any table access
* (since we need to be able to do basic parsing even while inside an
* aborted transaction). Therefore, the data structures returned by
* the grammar are "raw" parsetrees that still need to be analyzed by
* analyze.c and related files.
*
*
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parser.c,v 1.65 2006/03/07 01:00:17 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "parser/gramparse.h"
#include "parser/parser.h"
List *parsetree; /* result of parsing is left here */
/*
* raw_parser
* Given a query in string form, do lexical and grammatical analysis.
*
* Returns a list of raw (un-analyzed) parse trees.
*/
List *
raw_parser(const char *str)
{
int yyresult;
parsetree = NIL; /* in case grammar forgets to set it */
scanner_init(str);
parser_init();
yyresult = base_yyparse();
scanner_finish();
if (yyresult) /* error */
return NIL;
return parsetree;
}
|
