postgresql/src/include/parser/gramparse.h

/*-------------------------------------------------------------------------
 *
 * gramparse.h
 *	  Declarations for routines exported from lexer and parser files.
 *
 *
 * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $PostgreSQL: pgsql/src/include/parser/gramparse.h,v 1.31 2004/12/31 22:03:38 pgsql Exp $
 *
 *-------------------------------------------------------------------------
 */

#ifndef GRAMPARSE_H
#define GRAMPARSE_H

#include "nodes/parsenodes.h"


/* from parser.c */
extern int	yylex(void);

/* from scan.l */
extern void scanner_init(const char *str);
extern void scanner_finish(void);
extern int	base_yylex(void);
extern void yyerror(const char *message);

/* from gram.y */
extern void parser_init(void);
extern int	yyparse(void);
extern List *SystemFuncName(char *name);
extern TypeName *SystemTypeName(char *name);
extern bool exprIsNullConstant(Node *arg);

#endif   /* GRAMPARSE_H */
More compile cleanups 1996-11-08 15:46:33 -05:00			`/*-------------------------------------------------------------------------`
			`*`
Change my-function-name-- to my_function_name, and optimizer renames. 1999-02-13 18:22:53 -05:00			`* gramparse.h`
First cut at full support for OUTER JOINs. There are still a few loose ends to clean up (see my message of same date to pghackers), but mostly it works. INITDB REQUIRED! 2000-09-12 17:07:18 -04:00			`* Declarations for routines exported from lexer and parser files.`
			`*`
More compile cleanups 1996-11-08 15:46:33 -05:00			`*`
Tag appropriate files for rc3 Also performed an initial run through of upgrading our Copyright date to extend to 2005 ... first run here was very simple ... change everything where: grep 1996-2004 && the word 'Copyright' ... scanned through the generated list with 'less' first, and after, to make sure that I only picked up the right entries ... 2004-12-31 17:04:05 -05:00			`* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group`
Add: * Portions Copyright (c) 1996-2000, PostgreSQL, Inc to all files copyright Regents of Berkeley. Man, that's a lot of files. 2000-01-26 00:58:53 -05:00			`* Portions Copyright (c) 1994, Regents of the University of California`
More compile cleanups 1996-11-08 15:46:33 -05:00			`*`
Tag appropriate files for rc3 Also performed an initial run through of upgrading our Copyright date to extend to 2005 ... first run here was very simple ... change everything where: grep 1996-2004 && the word 'Copyright' ... scanned through the generated list with 'less' first, and after, to make sure that I only picked up the right entries ... 2004-12-31 17:04:05 -05:00			`* $PostgreSQL: pgsql/src/include/parser/gramparse.h,v 1.31 2004/12/31 22:03:38 pgsql Exp $`
More compile cleanups 1996-11-08 15:46:33 -05:00			`*`
			`*-------------------------------------------------------------------------`
			`*/`

			`#ifndef GRAMPARSE_H`
First cut at full support for OUTER JOINs. There are still a few loose ends to clean up (see my message of same date to pghackers), but mostly it works. INITDB REQUIRED! 2000-09-12 17:07:18 -04:00			`#define GRAMPARSE_H`
More compile cleanups 1996-11-08 15:46:33 -05:00
Retire xlateSqlType/xlateSqlFunc; all type name translations are now handled as special productions. This is needed to keep us honest about user-schema type names that happen to coincide with system type names. Per pghackers discussion 24-Apr. To avoid bloating the keyword list too much, I removed the translations for datetime, timespan, and lztext, all of which were slated for destruction several versions back anyway. 2002-05-02 20:32:19 -04:00			`#include "nodes/parsenodes.h"`
Scanner performance improvements Use flex flags -CF. Pass the to-be-scanned string around as StringInfo type, to avoid querying the length repeatedly. Clean up some code and remove lex-compatibility cruft. Escape backslash sequences inline. Use flex-provided yy_scan_buffer() function to set up input, rather than using myinput(). 2002-04-20 17:56:15 -04:00
Infrastructure for deducing Param types from context, in the same way that the types of untyped string-literal constants are deduced (ie, when coerce_type is applied to 'em, that's what the type must be). Remove the ancient hack of storing the input Param-types array as a global variable, and put the info into ParseState instead. This touches a lot of files because of adjustment of routine parameter lists, but it's really not a large patch. Note: PREPARE statement still insists on exact specification of parameter types, but that could easily be relaxed now, if we wanted to do so. 2003-04-29 18:13:11 -04:00
First cut at full support for OUTER JOINs. There are still a few loose ends to clean up (see my message of same date to pghackers), but mostly it works. INITDB REQUIRED! 2000-09-12 17:07:18 -04:00			`/* from parser.c */`
Clean up longstanding gcc warnings by adding missing extern declarations. 2000-01-20 00:26:54 -05:00			`extern int yylex(void);`
First cut at full support for OUTER JOINs. There are still a few loose ends to clean up (see my message of same date to pghackers), but mostly it works. INITDB REQUIRED! 2000-09-12 17:07:18 -04:00
			`/* from scan.l */`
Put back encoding-conversion step in processing of incoming queries; I had inadvertently omitted it while rearranging things to support length-counted incoming messages. Also, change the parser's API back to accepting a 'char *' query string instead of 'StringInfo', as the latter wasn't buying us anything except overhead. (I think when I put it in I had some notion of making the parser API 8-bit-clean, but seeing that flex depends on null-terminated input, that's not really ever gonna happen.) 2003-04-27 16:09:44 -04:00			`extern void scanner_init(const char *str);`
Scanner performance improvements Use flex flags -CF. Pass the to-be-scanned string around as StringInfo type, to avoid querying the length repeatedly. Clean up some code and remove lex-compatibility cruft. Escape backslash sequences inline. Use flex-provided yy_scan_buffer() function to set up input, rather than using myinput(). 2002-04-20 17:56:15 -04:00			`extern void scanner_finish(void);`
First cut at full support for OUTER JOINs. There are still a few loose ends to clean up (see my message of same date to pghackers), but mostly it works. INITDB REQUIRED! 2000-09-12 17:07:18 -04:00			`extern int base_yylex(void);`
Ye-old pgindent run. Same 4-space tabs. 2000-04-12 13:17:23 -04:00			`extern void yyerror(const char *message);`
More compile cleanups 1996-11-08 15:46:33 -05:00
			`/* from gram.y */`
PREPARE/EXECUTE statements. Patch by Neil Conway, some kibitzing from Tom Lane. 2002-08-27 00:55:12 -04:00			`extern void parser_init(void);`
Another PGINDENT run that changes variable indenting and case label indenting. Also static variable indenting. 1997-09-07 22:41:22 -04:00			`extern int yyparse(void);`
Functions live in namespaces. Qualified function names work, eg SELECT schema1.func2(...). Aggregate names can be qualified at the syntactic level, but the qualification is ignored for the moment. 2002-04-09 16:35:55 -04:00			`extern List SystemFuncName(char name);`
Retire xlateSqlType/xlateSqlFunc; all type name translations are now handled as special productions. This is needed to keep us honest about user-schema type names that happen to coincide with system type names. Per pghackers discussion 24-Apr. To avoid bloating the keyword list too much, I removed the translations for datetime, timespan, and lztext, all of which were slated for destruction several versions back anyway. 2002-05-02 20:32:19 -04:00			`extern TypeName SystemTypeName(char name);`
pgindent run. 2002-09-04 16:31:48 -04:00			`extern bool exprIsNullConstant(Node *arg);`
Another pgindent run. Fixes enum indenting, and improves #endif spacing. Also adds space for one-line comments. 2001-10-28 01:26:15 -05:00
New pgindent run with fixes suggested by Tom. Patch manually reviewed, initdb/regression tests pass. 2001-11-05 12:46:40 -05:00			`#endif /* GRAMPARSE_H */`