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From: "Martin J. Laubach" <mjl@CSlab.tuwien.ac.at> 

Subject: [HACKERS] Patch: set date to euro/us postgres/iso/sql

  Here a patch that implements a SET date for use by the datetime
stuff. The syntax is

        SET date TO 'val[,val,...]'

  where val is us (us dates), euro (european dates), postgres,
iso or sql.

  Thomas is working on the integration in his datetime module.
I just needed to get the patch out before it went stale :)
This commit is contained in:
Marc G. Fournier 1997-04-17 13:50:57 +00:00
parent cfe0d67dc1
commit a1f229b19e
3 changed files with 187 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

140
src/backend/tcop/variable.c
View File

@ -1,14 +1,152 @@
/*
* Routines for handling of SET var TO statements
*
* $Id: variable.c,v 1.3 1997/04/17 13:50:30 scrappy Exp $
*
* $Log: variable.c,v $
* Revision 1.3 1997/04/17 13:50:30 scrappy
* From: "Martin J. Laubach" <mjl@CSlab.tuwien.ac.at>
* Subject: [HACKERS] Patch: set date to euro/us postgres/iso/sql
*
* Here a patch that implements a SET date for use by the datetime
* stuff. The syntax is
*
* SET date TO 'val[,val,...]'
*
* where val is us (us dates), euro (european dates), postgres,
* iso or sql.
*
* Thomas is working on the integration in his datetime module.
* I just needed to get the patch out before it went stale :)
*
* Revision 1.1 1997/04/10 16:52:07 mjl
* Initial revision
*/
/*-----------------------------------------------------------------------*/
#include <string.h>
#include "postgres.h"
#include "tcop/variable.h"
/*-----------------------------------------------------------------------*/
#if USE_EURODATES
#define DATE_EURO TRUE
#else
#define DATE_EURO FALSE
#endif
/*-----------------------------------------------------------------------*/
struct PGVariables PGVariables =
{
{ DATE_EURO, Date_Postgres }
};
/*-----------------------------------------------------------------------*/
static const char *get_token(char *buf, int size, const char *str)
{
if(!*str)
return NULL;
/* skip white space */
while(*str && (*str == ' ' || *str == '\t'))
str++;
/* copy until we hit white space or comma or end of string */
while(*str && *str != ' ' && *str != '\t' && *str != ',' && size-- > 1)
*buf++ = *str++;
*buf = '\0';
/* skip white space and comma*/
while(*str && (*str == ' ' || *str == '\t' || *str == ','))
str++;
return str;
}
/*-----------------------------------------------------------------------*/
static bool parse_null(const char *value)
{
return TRUE;
}
static bool parse_date(const char *value)
{
char tok[32];
int dcnt = 0, ecnt = 0;
while(value = get_token(tok, sizeof(tok), value))
{
/* Ugh. Somebody ought to write a table driven version -- mjl */
if(!strcasecmp(tok, "iso"))
{
PGVariables.date.format = Date_ISO;
dcnt++;
}
else if(!strcasecmp(tok, "sql"))
{
PGVariables.date.format = Date_SQL;
dcnt++;
}
else if(!strcasecmp(tok, "postgres"))
{
PGVariables.date.format = Date_Postgres;
dcnt++;
}
else if(!strcasecmp(tok, "euro"))
{
PGVariables.date.euro = TRUE;
ecnt++;
}
else if(!strcasecmp(tok, "us"))
{
PGVariables.date.euro = FALSE;
ecnt++;
}
else
{
elog(WARN, "Bad value for date (%s)", tok);
}
}
if(dcnt > 1 || ecnt > 1)
elog(NOTICE, "Conflicting settings for date");
return TRUE;
}
/*-----------------------------------------------------------------------*/
struct VariableParsers
{
const char *name;
bool (*parser)(const char *);
} VariableParsers[] =
{
{ "date", parse_date },
{ "timezone", parse_null },
{ NULL }
};
/*-----------------------------------------------------------------------*/
bool SetPGVariable(const char *name, const char *value)
{
elog(NOTICE, "Variable %s set to \"%s\"", name, value);
struct VariableParsers *vp;
for(vp = VariableParsers; vp->name; vp++)
{
if(!strcasecmp(vp->name, name))
return (vp->parser)(value);
}
elog(NOTICE, "No such variable %s", name);
return TRUE;
}
/*-----------------------------------------------------------------------*/
const char *GetPGVariable(const char *varName)
{
return NULL;
}
/*-----------------------------------------------------------------------*/

3
src/backend/utils/adt/datetime.c
View File

@ -7,12 +7,13 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.3 1997/04/04 08:55:29 scrappy Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/datetime.c,v 1.4 1997/04/17 13:50:34 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
#include <stdio.h> /* for sprintf() */
#include <string.h>
#include <limits.h>
#include "postgres.h"
#ifdef HAVE_FLOAT_H

46
src/include/tcop/variable.h
View File

@ -1,2 +1,48 @@
/*
* Headers for handling of SET var TO statements
*
* $Id: variable.h,v 1.2 1997/04/17 13:50:57 scrappy Exp $
*
* $Log: variable.h,v $
* Revision 1.2 1997/04/17 13:50:57 scrappy
* From: "Martin J. Laubach" <mjl@CSlab.tuwien.ac.at>
* Subject: [HACKERS] Patch: set date to euro/us postgres/iso/sql
*
* Here a patch that implements a SET date for use by the datetime
* stuff. The syntax is
*
* SET date TO 'val[,val,...]'
*
* where val is us (us dates), euro (european dates), postgres,
* iso or sql.
*
* Thomas is working on the integration in his datetime module.
* I just needed to get the patch out before it went stale :)
*
* Revision 1.1 1997/04/10 16:53:30 mjl
* Initial revision
*
*/
/*-----------------------------------------------------------------------*/
enum DateFormat { Date_Postgres, Date_SQL, Date_ISO };
/*-----------------------------------------------------------------------*/
struct PGVariables
{
struct
{
bool euro;
enum DateFormat format;
} date;
};
extern struct PGVariables PGVariables;
/*-----------------------------------------------------------------------*/
bool SetPGVariable(const char *, const char *);
const char *GetPGVariable(const char *);
/*-----------------------------------------------------------------------*/
bool SetPGVariable(const char *, const char *);
const char *GetPGVariable(const char *);