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dffd8cac3d
- full support for IW (ISO week) and vice versa conversion for IW too
(the to_char 'week' support is now complete and I hope correct).
Thomas, I use for IW code from timestamp.c, for this I create separate
function date2isoweek() from original 'case DTK_WEEK:' code in the
timestamp_part(). I mean will better use one code for same feature in
date_part() and in to_char(). The isoweek2date() is added to timestamp.c
too. Right?
IMHO in 7.1 will all to_char's features complete. It is cca 41 templates
for date/time and cca 21 for numbers.
* to_ascii:
- gcc, is it correct now? :-)
In the patch is documentation for to_char's IW and for to_ascii().
Karel
145 lines
3.5 KiB
C
145 lines
3.5 KiB
C
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/* -----------------------------------------------------------------------
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* pg_locale.c
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*
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/pg_locale.c,v 1.6 2000/08/29 04:41:47 momjian Exp $
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*
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*
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* Portions Copyright (c) 1999-2000, PostgreSQL, Inc
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*
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* The PostgreSQL locale utils.
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*
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* Karel Zak - Zakkr
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*
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* -----------------------------------------------------------------------
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*/
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#include <stdio.h>
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#include "postgres.h"
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#ifdef USE_LOCALE
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#include <locale.h>
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#include "utils/pg_locale.h"
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/* #define DEBUG_LOCALE_UTILS */
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static struct lconv *CurrentLocaleConv = NULL;
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/*------
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* Return in PG_LocaleCategories current locale setting
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*------
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*/
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PG_LocaleCategories *
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PGLC_current(PG_LocaleCategories * lc)
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{
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lc->lang = getenv("LANG");
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lc->lc_ctype = setlocale(LC_CTYPE, NULL);
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lc->lc_numeric = setlocale(LC_NUMERIC, NULL);
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lc->lc_time = setlocale(LC_TIME, NULL);
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lc->lc_collate = setlocale(LC_COLLATE, NULL);
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lc->lc_monetary = setlocale(LC_MONETARY, NULL);
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#ifdef LC_MESSAGES
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lc->lc_messages = setlocale(LC_MESSAGES, NULL);
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#endif
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return lc;
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}
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#ifdef DEBUG_LOCALE_UTILS
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/*------
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* Print a PG_LocaleCategories struct as DEBUG
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*------
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*/
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PG_LocaleCategories *
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PGLC_debug_lc(PG_LocaleCategories * lc)
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{
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#ifdef LC_MESSAGES
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elog(DEBUG, "CURRENT LOCALE ENVIRONMENT:\n\nLANG: \t%s\nLC_CTYPE:\t%s\nLC_NUMERIC:\t%s\nLC_TIME:\t%s\nLC_COLLATE:\t%s\nLC_MONETARY:\t%s\nLC_MESSAGES:\t%s\n",
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#else
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elog(DEBUG, "CURRENT LOCALE ENVIRONMENT:\n\nLANG: \t%s\nLC_CTYPE:\t%s\nLC_NUMERIC:\t%s\nLC_TIME:\t%s\nLC_COLLATE:\t%s\nLC_MONETARY:\t%s\n",
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#endif
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lc->lang,
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lc->lc_ctype,
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lc->lc_numeric,
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lc->lc_time,
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lc->lc_collate,
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lc->lc_monetary
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#ifdef LC_MESSAGES
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, lc->lc_messages
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#endif
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);
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return lc;
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}
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#endif
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/*------
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* Set locales via a PG_LocaleCategories struct
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*------
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*/
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PG_LocaleCategories *
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PGLC_setlocale(PG_LocaleCategories * lc)
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{
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if (!setlocale(LC_CTYPE, lc->lc_ctype))
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elog(NOTICE, "pg_setlocale(): 'LC_CTYPE=%s' cannot be honored.", lc->lc_ctype);
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if (!setlocale(LC_NUMERIC, lc->lc_numeric))
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elog(NOTICE, "pg_setlocale(): 'LC_NUMERIC=%s' cannot be honored.", lc->lc_numeric);
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if (!setlocale(LC_TIME, lc->lc_time))
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elog(NOTICE, "pg_setlocale(): 'LC_TIME=%s' cannot be honored.", lc->lc_time);
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if (!setlocale(LC_COLLATE, lc->lc_collate))
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elog(NOTICE, "pg_setlocale(): 'LC_COLLATE=%s' cannot be honored.", lc->lc_collate);
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if (!setlocale(LC_MONETARY, lc->lc_monetary))
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elog(NOTICE, "pg_setlocale(): 'LC_MONETARY=%s' cannot be honored.", lc->lc_monetary);
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#ifdef LC_MESSAGES
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if (!setlocale(LC_MESSAGES, lc->lc_messages))
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elog(NOTICE, "pg_setlocale(): 'LC_MESSAGE=%s' cannot be honored.", lc->lc_messages);
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#endif
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return lc;
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}
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/*------
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* Return the POSIX lconv struct (contains number/money formatting information)
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* with locale information for *all* categories.
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* => Returned lconv is *independent* on current locale catogories setting - in
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* contrast to standard localeconv().
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*
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* ! libc prepare memory space for lconv itself and all returned strings in
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* lconv are *static strings*.
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*------
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*/
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struct lconv *
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PGLC_localeconv(void)
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{
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PG_LocaleCategories lc;
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if (CurrentLocaleConv)
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return CurrentLocaleConv;
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/* Save current locale setting to lc */
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PGLC_current(&lc);
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/* Set all locale category for current lang */
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setlocale(LC_ALL, "");
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/* Get numeric formatting information */
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CurrentLocaleConv = localeconv();
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/* Set previous original locale */
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PGLC_setlocale(&lc);
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return CurrentLocaleConv;
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}
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#endif /* USE_LOCALE */
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