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Prevent locale-aware handling of upper, lower, and initcap when the

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locale is C.

Backpatch to 8.0.X because some operating systems were throwing errors
for such operations, rather than ignoring the locale when it was C.
This commit is contained in:
Bruce Momjian
2005-03-16 00:02:49 +00:00
parent 963ffe4cc4
commit 494f30c953
3 changed files with 37 additions and 9 deletions
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29
src/backend/utils/adt/pg_locale.c
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@ -4,7 +4,7 @@
*
* Portions Copyright (c) 2002-2005, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/utils/adt/pg_locale.c,v 1.30 2005/01/01 05:43:07 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/pg_locale.c,v 1.31 2005/03/16 00:02:49 momjian Exp $
*
*-----------------------------------------------------------------------
*/
@ -196,6 +196,33 @@ lc_collate_is_c(void)
}
/*
* We'd like to cache whether LC_CTYPE is C (or POSIX), so we can
* optimize a few code paths in various places.
*/
bool
lc_ctype_is_c(void)
{
/* Cache result so we only have to compute it once */
static int result = -1;
char *localeptr;
if (result >= 0)
return (bool) result;
localeptr = setlocale(LC_CTYPE, NULL);
if (!localeptr)
elog(ERROR, "invalid LC_CTYPE setting");
if (strcmp(localeptr, "C") == 0)
result = true;
else if (strcmp(localeptr, "POSIX") == 0)
result = true;
else
result = false;
return (bool) result;
}
/*
* Frees the malloced content of a struct lconv. (But not the struct
* itself.)