/*
* Set up for a new numeric locale.
*/
void
Perl_new_numeric(pTHX_ const char *newnum)
{
#ifdef USE_LOCALE_NUMERIC
dVAR;
if (! newnum) {
Safefree(PL_numeric_name);
PL_numeric_name = NULL;
PL_numeric_standard = TRUE;
PL_numeric_local = TRUE;
return;
}
if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) {
Safefree(PL_numeric_name);
PL_numeric_name = stdize_locale(savepv(newnum));
PL_numeric_standard = ((*newnum == 'C' && newnum[1] == '\0')
|| strEQ(newnum, "POSIX"));
PL_numeric_local = TRUE;
set_numeric_radix();
}
#endif /* USE_LOCALE_NUMERIC */
}
/*
* Set up for a new collation locale.
*/
void
Perl_new_collate(pTHX_ const char *newcoll)
{
#ifdef USE_LOCALE_COLLATE
dVAR;
if (! newcoll) {
if (PL_collation_name) {
++PL_collation_ix;
Safefree(PL_collation_name);
PL_collation_name = NULL;
}
PL_collation_standard = TRUE;
PL_collxfrm_base = 0;
PL_collxfrm_mult = 2;
return;
}
if (! PL_collation_name || strNE(PL_collation_name, newcoll)) {
++PL_collation_ix;
Safefree(PL_collation_name);
PL_collation_name = stdize_locale(savepv(newcoll));
PL_collation_standard = ((*newcoll == 'C' && newcoll[1] == '\0')
|| strEQ(newcoll, "POSIX"));
{
/* 2: at most so many chars ('a', 'b'). */
/* 50: surely no system expands a char more. */
#define XFRMBUFSIZE (2 * 50)
char xbuf[XFRMBUFSIZE];
const Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE);
const Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE);
const SSize_t mult = fb - fa;
if (mult < 1 && !(fa == 0 && fb == 0))
Perl_croak(aTHX_ "panic: strxfrm() gets absurd - a => %"UVuf", ab => %"UVuf,
(UV) fa, (UV) fb);
PL_collxfrm_base = (fa > (Size_t)mult) ? (fa - mult) : 0;
PL_collxfrm_mult = mult;
}
}
#endif /* USE_LOCALE_COLLATE */
}
