NAME
locale - Perl pragma to use or avoid POSIX locales for built-in operations
SYNOPSIS
@x
=
sort
@y
;
# Unicode sorting order
{
@x
=
sort
@y
;
# Locale-defined sorting order
}
@x
=
sort
@y
;
# Unicode sorting order again
DESCRIPTION
This pragma tells the compiler to enable (or disable) the use of POSIX locales for built-in operations (for example, LC_CTYPE for regular expressions, LC_COLLATE for string comparison, and LC_NUMERIC for number formatting). Each "use locale" or "no locale" affects statements to the end of the enclosing BLOCK.
Starting in Perl 5.16, a hybrid mode for this pragma is available,
which enables only the portions of locales that don't affect the character set (that is, all except LC_COLLATE and LC_CTYPE). This is useful when mixing Unicode and locales, including UTF-8 locales.
use
open
":locale"
;
# Convert I/O to/from Unicode
setlocale(LC_ALL,
""
);
# Required for the next statement
# to take effect
printf
"%.2f\n"
, 12345.67'
# Locale-defined formatting
@x
=
sort
@y
;
# Unicode-defined sorting order.
# (Note that you will get better
# results using Unicode::Collate.)
See perllocale for more detailed information on how Perl supports locales.