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locale

Perl 5 version 20.1 documentation
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locale

NAME

locale - Perl pragma to use or avoid POSIX locales for built-in operations

SYNOPSIS

  1. @x = sort @y; # Native-platform/Unicode code point sort order
  2. {
  3. use locale;
  4. @x = sort @y; # Locale-defined sort order
  5. }
  6. @x = sort @y; # Native-platform/Unicode code point sort order
  7. # 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.

See perllocale for more detailed information on how Perl supports locales.

On systems that don't have locales, this pragma will cause your operations to behave as if in the "C" locale; attempts to change the locale will fail.