ops(3pm) [centos man page]

ops(3pm)						 Perl Programmers Reference Guide						  ops(3pm)

NAME

       ops - Perl pragma to restrict unsafe operations when compiling

SYNOPSIS

	 perl -Mops=:default ...    # only allow reasonably safe operations

	 perl -M-ops=system ...     # disable the 'system' opcode

DESCRIPTION

       Since the "ops" pragma currently has an irreversible global effect, it is only of significant practical use with the "-M" option on the
       command line.

       See the Opcode module for information about opcodes, optags, opmasks and important information about safety.

SEE ALSO

       Opcode, Safe, perlrun

perl v5.16.3							    2013-02-26								  ops(3pm)

locale(3pm)						 Perl Programmers Reference Guide					       locale(3pm)

NAME

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

SYNOPSIS

	   @x = sort @y;       # Unicode sorting order
	   {
	       use locale;
	       @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,

	   use locale ':not_characters';

       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 locale ':not_characters';
	   use open ":locale";		 # Convert I/O to/from Unicode
	   use POSIX qw(locale_h);	 # Import the LC_ALL constant
	   setlocale(LC_ALL, "");	 # Required for the next statement
					 # to take effect
	   printf "%.2f
", 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.

NOTE

       If your system does not support locales, then loading this module will cause the program to die with a message:

	   "Your vendor does not support locales, you cannot use the locale
	   module."

perl v5.18.2							    2013-11-04							       locale(3pm)