| | man : English(3p)
English(3p) Perl Programmers Reference Guide English(3p)
NAME
English - use nice English (or awk) names for ugly
punctuation variables
SYNOPSIS
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
use English;
...
if ($ERRNO =~ /denied/) { ... }
DESCRIPTION
This module provides aliases for the built-in variables
whose names no one seems to like to read. Variables with
side-effects which get triggered just by accessing them
(like $0) will still be affected.
For those variables that have an awk version, both long
and short English alternatives are provided. For example,
the $/ variable can be referred to either $RS or
$INPUT_RECORD_SEPARATOR if you are using the English
module.
See perlvar for a complete list of these.
PERFORMANCE
This module can provoke sizeable inefficiencies for
regular expressions, due to unfortunate implementation
details. If performance matters in your application and
you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing
use English qw( -no_match_vars ) ;
. It is especially important to do this in modules to
avoid penalizing all applications which use them.
perl v5.10.0 2008-09-30 1
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