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

NAME
       English - use nice English (or awk) names for ugly punctuation
       variables

SYNOPSIS
           use English qw( -nomatchvars ) ;  # 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 $INPUTRECORDSEPARATOR 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( -nomatchvars ) ;

       .  It is especially important to do this in modules to avoid penalizing
       all applications which use them.



perl v5.16.3                      2013-03-04                      English(3pm)