English(3p) Perl Programmers Reference Guide English(3p) #

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

NNAAMMEE #

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

SSYYNNOOPPSSIISS #

     use English;
     use English qw( -no_match_vars ) ;  # Avoids regex performance
                                         # penalty in perl 5.18 and
                                         # earlier
     ...
     if ($ERRNO =~ /denied/) { ... }

DDEESSCCRRIIPPTTIIOONN #

 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 aawwkk 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.

PPEERRFFOORRMMAANNCCEE #

 NOTE: This was fixed in perl 5.20.  Mentioning these three variables no
 longer makes a speed difference.  This section still applies if your code
 is to run on perl 5.18 or earlier.

 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 ) ;

 .  IItt iiss eessppeecciiaallllyy iimmppoorrttaanntt ttoo ddoo tthhiiss iinn mmoodduulleess ttoo aavvooiidd ppeennaalliizziinngg
 aallll aapppplliiccaattiioonnss wwhhiicchh uussee tthheemm..

perl v5.36.3 2021-03-02 English(3p)