[ Bron: liblexical-underscore-perl ]
Pakket: liblexical-underscore-perl (0.004-1)
Verwijzigingen voor liblexical-underscore-perl
Debian bronnen:
Het bronpakket liblexical-underscore-perl downloaden:
- [liblexical-underscore-perl_0.004-1.dsc]
- [liblexical-underscore-perl_0.004.orig.tar.gz]
- [liblexical-underscore-perl_0.004-1.debian.tar.xz]
Beheerders:
Externe bronnen:
- Homepage [search.cpan.org]
Vergelijkbare pakketten:
access your caller's lexical underscore
Starting with Perl 5.10, it is possible to create a lexical version of the Perl default variable $_. Certain Perl constructs like the "given" keyword automatically use a lexical $_ rather than the global $_.
It is occasionallly useful for a sub to be able to access its caller's $_ variable regardless of whether it was lexical or not. The "(_)" sub prototype is the official way to do so, however there are sometimes disadvantages to this; in particular it can only appear as the final required argument in a prototype, and there is no way of the sub differentiating between an explicitly passed argument and $_.
lexical::underscore allows you to access your caller's lexical $_ variable as easily as:
${lexical::underscore()}
Andere aan liblexical-underscore-perl gerelateerde pakketten
|
|
|
|
-
- dep: libpadwalker-perl
- module to inspect and manipulate lexical variables
-
- dep: perl
- Larry Wall's Practical Extraction and Report Language