Mason::Plugin::DollarDot - Allow $. as substitution for $self-> and in attribute names
<%args> $.name </%args> <%shared> $.date </%shared> <%method greet> Hello, <% $.name %>. Today is <% $.date %>. </%method> ... % $.greet(); <%init> # Set the date $.date(scalar(localtime)); # or, if combined with LvalueAttributes $.date = scalar(localtime); </%init>
This plugin substitutes $.identifier for $self->identifier in all Perl code inside components, so that $. can be used when referring to attributes and calling methods. The actual regex is
$.identifier
$self->identifier
$.
s/ \$\.([^\W\d]\w*) / \$self->$1 /gx;
It also allows attributes in <%args> and <%shared> sections to be harmlessly prefixed with $.. The prefix is ignored; this is an optional mnemonic to make the attribute's declaration match its use.
<%args>
<%shared>
In Mason 2, components have to write $self-> a lot to refer to attributes that were simple scalars in Mason 1. This eases the transition pain. $. was chosen because of its similar use in Perl 6.
$self->
This plugin falls under the heading of gratuitous source filtering, which the author generally agrees is Evil. That said, this is a very limited filter, and seems unlikely to break any legitimate Perl syntax other than use of the $. special variable (input line number).
Mason
Jonathan Swartz <swartz@pobox.com>
This software is copyright (c) 2011 by Jonathan Swartz.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
To install Mason, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Mason
CPAN shell
perl -MCPAN -e shell install Mason
For more information on module installation, please visit the detailed CPAN module installation guide.