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Mason::Plugin::DollarDot(3pm) | User Contributed Perl Documentation | Mason::Plugin::DollarDot(3pm) |
NAME¶
Mason::Plugin::DollarDot - Allow $. as substitution for $self-> and in attribute namesSYNOPSIS¶
<%class> has 'name'; has 'date'; </%class> <%method greet> Hello, <% $.name %>. Today is <% $.date %>. </%method> ... % $.greet(); <%init> # Set the date $.date(scalar(localtime)); # or, if combined with LvalueAttributes $.date = scalar(localtime); </%init>
DESCRIPTION¶
This plugin substitutes "$.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 iss/ \$\.([^\W\d]\w*) / \$self->$1 /gx;
RATIONALE¶
In Mason 2, components have to write "$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.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).
BUGS¶
Will not interpolate as expected inside double quotes:"My name is $.name" # nope
instead you have to do
"My name is " . $.name
SEE ALSO¶
MasonAUTHOR¶
Jonathan Swartz <swartz@pobox.com>COPYRIGHT AND LICENSE¶
This software is copyright (c) 2012 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.
2015-05-16 | perl v5.20.2 |