| Mason::Plugin::DollarDot(3pm) - phpMan
Mason::Plugin::DollarDot(3pm) User Contributed Perl Documentation Mason::Plugin::DollarDot(3pm)
NAME
Mason::Plugin::DollarDot - Allow $. as substitution for $self-> and in attribute names
SYNOPSIS
<%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 is
s/ \$\.([^\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
Mason
AUTHOR
Jonathan Swartz <swartz AT 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.
perl v5.18.2 2014-02-01 Mason::Plugin::DollarDot(3pm)
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