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.\" ========================================================================
.\"
.IX Title "Mason::Plugin::Defer 3pm"
.TH Mason::Plugin::Defer 3pm "2014-02-01" "perl v5.18.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Mason::Plugin::Defer \- Defer computing parts of output until the end of the
request
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&    <head>
\&    <title><% $m\->defer(sub { $m\->page\->title }) %></title>
\&
\&    % $.Defer {{
\&    %   my $content = join(", ", @{ $m\->page\->meta_content });
\&    <meta name="description" content="<% $content %>">
\&    % }}
\&
\&    <body>
\&    ...
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fIdefer\fR feature allows sections of output to be deferred til the end of
the request. You can set up multiple deferred code blocks which will execute
and insert themselves into the output stream at request end.
.SH "REQUEST METHOD"
.IX Header "REQUEST METHOD"
.IP "defer (code)" 4
.IX Item "defer (code)"
Returns a marker string that is unique and will not appear in normal output. At
the end of the request, each marker string is replaced with the output of its
associated code. e.g.
.Sp
.Vb 1
\&    <title><% $m\->defer(sub { $m\->page\->title }) %></title>
.Ve
.SH "FILTER"
.IX Header "FILTER"
.IP "Defer" 4
.IX Item "Defer"
Applies \f(CW\*(C`$m\->defer\*(C'\fR to the content block. e.g.
.Sp
.Vb 4
\&    % $.Defer {{
\&    %   my $content = join(", ", @{ $m\->page\->meta_content });
\&    <meta name="description" content="<% $content %>">
\&    % }}
.Ve
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Mason
.SH "AUTHOR"
.IX Header "AUTHOR"
Jonathan Swartz <swartz@pobox.com>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2012 by Jonathan Swartz.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.