08-22-2012
Everything in awk has the form condition{action}. If the condition evaluates to 1 then the action is performed. If the condition is omitted then the default condition is 1, so the action is always performed. If the action is omitted then the default action is performed, which is {print $0} . In this case the condition is "1" so that evaluates to 1 and the action is omitted, therefore {print $0} is performed, which is "print the entire record".
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column1
--------
33
44
55
66
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LEARN ABOUT DEBIAN
mojolicious::plugin::headercondition
Mojolicious::Plugin::HeaderCondition(3pm) User Contributed Perl Documentation Mojolicious::Plugin::HeaderCondition(3pm)
NAME
Mojolicious::Plugin::HeaderCondition - Header condition plugin
SYNOPSIS
# Mojolicious
$self->plugin('HeaderCondition');
$self->routes->get('/:controller/:action')
->over(headers => {Referer => qr/example.com/});
# Mojolicious::Lite
plugin 'HeaderCondition';
get '/' => (headers => {Referer => qr/example.com/}) => sub {...};
# All headers need to match
$self->routes->get('/:controller/:action')->over(headers => {
'X-Secret-Header' => 'Foo',
Referer => qr/example.com/
});
# The "agent" condition is a shortcut for the "User-Agent" header
get '/' => (agent => qr/Firefox/) => sub {...};
# The "host" condition is a shortcut for the detected host
get '/' => (host => qr/mojolicio.us/) => sub {...};
DESCRIPTION
Mojolicious::Plugin::HeaderCondition is a routes condition for header based routes.
This is a core plugin, that means it is always enabled and its code a good example for learning to build new plugins, you're welcome to
fork it.
METHODS
Mojolicious::Plugin::HeaderCondition inherits all methods from Mojolicious::Plugin and implements the following new ones.
"register"
$plugin->register($app);
Register condition in Mojolicious application.
SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>.
perl v5.14.2 2012-09-05 Mojolicious::Plugin::HeaderCondition(3pm)