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#!/usr/bin/perl
package IkiWiki::Plugin::conditional;
use warnings;
use strict;
use IkiWiki 3.00;
use UNIVERSAL;
sub import {
hook(type => "getsetup", id => "conditional", call => \&getsetup);
hook(type => "preprocess", id => "if", call => \&preprocess_if);
}
sub getsetup {
return
plugin => {
safe => 1,
rebuild => undef,
section => "widget",
},
}
sub preprocess_if (@) {
my %params=@_;
foreach my $param (qw{test then}) {
if (! exists $params{$param}) {
error sprintf(gettext('%s parameter is required'), $param);
}
}
my $result=0;
if ((exists $params{all} && ! IkiWiki::yesno($params{all})) ||
# An optimisation to avoid needless looping over every page
# for simple uses of some of the tests.
$params{test} =~ /^([\s\!()]*((enabled|sourcepage|destpage|included)\([^)]*\)|(and|or))[\s\!()]*)+$/) {
add_depends($params{page}, "($params{test}) and $params{page}");
$result=pagespec_match($params{page}, $params{test},
location => $params{page},
sourcepage => $params{page},
destpage => $params{destpage});
}
else {
$result=pagespec_match_list($params{page}, $params{test},
# stop after first match
num => 1,
sourcepage => $params{page},
destpage => $params{destpage},
);
}
my $ret;
if ($result) {
$ret=$params{then};
}
elsif (exists $params{else}) {
$ret=$params{else};
}
else {
$ret="";
}
return IkiWiki::preprocess($params{page}, $params{destpage}, $ret);
}
package IkiWiki::PageSpec;
sub match_enabled ($$;@) {
shift;
my $plugin=shift;
# test if the plugin is enabled
if (UNIVERSAL::can("IkiWiki::Plugin::".$plugin, "import")) {
return IkiWiki::SuccessReason->new("$plugin is enabled");
}
else {
return IkiWiki::FailReason->new("$plugin is not enabled");
}
}
sub match_sourcepage ($$;@) {
shift;
my $glob=shift;
my %params=@_;
$glob=derel($glob, $params{location});
return IkiWiki::FailReason->new("cannot match sourcepage") unless exists $params{sourcepage};
if (match_glob($params{sourcepage}, $glob, @_)) {
return IkiWiki::SuccessReason->new("sourcepage matches $glob");
}
else {
return IkiWiki::FailReason->new("sourcepage does not match $glob");
}
}
sub match_destpage ($$;@) {
shift;
my $glob=shift;
my %params=@_;
$glob=derel($glob, $params{location});
return IkiWiki::FailReason->new("cannot match destpage") unless exists $params{destpage};
if (match_glob($params{destpage}, $glob, @_)) {
return IkiWiki::SuccessReason->new("destpage matches $glob");
}
else {
return IkiWiki::FailReason->new("destpage does not match $glob");
}
}
sub match_included ($$;@) {
shift;
shift;
my %params=@_;
return IkiWiki::FailReason->new("cannot match included") unless exists $params{sourcepage} && exists $params{destpage};
if ($params{sourcepage} ne $params{destpage}) {
return IkiWiki::SuccessReason->new("page $params{sourcepage} is included");
}
else {
return IkiWiki::FailReason->new("page $params{sourcepage} is not included");
}
}
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