124 lines
2.5 KiB
Perl
124 lines
2.5 KiB
Perl
#!/usr/bin/perl
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package IkiWiki::Plugin::postsparkline;
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use warnings;
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use strict;
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use IkiWiki;
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sub import { #{{{
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IkiWiki::loadplugin('sparkline');
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hook(type => "preprocess", id => "postsparkline", call => \&preprocess);
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} # }}}
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sub preprocess (@) { #{{{
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my %params=@_;
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if (! exists $params{max}) {
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$params{max}=100;
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}
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if (! exists $params{pages}) {
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return "";
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}
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if (! exists $params{formula}) {
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return "[[postsparkline ".gettext("missing formula")."]]";
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}
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my $formula=$params{formula};
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$formula=~s/[^a-zA-Z0-9]*//g;
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$formula=IkiWiki::possibly_foolish_untaint($formula);
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if (! length $formula ||
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! IkiWiki::Plugin::postsparkline::formula->can($formula)) {
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return "[[postsparkline ".gettext("unknown formula")."]]";
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}
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add_depends($params{page}, $params{pages});
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my @list;
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foreach my $page (keys %pagesources) {
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next if $page eq $params{page};
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if (pagespec_match($page, $params{pages}, $params{page})) {
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push @list, $page;
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}
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}
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@list = sort { $IkiWiki::pagectime{$b} <=> $IkiWiki::pagectime{$a} } @list;
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delete $params{pages};
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delete $params{formula};
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my @data=eval qq{IkiWiki::Plugin::postsparkline::formula::$formula(\\\%params, \@list)};
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if ($@) {
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return "[[postsparkline error $@]]";
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}
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return IkiWiki::Plugin::sparkline::preprocess(%params,
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map { $_ => "" } reverse @data);
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} # }}}
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sub perfoo ($@) {
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my $sub=shift;
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my $params=shift;
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my $max=$params->{max};
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my ($first, $prev, $cur);
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my $count=0;
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my @data;
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foreach (@_) {
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$cur=$sub->($IkiWiki::pagectime{$_});
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if (defined $prev) {
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if ($prev != $cur) {
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push @data, "$prev,$count";
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$count=0;
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last if --$max <= 0;
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for ($cur+1 .. $prev-1) {
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push @data, "$_,0";
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last if --$max == 0;
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}
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}
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}
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else {
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$first=$cur;
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}
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$count++;
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$prev=$cur;
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}
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return @data;
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}
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package IkiWiki::Plugin::postsparkline::formula;
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sub peryear (@) {
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return IkiWiki::Plugin::postsparkline::perfoo(sub {
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return (localtime $_[0])[5];
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}, @_);
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}
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sub permonth (@) {
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return IkiWiki::Plugin::postsparkline::perfoo(sub {
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my ($month, $year)=(localtime $_[0])[4,5];
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return $year*12+$month;
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}, @_);
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}
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sub perday (@) {
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return IkiWiki::Plugin::postsparkline::perfoo(sub {
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my ($year, $yday)=(localtime $_[0])[5,7];
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return $year*365+$yday;
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}, @_);
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}
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sub interval ($@) {
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my $params=shift;
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my $max=$params->{max};
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my @data;
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for (my $i=1; $i < @_; $i++) {
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push @data, $IkiWiki::pagectime{$_[$i-1]} - $IkiWiki::pagectime{$_[$i]};
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last if --$max <= 0;
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}
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return @data;
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}
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1
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