2 # Ikiwiki text colouring plugin
3 # Paweł‚ Tęcza <ptecza@net.icm.edu.pl>
4 package IkiWiki::Plugin::color;
11 hook(type => "preprocess", id => "color", call => \&preprocess);
12 hook(type => "format", id => "color", call => \&format);
13 hook(type => "getsetup", id => "color", call => \&getsetup);
25 sub preserve_style ($$$) {
26 my $foreground = shift;
27 my $background = shift;
30 $foreground = defined $foreground ? lc($foreground) : '';
31 $background = defined $background ? lc($background) : '';
32 $text = '' unless (defined $text);
34 # Validate colors. Only color name or color code are valid.
35 $foreground = '' unless ($foreground &&
36 ($foreground =~ /^[a-z]+$/ || $foreground =~ /^#[0-9a-f]{3,6}$/));
37 $background = '' unless ($background &&
38 ($background =~ /^[a-z]+$/ || $background =~ /^#[0-9a-f]{3,6}$/));
41 $preserved .= '<span class="color"><span value="';
42 $preserved .= 'color: '.$foreground if ($foreground);
43 $preserved .= '; ' if ($foreground && $background);
44 $preserved .= 'background-color: '.$background if ($background);
45 $preserved .= '"></span>'.$text.'</span>';
51 sub replace_preserved_style ($) {
54 $content =~ s!<span class="color">\s*<span value="((color: ([a-z]+|\#[0-9a-f]{3,6})?)?((; )?(background-color: ([a-z]+|\#[0-9a-f]{3,6})?)?)?)">\s*</span>!<span class="color" style="$1">!g;
62 return preserve_style($params{foreground}, $params{background},
63 # Preprocess the text to expand any preprocessor directives
65 IkiWiki::preprocess($params{page}, $params{destpage},
72 $params{content} = replace_preserved_style($params{content});
73 return $params{content};