From 042a0577780ca1783ce8cb4d9a050fa115f6cd6b Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kodama.kitenet.net>
Date: Tue, 26 Aug 2008 13:22:34 -0400
Subject: color: New plugin from ptecza.

---
 IkiWiki/Plugin/color.pm    | 69 ++++++++++++++++++++++++++++++++++++++++++++++
 debian/changelog           |  1 +
 debian/copyright           |  4 +++
 doc/plugins/color.mdwn     | 23 ++++++++++++++++
 doc/style.css              |  4 +++
 doc/todo/color_plugin.mdwn |  2 ++
 6 files changed, 103 insertions(+)
 create mode 100644 IkiWiki/Plugin/color.pm
 create mode 100644 doc/plugins/color.mdwn

diff --git a/IkiWiki/Plugin/color.pm b/IkiWiki/Plugin/color.pm
new file mode 100644
index 000000000..ac702ff02
--- /dev/null
+++ b/IkiWiki/Plugin/color.pm
@@ -0,0 +1,69 @@
+#!/usr/bin/perl
+# Ikiwiki text colouring plugin
+# Paweł‚ Tęcza <ptecza@net.icm.edu.pl>
+package IkiWiki::Plugin::color;
+
+use warnings;
+use strict;
+use IkiWiki 2.00;
+
+sub import { #{{{
+	hook(type => "preprocess", id => "color", call => \&preprocess);
+	hook(type => "format",     id => "color", call => \&format);
+} #}}}
+
+sub preserve_style ($$$) { #{{{
+	my $foreground = shift;
+	my $background = shift;
+	my $text       = shift;
+
+	$foreground = defined $foreground ? lc($foreground) : '';
+	$background = defined $background ? lc($background) : '';
+	$text       = '' unless (defined $text);
+
+	# Validate colors. Only color name or color code are valid.
+	$foreground = '' unless ($foreground &&
+				($foreground =~ /^[a-z]+$/ || $foreground =~ /^#[0-9a-f]{3,6}$/));
+	$background = '' unless ($background &&
+				($background =~ /^[a-z]+$/ || $background =~ /^#[0-9a-f]{3,6}$/));
+
+	my $preserved = '';
+	$preserved .= '<span class="color">';
+	$preserved .= 'color: '.$foreground if ($foreground);
+	$preserved .= '; ' if ($foreground && $background);
+	$preserved .= 'background-color: '.$background if ($background);
+	$preserved .= '</span>';
+	$preserved .= '<span class="colorend">'.$text.'</span>';
+	
+	return $preserved;
+
+} #}}}
+
+sub replace_preserved_style ($) { #{{{
+	my $content = shift;
+
+	$content =~ s!<span class="color">((color: ([a-z]+|\#[0-9a-f]{3,6})?)?((; )?(background-color: ([a-z]+|\#[0-9a-f]{3,6})?)?)?)</span>!<span class="color" style="$1">!g;
+	$content =~ s!<span class="colorend">!!g;
+
+	return $content;
+} #}}}
+
+sub preprocess (@) { #{{{
+	my %params = @_;
+
+	# Preprocess the text to expand any preprocessor directives
+	# embedded inside it.
+	$params{text} = IkiWiki::preprocess($params{page}, $params{destpage},
+				IkiWiki::filter($params{page}, $params{destpage}, $params{text}));
+
+	return preserve_style($params{foreground}, $params{background}, $params{text});
+} #}}}
+
+sub format (@) { #{{{
+	my %params = @_;
+
+	$params{content} = replace_preserved_style($params{content});
+	return $params{content};	
+} #}}}
+
+1
diff --git a/debian/changelog b/debian/changelog
index 0730c1f3f..485a34ddf 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -17,6 +17,7 @@ ikiwiki (2.62) UNRELEASED; urgency=low
   * filecheck: New plugin factoring out the PageSpec additions that were
     originally part of the attachment plugin.
   * edittemplate: Don't wipe out edits on preview.
+  * color: New plugin from ptecza.
 
  -- Joey Hess <joeyh@debian.org>  Thu, 21 Aug 2008 16:20:58 -0400
 
diff --git a/debian/copyright b/debian/copyright
index b6c95ba99..a24970e29 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -100,6 +100,10 @@ Files: txt.pm
 Copyright: Copyright (C) 2008 Gabriel McManus <gmcmanus@gmail.com>
 License: GPL-2+
 
+Files: color.pm
+Copyright: Copyright (C) 2008 Paweł Tęcza <ptecza@net.icm.edu.pl>
+License: GPL-2+
+
 Files: doc/logo/*
 Copyright: © 2006 Recai Oktaş <roktas@debian.org>
 License: GPL-2+
diff --git a/doc/plugins/color.mdwn b/doc/plugins/color.mdwn
new file mode 100644
index 000000000..a5100d8de
--- /dev/null
+++ b/doc/plugins/color.mdwn
@@ -0,0 +1,23 @@
+\[[!template id=plugin name=color core=0 author="[[ptecza]]"]]
+
+This plugin can be used to color a piece of text on a page.
+It can be used to set the foreground and/or background color of the text.
+
+You can use a color name (e.g. `white`) or HTML code (e.g. `#ffffff`)
+to define colors. 
+
+## examples
+
+Here the foreground color is defined as a word, while the background color
+is defined as a HTML color code:
+
+	\[[!color foreground=white background=#ff0000 text="White text on red background"]]
+
+The background color is missing, so the text is displayed on default
+background:
+
+	\[[!color foreground=white text="White text on default color background"]]
+
+The foreground is missing, so the text has the default foreground color:
+
+	\[[!color background=#ff0000 text="Default color text on red background"]]
diff --git a/doc/style.css b/doc/style.css
index 781f2b389..2e6cdee07 100644
--- a/doc/style.css
+++ b/doc/style.css
@@ -348,3 +348,7 @@ legend {
 	background: #eee; 
 	color: black !important;
 }
+
+span.color {
+	padding: 2px;
+}
diff --git a/doc/todo/color_plugin.mdwn b/doc/todo/color_plugin.mdwn
index e1aa5daa2..69afe837d 100644
--- a/doc/todo/color_plugin.mdwn
+++ b/doc/todo/color_plugin.mdwn
@@ -227,3 +227,5 @@ Of course, I'm open for discussion or exchange of ideas :) --[[Paweł|ptecza]]
 	+span.color {
 	+	padding: 2px;
 	+}
+
+[[done]]
-- 
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