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<?php
/**
* Plugin Color: Sets new colors for text and background.
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Christopher Smith <chris@jalakai.co.uk>
*/
// must be run within DokuWiki
if(!defined('DOKU_INC')) die();
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'syntax.php');
/**
* All DokuWiki plugins to extend the parser/rendering mechanism
* need to inherit from this class
*/
class syntax_plugin_color extends DokuWiki_Syntax_Plugin {
function getType(){ return 'formatting'; }
function getAllowedTypes() { return array('formatting', 'substition', 'disabled'); }
function getSort(){ return 158; }
function connectTo($mode) { $this->Lexer->addEntryPattern('<color.*?>(?=.*?</color>)',$mode,'plugin_color'); }
function postConnect() { $this->Lexer->addExitPattern('</color>','plugin_color'); }
/**
* Handle the match
*/
function handle($match, $state, $pos, &$handler){
switch ($state) {
case DOKU_LEXER_ENTER :
list($color, $background) = preg_split("/\//u", substr($match, 6, -1), 2);
if ($color = $this->_isValid($color)) $color = "color:$color;";
if ($background = $this->_isValid($background)) $background = "background-color:$background;";
return array($state, array($color, $background));
case DOKU_LEXER_UNMATCHED : return array($state, $match);
case DOKU_LEXER_EXIT : return array($state, '');
}
return array();
}
/**
* Create output
*/
function render($mode, &$renderer, $data) {
if($mode == 'xhtml'){
list($state, $match) = $data;
switch ($state) {
case DOKU_LEXER_ENTER :
list($color, $background) = $match;
$renderer->doc .= "<span style='$color $background'>";
break;
case DOKU_LEXER_UNMATCHED : $renderer->doc .= $renderer->_xmlEntities($match); break;
case DOKU_LEXER_EXIT : $renderer->doc .= "</span>"; break;
}
return true;
}
return false;
}
// validate color value $c
// this is cut price validation - only to ensure the basic format is correct and there is nothing harmful
// three basic formats "colorname", "#fff[fff]", "rgb(255[%],255[%],255[%])"
function _isValid($c) {
$c = trim($c);
$pattern = "/^\s*(
([a-zA-Z]+)| #colorname - not verified
(\#([0-9a-fA-F]{3}|[0-9a-fA-F]{6}))| #colorvalue
(rgb\(([0-9]{1,3}%?,){2}[0-9]{1,3}%?\)) #rgb triplet
)\s*$/x";
if (preg_match($pattern, $c)) return trim($c);
return "";
}
}
?>