133 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			133 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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namespace dokuwiki\Extension;
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use Doku_Handler;
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use Doku_Renderer;
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/**
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 * Syntax Plugin Prototype
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 *
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 * All DokuWiki plugins to extend the parser/rendering mechanism
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 * need to inherit from this class
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 *
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 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
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 * @author     Andreas Gohr <andi@splitbrain.org>
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 */
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abstract class SyntaxPlugin extends \dokuwiki\Parsing\ParserMode\Plugin
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{
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    use PluginTrait;
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    protected $allowedModesSetup = false;
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    /**
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     * Syntax Type
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     *
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     * Needs to return one of the mode types defined in $PARSER_MODES in Parser.php
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     *
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     * @return string
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     */
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    abstract public function getType();
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    /**
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     * Allowed Mode Types
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     *
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     * Defines the mode types for other dokuwiki markup that maybe nested within the
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     * plugin's own markup. Needs to return an array of one or more of the mode types
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     * defined in $PARSER_MODES in Parser.php
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     *
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     * @return array
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     */
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    public function getAllowedTypes()
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    {
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        return array();
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    }
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    /**
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     * Paragraph Type
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     *
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     * Defines how this syntax is handled regarding paragraphs. This is important
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     * for correct XHTML nesting. Should return one of the following:
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     *
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     * 'normal' - The plugin can be used inside paragraphs
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     * 'block'  - Open paragraphs need to be closed before plugin output
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     * 'stack'  - Special case. Plugin wraps other paragraphs.
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     *
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     * @see Doku_Handler_Block
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     *
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     * @return string
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     */
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    public function getPType()
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    {
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        return 'normal';
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    }
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    /**
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     * Handler to prepare matched data for the rendering process
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     *
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     * This function can only pass data to render() via its return value - render()
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     * may be not be run during the object's current life.
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     *
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     * Usually you should only need the $match param.
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     *
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     * @param   string $match The text matched by the patterns
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     * @param   int $state The lexer state for the match
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     * @param   int $pos The character position of the matched text
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     * @param   Doku_Handler $handler The Doku_Handler object
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     * @return  bool|array Return an array with all data you want to use in render, false don't add an instruction
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     */
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    abstract public function handle($match, $state, $pos, Doku_Handler $handler);
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    /**
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     * Handles the actual output creation.
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     *
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     * The function must not assume any other of the classes methods have been run
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     * during the object's current life. The only reliable data it receives are its
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     * parameters.
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     *
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     * The function should always check for the given output format and return false
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     * when a format isn't supported.
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     *
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     * $renderer contains a reference to the renderer object which is
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     * currently handling the rendering. You need to use it for writing
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     * the output. How this is done depends on the renderer used (specified
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     * by $format
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     *
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     * The contents of the $data array depends on what the handler() function above
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     * created
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     *
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     * @param string $format output format being rendered
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     * @param Doku_Renderer $renderer the current renderer object
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     * @param array $data data created by handler()
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     * @return  boolean                 rendered correctly? (however, returned value is not used at the moment)
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     */
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    abstract public function render($format, Doku_Renderer $renderer, $data);
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    /**
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     *  There should be no need to override this function
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     *
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     * @param string $mode
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     * @return bool
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     */
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    public function accepts($mode)
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    {
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        if (!$this->allowedModesSetup) {
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            global $PARSER_MODES;
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            $allowedModeTypes = $this->getAllowedTypes();
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            foreach ($allowedModeTypes as $mt) {
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                $this->allowedModes = array_merge($this->allowedModes, $PARSER_MODES[$mt]);
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            }
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            $idx = array_search(substr(get_class($this), 7), (array)$this->allowedModes);
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            if ($idx !== false) {
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                unset($this->allowedModes[$idx]);
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            }
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            $this->allowedModesSetup = true;
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        }
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        return parent::accepts($mode);
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    }
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}
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