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<?php |
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namespace dokuwiki\Parsing; |
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use Doku_Handler; |
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use dokuwiki\Parsing\Lexer\Lexer; |
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use dokuwiki\Parsing\ParserMode\Base; |
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use dokuwiki\Parsing\ParserMode\ModeInterface; |
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/** |
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* Sets up the Lexer with modes and points it to the Handler |
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* For an intro to the Lexer see: wiki:parser |
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*/ |
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class Parser { |
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/** @var Doku_Handler */ |
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protected $handler; |
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/** @var Lexer $lexer */ |
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protected $lexer; |
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/** @var ModeInterface[] $modes */ |
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protected $modes = array(); |
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/** @var bool mode connections may only be set up once */ |
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protected $connected = false; |
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/** |
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* dokuwiki\Parsing\Doku_Parser constructor. |
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* |
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* @param Doku_Handler $handler |
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*/ |
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public function __construct(Doku_Handler $handler) { |
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$this->handler = $handler; |
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} |
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/** |
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* Adds the base mode and initialized the lexer |
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* |
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* @param Base $BaseMode |
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*/ |
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protected function addBaseMode($BaseMode) { |
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$this->modes['base'] = $BaseMode; |
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if(!$this->lexer) { |
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$this->lexer = new Lexer($this->handler, 'base', true); |
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} |
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$this->modes['base']->Lexer = $this->lexer; |
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} |
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/** |
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* Add a new syntax element (mode) to the parser |
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* |
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* PHP preserves order of associative elements |
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* Mode sequence is important |
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* |
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* @param string $name |
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* @param ModeInterface $Mode |
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*/ |
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public function addMode($name, ModeInterface $Mode) { |
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if(!isset($this->modes['base'])) { |
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$this->addBaseMode(new Base()); |
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} |
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$Mode->Lexer = $this->lexer; // FIXME should be done by setter |
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$this->modes[$name] = $Mode; |
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} |
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/** |
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* Connect all modes with each other |
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* |
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* This is the last step before actually parsing. |
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*/ |
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protected function connectModes() { |
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if($this->connected) { |
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return; |
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} |
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foreach(array_keys($this->modes) as $mode) { |
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// Base isn't connected to anything |
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if($mode == 'base') { |
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continue; |
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} |
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$this->modes[$mode]->preConnect(); |
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foreach(array_keys($this->modes) as $cm) { |
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if($this->modes[$cm]->accepts($mode)) { |
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$this->modes[$mode]->connectTo($cm); |
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} |
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} |
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$this->modes[$mode]->postConnect(); |
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} |
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$this->connected = true; |
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} |
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/** |
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* Parses wiki syntax to instructions |
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* |
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* @param string $doc the wiki syntax text |
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* @return array instructions |
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*/ |
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public function parse($doc) { |
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$this->connectModes(); |
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// Normalize CRs and pad doc |
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$doc = "\n" . str_replace("\r\n", "\n", $doc) . "\n"; |
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$this->lexer->parse($doc); |
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$this->handler->finalize(); |
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return $this->handler->calls; |
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} |
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} |
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splitbrain /
dokuwiki
If you access a property on an interface, you most likely code against a concrete implementation of the interface.
Available Fixes
Adding an additional type check:
Changing the type hint: