/** * @param int $depth */ private function writeNode(NodeInterface $node, $depth = 0) { $comments = array(); $default = ''; $defaultArray = null; $children = null; $example = $node->getExample(); // defaults if ($node instanceof ArrayNode) { $children = $node->getChildren(); if ($node instanceof PrototypedArrayNode) { $prototype = $node->getPrototype(); if ($prototype instanceof ArrayNode) { $children = $prototype->getChildren(); } // check for attribute as key if ($key = $node->getKeyAttribute()) { $keyNode = new ArrayNode($key, $node); $keyNode->setInfo('Prototype'); // add children foreach ($children as $childNode) { $keyNode->addChild($childNode); } $children = array($key => $keyNode); } } if (!$children) { if ($node->hasDefaultValue() && count($defaultArray = $node->getDefaultValue())) { $default = ''; } elseif (!is_array($example)) { $default = '[]'; } } } else { $default = '~'; if ($node->hasDefaultValue()) { $default = $node->getDefaultValue(); if (true === $default) { $default = 'true'; } elseif (false === $default) { $default = 'false'; } elseif (null === $default) { $default = '~'; } } } // required? if ($node->isRequired()) { $comments[] = 'Required'; } // example if ($example && !is_array($example)) { $comments[] = 'Example: '.$example; } $default = (string) $default != '' ? ' '.$default : ''; $comments = count($comments) ? '# '.implode(', ', $comments) : ''; $text = sprintf('%-20s %s %s', $node->getName().':', $default, $comments); if ($info = $node->getInfo()) { $this->writeLine(''); $this->writeLine('# '.$info, $depth * 4); } $this->writeLine($text, $depth * 4); // output defaults if ($defaultArray) { $this->writeLine(''); $message = count($defaultArray) > 1 ? 'Defaults' : 'Default'; $this->writeLine('# '.$message.':', $depth * 4 + 4); $this->writeArray($defaultArray, $depth + 1); } if (is_array($example)) { $this->writeLine(''); $message = count($example) > 1 ? 'Examples' : 'Example'; $this->writeLine('# '.$message.':', $depth * 4 + 4); $this->writeArray($example, $depth + 1); } if ($children) { foreach ($children as $childNode) { $this->writeNode($childNode, $depth + 1); } } }
/** * Parses a template string into a template node tree, starting * at the specified offset. All created nodes are added to the * given sequence node. * * @param ArrayNode $node template node to build * @param string $string string to parse * @param int $pos offset in string * * @return int new offset in the string */ private static function parseTemplate(ArrayNode $node, $string, $pos) { $len = strlen($string); while ($pos < $len) { $next_pos = strpos($string, self::$tag_start, $pos); if ($next_pos === false) { $child = new TextNode(substr($string, $pos)); $node->addChild($child); break; } if ($next_pos > $pos) { $child = new TextNode(substr($string, $pos, $next_pos - $pos)); $node->addChild($child); } $pos = $next_pos + strlen(self::$tag_start); $next_pos = self::skipTokens($string, $pos); $scanner = new Scanner(substr($string, $pos, $next_pos - $pos)); $pos = $next_pos + strlen(self::$tag_end); switch ($scanner->nextToken()) { case T_FOREACH: $scanner->nextToken(); $child = new IteratorNode(self::parseExpr($scanner)); $pos = self::parseTemplate($child, $string, $pos); $node->addChild($child); break; case T_ENDFOREACH: return $pos; case T_IF: $scanner->nextToken(); $child = new ConditionNode(self::parseExpr($scanner)); $pos = self::parseTemplate($child, $string, $pos); $node->addChild($child); break; case T_ELSEIF: $scanner->nextToken(); $child = new ConditionNode(self::parseExpr($scanner)); $node->addElse(); $node->addChild($child); return self::parseTemplate($child, $string, $pos); case T_ELSE: $scanner->nextToken(); $node->addElse(); break; case T_ENDIF: return $pos; default: $child = new ExpressionNode(self::parseExpr($scanner)); $node->addChild($child); } if ($scanner->tokenType() !== false) { throw new TemplateParserException('syntax error', $scanner); } } return $pos; }
/** * Returns a string representation of this node. * * @param Context $context symbol table */ public function render($context) { if ($this->condition->value($context)) { return parent::render($context); } return $this->else_node ? $this->else_node->render($context) : ''; }