+global\ElggAutoP::addParagraphs()

Complexity

Conditions	32
Paths	10384

Size

Total Lines	129
Code Lines	76

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
	protected function addParagraphs(DOMElement $el) {
		// no need to call recursively, just queue up
		$elsToProcess = array($el);
		$inlinesToProcess = array();
		while ($el = array_shift($elsToProcess)) {
			// if true, we can alter all child nodes, if not, we'll just call
			// addParagraphs on each element in the descendInto list
			$alterInline = in_array($el->nodeName, $this->_alterList);

			// inside affected elements, we want to trim leading whitespace from
			// the first text node
			$ltrimFirstTextNode = true;

			// should we open a new AUTOP element to move inline elements into?
			$openP = true;
			$autop = null;

			// after BR, ignore a newline
			$isFollowingBr = false;

			$node = $el->firstChild;
			while (null !== $node) {
				if ($alterInline) {
					if ($openP) {
						$openP = false;
						// create a P to move inline content into (this may be removed later)
						$autop = $el->insertBefore($this->_doc->createElement('autop'), $node);
					}
				}

				$isElement = ($node->nodeType === XML_ELEMENT_NODE);
				if ($isElement) {
					$isBlock = in_array($node->nodeName, $this->_blocks);
					if (!$isBlock) {
						// if we start with an inline element we don't need to do this
						$ltrimFirstTextNode = false;
					}
				} else {
					$isBlock = false;
				}

				if ($alterInline) {
					$isText = ($node->nodeType === XML_TEXT_NODE);
					$isLastInline = (! $node->nextSibling
							|| ($node->nextSibling->nodeType === XML_ELEMENT_NODE
								&& in_array($node->nextSibling->nodeName, $this->_blocks)));
					if ($isElement) {
						$isFollowingBr = ($node->nodeName === 'br');
					}

					if ($isText) {
						$nodeText = $node->nodeValue;

						if ($ltrimFirstTextNode) {
							// we're at the beginning of a sequence of text/inline elements
							$nodeText = ltrim($nodeText);
							$ltrimFirstTextNode = false;
						}
						if ($isFollowingBr && preg_match('@^[ \\t]*\\n[ \\t]*@', $nodeText, $m)) {
							// if a user ends a line with <br>, don't add a second BR
							$nodeText = substr($nodeText, strlen($m[0]));
						}
						if ($isLastInline) {
							// we're at the end of a sequence of text/inline elements
							$nodeText = rtrim($nodeText);
						}
						$nodeText = str_replace("\n", $this->_unique . 'NL', $nodeText);
						$tmpNode = $node;
						$node = $node->nextSibling; // move loop to next node

						// alter node in place, then move into AUTOP
						$tmpNode->nodeValue = $nodeText;
						$autop->appendChild($tmpNode);

						continue;
					}
				}
				if ($isBlock || ! $node->nextSibling) {
					if ($isBlock) {
						if (in_array($node->nodeName, $this->_descendList)) {
							$elsToProcess[] = $node;
							//$this->addParagraphs($node);
						}
					}
					$openP = true;
					$ltrimFirstTextNode = true;
				}
				if ($alterInline) {
					if (! $isBlock) {
						$tmpNode = $node;
						if ($isElement && false !== strpos($tmpNode->textContent, "\n")) {
							$inlinesToProcess[] = $tmpNode;
						}
						$node = $node->nextSibling;
						$autop->appendChild($tmpNode);
						continue;
					}
				}

				$node = $node->nextSibling;
			}
		}

		// handle inline nodes
		// no need to recurse, just queue up
		while ($el = array_shift($inlinesToProcess)) {
			$ignoreLeadingNewline = false;
			foreach ($el->childNodes as $node) {
				if ($node->nodeType === XML_ELEMENT_NODE) {
					if ($node->nodeValue === 'BR') {
						$ignoreLeadingNewline = true;
					} else {
						$ignoreLeadingNewline = false;
						if (false !== strpos($node->textContent, "\n")) {
							$inlinesToProcess[] = $node;
						}
					}
					continue;
				} elseif ($node->nodeType === XML_TEXT_NODE) {
					$text = $node->nodeValue;
					if ($text[0] === "\n" && $ignoreLeadingNewline) {
						$text = substr($text, 1);
						$ignoreLeadingNewline = false;
					}
					$node->nodeValue = str_replace("\n", $this->_unique . 'BR', $text);
				}
			}
		}
	}
}