/**
* iterate through the nodes and decide what we
* shall do with the current node
*
* @param void
* @return void
*/
protected function parse()
{
$this->output = '';
// drop tags
$this->parser->html = preg_replace('#<(' . implode('|', $this->drop) . ')[^>]*>.*</\\1>#sU', '', $this->parser->html);
while ($this->parser->nextNode()) {
switch ($this->parser->nodeType) {
case 'doctype':
break;
case 'pi':
case 'comment':
if ($this->keepHTML) {
$this->flushLinebreaks();
$this->out($this->parser->node);
$this->setLineBreaks(2);
}
// else drop
break;
case 'text':
$this->handleText();
break;
case 'tag':
if (in_array($this->parser->tagName, $this->ignore)) {
break;
}
// If the previous tag was not a block element, we simulate a paragraph tag
if ($this->parser->isBlockElement && $this->parser->isNextToInlineContext && !in_array($this->parent(), $this->allowMixedChildren)) {
$this->setLineBreaks(2);
}
if ($this->parser->isStartTag) {
$this->flushLinebreaks();
}
if ($this->skipConversion) {
$this->isMarkdownable();
// update notConverted
$this->handleTagToText();
continue;
}
if (!$this->parser->keepWhitespace && $this->parser->isBlockElement && $this->parser->isStartTag) {
$this->parser->html = ltrim($this->parser->html);
}
if ($this->isMarkdownable()) {
if ($this->parser->isBlockElement && $this->parser->isStartTag && !$this->lastWasBlockTag && !empty($this->output)) {
if (!empty($this->buffer)) {
$str =& $this->buffer[count($this->buffer) - 1];
} else {
$str =& $this->output;
}
if (substr($str, -strlen($this->indent) - 1) != "\n" . $this->indent) {
$str .= "\n" . $this->indent;
}
}
$func = 'handleTag_' . $this->parser->tagName;
$this->{$func}();
if ($this->linkPosition == self::LINK_AFTER_PARAGRAPH && $this->parser->isBlockElement && !$this->parser->isStartTag && empty($this->parser->openTags)) {
$this->flushFootnotes();
}
if (!$this->parser->isStartTag) {
$this->lastClosedTag = $this->parser->tagName;
}
} else {
$this->handleTagToText();
$this->lastClosedTag = '';
}
break;
default:
trigger_error('invalid node type', E_USER_ERROR);
break;
}
$this->lastWasBlockTag = $this->parser->nodeType == 'tag' && $this->parser->isStartTag && $this->parser->isBlockElement;
}
if (!empty($this->buffer)) {
// trigger_error('buffer was not flushed, this is a bug. please report!', E_USER_WARNING);
while (!empty($this->buffer)) {
$this->out($this->unbuffer());
}
}
// cleanup
$this->output = rtrim(str_replace('&', '&', str_replace('<', '<', str_replace('>', '>', $this->output))));
// end parsing, flush stacked tags
$this->flushFootnotes();
$this->stack = array();
}
/**
* iterate through the nodes and decide what we
* shall do with the current node
*
* @param void
* @return void
*/
function parse()
{
$this->output = '';
# drop tags
$this->parser->html = preg_replace('#<(' . implode('|', $this->drop) . ')[^>]*>.*</\\1>#sU', '', $this->parser->html);
while ($this->parser->nextNode()) {
switch ($this->parser->nodeType) {
case 'doctype':
break;
case 'pi':
case 'comment':
if ($this->keepHTML) {
$this->flushLinebreaks();
$this->out($this->parser->node);
$this->setLineBreaks(2);
}
# else drop
break;
case 'text':
$this->handleText();
break;
case 'tag':
if (in_array($this->parser->tagName, $this->ignore)) {
break;
}
if ($this->parser->isStartTag) {
$this->flushLinebreaks();
}
if ($this->skipConversion) {
$this->isMarkdownable();
# update notConverted
$this->handleTagToText();
continue;
}
if (!$this->parser->keepWhitespace && $this->parser->isBlockElement && $this->parser->isStartTag) {
$this->parser->html = ltrim($this->parser->html);
}
if ($this->isMarkdownable()) {
if ($this->parser->isBlockElement && $this->parser->isStartTag && !$this->lastWasBlockTag && !empty($this->output)) {
if (!empty($this->buffer)) {
$str =& $this->buffer[count($this->buffer) - 1];
} else {
$str =& $this->output;
}
if (substr($str, -strlen($this->indent) - 1) != "\n" . $this->indent) {
$str .= "\n" . $this->indent;
}
}
$func = 'handleTag_' . $this->parser->tagName;
$this->{$func}();
if ($this->linksAfterEachParagraph && $this->parser->isBlockElement && !$this->parser->isStartTag && empty($this->parser->openTags)) {
$this->flushStacked();
}
if (!$this->parser->isStartTag) {
$this->lastClosedTag = $this->parser->tagName;
}
} else {
$this->handleTagToText();
$this->lastClosedTag = '';
}
break;
default:
trigger_error('invalid node type', E_USER_ERROR);
break;
}
$this->lastWasBlockTag = $this->parser->nodeType == 'tag' && $this->parser->isStartTag && $this->parser->isBlockElement;
}
if (!empty($this->buffer)) {
trigger_error('buffer was not flushed, this is a bug. please report!', E_USER_WARNING);
while (!empty($this->buffer)) {
$this->out($this->unbuffer());
}
}
### cleanup
$this->output = rtrim(str_replace('&', '&', str_replace('<', '<', str_replace('>', '>', $this->output))));
# end parsing, flush stacked tags
$this->flushStacked();
$this->stack = array();
}
/**
* indent a HTML string properly
*
* @param string $html
* @param string $indent optional
* @return string
*/
function indentHTML($html, $indent = " ")
{
$parser = new parseHTML();
$parser->html = $html;
$html = '';
$last = true;
# last tag was block elem
$indent_a = array();
while ($parser->nextNode()) {
if ($parser->nodeType == 'tag') {
$parser->normalizeNode();
}
if ($parser->nodeType == 'tag' && $parser->isBlockElement) {
$isPreOrCode = in_array($parser->tagName, array('code', 'pre'));
if (!$parser->keepWhitespace && !$last && !$isPreOrCode) {
$html = rtrim($html) . "\n";
}
if ($parser->isStartTag) {
$html .= implode($indent_a);
if (!$parser->isEmptyTag) {
array_push($indent_a, $indent);
}
} else {
array_pop($indent_a);
if (!$isPreOrCode) {
$html .= implode($indent_a);
}
}
$html .= $parser->node;
if (!$parser->keepWhitespace && !($isPreOrCode && $parser->isStartTag)) {
$html .= "\n";
}
$last = true;
} else {
if ($parser->nodeType == 'tag' && $parser->tagName == 'br') {
$html .= $parser->node . "\n";
$last = true;
continue;
} elseif ($last && !$parser->keepWhitespace) {
$html .= implode($indent_a);
$parser->node = ltrim($parser->node);
}
$html .= $parser->node;
if (in_array($parser->nodeType, array('comment', 'pi', 'doctype'))) {
$html .= "\n";
} else {
$last = false;
}
}
}
return $html;
}
