/**
* Handles HAML multiline syntax
*
* Any line terminated by ` |` is concatenated with the following lines
* also terminated by ` |`. Empty or whitespace-only lines are ignored. The
* current line is replaced by the resulting line in $buf.
*
* @param Buffer $buf
*/
public function handleMultiline($buf)
{
$line = $buf->getLine();
if (!$this->isMultiline($line)) {
return;
}
$line = substr(rtrim($line), 0, -1);
while ($next = $buf->peekLine()) {
if (trim($next) == '') {
$buf->nextLine();
continue;
}
if (!$this->isMultiline($next)) {
break;
}
$line .= substr(trim($next), 0, -1);
$buf->nextLine();
}
$buf->replaceLine($line);
}
protected function parseFilter(Buffer $buf)
{
if (!$buf->match('/:(.*)/A', $match)) {
return null;
}
$node = new Filter($match['pos'][0], $match[1]);
while (null !== ($next = $buf->peekLine())) {
$indent = '';
if ('' !== trim($next)) {
$indent = $this->indent->getString(1, $next);
if ('' === $indent) {
break;
}
if (strpos($next, $indent) !== 0) {
break;
}
}
$buf->nextLine();
$buf->eatChars(strlen($indent));
$str = $this->parseInterpolatedString($buf, false);
$node->addChild(new Statement($str->getPosition(), $str));
}
return $node;
}
