/**
* @param Text $text
*
* @return array
*/
protected function parseAttributes(Text $text)
{
$patterns = ['id' => '/^#([a-zA-Z0-9_-]+)/', 'class' => '/^\\.([a-zA-Z0-9_-]+)/', 'attr' => '/^\\[([^\\]]+)\\]/', 'ident' => '/^(.)/'];
$tokens = ['id' => [], 'class' => [], 'attr' => [], 'ident' => []];
while (!$text->isEmpty()) {
foreach ($patterns as $name => $pattern) {
if ($text->match($pattern, $matches)) {
$tokens[$name][] = $matches[1];
$text->setString(substr($text->getString(), strlen($matches[0])));
break;
}
}
}
$attributes = array();
if (count($tokens['id'])) {
$attributes['id'] = array_pop($tokens['id']);
}
if (count($tokens['class'])) {
$attributes['class'] = implode(' ', $tokens['class']);
}
if (count($tokens['attr'])) {
foreach ($tokens['attr'] as $raw) {
$items = explode(' ', $raw);
foreach ($items as $item) {
if (strpos($item, '=') !== false) {
list($key, $value) = explode('=', $item);
$attributes[$key] = trim($value, '"');
} else {
$attributes[$item] = $item;
}
}
}
}
return $attributes;
}
/**
* @param Text $text
*/
public function buildParagraph(Text $text)
{
$parts = $text->replace('/\\A\\n+/', '')->replace('/\\n+\\z/', '')->split('/\\n{2,}/', PREG_SPLIT_NO_EMPTY);
$parts->apply(function (Text $part) {
if (!$this->markdown->getHashRegistry()->exists($part)) {
$this->markdown->emit('inline', array($part));
$part->replace('/^([ \\t]*)/', '');
$part->setString($this->getRenderer()->renderParagraph((string) $part));
}
return $part;
});
$parts->apply(function (Text $part) {
if ($this->markdown->getHashRegistry()->exists($part)) {
$part->setString(trim($this->markdown->getHashRegistry()->get($part)));
}
return $part;
});
$text->setString($parts->join("\n\n"));
}
