/**
* Attempt to parse link title (sans quotes)
*
* @param Cursor $cursor
*
* @return null|string The string, or null if no match
*/
public static function parseLinkTitle(Cursor $cursor)
{
if ($title = $cursor->match(RegexHelper::getInstance()->getLinkTitleRegex())) {
// Chop off quotes from title and unescape
return RegexHelper::unescape(substr($title, 1, strlen($title) - 2));
}
}
/**
* @param InlineParserContext $inlineContext
*
* @return bool
*/
public function parse(InlineParserContext $inlineContext)
{
$cursor = $inlineContext->getCursor();
if ($m = $cursor->match(RegexHelper::getInstance()->getHtmlTagRegex())) {
$inlineContext->getContainer()->appendChild(new HtmlInline($m));
return true;
}
return false;
}
/**
* @param ContextInterface $context
* @param InlineParserContext $inlineContext
*
* @return bool
*/
public function parse(ContextInterface $context, InlineParserContext $inlineContext)
{
$cursor = $inlineContext->getCursor();
if ($m = $cursor->match(RegexHelper::getInstance()->getHtmlTagRegex())) {
$inlineContext->getInlines()->add(new Html($m));
return true;
}
return false;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
$match = RegexHelper::matchAt(RegexHelper::getInstance()->getHtmlBlockOpenRegex(), $cursor->getLine(), $cursor->getFirstNonSpacePosition());
if ($match === null) {
return false;
}
$context->addBlock(new HtmlBlock());
$context->setBlocksParsed(true);
return true;
}
public static function parse(Cursor $cursor)
{
if (null === self::$regexp) {
$regex = RegexHelper::getInstance();
self::$regexp = sprintf('/^\\s*([.#][_a-z0-9-]+|%s%s)(?<!})\\s*/i', $regex->getPartialRegex(RegexHelper::ATTRIBUTENAME), $regex->getPartialRegex(RegexHelper::ATTRIBUTEVALUESPEC));
}
$state = $cursor->saveState();
$cursor->advanceToFirstNonSpace();
if ('{' !== $cursor->getCharacter()) {
$cursor->restoreState($state);
return [];
}
$cursor->advanceBy(1);
if (':' === $cursor->getCharacter()) {
$cursor->advanceBy(1);
}
$attributes = [];
while ($attribute = trim($cursor->match(self::$regexp))) {
if ('#' === $attribute[0]) {
$attributes['id'] = substr($attribute, 1);
continue;
}
if ('.' === $attribute[0]) {
$attributes['class'][] = substr($attribute, 1);
continue;
}
list($name, $value) = explode('=', $attribute, 2);
$first = $value[0];
$last = substr($value, -1);
if (('"' === $first && '"' === $last || "'" === $first && "'" === $last) && strlen($value) > 1) {
$value = substr($value, 1, -1);
}
if ('class' === strtolower(trim($name))) {
foreach (array_filter(explode(' ', trim($value))) as $class) {
$attributes['class'][] = $class;
}
} else {
$attributes[trim($name)] = trim($value);
}
}
if (0 === $cursor->advanceWhileMatches('}')) {
$cursor->restoreState($state);
return [];
}
if (isset($attributes['class'])) {
$attributes['class'] = implode(' ', $attributes['class']);
}
return $attributes;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
if ($cursor->isIndented()) {
return false;
}
$match = RegexHelper::matchAt(RegexHelper::getInstance()->getThematicBreakRegex(), $cursor->getLine(), $cursor->getFirstNonSpacePosition());
if ($match === null) {
return false;
}
// Advance to the end of the string, consuming the entire line (of the thematic break)
$cursor->advanceBy(mb_strlen($cursor->getRemainder()));
$context->addBlock(new ThematicBreak());
$context->setBlocksParsed(true);
return true;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
$tmpCursor = clone $cursor;
$indent = $tmpCursor->advanceWhileMatches(' ', 3);
$rest = $tmpCursor->getRemainder();
if (preg_match(RegexHelper::getInstance()->getHRuleRegex(), $rest)) {
return false;
}
$data = new ListData();
if ($matches = RegexHelper::matchAll('/^[*+-]( +|$)/', $rest)) {
$spacesAfterMarker = strlen($matches[1]);
$data->type = ListBlock::TYPE_UNORDERED;
$data->delimiter = null;
$data->bulletChar = $matches[0][0];
} elseif ($matches = RegexHelper::matchAll('/^(\\d+)([.)])( +|$)/', $rest)) {
$spacesAfterMarker = strlen($matches[3]);
$data->type = ListBlock::TYPE_ORDERED;
$data->start = intval($matches[1]);
$data->delimiter = $matches[2];
$data->bulletChar = null;
} else {
return false;
}
$data->padding = $this->calculateListMarkerPadding($matches[0], $spacesAfterMarker, $rest);
$cursor->advanceToFirstNonSpace();
$cursor->advanceBy($data->padding);
// list item
$data->markerOffset = $indent;
// add the list if needed
$container = $context->getContainer();
if (!$container || !$context->getContainer() instanceof ListBlock || !$data->equals($container->getListData())) {
$context->addBlock(new ListBlock($data));
}
// add the list item
$context->addBlock(new ListItem($data));
return true;
}
