Parse zero or more space characters, including at most one newline
| public advanceToFirstNonSpace ( ) : integer | ||
| return | integer | Number of positions moved |
/**
* @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();
$data = new ListData();
if ($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;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*/
public function handleRemainingContents(ContextInterface $context, Cursor $cursor)
{
if ($cursor->isBlank()) {
return;
}
$context->addBlock(new Paragraph());
$cursor->advanceToFirstNonSpace();
$context->getTip()->addLine($cursor->getRemainder());
}
public function matchesNextLine(Cursor $cursor)
{
if (!$cursor->isIndented() && $cursor->getFirstNonSpaceCharacter() === '>') {
$cursor->advanceToFirstNonSpace();
$cursor->advance();
$cursor->advanceBySpaceOrTab();
return true;
}
return false;
}
public function matchesNextLine(Cursor $cursor)
{
if ($cursor->isBlank() && $this->firstChild !== null) {
$cursor->advanceToFirstNonSpace();
} elseif ($cursor->getIndent() >= $this->listData->markerOffset + $this->listData->padding) {
$cursor->advanceBy($this->listData->markerOffset + $this->listData->padding, true);
} else {
return false;
}
return true;
}
public function matchesNextLine(Cursor $cursor)
{
if ($cursor->getIndent() >= IndentedCodeParser::CODE_INDENT_LEVEL) {
$cursor->advanceBy(IndentedCodeParser::CODE_INDENT_LEVEL);
} elseif ($cursor->isBlank()) {
$cursor->advanceToFirstNonSpace();
} else {
return false;
}
return true;
}
public function matchesNextLine(Cursor $cursor)
{
if ($cursor->isIndented()) {
$cursor->advanceBy(Cursor::INDENT_LEVEL, true);
} elseif ($cursor->isBlank()) {
$cursor->advanceToFirstNonSpace();
} else {
return false;
}
return true;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
if ($cursor->getFirstNonSpaceCharacter() !== '>') {
return false;
}
$cursor->advanceToFirstNonSpace();
$cursor->advance();
if ($cursor->getCharacter() === ' ') {
$cursor->advance();
}
$context->addBlock(new BlockQuote());
return true;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
$previousState = $cursor->saveState();
$indent = $cursor->advanceToFirstNonSpace();
$fence = $cursor->match('/^`{3,}(?!.*`)|^~{3,}(?!.*~)/');
if (!$fence) {
$cursor->restoreState($previousState);
return false;
}
// fenced code block
$fenceLength = strlen($fence);
$context->addBlock(new FencedCode($fenceLength, $fence[0], $indent));
return true;
}
public function matchesNextLine(Cursor $cursor)
{
if ($cursor->getIndent() <= 3 && in_array($cursor->getFirstNonSpaceCharacter(), static::getIconBlockTypes())) {
$cursor->advanceToFirstNonSpace();
if ($cursor->peek() === '>') {
$cursor->advanceBy(2);
if ($cursor->getCharacter() === ' ') {
$cursor->advance();
}
return true;
}
}
return false;
}
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->getFirstNonSpaceCharacter() !== 'A' || $cursor->getCharacter($cursor->getFirstNonSpacePosition() + 1) !== '>') {
return false;
}
$cursor->advanceToFirstNonSpace();
if ($cursor->peek() === '>') {
$cursor->advanceBy(2);
if ($cursor->getCharacter() === ' ') {
$cursor->advance();
}
}
$context->addBlock(new Aside());
return true;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
if ($cursor->isIndented()) {
return false;
}
$previousState = $cursor->saveState();
$cursor->advanceToFirstNonSpace();
$fence = $cursor->match('/^\\[TOC\\]/');
if (is_null($fence)) {
$cursor->restoreState($previousState);
return false;
}
$context->addBlock(new TableOfContents());
return true;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
if (!in_array($cursor->getFirstNonSpaceCharacter(), IconBlock::getIconBlockTypes()) || $cursor->getCharacter($cursor->getFirstNonSpacePosition() + 1) !== '>') {
return false;
}
$type = $cursor->getFirstNonSpaceCharacter();
$cursor->advanceToFirstNonSpace();
if ($cursor->peek() === '>') {
$cursor->advanceBy(2);
if ($cursor->getCharacter() === ' ') {
$cursor->advance();
}
}
$context->addBlock(new IconBlock($type));
return true;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
$match = RegexHelper::matchAll('/^#{1,6}(?: +|$)/', $cursor->getLine(), $cursor->getFirstNonSpacePosition());
if (!$match) {
return false;
}
$cursor->advanceToFirstNonSpace();
$cursor->advanceBy(strlen($match[0]));
$level = strlen(trim($match[0]));
$str = $cursor->getRemainder();
$str = preg_replace('/^ *#+ *$/', '', $str);
$str = preg_replace('/ +#+ *$/', '', $str);
$context->addBlock(new Header($level, $str));
$context->setBlocksParsed(true);
return true;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
if ($cursor->isIndented() && !$context->getContainer() instanceof ListBlock) {
return false;
}
$tmpCursor = clone $cursor;
$tmpCursor->advanceToFirstNonSpace();
$rest = $tmpCursor->getRemainder();
$data = new ListData();
$data->markerOffset = $cursor->getIndent();
if ($matches = RegexHelper::matchAll('/^[*+-]/', $rest)) {
$data->type = ListBlock::TYPE_UNORDERED;
$data->delimiter = null;
$data->bulletChar = $matches[0][0];
} elseif (($matches = RegexHelper::matchAll('/^(\\d{1,9})([.)])/', $rest)) && (!$context->getContainer() instanceof Paragraph || $matches[1] === '1')) {
$data->type = ListBlock::TYPE_ORDERED;
$data->start = intval($matches[1]);
$data->delimiter = $matches[2];
$data->bulletChar = null;
} else {
return false;
}
$markerLength = strlen($matches[0]);
// Make sure we have spaces after
$nextChar = $tmpCursor->peek($markerLength);
if (!($nextChar === null || $nextChar === "\t" || $nextChar === ' ')) {
return false;
}
// If it interrupts paragraph, make sure first line isn't blank
if ($context->getContainer() instanceof Paragraph && !RegexHelper::matchAt(RegexHelper::REGEX_NON_SPACE, $rest, $markerLength)) {
return false;
}
// We've got a match! Advance offset and calculate padding
$cursor->advanceToFirstNonSpace();
// to start of marker
$cursor->advanceBy($markerLength, true);
// to end of marker
$data->padding = $this->calculateListMarkerPadding($cursor, $markerLength);
// 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;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*
* @return bool
*/
public function parse(ContextInterface $context, Cursor $cursor)
{
if ($cursor->isIndented()) {
return false;
}
if ($cursor->getFirstNonSpaceCharacter() !== '<') {
return false;
}
$savedState = $cursor->saveState();
$cursor->advanceToFirstNonSpace();
$line = $cursor->getRemainder();
for ($blockType = 1; $blockType <= 7; $blockType++) {
$match = RegexHelper::matchAt(RegexHelper::getHtmlBlockOpenRegex($blockType), $line);
if ($match !== null && ($blockType < 7 || !$context->getContainer() instanceof Paragraph)) {
$cursor->restoreState($savedState);
$context->addBlock(new HtmlBlock($blockType));
$context->setBlocksParsed(true);
return true;
}
}
$cursor->restoreState($savedState);
return false;
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*/
public function handleRemainingContents(ContextInterface $context, Cursor $cursor)
{
// create paragraph container for line
$context->addBlock(new Paragraph());
$cursor->advanceToFirstNonSpace();
$context->getTip()->addLine($cursor->getRemainder());
}
/**
* @param ContextInterface $context
* @param Cursor $cursor
*/
public function handleRemainingContents(ContextInterface $context, Cursor $cursor)
{
$cursor->advanceToFirstNonSpace();
$context->getTip()->addLine($cursor->getRemainder());
}
/**
* @param Cursor $cursor
*
* @return array|bool
*/
protected function tryParseInlineLinkAndTitle(Cursor $cursor)
{
$cursor->advance();
$cursor->advanceToFirstNonSpace();
if (($dest = LinkParserHelper::parseLinkDestination($cursor)) === null) {
return false;
}
$cursor->advanceToFirstNonSpace();
$title = null;
// make sure there's a space before the title:
if (preg_match('/^\\s/', $cursor->peek(-1))) {
$title = LinkParserHelper::parseLinkTitle($cursor) ?: '';
}
$cursor->advanceToFirstNonSpace();
if ($cursor->match('/^\\)/') === null) {
return false;
}
return ['url' => $dest, 'title' => $title];
}
/**
* @param Cursor $cursor
* @param ReferenceMap $referenceMap
* @param Delimiter $opener
* @param int $startPos
*
* @return Reference|null
*/
protected function tryParseReference(Cursor $cursor, ReferenceMap $referenceMap, Delimiter $opener, $startPos)
{
$savePos = $cursor->saveState();
$cursor->advanceToFirstNonSpace();
$beforeLabel = $cursor->getPosition();
$n = LinkParserHelper::parseLinkLabel($cursor);
if ($n === 0 || $n === 2) {
// Empty or missing second label
$reflabel = mb_substr($cursor->getLine(), $opener->getIndex(), $startPos - $opener->getIndex(), 'utf-8');
} else {
$reflabel = mb_substr($cursor->getLine(), $beforeLabel + 1, $n - 2, 'utf-8');
}
if ($n === 0) {
// If shortcut reference link, rewind before spaces we skipped
$cursor->restoreState($savePos);
}
return $referenceMap->getReference($reflabel);
}
/**
* @param Cursor $cursor
*
* @return array|bool
*/
protected function tryParseInlineLinkAndTitle(Cursor $cursor)
{
if ($cursor->getCharacter() !== '(') {
return false;
}
$previousState = $cursor->saveState();
$cursor->advance();
$cursor->advanceToFirstNonSpace();
if (($dest = LinkParserHelper::parseLinkDestination($cursor)) === null) {
$cursor->restoreState($previousState);
return false;
}
$cursor->advanceToFirstNonSpace();
$title = null;
// make sure there's a space before the title:
if (preg_match(RegexHelper::REGEX_WHITESPACE_CHAR, $cursor->peek(-1))) {
$title = LinkParserHelper::parseLinkTitle($cursor) ?: '';
}
$cursor->advanceToFirstNonSpace();
if ($cursor->match('/^\\)/') === null) {
$cursor->restoreState($previousState);
return false;
}
return ['url' => $dest, 'title' => $title];
}
