/**
* Parse the given content.
*
* Any newly created nodes should be pushed to the stack. Any remaining content should be passed to the next parser
* in the chain.
*
* @param Text $content
* @param Container $target
* @return void
*/
public function parseBlock(Text $content, Container $target)
{
$content->handle('/
(
(?: # We are either at the beginning of the match
^|\\n # or at a newline (for multi-line quotes)
)
(?:
[ ]{0,3}\\>[ ]* # either a blank line
|
[ ]{0,3}\\>[ ]?[`~]{3,}.* # or a code fence
|
[ ]{0,3}\\> # or non-blank lines...
[ ]*[^\\n\\ ][^\\n]*[ ]*
( # ...with lazy continuation
\\n
[ ]{0,3}
[^>\\-+*=\\ \\n][^\\n]*
)*
)
)+
$
/mx', function (Text $content) use($target) {
// Remove block quote marker plus surrounding whitespace on each line
$content->replace('/^[ ]{0,3}\\>[ ]?/m', '');
$blockquote = new Blockquote();
$target->addChild($blockquote);
$this->first->parseBlock($content, $blockquote);
}, function (Text $part) use($target) {
$this->next->parseBlock($part, $target);
});
}
/**
* Preprocess the text.
*
* This unifies line endings and replaces tabs by spaces.
*
* @param Text $text
* @return void
*/
protected function prepare(Text $text)
{
// Unify line endings
$text->replaceString("\r\n", "\n");
$text->replaceString("\r", "\n");
// Replace tabs by spaces
$text->replace('/(.*?)\\t/', function (Text $whole, Text $string) {
$tabWidth = 4;
return $string . str_repeat(' ', $tabWidth - $string->getLength() % $tabWidth);
});
}
