/**
* Handle reference-style labeled images: ![alt text][id]
*
* @param Text $text
* @param array $options
*/
public function processReferencedImage(Text $text, array $options = array())
{
if (!$text->contains('![')) {
return;
}
/** @noinspection PhpUnusedParameterInspection */
$text->replace('{
#( # wrap whole match in $1
!\\[
(.*?) # alt text = $2
\\]
[ ]? # one optional space
(?:\\n[ ]*)? # one optional newline followed by spaces
\\[
(.*?) # id = $3
\\]
#)
}xs', function (Text $whole, Text $alt, Text $id = null) use($options) {
$result = null;
if ($id->lower() == '') {
$id->setString($alt);
}
$this->markdown->emit('escape.special_chars', [$alt->replace('/(?<!\\\\)_/', '\\\\_')]);
$attr = array('alt' => $alt->replace('/"/', '"'));
if ($this->markdown->getUrlRegistry()->exists($id)) {
$url = new Text($this->markdown->getUrlRegistry()->get($id));
$url->escapeHtml();
if ($this->markdown->getTitleRegistry()->exists($id)) {
$title = new Text($this->markdown->getTitleRegistry()->get($id));
$attr['title'] = $title->escapeHtml();
}
return $this->getRenderer()->renderImage($url, array('attr' => $attr));
} else {
if ($options['strict']) {
throw new SyntaxError(sprintf('Unable to find id "%s" in Reference-style image', $id), $this, $whole, $this->markdown);
}
return $whole;
}
});
}
/**
* Handle reference-style links: [link text] [id]
*
* @param Text $text
* @param array $options
*/
public function processReferencedLink(Text $text, array $options = array())
{
if (!$text->contains('[')) {
return;
}
/** @noinspection PhpUnusedParameterInspection */
$text->replace('{
#( # wrap whole match in $1
\\[
(' . $this->getNestedBrackets() . ') # link text = $2
\\]
[ ]? # one optional space
(?:\\n[ ]*)? # one optional newline followed by spaces
\\[
(.*?) # id = $3
\\]
#)
}xs', function (Text $whole, Text $linkText, Text $id = null) use($options) {
if (is_null($id) || (string) $id == '') {
$id = new Text($linkText);
}
$id->lower();
if ($this->markdown->getUrlRegistry()->exists($id)) {
$url = new Text($this->markdown->getUrlRegistry()->get($id));
$url->escapeHtml()->replace('/(?<!\\\\)_/', '\\\\_');
$this->markdown->emit('escape.special_chars', [$url]);
$linkOptions = ['href' => $url->getString()];
if ($this->markdown->getTitleRegistry()->exists($id)) {
$title = new Text($this->markdown->getTitleRegistry()->get($id));
$linkOptions['title'] = $title->escapeHtml()->getString();
}
return $this->getRenderer()->renderLink($linkText->getString(), $linkOptions);
} else {
if ($options['strict']) {
throw new SyntaxError(sprintf('Unable to find id "%s" in Reference-style link', $id), $this, $whole, $this->markdown);
}
return $whole;
}
});
}
