Custom PointParser for Markdown implemented.
This commit is contained in:
Alexey Skobkin
parent
76fc484361
commit
42d504aba5
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@ -79,3 +79,7 @@ swiftmailer:
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username: "%mailer_user%"
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password: "%mailer_password%"
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spool: { type: memory }
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knp_markdown:
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parser:
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service: markdown.parser.point
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@ -51,3 +51,10 @@ services:
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- @skobkin__point_tools.service_factory.comment_factory
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- @skobkin__point_tools.service_factory.tag_factory
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markdown.parser.point:
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class: Skobkin\Bundle\PointToolsBundle\Service\Markdown\PointParser
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arguments:
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- []
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- @router
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tags:
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- { name: markdown.parser }
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@ -0,0 +1,206 @@
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<?php
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namespace Skobkin\Bundle\PointToolsBundle\Service\Markdown;
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use Knp\Bundle\MarkdownBundle\Parser\MarkdownParser;
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use Symfony\Component\Routing\RouterInterface;
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class PointParser extends MarkdownParser
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{
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/**
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* @var RouterInterface
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*/
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protected $router;
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/**
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* {@inheritdoc}
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*/
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protected $features = array(
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'header' => true,
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'list' => true,
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'horizontal_rule' => true,
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'table' => false,
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'foot_note' => true,
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'fenced_code_block' => true,
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'abbreviation' => true,
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'definition_list' => true,
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'inline_link' => true, // [link text](url "optional title")
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'reference_link' => true, // [link text] [id]
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'shortcut_link' => true, // [link text]
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'images' => true,
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'block_quote' => true,
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'code_block' => true,
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'html_block' => false,
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'auto_link' => true,
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'auto_mailto' => true,
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'entities' => true,
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'no_html' => true,
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'point_usernames' => true, // @user
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'point_posts' => true, // #post
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'point_tags' => false, // @todo implement
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'point_inline_images' => true, // https://i.skobk.in/i/facepalm.jpg
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);
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public function __construct(array $features, RouterInterface $router)
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{
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$this->router = $router;
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parent::__construct($features);
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}
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/**
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* Point.im breaks Markdown rule about quotation on next line
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*
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* @param $text
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*
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* @return mixed
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*/
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protected function doBlockQuotes($text) {
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$text = preg_replace_callback('/
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( # Wrap whole match in $1
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(?>
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^[ ]*>[ ]? # ">" at the start of a line
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.+\n # rest of the first line
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\n* # blanks
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)+
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)
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/xm',
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array($this, '_doBlockQuotes_callback'), $text
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);
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return $text;
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}
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/**
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* Point.im breaks Markdown double line wrap rule
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*
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* @param $text
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*
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* @return mixed
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*/
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protected function formParagraphs($text) {
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#
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# Params:
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# $text - string to process with html <p> tags
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#
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# Strip leading and trailing lines:
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$text = preg_replace('/\A\n+|\n+\z/', '', $text);
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$grafs = preg_split('/\n+/', $text, -1, PREG_SPLIT_NO_EMPTY);
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#
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# Wrap <p> tags and unhashify HTML blocks
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#
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foreach ($grafs as $key => $value) {
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if (!preg_match('/^B\x1A[0-9]+B$/', $value)) {
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# Is a paragraph.
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$value = $this->runSpanGamut($value);
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$value = preg_replace('/^([ ]*)/', "<p>", $value);
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$value .= "</p>";
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$grafs[$key] = $this->unhash($value);
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}
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else {
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# Is a block.
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# Modify elements of @grafs in-place...
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$graf = $value;
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$block = $this->html_hashes[$graf];
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$graf = $block;
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$grafs[$key] = $graf;
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}
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}
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return implode("\n\n", $grafs);
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}
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/**
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* @param string $text
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*
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* @return string
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*/
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public function doAutoLinks($text)
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{
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if ($this->features['point_inline_images']) {
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return preg_replace_callback('{((https?):\/\/[^\'">\s]+\.(jpg|jpeg|png|gif))}i', array(&$this, 'doAutoLinksInlineImageCallback'), $text);
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}
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return parent::doAutoLinks($text);
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}
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public function doAnchors($text)
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{
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$text = parent::doAnchors($text);
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#
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# Turn Markdown link shortcuts into XHTML <a> tags.
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#
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if ($this->in_anchor) {
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return $text;
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}
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$this->in_anchor = true;
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#
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# Handling username links: @some-point-username
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#
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if ($this->features['point_usernames']) {
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$text = preg_replace_callback('{
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( # wrap whole match in $1
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@
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(
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[a-zA-Z0-9\-]+? # username = $2
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)
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)
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([^a-zA-Z0-9\-]|$) # Tail of username
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}xs',
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array(&$this, 'doAnchorsPointUsernameCallback'), $text);
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}
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#
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# Handling post links: #somepost
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#
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if ($this->features['point_posts']) {
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$text = preg_replace_callback('{
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( # wrap whole match in $1
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\#
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(
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[a-zA-Z]+? # post id = $2
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)
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)
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([^a-zA-Z]|$) # Tail of post
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}xs',
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array(&$this, 'doAnchorsPointPostCallback'), $text);
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}
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$this->in_anchor = false;
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return $text;
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}
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protected function doAutoLinksInlineImageCallback($matches)
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{
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$url = trim($matches[1]);
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$ext = $matches[2];
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return $this->hashPart('<a href="'.$url.'" class="post-image '
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.('gif' === $ext ? ' img-gif':'').'"><img src="'.$url.'" class="img-thumbnail" alt="Inline image"></a>');
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}
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protected function doAnchorsPointUsernameCallback($matches)
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{
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//$wholeMatch = $matches[1];
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$username = $matches[2];
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$href = $this->router->generate('user_show', ['login' => $username]);
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$tail = htmlspecialchars($matches[3]);
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return $this->hashPart('<a href="'.$href.'" class="user">@'.$username.'</a>'.$tail);
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}
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protected function doAnchorsPointPostCallback($matches)
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{
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//$wholeMatch = $matches[1];
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$postId = $matches[2];
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$href = $this->router->generate('post_show', ['id' => $postId]);
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$tail = htmlspecialchars($matches[3]);
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return $this->hashPart('<a href="'.$href.'" class="post">#'.$postId.'</a>'.$tail);
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}
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}
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