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<?php |
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declare(strict_types=1); |
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/** |
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* Highlighter |
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* |
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* Copyright (C) 2016, Some right reserved. |
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* |
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* @author Kacper "Kadet" Donat <[email protected]> |
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* |
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* Contact with author: |
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* Xmpp: [email protected] |
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* E-mail: [email protected] |
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* |
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* From Kadet with love. |
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*/ |
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namespace Kadet\Highlighter\Language; |
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use Kadet\Highlighter\KeyLighter; |
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use Kadet\Highlighter\Matcher\DelegateRegexMatcher; |
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use Kadet\Highlighter\Matcher\RegexMatcher; |
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use Kadet\Highlighter\Parser\Rule; |
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use Kadet\Highlighter\Parser\Token\LanguageToken; |
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use Kadet\Highlighter\Parser\Token\Token; |
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use Kadet\Highlighter\Parser\TokenFactoryInterface; |
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use Kadet\Highlighter\Parser\Validator\Validator; |
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class Markdown extends Html |
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{ |
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protected $_options = [ |
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'variables' => false, |
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]; |
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/** |
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* Tokenization rules setup |
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*/ |
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public function setupRules() |
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{ |
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parent::setupRules(); |
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$this->rules->validator = new Validator( |
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['!format.block.code', '!format.monospace', '!operator.escape', '!operator', '!tag'] |
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); |
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$this->rules->addMany([ |
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'format.header' => [ |
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new Rule(new RegexMatcher('/^\s{0,3}(#+.+?)\r?$/m')), |
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new Rule(new RegexMatcher('/^([^\r\n]+?)^(?:-+|=+)\R?$/m')) |
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], |
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'format.bold' => new Rule( |
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new RegexMatcher('/(?P<bold>(?P<b>\*\*|__)(?>[^*_\r\n]|(?:(?P<i>[*_]{2})(?>[^*_\r\n]|(?&bold))*?\g{i}))+\g{b})/', [ |
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'bold' => Token::NAME |
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]) |
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), |
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'format.italics' => new Rule( |
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new RegexMatcher('/(?:^|[^*_])(?P<italics>(?P<i>[*_])(?>[^*_\r\n]|(?:(?P<b>[*_]{2})(?>[^*_\r\n]|(?&italics))*?\g{b}))+\g{i})/', [ |
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'italics' => Token::NAME |
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]) |
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), |
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'format.strike' => new Rule(new RegexMatcher('/(~~.+?~~)/')), |
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'format.monospace' => [ |
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new Rule(new RegexMatcher('/(?:[^`]|^)(`.*?`)/')), |
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new Rule(new RegexMatcher('/(``.*?``)/')), |
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new Rule(new RegexMatcher('/^((?:(?: {4,}|\t).*?(?>\R|$)+?)+)/m')), |
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], |
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'operator.list.ordered' => new Rule(new RegexMatcher('/^\s*(\d+[.)])/m')), |
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'operator.list.unordered' => new Rule(new RegexMatcher('/^\s*([-+*])\s/m'), [ |
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'context' => ['none'], |
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'priority' => 2 |
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]), |
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'string.quote' => new Rule(new RegexMatcher('/((?:^>.*?\R)+)/m')), |
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'format.block.code' => [ |
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new Rule( |
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new DelegateRegexMatcher( |
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'/^```(.*?)\R(.*?)\R^```/ms', |
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function ($match, TokenFactoryInterface $factory) { |
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$lang = KeyLighter::get()->getLanguage($match[1][0]); |
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yield $factory->create(Token::NAME, ['pos' => $match[0][1], 'length' => strlen($match[0][0])]); |
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yield $factory->create( |
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"language.{$lang->getIdentifier()}", |
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[ |
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'pos' => $match[2][1], |
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'length' => strlen($match[2][0]), |
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'inject' => $lang, |
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'class' => LanguageToken::class, |
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] |
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); |
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2 |
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} |
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), |
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[ |
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'context' => Validator::everywhere(), |
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'postProcess' => true, |
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'priority' => 1000 |
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] |
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), |
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], |
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'operator.escape' => new Rule(new RegexMatcher('/(\\\.)/')), |
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'operator.horizontal' => new Rule(new RegexMatcher('/^\s{,3}(([-*_])( ?\2)+)\R/m'), [ |
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'priority' => 2 |
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]), |
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'symbol.link' => new Rule(new RegexMatcher('/[^!](\[(?:[^\[\]]|!\[.*?\]\(.*?\))*\])/i')), |
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'symbol.url' => new Rule(new RegexMatcher('#(<(https?://|[^/])[-A-Za-z0-9+&@\#/%?=~_|!:,.;]+[-A-Za-z0-9+&@\#/%=~_|]>|https?://[-A-Za-z0-9+&@\#/%?=~_|!:,.;]+[-A-Za-z0-9+&@\#/%=~_|])#i'), [ |
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'priority' => 0, |
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]), |
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'symbol.image' => new Rule(new RegexMatcher('/(!)(\[.*?\])\(.*?\)/i', [ |
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1 => 'operator.image', |
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2 => '$.title', |
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])), |
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]); |
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} |
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/** |
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* Unique language identifier, for example 'php' |
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* |
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* @return string |
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*/ |
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public function getIdentifier() |
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{ |
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return 'markdown'; |
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} |
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public static function getMetadata() |
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{ |
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return [ |
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'name' => ['markdown', 'md'], |
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'mime' => ['text/markdown'], |
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'extension' => ['*.markdown', '*.md'] |
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]; |
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} |
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} |
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kadet1090 /
KeyLighter
