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Implement underline

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This commit is contained in:
Dennis Eichhorn 2018-05-09 20:43:03 +02:00
parent bb30edde28
commit aef7699ba2
1 changed files with 14 additions and 2 deletions
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16
Utils/Parser/Markdown/Markdown.php
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@ -85,9 +85,19 @@ class Markdown
*/
protected static $strongRegex = [
'*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s',
];
/**
* Regex for underline.
*
* @var string[]
* @since 1.0.0
*/
protected static $underlineRegex = [
'_' => '/^__((?:\\\\_|[^_]|_[^_]*_)+?)__(?!_)/us',
];
/**
* Regex for em.
*
@ -108,7 +118,7 @@ class Markdown
protected static $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*(?:\s*=\s*(?:[^"\'=<>`\s]+|"[^"]*"|\'[^\']*\'))?';
/**
* Regex for strong.
* Void elements.
*
* @var string[]
* @since 1.0.0
@ -1062,8 +1072,10 @@ class Markdown
$marker = $excerpt['text'][0];
if ($excerpt['text'][1] === $marker && preg_match(self::$strongRegex[$marker], $excerpt['text'], $matches)) {
if ($excerpt['text'][1] === $marker && isset(self::$strongRegex[$marker]) && preg_match(self::$strongRegex[$marker], $excerpt['text'], $matches)) {
$emphasis = 'strong';
} elseif ($excerpt['text'][1] === $marker && isset(self::$underlineRegex[$marker]) && preg_match(self::$underlineRegex[$marker], $excerpt['text'], $matches)) {
$emphasis = 'u';
} elseif (preg_match(self::$emRegex[$marker], $excerpt['text'], $matches)) {
$emphasis = 'em';
} else {