src/includes/classes/Core/Utils/RegexEscape.php
public function m0EscNoVws(string $escapable_chars, bool $ungreedy = false): string
    {
        $escapable_chars = $this->__invoke($escapable_chars);
        return '(?:[^\v'.$escapable_chars.'\\\\]|\\\\['.$escapable_chars.'])*'.($ungreedy ? '?' : '');
    }
public function m0EscNoVws(string $escapable_chars, bool $ungreedy = false): string
    {
        $escapable_chars = $this->__invoke($escapable_chars);
        return '(?:[^\v'.$escapable_chars.'\\\\]|\\\\['.$escapable_chars.'])*'.($ungreedy ? '?' : '');
    }
Matches zero or more escapable chars,
and anything that's not vertical whitespace.

@since 170211.63148 Markdown enhancements.

@param string $escapable_chars Escapable chars.
@param bool   $ungreedy        Ungreedy matching?

@return string Regex fragment suitable for `preg_*()`.