panic: regexp: Compile("(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\\p{L}\\p{N}]?\p{L}+|\p{N}{1}| ?[^\\s\\p{L}\\p{N}\r\n]+|\s*[\r\n]+|\s+(?!\S)|\s+"): error parsing regexp: invalid or unsupported Perl syntax: (?! [recovered]
panic: regexp: Compile("(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\\p{L}\\p{N}]?\p{L}+|\p{N}{1}| ?[^\\s\\p{L}\\p{N}\r\n]+|\s*[\r\n]+|\s+(?!\S)|\s+"): error parsing regexp: invalid or unsupported Perl syntax: (?!