Error when parse lego.parse('[\S]') or similar regex

[uynil]

When I parse regex like [\S], it will give error like

>>> lego.parse('[\S\s]')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/yyy/.pyenv/versions/xx/lib/python3.6/site-packages/greenery/lego.py", line 68, in parse
    return pattern.parse(string)
  File "/Users/yy/.pyenv/versions/xx/lib/python3.6/site-packages/greenery/lego.py", line 244, in parse
    raise Exception("Could not parse '" + string + "' beyond index " + str(i))
Exception: Could not parse '[\S\s]' beyond index 0

[qntm]

Yeah, negated shorthands \D, \W and \S are not recognised inside a charclass. This would have been fiddly but maybe I'll implement it sometime. Fortunately there is a trivial workaround, instead of writing [\S] just write [^\s] or \S, and instead of writing [\S\s] just write .. If you have something more complex like [\Wdef], render it as \W|[def] and then do what greenery is designed to do:

>>> from greenery import lego
>>> str(lego.parse('\\W|[def]').reduce())
'[^0-9A-Z_abcg-z]'