Bug in Lpeg v0.11/v0.12??

[Juan Carlos González Amestoy <jcgamestoy@...>]

The following code:

local re=require('re')

local a="[c]?"

re.compile(a)

shows the error: (using luajit in linux / macosx)

ERROR:  bad argument #1 to '?' (lpeg-pattern expected, got string)

if line 2 is changed to:

local a="[cd]?"

works ok.

in lpeg v0.10 both works ok.

--
Juan Carlos González Amestoy