Comment #28 on issue 854 by pekka.klarck: Regular expression support for
embedded argument syntax
http://code.google.com/p/robotframework/issues/detail?id=854
Unfortunately "\}" works only when "}" is interpreted literally but not
otherwise:
re.search('\d{4}', '2011') is not None
True
re.search('\d{4\}', '2011') is not None
False
We thus need to unescape '\}' in order to be use it. I implemented that
first so that the whole patter was unescaped using utils.unescape, but
after that it was necessary to unescape all backslashes like in '\\d{4\}'.
I didn't like that too much and decided to handle unescaping simply
with 'patern.replace(r"\}", "}")'. I commit that implementation next.
