When attempting to use a #/hash/pound character within a regex I discovered that it and all following characters would be treated as a comment unless the entire regex was enclosed within single quotes. For example:

pattern:    '/#(.+)/'

will parse the regex as intended wheras

pattern:    /'#(.+)'/

for example returns

ERROR: [/mapping/irc/mapping/channel/pattern] '/'': should be '/..../'.

and the same occurs for escaping or no quoting - all characters including and after the hash are treated as comment by the flow control in the kwalify parser as far as I can tell. This is not the way that YAML parses an escaped or regex enclosed hash character.

I don't know if this is the behaviour you are aiming for (I would suggest that keeping in line with the way that YAML parses a hash would be more intuitive), but either the behaviour or the documentation should probably be changed to at least clarify what the expected behaviour is.

EDIT: Kwalify version 0.7.2 on Ruby 1.8.7 also I am dumb for not including my versions