19:36:46jackdanielgray stream was a proposal which didn't make it to the spec but is implemented by all CL implementations I'm aware of
19:36:53jackdanieltrivial-gray-streams is a portability layer for that
19:48:03nyefIIRC, there's one stream operation not reflected in gray-streams... Might have been CLOSE.
19:54:37jackdanielright, there is stream-close for that
19:56:22jackdanielalso input-stream-p / output-stream-p are not mandated to be generic functions (usually they are, but clisp's gray streams are a noticable exception)
19:57:44jackdanielmy bad, it may be not reflected at all and I might have made it up accidently
20:26:28jackdanielI'm very glad I have written the hierarchy debugging tool
20:26:41jackdanielwithout it I wouldn't be able to pin point problems I'm fixing now
20:26:51jackdanielI've created mixed-mirror pane hierarchy
20:27:37jackdanieland it seems our code doesn't like a situation, where we have a mirror being child of not mirrored sheet which is child of mirrored sheet
20:30:41jackdanieli.e this situation: http://hellsgate.pl/files/75cb83a0 (red is mirror, green is normal)