Re: [Chicken-users] matchable egg usage question

[Alex Shinn]

On Sun, Jan 30, 2011 at 1:40 PM, Alex Shinn <address@hidden> wrote:
>
> Because it searches for patterns where the head of the tree
> at each step along the path matches _, and the leaf matches
> '(bar 1).  The head is not searched as a potential leaf.

Sorry, whether the head is checked as a leaf or not
is irrelevant in this case - the node must either be a
list with a matching head pattern, or the leaf pattern.
In this case it doesn't match the leaf, so the entire
head (a (b (bar 1))) is matched as _, and then the
tail of () recursively searched (and fails).  It won't
match one pattern and then recursively search
within the matched value for other patterns.

-- 
Alex