I wrote pred-cond for Midje way back, which does what you want.
https://github.com/marick/Midje/blob/master/src/midje/clojure/core.clj#L176
Example use:
https://github.com/marick/Midje/blob/master/src/midje/parsing/1_to_explicit_form/facts.clj#L100
Like normal cond pred-cond will short-circuit once it hits a match (so
unlike con-)
On Tue, Feb 11, 2014 at 11:36 PM, s...@corfield.org wrote:
I use cond- quite a lot but I find myself often wanting a version that
uses predicate functions rather than expressions which would seem
more “threaded”. Am I just missing a better way to write these things?
For example:
(cond- accounts
(empty? accounts) (conj “stuff”))
That just screams for something like:
(condp- accounts
empty? (conj “stuff”))
Then you could thread the predicates:
(condp- a
p1 (f1 args)
p2 (f2 args))
which would be:
(let [x (if (p1 a) (f1 a args) a)]
(if (p2 x) (f2 x args) x))
Suggestions?
Sean Corfield -- (904) 302-SEAN
An Architect's View -- http://corfield.org
World Singles, LLC - http://worldsingles.com
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