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authorJohn MacFarlane <jgm@berkeley.edu>2017-02-04 12:56:30 +0100
committerJohn MacFarlane <jgm@berkeley.edu>2017-02-04 12:56:30 +0100
commit18ab8642692caca2716fd9b5a0e6dbfd3d9cf9cc (patch)
tree05f4e9024093e233c131b3494e71265062ffd94a /test/lhs-test.markdown
parent8418c1a7d7e5312dfddbc011adb257552b2a864b (diff)
downloadpandoc-18ab8642692caca2716fd9b5a0e6dbfd3d9cf9cc.tar.gz
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+lhs test
+========
+
+`unsplit` is an arrow that takes a pair of values and combines them to
+return a single value:
+
+``` {.sourceCode .literate .haskell}
+unsplit :: (Arrow a) => (b -> c -> d) -> a (b, c) d
+unsplit = arr . uncurry
+ -- arr (\op (x,y) -> x `op` y)
+```
+
+`(***)` combines two arrows into a new arrow by running the two arrows on a
+pair of values (one arrow on the first item of the pair and one arrow on the
+second item of the pair).
+
+ f *** g = first f >>> second g
+
+Block quote:
+
+> foo bar