Lenses and zippers and monads are some of those really neat concepts when you're looking at Haskell or ML, but then you're like "This is cool, but I just need to do X with my tree." and then you're right back to XKCD 224 . . .

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re^4: Augmenting and reducing data structures by Fletch
in thread Augmenting and reducing data structures by sciurius

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