Properties5
| Type | Article |
| Author | Philip Wadler |
| Date | Jul 5, 2002 |
| URL | https://homepages.inf.ed.ac.uk/wadler/papers/prettier/prettier.pdf |
| Note created | Jul 5, 2002 |
there is no poem as lovely as a tree. In our love affair with the tree it is parsed, pattern matched, pruned — and printed.