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| generator = (fn) -> | |
| nexts = [] | |
| fn (next) -> | |
| if (x = nexts.indexOf next) != -1 | |
| nexts.push x | |
| else nexts.push next | |
| step = 0 | |
| next: -> | |
| next = nexts[step++] | |
| if next != undefined |
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| {-# LANGUAGE CPP #-} | |
| {-# LANGUAGE MagicHash #-} | |
| -- | This module provide fast memchr implemented with ghc primitives. | |
| -- | |
| -- http://lemire.me/blog/2017/01/20/how-quickly-can-you-remove-spaces-from-a-string/ | |
| -- https://graphics.stanford.edu/~seander/bithacks.html | |
| -- https://jameshfisher.github.io/2017/01/24/bitwise-check-for-zero-byte.html | |
| -- | |
| -- |