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An adapter between irregex and ropes

This Chicken Scheme extension, rope-irregex, provides two chunkers for irregex’s chunked API compatible with ropes from the ropes egg.

One is called rope-chunker, which is directly compatible with ropes, and the other saves a lot of CPU memory, it’s called flat-chunker, and you get a rope->flat to wrap your rope with.

In other words, these two are equivalent:

(irregex-search/chunked "ana" rope-chunker (rope "banana"))
(irregex-search/chunked "ana" flat-chunker (rope->flat (rope "banana")))

The second way is faster than the first and also saves memory.

Either way, irregex-match-subchunk will return a full rope, not a flat, so if you then wanna do more flat-chunked irregexing on that rope you’ll have to call rope->flat again.