- Oleg Kiselyov
Iteratee IO is a style of incremental input processing with precise resource control. The style encourages building input processors from a user-extensible set of primitives by chaining, layering, pairing and other modes of compositions. The programmer is still able, where needed, to precisely control look-ahead, the allocation of buffers, file descriptors and other resources. The style is especially suitable for processing of communication streams, large amount of data, and data undergone several levels of encoding such as pickling, compression, chunking, framing. It has been used for programming high-performance (HTTP) servers and web frameworks, in computational linguistics and financial trading.
We exposit programming with iteratees, contrasting them with Lazy IO and the Handle-based, |stdio|-like IO. We relate them to online parser combinators. We introduce a simple implementation as free monads, which lets us formally reason with iteratees. As an example, we validate several equational laws and use them to optimize iteratee programs. The simple implementation helps understand existing implementations of iteratees and derive new ones.
- Book Title
- Functional and Logic Programming
- Book Subtitle
- 11th International Symposium, FLOPS 2012, Kobe, Japan, May 23-25, 2012. Proceedings
- pp 166-181
- Print ISBN
- Online ISBN
- Series Title
- Lecture Notes in Computer Science
- Series Volume
- Series ISSN
- Springer Berlin Heidelberg
- Copyright Holder
- Springer-Verlag Berlin Heidelberg
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