[Haskell-cafe] ANN: regex-tdfa-1.1.0

ChrisK haskell at list.mightyreason.com
Wed Mar 18 08:23:58 EDT 2009

I have just uploaded the new regex-tdfa-1.1.0 to hackage.  This version is a 
small performance update to the old regex-tdfa-1.0.0 version.

Previously all text (e.g. ByteString) being search was converted to String and 
sent through a single engine.

The new version uses a type class and SPECIALIZE pragmas to avoid converting to 
String.  This should make adding support for searching other Char containers 
easy to do.

The new version includes six specialized engine loops to take advantage of 
obvious optimizations of the traversal.  The previous version had only a couple 
of such engines.  The new code paths have been tested for correctness and no 
performance degradations have shown up.


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