Haskell Weekly News: March 20, 2006 Greetings, and thanks for reading issue 29 of HWN, a weekly newsletter covering developments in the Haskell community. Each Monday, new editions are posted to [1]the Haskell mailing list and to [2]The Haskell Sequence. [3]RSS is also available. 1. http://www.haskell.org/mailman/listinfo/haskell 2. http://sequence.complete.org/ 3. http://sequence.complete.org/node/feed Announcements * lhs2TeX version 1.11. Andres Loeh [4]announced lhs2TeX version 1.11, a preprocessor to generate LaTeX code from literate Haskell sources. lhs2TeX includes the following features: + Highly customized output. + Liberal parser -- no restriction to Haskell 98. + Generate multiple versions of a program or document from a single source. + Active documents: call Haskell to generate parts of the document (useful for papers on Haskell). + A manual explaining all the important aspects of lhs2TeX. 4. http://article.gmane.org/gmane.comp.lang.haskell.general/13414 Haskell' This section covers activity on [5]Haskell'. * [6]Dropping implicit universal quantification * [7]Refine overlap handling for instance declarations * [8]Ranges and the Enum class * [9]Strict tuples * [10]Time library * [11]Associated types 5. http://hackage.haskell.org/trac/haskell-prime 6. http://thread.gmane.org/gmane.comp.lang.haskell.prime/914 7. http://thread.gmane.org/gmane.comp.lang.haskell.prime/918 8. http://thread.gmane.org/gmane.comp.lang.haskell.prime/937 9. http://thread.gmane.org/gmane.comp.lang.haskell.prime/948 10. http://thread.gmane.org/gmane.comp.lang.haskell.prime/949 11. http://article.gmane.org/gmane.comp.lang.haskell.prime/944 Discussion * Deep Functors. Oleg Kiselyov [12]described an fmap over arbitrarily deep `collections': lists of maybes of maps of IOs, etc. -- arbitrarily nested fmappable things. 12. http://article.gmane.org/gmane.comp.lang.haskell.cafe/11951 * GHC 6.4.2. Simon Marlow [13]put out a heads up for the forthcoming 6.4.2 release of GHC. The rough timescale is to go into release candidate testing in about a week, and have two weeks of release candidates before the final release. 13. http://article.gmane.org/gmane.comp.lang.haskell.cvs.ghc/13935 * Hexdump. Dominic Steinitz [14]mentioned a "hexdump" function he'd written, posing a question about where it would live in the module hierarchy.. 14. http://news.gmane.org/gmane.comp.lang.haskell.libraries Quote of the Week ihope :: My factorial function uses GADTs. Contributing to HWN You can help us create new editions of this newsletter. Please see the [15]contributing information, send stories to dons -at- cse.unsw.edu.au. The darcs repository is available at darcs get http://www.cse.unsw.edu.au/~dons/code/hwn 15. http://haskell.org/haskellwiki/HWN