[Haskell] Haskell Weekly News: November 11, 2007
Don Stewart
dons at galois.com
Sun Nov 11 21:17:16 EST 2007
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Haskell Weekly News
http://sequence.complete.org/hwn/20071111
Issue 67 - November 11, 2007
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Welcome to issue 67 of HWN, a newsletter covering developments in the
[1]Haskell community.
This week sees the release of GHC 6.8.1, to rave reviews. There have
been many reports of large performance improvements for Haskell
programs, from small to large production systems. Congratulations to
the GHC team for such a great release!
1. http://haskell.org/
Announcements
GHC 6.8.1. Ian Lynagh [2]announced the release of GHC 6.8.1, a new
major release of GHC. There have been a number of significant changes
since the last major release, including: Haskell Program Coverage
support, the GHCi debugger, pointer tagging in the runtime (with up to
10-15% speedups), constructor specialisation, improved optimisations
and much more! The [3]full release notes are available.
2. http://article.gmane.org/gmane.comp.lang.haskell.general/15733
3. http://haskell.org/ghc/docs/6.8.1/html/users_guide/release-6-8-1.html
Gtk2Hs 0.9.12.1. Duncan Coutts [4]announced version 0.9.12.1 of gtk2hs
is [5]now available. gtk2hs is the standard graphics library for
Haskell.
4. http://article.gmane.org/gmane.comp.lang.haskell.general/15738
5. http://haskell.org/gtk2hs/download/
Lazy SmallCheck 0.1. Matthew Naylor [6]announced Lazy SmallCheck 0.1,
a library for exhaustive, demand-driven testing of Haskell programs.
6. http://article.gmane.org/gmane.comp.lang.haskell.general/15702
HDBC 1.1.3. John Goerzen [7]announced new releases of HDBC, the
Haskell database connectivity kit, and its associated backends (for
sqlite3, postgresql, odbc).
7. http://article.gmane.org/gmane.comp.lang.haskell.general/15729
xmobar. Andrea Rossato [8]announced the release of Xmobar-0.8, a
minimalistic, text based, status bar. It was specifically designed to
work with the XMonad Window Manager.
8. http://article.gmane.org/gmane.comp.lang.haskell.cafe/31465
Flymake Haskell. Daisuke Ikegami [9]announced flymake haskell, emacs
bindings for interactive Haskell editing.
9. http://article.gmane.org/gmane.comp.lang.haskell.cafe/31453
network bytestring. Johan Tibbel [10]announced, strict ByteString
versions of the recv/send family of functions for efficient network
IO.
10. http://article.gmane.org/gmane.comp.lang.haskell.general/15645
ByteString search. Bryan O'Sullivan [11]announced a cabalised version
of the fast Boyer-Moore and Knuth-Morris-Pratt string search code for
ByteStrings
11. http://article.gmane.org/gmane.comp.lang.haskell.cafe/31229
Generating free theorems. Janis Voigtlaender [12]announced an improved
version of the online and offline free theorems generator for Haskell
12. http://article.gmane.org/gmane.comp.lang.haskell.general/15693
hslogger4j 0.1.1. Bjorn Buckwalter [13]announced Hslogger4j, which
provides handlers for hslogger (John Goerzen's Haskell logging
framework) that are compatible with log4j's XMLLayout.
13. http://article.gmane.org/gmane.comp.lang.haskell.general/15707
Infinity 0.3. Austin Seipp [14]announced `infinity', an IRC bot in
Haskell
14. http://article.gmane.org/gmane.comp.lang.haskell.cafe/31228
hswm. Remi Turk [15]announced the first and last release of hswm, a
Haskell window manager.
15. http://article.gmane.org/gmane.comp.lang.haskell.cafe/30804
Hackage
This week's new libraries in [16]the Hackage library database.
16. http://hackage.haskell.org/
* xmobar-0.8. Uploaded by Andrea Rossato. [17]xmobar, a minimalistic
text based status bar
* hsSqlite3-0.0.4. Uploaded by Evgeny Jukov. [18]hsSqlite3, bindings
for Sqlite3
* cabal-rpm-0.3.2. Uploaded by Bryan OSullivan. [19]cabal-rpm turns
Haskell Cabal source packages into source and binary RPM packages.
* selenium-0.2.2. Uploaded by Aaron Tomb. [20]selenium, Haskell
bindings to communicate with a Selenium Remote Control server.
This package makes it possible to use Haskell to write test
scripts that exercise web applications through a web browser.
* HPDF-1.3. Uploaded by alpheccar. [21]HPDF. A PDF library with
support for several pages, page transitions, outlines,
annotations, compression, colors, shapes, patterns, jpegs, fonts,
typesetting ...
17. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/xmobar-0.8
18. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/hsSqlite3-0.0.4
19. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/cabal-rpm-0.3.2
20. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/selenium-0.2.2
21. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HPDF-1.3
* FileManip-0.3.1. Uploaded by Bryan OSullivan. [22]FileManip, a
Haskell library for working with files and directories. Includes
code for pattern matching, finding files, modifying file contents,
and more.
* stringsearch-0.2. Uploaded by Bryan OSullivan. [23]stringsearch,
fast search of ByteStrings.
* nano-md5-0.1. Uploaded by Don Stewart. [24]nano-md5, ByteString
bindings to OpenSSL.
* denominate-0.4.1. Uploaded by Calvin Smith. [25]denominate
provides a main program for performing bulk file and directory
renaming, using a built-in filename converter or user-defined
converters.
* ContArrow 0.0.2. Uploaded by Evgeny Jukov. [26]ContArrow,
Control.Arrow.Transformer.Cont
22. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/FileManip-0.3.1
23. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/stringsearch-0.2
24. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/nano-md5-0.1
25. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/denominate-0.4.1
26. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
* state 0.0.2. Uploaded by Evgeny Jukov. [27]state. State.
* infinity 0.3. Uploaded by Austin Seipp. [28]infinity, a tiny,
pluggable irc bot.
* unix-compat 0.1.2.1. Uploaded by Duncan Coutts. [29]unix-compat,
portable implementations of parts of the unix package.
* Ranged-sets 0.1.1. Uploaded by Paul Johnson. [30]Ranged-sets. A
ranged set is an ordered list of ranges.
* IFS 0.1.1. Uploaded by alpheccar. [31]IFS, a library to describe
IFS and generate PPM pictures from the descriptions
27. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
28. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
29. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
30. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
31. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
* bktrees 0.1.3. Uploaded by Josef Svenningsson. [32]bktrees.
Burhard-Keller trees provide an implementation of sets which apart
from the ordinary operations also has an approximate member
search, allowing you to search for elements that are of a certain
distance from the element you are searching for.
* pqc 0.2. Uploaded by Don Stewart. [33]pqc, a parallel batch driver
for QuickCheck
* strict 0.2. Uploaded by Don Stewart. [34]strict, strict data types.
* HsSVN 0.2. Uploaded by PHO. [35]HsSVN, (Part of) Subversion
binding for Haskell
* HsHyperEstraier 0.2. Uploaded by PHO. [36]HsHyperEstraier, a
HyperEstraier binding for Haskell. HyperEstraier is an embeddable
full text search engine which is supposed to be independent to any
particular natural languages.
32. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
33. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
34. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
35. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
36. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
* HsOpenSSL 0.3.1. Uploaded by PHO. [37]HsOpenSSL, a (part of)
OpenSSL binding for Haskell. It can generate RSA and DSA keys,
read and write PEM files, generate message digests, sign and
verify messages, encrypt and decrypt messages.
* Finance-Quote-Yahoo 0.4. Uploaded by Brad Clawsie.
[38]Finance-Quote-Yahoo, obtain quote data from finance.yahoo.com
* LRU 0.1.1. Uploaded by Adam Langley. [39]LRU, an LRU data
structure
* base 3.0. Uploaded by Ross Paterson. [40]base, the Prelude and its
support libraries, and a large collection of useful libraries
ranging from data structures to parsing combinators and debugging
utilities.
* regex-posix 0.72.0.2. Uploaded by Duncan Coutts. [41]regex-posix,
posix regex support.
37. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/
38. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/Finance-Quote-Yahoo-0.4
39. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/LRU-0.1.1
40. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/base-3.0.0.0
41. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/regex-posix-0.72.0.2
* xhtml 3000.0.2.1. Uploaded by Bjorn Bringert. [42]xhtml,
combinators for producing XHTML 1.0, including the Strict,
Transitional and Frameset variants.
* Win32 2.1.0.0. Uploaded by Esa Ilari Vuokko. [43]Win32, a binding
to part of the Win32 library
* unix 2.2.0.0. Uploaded by Ross Paterson. [44]unix, POSIX
functionality
* time 1.1.2.0. Uploaded by Ross Paterson. [45]time, time handling.
* template-haskell 2.2.0.0. Uploaded by Ross Paterson.
[46]template-haskell, support for manipulating Haskell syntax
trees
42. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/xhtml-3000.0.2.1
43. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/Win32-2.1.0.0
44. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/unix-2.2.0.0
45. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/time-1.1.2.0
46. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/template-haskell-2.2.0.0
* stm 2.1.1.0. Uploaded by Ross Paterson. [47]stm, software
transational memory
* regex-compat 0.71.0.1. Uploaded by Ross Paterson.
[48]regex-compat, backwards compatible regex support
* regex-base 0.72.0.1. Uploaded by Ross Paterson. [49]regex-base,
regex support.
* readline 1.0.1.0. Uploaded by Ross Paterson. [50]readline, an
interface to the GNU readline library
* random 1.0.0.0. Uploaded by Ross Paterson. [51]random, random
number generation
47. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/stm-2.1.1.0
48. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/regex-compat-0.71.0.1
49. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/regex-base-0.72.0.1
50. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/readline-1.0.1.0
51. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/random-1.0.0.0
* QuickCheck 1.1.0.0. Uploaded by Ross Paterson. [52]QuickCheck,
automatic testing of Haskell programs
* process 1.0.0.0. Uploaded by Ross Paterson. [53]process, jobs and
processes
* pretty 1.0.0.0. Uploaded by Ross Paterson. [54]pretty, pretty
printing library.
* parsec 2.1.0.0. Uploaded by Ross Paterson. [55]parsec, monadic
parser combinators.
* parallel 1.0.0.0. Uploaded by Ross Paterson. [56]parallel, support
for parallel programming
52. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/QuickCheck-1.1.0.0
53. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/process-1.0.0.0
54. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/pretty-1.0.0.0
55. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/parsec-2.1.0.0
56. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/parallel-1.0.0.0
* packedstring 0.1.0.0. Uploaded by Ross Paterson. [57]packedstring,
packed strings
* OpenGL 2.2.1.1. Uploaded by Ross Paterson. [58]OpenGL, binding for
the OpenGL graphics system
* OpenAL 1.3.1.1. Uploaded by Ross Paterson. [59]OpenAL, binding to
the OpenAL cross-platform 3D audio API.
* old-time 1.0.0.0. Uploaded by Ross Paterson. [60]old-time, time
library.
* alex 2.2. Uploaded by Simon Marlow. [61]alex is a tool for
generating lexical analysers in Haskell
57. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/packedstring-0.1.0.0
58. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/OpenGL-2.2.1.1
59. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/OpenAL-1.3.1.1
60. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/old-time-1.0.0.0
61. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/alex-2.2
* Cabal 1.2.2.0. Uploaded by Duncan Coutts. [62]Cabal is the
framework for packaging Haskell software
* HaXml 1.19.1. Uploaded by Malcolm Wallace. [63]HaXml, Utilities
for manipulating XML documents
* HDBC-odbc 1.1.3.0. Uploaded by John Goerzen. [64]HDBC-odbc, ODBC
driver for HDBC
* HDBC-postgresql 1.1.3.0. Uploaded by John Goerzen.
[65]HDBC-postgresql is a PostgreSQL driver for HDBC
* HDBC-sqlite3 1.1.3.0. Uploaded by John Goerzen. [66]HDBC-sqlite3
is a Sqlite v3 driver for HDBC
62. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/Cabal-1.2.2.0
63. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HaXml-1.19.1
64. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HDBC-odbc-1.1.3.0
65. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HDBC-postgresql-1.1.3.0
66. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HDBC-sqlite3-1.1.3.0
* HDBC 1.1.3. Uploaded by John Goerzen. [67]HDBC is a Haskell
Database library
* X11 1.3.0. Uploaded by Don Stewart. [68]X11 is a library of
bindings to the X11 libraries and server
* HsOpenSSL 0.3. Uploaded by Masatake Daimon. [69]HsOpenSSL, (Part
of) OpenSSL binding for Haskell
* Imlib 0.1. Uploaded by Cale Gibbard. [70]Imlib, Haskell binding
for Imlib 2
* Stream 0.2.2. Uploaded by Wouter Swierstra. [71]Stream, a library
for manipulating infinite lists.
67. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HDBC-1.1.3
68. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/X11-1.3.0
69. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HsOpenSSL-0.3
70. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/Imlib-0.1
71. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/Stream-0.2.2
* sat 1.0. Uploaded by AndriiZvorygin. [72]sat, CNF SATisfier
* torrent 2007.10.27. Uploaded by David Himmelstrup. [73]torrent,
BitTorrent file parser
* bencode 0.2. Uploaded by David Himmelstrup. [74]bencode, Parser
and printer for bencoded data.
* SDL 0.5.1. Uploaded by David Himmelstrup. [75]SDL, binding to
libSDL
* NGrams 1.0. Uploaded by Justin Bailey. [76]ngrams, Simple
application for calculating n-grams using Google
72. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/sat-1.0
73. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/torrent-2007.10.27
74. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/bencode-0.2
75. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/SDL-0.5.1
76. http://hackage.haskell.org/cgi-bin/hackage-scripts/package/NGrams-1.0
Discussion
Bootstrapping Haskell. Andrew Copping [77]wondered how the first
Haskell compilers were bootstrapped, leading to some interesting
historical details.
GHC 6.8 performance. Dan Piponi [78]asked about Haskell performance
for low level array manipulation, with some excellent speedups
produced by GHC 6.8
77. http://thread.gmane.org/gmane.comp.lang.haskell.cafe/31459
78. http://thread.gmane.org/gmane.comp.lang.haskell.cafe/31314
Jobs
Software Development Engineer at MSR. Don Syme announced that [79]the
F Sharp team is hiring! We have two positions open right now. The
first is a software development engineer specializing in Visual Studio
and libraries. The second Post Calendar is a software development
engineer
79. http://cs.hubfs.net/blogs/f_team/archive/2007/10/30/3900.aspx
PhD position at Chalmers. John Hughes [80]announced that the
Functional Programming group at Chalmers is seeking to recruit a PhD
student to work on domain-specific languages embedded in Haskell for
hardware design, and for programming graphics processors. PhD
positions in Sweden are 'real jobs', paying a respectable salary for
up to five years.
80. http://article.gmane.org/gmane.comp.lang.haskell.general/15714
Blog noise
[81]Haskell news from the [82]blogosphere.
* [83]Scala for bioinformatics
* [84]I like Haskell a lot
* [85]Haskell history
* [86]Continuation Passing Style for Monads
* [87]Abuse: Is it ruby? Is it Haskell? It's both!
* [88]Learning Haskell?
* [89]For loops in Haskell
* [90]A Simple Programming Puzzle Seen Through Three Differenent Lenses
81. http://planet.haskell.org/
82. http://haskell.org/haskellwiki/Blog_articles
83. http://tiago.org/ps/2007/10/26/scala-for-bioinformatics/
84. http://www.noulakaz.net/weblog/2007/04/20/i-like-haskell-a-lot/
85. http://caos.di.uminho.pt/~ulisses/blog/2007/10/27/haskell-history/
86. http://r6.ca/blog/20071028T162529Z.html
87. http://meta-meta.blogspot.com/2007/05/abuse-is-it-ruby-is-it-haskell-its-both.html
88. http://www.dynamicdrive.com/forums/showthread.php?t=26094
89. http://osfameron.vox.com/library/post/for-loops-in-haskell.html?_c=feed-atom
90. http://thraxil.org/users/anders/posts/2007/10/30/A-Simple-Programming-Puzzle-Seen-Through-Three-Different-Lenses/
* [91]Scala Makes Me Think
* [92]Haskell Substring Function
* [93]Multicore Programming and Automatic Parallelisation
* [94]Spinoza SOS in Haskell
* [95]Why not just use Haskell?
* [96]Chain delegates (in Haskell)
* [97]Parser Combinators in C
* [98]Will hybrid languages like D render functional languages like Haskell, OCaml and Common Lisp irrelevant?
* [99]Category Theory for the Java Programmer
* [100]Benchmarking ray tracing, Haskell vs. OCaml
91. http://blog.snowtide.com/2007/10/31/scala-makes-me-think
92. http://ironmonkey.blogspot.com/2007/10/haskell-substring-function_31.html
93. http://hnr.dnsalias.net/wp/?p=31
94. http://seta07.blogspot.com/2007/10/spinoza-sos-in-haskell.html
95. http://www.hackinghat.com/index.php/c/66
96. http://thoughtspam.spaces.live.com/Blog/cns!253515AE06513617!454.entry
97. http://www.math.chalmers.se/~koen/ParserComboC/parser-combo-c.html
98. http://pinderkent.blogsavy.com/archives/141
99. http://reperiendi.wordpress.com/2007/11/03/category-theory-for-the-java-programmer/
100. http://augustss.blogspot.com/2007/11/benchmarking-ray-tracing-haskell-vs.html
* [101]Some lambda calculus examples
* [102]Beautiful timetables
* [103]References, Arrows and Categories
* [104]Anamorphisms in Ruby
* [105]Type metaprogramming in Haskell and C++
* [106]A Small Combinatorial Library
101. http://augustss.blogspot.com/2007/11/some-lambda-calculus-examples-syntax-in.html
102. http://onthebalcony.wordpress.com/2007/11/11/beautiful-timetables/
103. http://twan.home.fmf.nl/blog/haskell/References-Arrows-and-Categories.details
104. http://weblog.raganwald.com/2007/11/really-useful-anamorphisms-in-ruby.html
105. http://www.rubinsteyn.com/template_insanity.html
106. http://sigfpe.blogspot.com/2007/11/small-combinatorial-library.html
Quotes of the Week
* faxathisia: Omg! I spent 2 days writing this code and it's worked
the first time I run it. Only possible with Haskell :D
* anonymous: The thing is Haskell isn't suited for young people,
whereas the OBJECT model of C++ is
* sethg: I feel like I still dont understand comonads
* fnord123: Haskell mainly helps with my C++ template coding when
I'm doing money oriented programming
* Tac-Tics: I get the feeling if all I ever use is the IO monad,
someone here will shower me in holy monad fire and cleanse the
evil from me.... leaving burn marks all over
* Anton van Straaten: there's a new movement towards 'functional
eating' which involves using a knife and fork (think ML) or
chopsticks (Haskell ;) instead of a chainsaw. Its proponents claim
that this approach is far superior, but chainsaw fans are
skeptical.
* SamB: what happens in the monad... stays in the monad...
* Brent Yorgey: Friends don't let friends write in COBOL.
* Bulat Ziganshin: It's a whole new era in low-level GHC programming
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