Stories for 2008-01-21

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use Perl Daily Newsletter

In this issue:
    * It feels good to get rid of those four lines
    * Perlcast Interviews Ovid about Logic Programming
    * New CPAN Distributions for January 20, 2008

+--------------------------------------------------------------------+
| It feels good to get rid of those four lines                       |
|   posted by brian_d_foy on Sunday January 20, @01:38 (User Journal)|
|   http://use.perl.org/article.pl?sid=08/01/20/0619207              |
+--------------------------------------------------------------------+

This has bothered me far more than it should. I quite often end up
writing test code that looks like this:

  {
  my @log = ();

  no warnings 'redefine';
  *Some::Package::some_func = sub { push @log, [@_] };

  sub get_log {
  my @old_log = @log;
  @log = ();
  return @old_log;
  }
  }

  # Then some tests that call subroutines that end up calling
  some_func.

The idea is to [0]monkeypatch (Perl word of the week) the module I'm
testing so I can make sure it calls some_func with the right arguments.
For example with [1]TextMate::JumpTo I wanted to test that it was going
to invoke /usr/bin/open with the correct args - without actually going
through with it and opening something. I didn't want the tests to spew a
bunch of random windows into the user's text editor.

None of that is what bothers me. What I find troubling is that get_log is
five lines of code just to read and reset the contents of a list. That's
really quite upsetting, right?

Today I decided I could endure it no longer (I may be being a little
theatrical here) so I spent some time thinking about it. Ideally I'd like
to do away with the temporary variable altogether but I can't see a way
to do that. Instead I've settled for this:

  sub get_log { ( my @got, @log ) = @log }

It's not especially pretty but it's better. That temporary still bugs me
though...

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Discuss this story at:
    http://use.perl.org/comments.pl?sid=08/01/20/0619207

Links:
    0. http://en.wikipedia.org/wiki/Monkey_patch
    1. http://search.cpan.org/dist/TextMate-JumpTo/


+--------------------------------------------------------------------+
| Perlcast Interviews Ovid about Logic Programming                   |
|   posted by brian_d_foy on Sunday January 20, @01:39 (User Journal)|
|   http://use.perl.org/article.pl?sid=08/01/20/0619243              |
+--------------------------------------------------------------------+

Back at the Nordic Perl Workshop 2007, I sat down with Ovid to talk about
logic programming. Here is the [0]audio for that interview.

Discuss this story at:
    http://use.perl.org/comments.pl?sid=08/01/20/0619243

Links:
    0. http://www.perlcast.com/audio/Perlcast_Interview_046.mp3


+--------------------------------------------------------------------+
| New CPAN Distributions for January 20, 2008                        |
|   posted by pudge on Sunday January 20, @18:30 (Module Listings)   |
|   http://use.perl.org/article.pl?sid=08/01/20/1530211              |
+--------------------------------------------------------------------+

  * [0]AUBBC1.0
  * [1]Amazon-S3-0.41.2 -- A portable client library for working with and
    managing Amazon S3 buckets and keys.
  * [2]Amazon-S3-0.411 -- A portable client library for working with and
    managing Amazon S3 buckets and keys.
  * [3]CHI-0.02 -- Unified cache interface
  * [4]CPAN-Reporter-1.07_02 -- Adds CPAN Testers reporting to CPAN.pm
  * [5]CPAN-Reporter-1.07_03 -- Adds CPAN Testers reporting to CPAN.pm
  * [6]Compress-LZMA-External-0.31 -- Compress and decompress using LZMA
  * [7]Compress-LZMA-External-0.32 -- Compress and decompress using LZMA
  * [8]Coro-4.37 -- coroutine process abstraction
  * [9]Data-FormValidator-Constraints-Words-0.01 -- Data constraints for
    word inputs.
  * [10]Data-FormValidator-Constraints-Words-0.02 -- Data constraints for
    word inputs.
  * [11]Devel-GDB-2.01 -- Open and communicate a gdb session
  * [12]Encode-JP-Mobile-0.24 -- 日本の携帯電話向け Shift_JIS
    (CP932) / UTF-8 エンコーディング
  * [13]Finance-Currency-Convert-WebserviceX-0.06002 -- Lightweight
    currency conversion using WebserviceX.NET
  * [14]Form-Processor-0.16 -- validate and process form data
  * [15]Handel-Storage-RDBO-1.00002 -- RDBO storage layer for Handel 1.x
  * [16]Hash-AsObject-0.10 -- treat hashes as objects, with arbitrary
    accessors/mutators
  * [17]Lingua-JA-Romanize-Japanese-0.23 -- Romanization of Japanese
    language
  * [18]Lingua-TR-Numbers-0.21 -- Converts numbers into Turkish text.
  * [19]Lingua-ZH-Romanize-Pinyin-0.23 -- Romanization of Standard
    Chinese language
  * [20]Log-Handler-0.38_06 -- Log messages to one or more outputs.
  * [21]Math-Wavelet-Haar-0.06 -- Perl extension for transforming data
    with the Haar Wavelet
  * [22]MetaStore-0.27 -- Set of classes for multiuser web applications.
  * [23]Moxy-0.20 -- Mobile web development proxy
  * [24]Net-Appliance-Session-0.19 -- Run command-line sessions to
    network appliances
  * [25]Net-MRIM-1.05 -- Perl implementation of mail.ru agent protocol
  * [26]OAuth-Lite-1.07 -- OAuth framework
  * [27]PApp-1.4 -- multi-page-state-preserving web applications
  * [28]POE-Component-CPAN-YACSmoke-1.14 -- Bringing the power of POE to
    CPAN smoke testing.
  * [29]POE-Component-WebService-Validator-HTML-W3C-0.02 -- a
    non-blocking POE wrapper around WebService::Validator::HTML::W3C
  * [30]POE-Loop-EV-0.05 -- a bridge that supports EV from POE
  * [31]Perl-Repository-APC-2.000_000279 -- Class modelling "All Perl
    Changes" repository
  * [32]Proc-Exists-0.05 -- quickly check for process existence
  * [33]Search-Estraier-0.09 -- pure perl module to use Hyper Estraier
    search engine
  * [34]Socket-GetAddrInfo-0.08_1 -- RFC 2553's getaddrinfo and
    getnameinfo functions.
  * [35]Socket-GetAddrInfo-0.08_2 -- RFC 2553's getaddrinfo and
    getnameinfo functions.
  * [36]Statistics-Test-WilcoxonRankSum-0.0.1 -- perform the Wilcoxon
    (aka Mann-Whitney) rank sum test on two sets of numeric data.
  * [37]Text-Editor-Easy-0.01 -- The great new Text::Editor::Easy!
  * [38]TextMate-JumpTo-0.04 -- Tell TextMate to jump to a particular
    file, line
  * [39]Tie-CArray-0.14 -- Space-efficient, typed, external C Arrays
    (Alpha)
  * [40]Time-Elapsed-0.24 -- Displays the elapsed time as a human
    readable string.
  * [41]Tk-Bounded-1.0.1 -- Base class for widgets derived and bound
    binded from others
  * [42]WWW-CDBaby-0.05 -- Automate interaction with cdbaby.com!
  * [43]Win32-FindWindow-0.02 -- find windows on Win32 systems
  * [44]Win32-TestServerManager-0.03 -- manage simple test servers on
    Win32
  * [45]Win32-WindowsMedia-0.15.0 -- Base Module for Provisiong and
    control for Windows Media Services
  * [46]perfSONAR_PS-Base-0.04
  * [47]perfSONAR_PS-Client-Echo-0.04 -- A module that provides methods
    for interacting with perfSONAR Echo services.
  * [48]perfSONAR_PS-Client-LS-Remote-0.04 -- A module that provides a
    client API for an LS
  * [49]perfSONAR_PS-Client-Status-MA-0.04 -- A module that provides
    methods for interacting with Status MA servers.
  * [50]perfSONAR_PS-Client-Status-SQL-0.04 -- A module that provides
    methods for interacting with a Status MA database directly.
  * [51]perfSONAR_PS-Client-Topology-MA-0.04 -- A module that provides
    methods for interacting with Topology MA servers.
  * [52]perfSONAR_PS-Client-Topology-XMLDB-0.04 -- A module that provides
    methods for interacting with a Topology MA database directly.
  * [53]perfSONAR_PS-Collectors-Daemon-0.04
  * [54]perfSONAR_PS-Collectors-LinkStatus-0.04 -- A module that will
    collect link status information and store the results into a Link
    Status MA.
  * [55]perfSONAR_PS-DB-File-0.04 -- A module that provides methods for
    adding 'database like' functions to files that contain XML markup.
  * [56]perfSONAR_PS-DB-RRD-0.04 -- A module that provides methods for
    dealing with rrd files through the RRDp perl module.
  * [57]perfSONAR_PS-DB-SQL-0.04 -- A module that provides methods for
    dealing with common SQL databases.
  * [58]perfSONAR_PS-DB-XMLDB-0.04 -- A module that provides methods for
    dealing with the Sleepycat [Oracle] XML database.
  * [59]perfSONAR_PS-Services-Daemon-0.04
  * [60]perfSONAR_PS-Services-LS-0.04
  * [61]perfSONAR_PS-Services-MA-Base-0.04
  * [62]perfSONAR_PS-Services-MA-SNMP-0.04
  * [63]perfSONAR_PS-Services-MA-Status-0.04 -- A module that provides
    methods for the Status MA.
  * [64]perfSONAR_PS-Services-MA-Topology-0.04 -- A module that provides
    methods for the Topology MA.
  * [65]perfSONAR_PS-Status-Common-0.04 -- A module that provides common
    methods for Link Status clients and services within the perfSONAR-PS
    framework.
  * [66]perfSONAR_PS-Topology-Common-0.04 -- A module that provides
    various utility functions for Topology structures.

Discuss this story at:
    http://use.perl.org/comments.pl?sid=08/01/20/1530211

Links:
    0. http://search.cpan.org/~sflex/AUBBC1.0
    1. http://search.cpan.org/~tima/Amazon-S3-0.41.2
    2. http://search.cpan.org/~tima/Amazon-S3-0.411
    3. http://search.cpan.org/~jswartz/CHI-0.02
    4. http://search.cpan.org/~dagolden/CPAN-Reporter-1.07_02
    5. http://search.cpan.org/~dagolden/CPAN-Reporter-1.07_03
    6. http://search.cpan.org/~lbrocard/Compress-LZMA-External-0.31
    7. http://search.cpan.org/~lbrocard/Compress-LZMA-External-0.32
    8. http://search.cpan.org/~mlehmann/Coro-4.37
    9. http://search.cpan.org/~barbie/Data-FormValidator-Constraints-Words-0.01
   10. http://search.cpan.org/~barbie/Data-FormValidator-Constraints-Words-0.02
   11. http://search.cpan.org/~jezra/Devel-GDB-2.01
   12. http://search.cpan.org/~miyagawa/Encode-JP-Mobile-0.24
   13. http://search.cpan.org/~claco/Finance-Currency-Convert-WebserviceX-0.06002
   14. http://search.cpan.org/~hank/Form-Processor-0.16
   15. http://search.cpan.org/~claco/Handel-Storage-RDBO-1.00002
   16. http://search.cpan.org/~nkuitse/Hash-AsObject-0.10
   17. http://search.cpan.org/~kawasaki/Lingua-JA-Romanize-Japanese-0.23
   18. http://search.cpan.org/~burak/Lingua-TR-Numbers-0.21
   19. http://search.cpan.org/~kawasaki/Lingua-ZH-Romanize-Pinyin-0.23
   20. http://search.cpan.org/~bloonix/Log-Handler-0.38_06
   21. http://search.cpan.org/~simcop/Math-Wavelet-Haar-0.06
   22. http://search.cpan.org/~zag/MetaStore-0.27
   23. http://search.cpan.org/~tokuhirom/Moxy-0.20
   24. http://search.cpan.org/~oliver/Net-Appliance-Session-0.19
   25. http://search.cpan.org/~aau/Net-MRIM-1.05
   26. http://search.cpan.org/~lyokato/OAuth-Lite-1.07
   27. http://search.cpan.org/~mlehmann/PApp-1.4
   28. http://search.cpan.org/~bingos/POE-Component-CPAN-YACSmoke-1.14
   29. http://search.cpan.org/~zoffix/POE-Component-WebService-Validator-HTML-W3C-0.02
   30. http://search.cpan.org/~agrundma/POE-Loop-EV-0.05
   31. http://search.cpan.org/~andk/Perl-Repository-APC-2.000_000279
   32. http://search.cpan.org/~brianski/Proc-Exists-0.05
   33. http://search.cpan.org/~dpavlin/Search-Estraier-0.09
   34. http://search.cpan.org/~pevans/Socket-GetAddrInfo-0.08_1
   35. http://search.cpan.org/~pevans/Socket-GetAddrInfo-0.08_2
   36. http://search.cpan.org/~ingrif/Statistics-Test-WilcoxonRankSum-0.0.1
   37. http://search.cpan.org/~grommier/Text-Editor-Easy-0.01
   38. http://search.cpan.org/~andya/TextMate-JumpTo-0.04
   39. http://search.cpan.org/~rurban/Tie-CArray-0.14
   40. http://search.cpan.org/~burak/Time-Elapsed-0.24
   41. http://search.cpan.org/~dmpetit/Tk-Bounded-1.0.1
   42. http://search.cpan.org/~grantg/WWW-CDBaby-0.05
   43. http://search.cpan.org/~pia/Win32-FindWindow-0.02
   44. http://search.cpan.org/~ishigaki/Win32-TestServerManager-0.03
   45. http://search.cpan.org/~shamrock/Win32-WindowsMedia-0.15.0
   46. http://search.cpan.org/~perfsonar/perfSONAR_PS-Base-0.04
   47. http://search.cpan.org/~perfsonar/perfSONAR_PS-Client-Echo-0.04
   48. http://search.cpan.org/~perfsonar/perfSONAR_PS-Client-LS-Remote-0.04
   49. http://search.cpan.org/~perfsonar/perfSONAR_PS-Client-Status-MA-0.04
   50. http://search.cpan.org/~perfsonar/perfSONAR_PS-Client-Status-SQL-0.04
   51. http://search.cpan.org/~perfsonar/perfSONAR_PS-Client-Topology-MA-0.04
   52. http://search.cpan.org/~perfsonar/perfSONAR_PS-Client-Topology-XMLDB-0.04
   53. http://search.cpan.org/~perfsonar/perfSONAR_PS-Collectors-Daemon-0.04
   54. http://search.cpan.org/~perfsonar/perfSONAR_PS-Collectors-LinkStatus-0.04
   55. http://search.cpan.org/~perfsonar/perfSONAR_PS-DB-File-0.04
   56. http://search.cpan.org/~perfsonar/perfSONAR_PS-DB-RRD-0.04
   57. http://search.cpan.org/~perfsonar/perfSONAR_PS-DB-SQL-0.04
   58. http://search.cpan.org/~perfsonar/perfSONAR_PS-DB-XMLDB-0.04
   59. http://search.cpan.org/~perfsonar/perfSONAR_PS-Services-Daemon-0.04
   60. http://search.cpan.org/~perfsonar/perfSONAR_PS-Services-LS-0.04
   61. http://search.cpan.org/~perfsonar/perfSONAR_PS-Services-MA-Base-0.04
   62. http://search.cpan.org/~perfsonar/perfSONAR_PS-Services-MA-SNMP-0.04
   63. http://search.cpan.org/~perfsonar/perfSONAR_PS-Services-MA-Status-0.04
   64. http://search.cpan.org/~perfsonar/perfSONAR_PS-Services-MA-Topology-0.04
   65. http://search.cpan.org/~perfsonar/perfSONAR_PS-Status-Common-0.04
   66. http://search.cpan.org/~perfsonar/perfSONAR_PS-Topology-Common-0.04



Copyright 1997-2006 pudge.  All rights reserved.


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