Ruby Weekly News: 10/14/2002
A summary of activity on the ruby-talk mailing list, brought to you
this week by Holden Glova.
ANNOUNCEMENTS
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XMLscan 0.1.1
UENO Katsuhiro has released a new version of XMLscan. XMLscan
is a non-validating XML parser written in 100% pure Ruby. Get
XMLscan([1]).
Coco/Rb LL(1)
Mark Robert has released Coco/Rb. Coco/Rb generates recursive
descent parsers and their associated scanners from LL(1)
attributed grammars. Get Coco/Rb([2]).
YAML 0.44
"why the lucky stiff" has released a new version of YAML for
Ruby. YAML([3]) is a text format for storing objects in a human
readable fasion. Get YAML for Ruby([4]).
RDE 0.9.8.0
Sakazuki has released a new version of RDE. RDE is a Ruby
development environment for the Windows platform. Get RDE([5]).
INTERESTING THREADS
Default Hash Behaviour
Ever been confused about the default behaviour of Hash. Some
discussion on nice ways to provide default behaviour for Hash
in this thread, check it out. Solutions apply to both 1.6 and
1.7.
Polymorphism, isomorphism
The idea was put forward if it would be useful to be able to
ask an object if it implements a list of methods. This way you
could ask a class if it implements some sort of interface that
you are expecting.
Sorting an Array of Hashes
How to sort an Array of Hashes? Several solutions came forward
for both 1.6 and 1.7. Start here if you have this need and are
stumped.
References