[Moose-dev] Re: [ANN] traversal-enabled objects with DeepTraverser

Hi Doru, I've been observing how the graph support in Moose has been developing. We in IBM Research have implemented a full Pharo implementation of the TinkerPop Blueprints property graph de-facto standard http://www.tinkerpop.com . I am also completing a Pharo-binding for the Gremlin graph traversal language that I call Glider (What you get when you cross a Gremlin and a Mouse). Its very compact and a bit weird syntactically, but its very powerful. Smells kinda like APL for graphs. If the community is interested, we could go through the IBM Open Source clearance process in the new year and see if we can contribute. Regards, Sam Sam S. Adams, CTO - Contextual Computing IBM Distinguished Engineer, IBM Research Mobile: 919-696-6064, email: ssadams(a)us.ibm.com Assistant: Linda R. Morrison. (720) 395-0460 Fax: (845) 491-4318, Tie: 676-0460, linda.r.morrison(a)us.ibm.com <<Hebrews 11:6, Proverbs 3:5-6, Romans 1:16-17, 1 Corinthians 1:10>> From: Tudor Girba &lt;tudor(a)tudorgirba.com&gt; To: moose-dev &lt;moose-dev(a)iam.unibe.ch&gt;ch>, Discusses Development of Pharo &lt;pharo-dev(a)lists.pharo.org&gt; Date: 12/11/2013 10:22 AM Subject: [Moose-dev] [ANN] traversal-enabled objects with DeepTraverser Sent by: moose-dev-bounces(a)iam.unibe.ch Hi, I put together a little implementation for traversals. It is inspired by an original implementation from Mariano. Using DeepTraverser, you can traverse arbitrary graphs by describing the traversal and by specifying the actions you want to perform on the nodes and relations. The code is available in the Moose image as part of the MooseAlgos subproject, but can also be loaded separately in a Pharo image via: Gofer new    url: 'http://www.smalltalkhub.com/mc/Moose/DeepTraverser/main';    package: ‘ConfigurationOfDeepTraverser’;    load. (Smalltalk globals at: #ConfigurationOfDeepTraverser) loadDevelopment. Just to give you an idea, here are some representative examples: Number     deep: #subclasses     do: [:each | Transcript show: each; cr]. Number deepCollect: #subclasses. Number     deep: #subclasses     collect: #name. Number     deep: #subclasses     do: [:each | Transcript show: each; cr]     relationDo: [ :from :to | Transcript show: from; show: ' <-- '; show: to; cr ]. More details about the usages and a little description of the implementation can be found  here: http://www.humane-assessment.com/blog/traversal-enabled-pharo-objects/ Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow" _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev