[Pharo-project] Pharo and Astronomy?

Sean P. DeNigris sean at clipperadams.com
Fri Nov 5 20:39:25 CET 2010

To use Ruby's Mechanize gem, I just wrote a small Ruby script that allows
messages to be sent to Ruby objects.  It runs an augmented XMLRPC server
that caches non-XMLRPC Ruby objects and passes back an identifier to

Here's a snippet of my post to squeak-dev.  All of the messages return
proxies to Ruby objects, except the last, which returns an array of strings. 
Check the "Wrapping Ruby libraries - what is the best way?" thread for more
...run the following code in Squeak: 
agent := Mechanize new. 
loginPage := agent get: 'https://www.[a site here].com/home'. 
loginForm := loginPage formWith: #action -> '/login'. 
loginForm set: 'username' fieldTo: 'username'. 
loginForm set: 'password' fieldTo: 'password'. 
homePage := loginForm submit. 
mailPage := agent get: 'https://www.[a site here].com/messages'. 
messageLinks := mailPage linksWith: #href ->
messages := messageLinks collect: [ :link | link click body ]. 

All of those messages were handled by the generic server code on the Ruby
side except for mailPage linksWith:, which passes a Ruby regex, which is not
supported by XMLRPC.

* still deciding how much info to bring over to Squeak and when e.g. just
the id, the inst vars, etc. 
* extending XMLRPC to handle Squeak/Ruby common types, like symbols 
* toying with the idea of using DNU to dynamically create the methods on the
ST side (hand-written for now) 
* thinking about whether to look at OMeta or PetitParser


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