fabulator¶ ↑

• github.com/jgsmith/ruby-fabulator

The fabulator library provides a state machine implementation of a core set of semantics for building data-driven applications using a simple XML language coupled with an XQuery-like expression language.

• XML compilation into Ruby objects

• XQuery-like expression language for accessing data

• Easily extensible with XML actions and expression functions

require 'fabulator'

parser = Fabulator::Expr::Parser.new
context = Fabulator::Expr::Context.new

context.set_value( '/a', 'some_values' )
expr = parser.parse( 'f:sum(/a[. > 0]' )
result = expr.run( context )

puts "sum: #{ result.value }"

The expression engine does not depend on any external libraries. The XML framework depends on the Ruby libxml and libxslt libraries at <libxml.rubyforge.org/>. It also needs the RedCloth and radius gems for the template engine.

• sudo gem install fabulator

Copyright © 2009-2010 Texas A&M University

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