[rules-users] New DSL question...Interpreting constants...

[Matt Geis]

Hi Macon,
You can make some highly flexible DSL's by using regular expressions and DSL entry chaining.

See the following for an example:  http://blog.athico.com/2008/06/allowing-variable-masks-in-dsl-grammar.html

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So the above rules could be partially rewritten as:

rule "Monetary 1"
      when
            Currency is one of DOLLAR, EURO, YEN 
      then
          insert(new Fact());
end