use algorithmatic.com's in-browser integrated-development-environment here. The IDE offers syntax-highlighting, realtime validation, syntax-autocompletion, autocompletion for external-calls, interpreter and basic debugging.
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Pretty cool. Though the function name must be "Execute" to enable external calls.
See http://www.algorithmatic.com/wiki/display/algorithmatic-reference-manual#heading_0
And http://www.algorithmatic.com/wiki/display/algorithmatic-object
See http://www.algorithmatic.com/wiki/display/algorithmatic-reference-manual#heading_0
And http://www.algorithmatic.com/wiki/display/algorithmatic-object
Thanks for the great submission!