Saturday, August 14, 2010

Sharing code in Leo scripts, part deux

For years I have wanted Leo scripts to be able to share code directly. Now they can--simply, intuitively, dynamically, in a Leonine way.

exec(g.findTestScript(c,h)) is a big breakthrough in Leo scripting; the previous post buried the lead.

To recap, suppose a set of related @test nodes (or any other set of Leo scripts) want to share class definitions in a node whose headline is 'x'. To get these definitions, each node just starts with::


After this one line, the script can use all the class names defined in x without qualification. Furthermore, if I change the definitions in x, these changes immediately become available to all the scripts that use them.

This one-liner is a big step forward in Leonine programming.

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