Per a suggestion by Christian Robert, edif and edif2 now support
creating and editing named lambdas. (Though, to be honest, the usual
way of creating a named lambda, fubar←{whatever}, is easier--I just
included the "create" capability for completeness. The only real value
of lambda mode is editing existing lambdas.)
Lambda-editing mode differs from normal function-editing mode in that no
header is shown in lambda mode (APL creates the header based on the
alpha (⍺) and omega (⍵) variables in the expression). Lambdas also have
an implicit λ← assignment; that assignment is not shown in the editor.
So, for example, if you create a lambda like
fubar←{3×⍳⍵}
and then edit it with edif:
edif 'fubar'
what you'll see is an editor screen containing just
3×⍳⍵
The for-completeness lambda-creation mode can be had by abusing the axis
argument:
edif [1] 'fubar'
Further (not that many people will care),
edif [2] ''
will show the edif version:
APL editor native function 2.2.0
and
edif [3] ''
will show git version information
08f5d28 2020-07-16 19:52:19 -0400
https://github.com/ChrisMoller/edif
Have fun,
cm
