[Texmacs-dev] Environment at a tree

[Lionel Elie Mamane]

Hi,

Given t a value of type tree in TeXmacs's scheme environment, is there
an easy way to find the value what a certain TeXmacs variable has at
that point in the document? Roughly, what the tree (value "foo") would
be if placed at the place of t. I mean, suppose that the tree-type
value points at the tree (here) in the following document:

 (with "foo" "bar"
   (document
     "blah"
     (with "foo" "baz"
        (session
          (document
            (input "$" "Go! Go!")
            (input (concat "$" (here) "%") "Back! Back!")
            (output "No luck here."))))))

I would get "baz". An "easy" way means short of doing tree-up until
one encounters a (with "foo" . .) or (with . . "foo" . .) or
 (with . . . . "foo" . .)
where "." stands for any tree. An easy way includes a library routine
that would do just that.

-- 
Lionel