has-ancestor-member?
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Name

has-ancestor-member? — Returns true if the specified node has one of a set of GIs as an ancestor

Synopsis

(has-ancestor-member? nd gilist)

Description

Returns #t if nd has an ancestor whose GI is a member of gilist.

Author

Norman Walsh, <ndw@nwalsh.com>

Source Code

(define (has-ancestor-member? nd gilist)
  ;; Returns true if the specified node has one of a set of GIs as an ancestor
  (not (node-list-empty? (ancestor-member nd gilist))))

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Copyright © 1997 Norman Walsh