(* Demonstrates a bug with XEmacs 21.1: after procesing, between two terms, buffer-syntactic-context returns "string". But _before_ processing, it correctly returns "nil". Even when regions are removed, still get "string" returned after processing started. Bug doesn't occur in GNU Emacs (using imp of buffer-syntactic context provided in proof-compat.el), nor in XEmacs 21.4 Workaround added Fri Aug 10 13:55:28 BST 2001 *) theory XEmacsSyntacticContextProb imports Main begin term " (f x)" term "(f x)" end