[comp.emacs] gnuemacs version 18.40, function blink-matching-open

mab@faline.UUCP (03/19/87)

This function is suppossed to show the beginning of the sexp
before point, and all I've ever gotten it to do is to print
Mismatched parentheses.
Any idea what's wrong?  I looked in lisp/simple.el and figured
that the test for mismatching was complicated enough that I'd
ask first, think later!