Man-default-man-entry's current-word frail

[Dan Jacobson]

/usr/share/emacs/21.4/lisp/
  -rw-r--r--  1 root 43772 2002-10-19 09:21 man.el
Man-default-man-entry has problems:
(current-word) will be different depending on which kind of buffer we
are in.

My idea of potential man page names includes embedded periods, and
excludes pipes.

How could a pipe symbol be part of a man page name?

Embedded periods will sometimes split words depending on the mode we
are in.

There should be a refinement of the scope of potential man page names,
and indeed, there should be a variable to put this regexp into the
hands of the user if the default is unworthy.

And there should be shielding so current-word isn't affected by the
current mode. Perhaps turn on Man mode while the function is running.