[cvs-nhc98] patch applied (hat): Solve the problem that _ did not expand in verbose mode, and _|_ and

[Malcolm Wallace]

Thu May  2 03:08:19 PDT 2002  malcolm
  * Solve the problem that _ did not expand in verbose mode, and _|_ and
  ^C had no parent.  Basically, we followed the result chain pointer
  too far.  Now, the getResult() routine stops at the last expression
  before the _, ^C, or _|_, and the pretty-printer must take a quick look
  (peekResult()) down one link of the chain to decide how to display
  the expression.

    M ./src/hattools/HatObserve.hs -2 +2
    M ./src/hattools/HatTrail.hs -20 +34
    M ./src/hattools/LowLevel.hs +6
    M ./src/hattools/SExp.hs -25 +30
    M ./src/hattools/artutils.c -6 +85
    M ./src/hattools/artutils.h +1