[cvs-nhc98] patch applied (hat): Haskell version of tool " hat-detect" added. Tool provides entire

[Malcolm Wallace]

Tue Aug 28 07:59:14 PDT 2001  thorsten
  * Haskell version of tool "hat-detect" added. Tool provides entire
  functionality of earlier C-tool, plus some enhancements:
   - starting "hat-trail" and "hat-observe" from "hat-detect" is possible.
   - better behaviour when going back to an earlier question. Memoisation
     memory is not entirely cleared as in C, but restored to original state
     at the earlier question.
  (hat-detect.c now obsolete)
  
  Haskell interface to C libraries was cleaned and structured.
  Internal representation of "HatNode" now entirely hidden to the world
  outside the interface.

    A ./src/hattools/HatDetect.hs
    M ./src/hattools/HatExpression.hs -36 +41
    M ./src/hattools/HatObserve.hs -32 +51
    M ./src/hattools/HatTrace.gc -141 +429
    M ./src/hattools/HatTrie.hs -2 +2
    A ./src/hattools/Hatdetect.hs
    M ./src/hattools/Hatobserve.hs -32 +51
    M ./src/hattools/Makefile -8 +22
    M ./src/hattools/detect.c -28 +116
    M ./src/hattools/detect.h -2 +1
    M ./src/hattools/hat-detect.c -20 +7