[cvs-nhc98] patch applied (hat): Improvements to hat-explore.

Thu Feb 7 09:27:09 PST 2002 malcolm * Improvements to hat-explore. * Use a different low-level interface which gives correct parent information for identifiers, constructors, and literals. * In the state, store a stack of sub-expression contexts, not just expressions. Thus, when you go backwards up the display, the cursor returns to the previously selected subexpression, not the whole line. A ./src/hattools/LowLevel.hs M ./src/hattools/Makefile -3 +3 M ./src/hattools/SExp.hs -147 +143 M ./src/hattools/utils.c -25 +493 M ./src/hattools/utils.h -1 +2