* src/LR0.c (set_state_table): Let all the states have a
`reductions', even if reduced to 0.
(save_reductions): Adjust.
* src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
* src/print.c (print_reductions, print_actions): Adjust.
* src/output.c (action_row): Adjust.
* src/LR0.c (set_state_table): Let all the states have an errs,
even if reduced to 0.
* src/print.c (print_errs, print_reductions): Adjust.
* src/output.c (output_actions, action_row): Adjust.
* src/conflicts.c (resolve_sr_conflict): Adjust.
nlookaheads is a new member.
Adjust all users.
* src/lalr.h (nlookaheads): Remove this orphan declaration.
* src/lalr.c (initialize_lookaheads): Set nlookaheads for each
state.
shifts is useless: just fill directly the state's shifts member.
* src/state.h (shifts): Remove the `next' member.
* src/LR0.c (first_state, last_state): Remove.
Adjust the callers.
(augment_automaton): Don't look for the shifts that must be added
a shift on EOF: it is those of the state we looked for! But now,
since shifts are attached, it is no longer needed to looking
merely by its id: its number.
reductions is useless: just fill directly the state's reductions
member.
* src/state.h (struct reductions): Remove member `number' and
`next'.
* src/LR0.c (first_reduction, last_reduction): Remove.
(save_reductions): Don't link the new reductions, store them in
this_state.
* src/lalr.c (set_state_table): No need to attach reductions to
states, it's already done.
* src/output.c (output_actions): No longer free the shifts, then
the reductions, then the states: free all the states and their
members.
there are LR(0) states and LALR(1) states.
* src/lalr.h (state_t): Remove.
(state_table): Be state_t **, not state_t *.
* src/state.h (core, CORE_ALLOC): Rename as...
(state_t, STATE_ALLOC): this.
Add the LALR(1) members: shifts, reductions, errs.
* src/LR0.c (state_table): Rename as...
(state_hash): this, to avoid name clashes with the global
`state_table'.
* src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
* src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
have a valid SHIFTS, which NSHIFTS is possibly 0.
* src/LR0.c (shifts_new): Be global and move to..
* src/state.c, src/state.h: here.
* src/conflicts, src/lalr.c, src/output.c, src/print.c,
* src/print_graph: Adjust.
(first_reduction): Move their exportation from here...
* src/LR0.h: to here.
Adjust dependencies.
* src/getargs.c (statisticsflag): New variable.
Add support for `--statistics'.
Adjust dependencies.
Remove a lot of now useless `extern' statements in most files.
