Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-20 17:53:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

One structure for states is enough, even though theoretically

Browse Source 
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.
This commit is contained in:
Akim Demaille
2001-12-10 08:45:22 +00:00
parent 74ffbcb6bf
commit f693ad146e
10 changed files with 149 additions and 141 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
src/lalr.h
View File

@@ -69,30 +69,8 @@ extern unsigned *LA;
#define LA(Rule) (LA + (Rule) * tokensetsize)
/* A structure decorating a state, with additional information. */
typedef struct state_s
{
/* A state. */
core *state;
/* Its accessing symbol. */
short accessing_symbol;
shifts *shifts;
reductions *reductions;
errs *errs;
/* Nonzero if no lookahead is needed to decide what to do in state
S. */
char consistent;
short lookaheads;
} state_t;
/* All the decorated states, indexed by the state number. Warning:
there is a state_TABLE in LR0.c, but it is different and static.
*/
extern state_t *state_table;
/* All the states, indexed by the state number. */
extern state_t **state_table;
extern int tokensetsize;