зеркало из https://github.com/mozilla/gecko-dev.git
553 строки
11 KiB
C
553 строки
11 KiB
C
char rcsid_table[] = "$Id: table.c,v 1.1 1998/12/17 06:36:49 fur%netscape.com Exp $";
|
|
|
|
#include "b.h"
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
static void growIndex_Map ARGS((Index_Map *));
|
|
static Relevant newRelevant ARGS((void));
|
|
static Dimension newDimension ARGS((Operator, int));
|
|
static void GT_1 ARGS((Table));
|
|
static void GT_2_0 ARGS((Table));
|
|
static void GT_2_1 ARGS((Table));
|
|
static void growTransition ARGS((Table, int));
|
|
static Item_Set restrict ARGS((Dimension, Item_Set));
|
|
static void addHP_1 ARGS((Table, Item_Set));
|
|
static void addHP_2_0 ARGS((Table, Item_Set));
|
|
static void addHP_2_1 ARGS((Table, Item_Set));
|
|
static void addHyperPlane ARGS((Table, int, Item_Set));
|
|
|
|
static void
|
|
growIndex_Map(r) Index_Map *r;
|
|
{
|
|
Index_Map new;
|
|
|
|
new.max_size = r->max_size + STATES_INCR;
|
|
new.class = (Item_Set*) zalloc(new.max_size * sizeof(Item_Set));
|
|
assert(new.class);
|
|
memcpy(new.class, r->class, r->max_size * sizeof(Item_Set));
|
|
zfree(r->class);
|
|
*r = new;
|
|
}
|
|
|
|
static Relevant
|
|
newRelevant()
|
|
{
|
|
Relevant r = (Relevant) zalloc(max_nonterminal * sizeof(*r));
|
|
return r;
|
|
}
|
|
|
|
void
|
|
addRelevant(r, nt) Relevant r; NonTerminalNum nt;
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; r[i]; i++) {
|
|
if (r[i] == nt) {
|
|
break;
|
|
}
|
|
}
|
|
if (!r[i]) {
|
|
r[i] = nt;
|
|
}
|
|
}
|
|
|
|
static Dimension
|
|
newDimension(op, index) Operator op; ArityNum index;
|
|
{
|
|
Dimension d;
|
|
List pl;
|
|
Relevant r;
|
|
|
|
assert(op);
|
|
assert(index >= 0 && index < op->arity);
|
|
d = (Dimension) zalloc(sizeof(struct dimension));
|
|
assert(d);
|
|
|
|
r = d->relevant = newRelevant();
|
|
for (pl = rules; pl; pl = pl->next) {
|
|
Rule pr = (Rule) pl->x;
|
|
if (pr->pat->op == op) {
|
|
addRelevant(r, pr->pat->children[index]->num);
|
|
}
|
|
}
|
|
|
|
d->index_map.max_size = STATES_INCR;
|
|
d->index_map.class = (Item_Set*)
|
|
zalloc(d->index_map.max_size * sizeof(Item_Set));
|
|
d->map = newMapping(DIM_MAP_SIZE);
|
|
d->max_size = TABLE_INCR;
|
|
|
|
return d;
|
|
}
|
|
|
|
Table
|
|
newTable(op) Operator op;
|
|
{
|
|
Table t;
|
|
int i, size;
|
|
|
|
assert(op);
|
|
|
|
t = (Table) zalloc(sizeof(struct table));
|
|
assert(t);
|
|
|
|
t->op = op;
|
|
|
|
for (i = 0; i < op->arity; i++) {
|
|
t->dimen[i] = newDimension(op, i);
|
|
}
|
|
|
|
size = 1;
|
|
for (i = 0; i < op->arity; i++) {
|
|
size *= t->dimen[i]->max_size;
|
|
}
|
|
t->transition = (Item_Set*) zalloc(size * sizeof(Item_Set));
|
|
t->relevant = newRelevant();
|
|
assert(t->transition);
|
|
|
|
return t;
|
|
}
|
|
|
|
static void
|
|
GT_1(t) Table t;
|
|
{
|
|
Item_Set *ts;
|
|
ItemSetNum oldsize = t->dimen[0]->max_size;
|
|
ItemSetNum newsize = t->dimen[0]->max_size + TABLE_INCR;
|
|
|
|
t->dimen[0]->max_size = newsize;
|
|
|
|
ts = (Item_Set*) zalloc(newsize * sizeof(Item_Set));
|
|
assert(ts);
|
|
memcpy(ts, t->transition, oldsize * sizeof(Item_Set));
|
|
zfree(t->transition);
|
|
t->transition = ts;
|
|
}
|
|
|
|
static void
|
|
GT_2_0(t) Table t;
|
|
{
|
|
Item_Set *ts;
|
|
ItemSetNum oldsize = t->dimen[0]->max_size;
|
|
ItemSetNum newsize = t->dimen[0]->max_size + TABLE_INCR;
|
|
int size;
|
|
|
|
t->dimen[0]->max_size = newsize;
|
|
|
|
size = newsize * t->dimen[1]->max_size;
|
|
|
|
ts = (Item_Set*) zalloc(size * sizeof(Item_Set));
|
|
assert(ts);
|
|
memcpy(ts, t->transition, oldsize*t->dimen[1]->max_size * sizeof(Item_Set));
|
|
zfree(t->transition);
|
|
t->transition = ts;
|
|
}
|
|
|
|
static void
|
|
GT_2_1(t) Table t;
|
|
{
|
|
Item_Set *ts;
|
|
ItemSetNum oldsize = t->dimen[1]->max_size;
|
|
ItemSetNum newsize = t->dimen[1]->max_size + TABLE_INCR;
|
|
int size;
|
|
Item_Set *from;
|
|
Item_Set *to;
|
|
int i1, i2;
|
|
|
|
t->dimen[1]->max_size = newsize;
|
|
|
|
size = newsize * t->dimen[0]->max_size;
|
|
|
|
ts = (Item_Set*) zalloc(size * sizeof(Item_Set));
|
|
assert(ts);
|
|
|
|
from = t->transition;
|
|
to = ts;
|
|
for (i1 = 0; i1 < t->dimen[0]->max_size; i1++) {
|
|
for (i2 = 0; i2 < oldsize; i2++) {
|
|
to[i2] = from[i2];
|
|
}
|
|
to += newsize;
|
|
from += oldsize;
|
|
}
|
|
zfree(t->transition);
|
|
t->transition = ts;
|
|
}
|
|
|
|
static void
|
|
growTransition(t, dim) Table t; ArityNum dim;
|
|
{
|
|
|
|
assert(t);
|
|
assert(t->op);
|
|
assert(dim < t->op->arity);
|
|
|
|
switch (t->op->arity) {
|
|
default:
|
|
assert(0);
|
|
break;
|
|
case 1:
|
|
GT_1(t);
|
|
return;
|
|
case 2:
|
|
switch (dim) {
|
|
default:
|
|
assert(0);
|
|
break;
|
|
case 0:
|
|
GT_2_0(t);
|
|
return;
|
|
case 1:
|
|
GT_2_1(t);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static Item_Set
|
|
restrict(d, ts) Dimension d; Item_Set ts;
|
|
{
|
|
DeltaCost base;
|
|
Item_Set r;
|
|
int found;
|
|
register Relevant r_ptr = d->relevant;
|
|
register Item *ts_current = ts->closed;
|
|
register Item *r_current;
|
|
register int i;
|
|
register int nt;
|
|
|
|
ZEROCOST(base);
|
|
found = 0;
|
|
r = newItem_Set(d->relevant);
|
|
r_current = r->virgin;
|
|
for (i = 0; (nt = r_ptr[i]) != 0; i++) {
|
|
if (ts_current[nt].rule) {
|
|
r_current[nt].rule = &stub_rule;
|
|
if (!found) {
|
|
found = 1;
|
|
ASSIGNCOST(base, ts_current[nt].delta);
|
|
} else {
|
|
if (LESSCOST(ts_current[nt].delta, base)) {
|
|
ASSIGNCOST(base, ts_current[nt].delta);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* zero align */
|
|
for (i = 0; (nt = r_ptr[i]) != 0; i++) {
|
|
if (r_current[nt].rule) {
|
|
ASSIGNCOST(r_current[nt].delta, ts_current[nt].delta);
|
|
MINUSCOST(r_current[nt].delta, base);
|
|
}
|
|
}
|
|
assert(!r->closed);
|
|
r->representative = ts;
|
|
return r;
|
|
}
|
|
|
|
static void
|
|
addHP_1(t, ts) Table t; Item_Set ts;
|
|
{
|
|
List pl;
|
|
Item_Set e;
|
|
Item_Set tmp;
|
|
int new;
|
|
|
|
e = newItem_Set(t->relevant);
|
|
assert(e);
|
|
e->kids[0] = ts->representative;
|
|
for (pl = t->rules; pl; pl = pl->next) {
|
|
Rule p = (Rule) pl->x;
|
|
if (t->op == p->pat->op && ts->virgin[p->pat->children[0]->num].rule) {
|
|
DeltaCost dc;
|
|
ASSIGNCOST(dc, ts->virgin[p->pat->children[0]->num].delta);
|
|
ADDCOST(dc, p->delta);
|
|
if (!e->virgin[p->lhs->num].rule || LESSCOST(dc, e->virgin[p->lhs->num].delta)) {
|
|
e->virgin[p->lhs->num].rule = p;
|
|
ASSIGNCOST(e->virgin[p->lhs->num].delta, dc);
|
|
e->op = t->op;
|
|
}
|
|
}
|
|
}
|
|
trim(e);
|
|
zero(e);
|
|
tmp = encode(globalMap, e, &new);
|
|
assert(ts->num < t->dimen[0]->map->max_size);
|
|
t->transition[ts->num] = tmp;
|
|
if (new) {
|
|
closure(e);
|
|
addQ(globalQ, tmp);
|
|
} else {
|
|
freeItem_Set(e);
|
|
}
|
|
}
|
|
|
|
static void
|
|
addHP_2_0(t, ts) Table t; Item_Set ts;
|
|
{
|
|
List pl;
|
|
register Item_Set e;
|
|
Item_Set tmp;
|
|
int new;
|
|
int i2;
|
|
|
|
assert(t->dimen[1]->map->count <= t->dimen[1]->map->max_size);
|
|
for (i2 = 0; i2 < t->dimen[1]->map->count; i2++) {
|
|
e = newItem_Set(t->relevant);
|
|
assert(e);
|
|
e->kids[0] = ts->representative;
|
|
e->kids[1] = t->dimen[1]->map->set[i2]->representative;
|
|
for (pl = t->rules; pl; pl = pl->next) {
|
|
register Rule p = (Rule) pl->x;
|
|
|
|
if (t->op == p->pat->op
|
|
&& ts->virgin[p->pat->children[0]->num].rule
|
|
&& t->dimen[1]->map->set[i2]->virgin[p->pat->children[1]->num].rule){
|
|
DeltaCost dc;
|
|
ASSIGNCOST(dc, p->delta);
|
|
ADDCOST(dc, ts->virgin[p->pat->children[0]->num].delta);
|
|
ADDCOST(dc, t->dimen[1]->map->set[i2]->virgin[p->pat->children[1]->num].delta);
|
|
|
|
if (!e->virgin[p->lhs->num].rule || LESSCOST(dc, e->virgin[p->lhs->num].delta)) {
|
|
e->virgin[p->lhs->num].rule = p;
|
|
ASSIGNCOST(e->virgin[p->lhs->num].delta, dc);
|
|
e->op = t->op;
|
|
}
|
|
}
|
|
}
|
|
trim(e);
|
|
zero(e);
|
|
tmp = encode(globalMap, e, &new);
|
|
assert(ts->num < t->dimen[0]->map->max_size);
|
|
t->transition[ts->num * t->dimen[1]->max_size + i2] = tmp;
|
|
if (new) {
|
|
closure(e);
|
|
addQ(globalQ, tmp);
|
|
} else {
|
|
freeItem_Set(e);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
addHP_2_1(t, ts) Table t; Item_Set ts;
|
|
{
|
|
List pl;
|
|
register Item_Set e;
|
|
Item_Set tmp;
|
|
int new;
|
|
int i1;
|
|
|
|
assert(t->dimen[0]->map->count <= t->dimen[0]->map->max_size);
|
|
for (i1 = 0; i1 < t->dimen[0]->map->count; i1++) {
|
|
e = newItem_Set(t->relevant);
|
|
assert(e);
|
|
e->kids[0] = t->dimen[0]->map->set[i1]->representative;
|
|
e->kids[1] = ts->representative;
|
|
for (pl = t->rules; pl; pl = pl->next) {
|
|
register Rule p = (Rule) pl->x;
|
|
|
|
if (t->op == p->pat->op
|
|
&& ts->virgin[p->pat->children[1]->num].rule
|
|
&& t->dimen[0]->map->set[i1]->virgin[p->pat->children[0]->num].rule){
|
|
DeltaCost dc;
|
|
ASSIGNCOST(dc, p->delta );
|
|
ADDCOST(dc, ts->virgin[p->pat->children[1]->num].delta);
|
|
ADDCOST(dc, t->dimen[0]->map->set[i1]->virgin[p->pat->children[0]->num].delta);
|
|
if (!e->virgin[p->lhs->num].rule || LESSCOST(dc, e->virgin[p->lhs->num].delta)) {
|
|
e->virgin[p->lhs->num].rule = p;
|
|
ASSIGNCOST(e->virgin[p->lhs->num].delta, dc);
|
|
e->op = t->op;
|
|
}
|
|
}
|
|
}
|
|
trim(e);
|
|
zero(e);
|
|
tmp = encode(globalMap, e, &new);
|
|
assert(ts->num < t->dimen[1]->map->max_size);
|
|
t->transition[i1 * t->dimen[1]->max_size + ts->num] = tmp;
|
|
if (new) {
|
|
closure(e);
|
|
addQ(globalQ, tmp);
|
|
} else {
|
|
freeItem_Set(e);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
addHyperPlane(t, i, ts) Table t; ArityNum i; Item_Set ts;
|
|
{
|
|
switch (t->op->arity) {
|
|
default:
|
|
assert(0);
|
|
break;
|
|
case 1:
|
|
addHP_1(t, ts);
|
|
return;
|
|
case 2:
|
|
switch (i) {
|
|
default:
|
|
assert(0);
|
|
break;
|
|
case 0:
|
|
addHP_2_0(t, ts);
|
|
return;
|
|
case 1:
|
|
addHP_2_1(t, ts);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
addToTable(t, ts) Table t; Item_Set ts;
|
|
{
|
|
ArityNum i;
|
|
|
|
assert(t);
|
|
assert(ts);
|
|
assert(t->op);
|
|
|
|
for (i = 0; i < t->op->arity; i++) {
|
|
Item_Set r;
|
|
Item_Set tmp;
|
|
int new;
|
|
|
|
r = restrict(t->dimen[i], ts);
|
|
tmp = encode(t->dimen[i]->map, r, &new);
|
|
if (t->dimen[i]->index_map.max_size <= ts->num) {
|
|
growIndex_Map(&t->dimen[i]->index_map);
|
|
}
|
|
assert(ts->num < t->dimen[i]->index_map.max_size);
|
|
t->dimen[i]->index_map.class[ts->num] = tmp;
|
|
if (new) {
|
|
if (t->dimen[i]->max_size <= r->num) {
|
|
growTransition(t, i);
|
|
}
|
|
addHyperPlane(t, i, r);
|
|
} else {
|
|
freeItem_Set(r);
|
|
}
|
|
}
|
|
}
|
|
|
|
Item_Set *
|
|
transLval(t, row, col) Table t; int row; int col;
|
|
{
|
|
switch (t->op->arity) {
|
|
case 0:
|
|
assert(row == 0);
|
|
assert(col == 0);
|
|
return t->transition;
|
|
case 1:
|
|
assert(col == 0);
|
|
return t->transition + row;
|
|
case 2:
|
|
return t->transition + row * t->dimen[1]->max_size + col;
|
|
default:
|
|
assert(0);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
dumpRelevant(r) Relevant r;
|
|
{
|
|
for (; *r; r++) {
|
|
printf("%4d", *r);
|
|
}
|
|
}
|
|
|
|
void
|
|
dumpIndex_Map(r) Index_Map *r;
|
|
{
|
|
int i;
|
|
|
|
printf("BEGIN Index_Map: MaxSize (%d)\n", r->max_size);
|
|
for (i = 0; i < globalMap->count; i++) {
|
|
printf("\t#%d: -> %d\n", i, r->class[i]->num);
|
|
}
|
|
printf("END Index_Map:\n");
|
|
}
|
|
|
|
void
|
|
dumpDimension(d) Dimension d;
|
|
{
|
|
printf("BEGIN Dimension:\n");
|
|
printf("Relevant: ");
|
|
dumpRelevant(d->relevant);
|
|
printf("\n");
|
|
dumpIndex_Map(&d->index_map);
|
|
dumpMapping(d->map);
|
|
printf("MaxSize of dimension = %d\n", d->max_size);
|
|
printf("END Dimension\n");
|
|
}
|
|
|
|
void
|
|
dumpTable(t, full) Table t; int full;
|
|
{
|
|
int i;
|
|
|
|
if (!t) {
|
|
printf("NO Table yet.\n");
|
|
return;
|
|
}
|
|
printf("BEGIN Table:\n");
|
|
if (full) {
|
|
dumpOperator(t->op, 0);
|
|
}
|
|
for (i = 0; i < t->op->arity; i++) {
|
|
printf("BEGIN dimension(%d)\n", i);
|
|
dumpDimension(t->dimen[i]);
|
|
printf("END dimension(%d)\n", i);
|
|
}
|
|
dumpTransition(t);
|
|
printf("END Table:\n");
|
|
}
|
|
|
|
void
|
|
dumpTransition(t) Table t;
|
|
{
|
|
int i,j;
|
|
|
|
switch (t->op->arity) {
|
|
case 0:
|
|
printf("{ %d }", t->transition[0]->num);
|
|
break;
|
|
case 1:
|
|
printf("{");
|
|
for (i = 0; i < t->dimen[0]->map->count; i++) {
|
|
if (i > 0) {
|
|
printf(",");
|
|
}
|
|
printf("%5d", t->transition[i]->num);
|
|
}
|
|
printf("}");
|
|
break;
|
|
case 2:
|
|
printf("{");
|
|
for (i = 0; i < t->dimen[0]->map->count; i++) {
|
|
if (i > 0) {
|
|
printf(",");
|
|
}
|
|
printf("\n");
|
|
printf("{");
|
|
for (j = 0; j < t->dimen[1]->map->count; j++) {
|
|
Item_Set *ts = transLval(t, i, j);
|
|
if (j > 0) {
|
|
printf(",");
|
|
}
|
|
printf("%5d", (*ts)->num);
|
|
}
|
|
printf("}");
|
|
}
|
|
printf("\n}\n");
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|