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bugfix in the statistical parser

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kr.angelov
2012-11-13 09:48:23 +00:00
parent d1044b202a
commit 468464faca
1 changed files with 12 additions and 6 deletions
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18
src/runtime/c/pgf/parser.c
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@@ -1534,7 +1534,7 @@ pgf_parsing_item(PgfParseState* before, PgfParseState* after, PgfItem* item)
}
}
static void
static bool
pgf_parsing_proceed(PgfParseState* state) {
prob_t best_prob = INFINITY;
PgfParseState* before = NULL;
@@ -1557,7 +1557,7 @@ pgf_parsing_proceed(PgfParseState* state) {
}
if (before == NULL)
return;
return false;
PgfParseState* after = NULL;
@@ -1580,6 +1580,8 @@ pgf_parsing_proceed(PgfParseState* state) {
after = tmp;
}
state = before;
return true;
}
static PgfParsing*
@@ -1673,8 +1675,10 @@ pgf_parser_next_state(PgfParseState* prev, PgfToken tok, GuPool* pool)
pgf_new_parse_state(prev->ps, prev, ts, pool);
state->ps->target = NULL;
while (state->ps->target == NULL)
pgf_parsing_proceed(state);
while (state->ps->target == NULL) {
if (!pgf_parsing_proceed(state))
break;
}
if (state->ps->target != NULL) {
return state;
}
@@ -1796,8 +1800,10 @@ pgf_parse_result_next(PgfParseResult* pr, GuPool* pool)
for (;;) {
if (pr->state->ps->completed == NULL) {
while (pr->state->ps->completed == NULL)
pgf_parsing_proceed(pr->state);
while (pr->state->ps->completed == NULL) {
if (!pgf_parsing_proceed(pr->state))
break;
}
if (pr->state->ps->completed == NULL)
return NULL;
pgf_result_cat_init(pr, NULL, 0, pr->state->ps->completed);