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why does this (test_llk) segfault!? driver goes into a loop.

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This commit is contained in:
Sven M. Hallberg 2013-05-24 04:33:27 +02:00
parent c6d3bc7fd5
commit bd9f9293c1
1 changed files with 10 additions and 5 deletions
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15
src/backends/llk.c
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@ -198,9 +198,14 @@ static int fill_table_row(size_t kmax, HCFGrammar *g, HCFStringMap *row,
h_pprint_symbol(stdout, g, A); h_pprint_symbol(stdout, g, A);
printf(") = "); printf(") = ");
h_pprint_stringset(stdout, row, 0); h_pprint_stringset(stdout, row, 0);
if(h_stringmap_get(row, (uint8_t *)"a", 1, false)) {
printf(" a -> ");
h_pprint_sequence(stdout, g, h_stringmap_get(row, (uint8_t *)"a", 1, false));
printf("\n");
}
// switch to the updated workset // switch to the updated workset
h_hashtable_free(workset); h_hashset_free(workset);
workset = nextset; workset = nextset;
// if the workset is empty, row is without conflict; we're done // if the workset is empty, row is without conflict; we're done
@ -452,9 +457,9 @@ int test_llk(void)
*/ */
HParser *X = h_optional(h_ch('x')); HParser *X = h_optional(h_ch('x'));
HParser *Y = h_sequence(h_ch('y'), NULL); //HParser *Y = h_epsilon_p(); //h_sequence(h_ch('y'), NULL);
HParser *A = h_sequence(X, Y, h_ch('a'), NULL); HParser *A = h_sequence(X, h_ch('a'), NULL);
HParser *B = h_sequence(Y, h_ch('b'), NULL); HParser *B = h_sequence(h_ch('b'), NULL);
HParser *p = h_choice(A, B, NULL); HParser *p = h_choice(A, B, NULL);
HCFGrammar *g = h_cfgrammar(&system_allocator, p); HCFGrammar *g = h_cfgrammar(&system_allocator, p);
@ -477,7 +482,7 @@ int test_llk(void)
return 2; return 2;
} }
HParseResult *res = h_parse(p, (uint8_t *)"xa", 2); HParseResult *res = h_parse(p, (uint8_t *)"ab", 2);
if(res) if(res)
h_pprint(stdout, res->ast, 0, 2); h_pprint(stdout, res->ast, 0, 2);
else else