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split out h_pprint_lr_info for debugging purposes

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This commit is contained in:
Sven M. Hallberg 2015-09-16 23:42:18 +02:00
parent 42d35fb883
commit ff55937e00
3 changed files with 40 additions and 29 deletions
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32
src/backends/lr.c
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@ -538,3 +538,35 @@ void h_pprint_lrtable(FILE *f, const HCFGrammar *g, const HLRTable *table,
fputc('\n', f);
#endif
}
HCFGrammar *h_pprint_lr_info(FILE *f, HParser *p)
{
HAllocator *mm__ = &system_allocator;
fprintf(f, "\n==== G R A M M A R ====\n");
HCFGrammar *g = h_cfgrammar_(mm__, h_desugar_augmented(mm__, p));
if (g == NULL) {
fprintf(f, "h_cfgrammar failed\n");
return NULL;
}
h_pprint_grammar(f, g, 0);
fprintf(f, "\n==== D F A ====\n");
HLRDFA *dfa = h_lr0_dfa(g);
if (dfa) {
h_pprint_lrdfa(f, g, dfa, 0);
} else {
fprintf(f, "h_lalr_dfa failed\n");
}
fprintf(f, "\n==== L R ( 0 ) T A B L E ====\n");
HLRTable *table0 = h_lr0_table(g, dfa);
if (table0) {
h_pprint_lrtable(f, g, table0, 0);
} else {
fprintf(f, "h_lr0_table failed\n");
}
h_lrtable_free(table0);
return g;
}