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graphs: change the output format of the rules

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Use something similar to the report file.

* src/print_graph.c (print_lhs): New, obstack equivalent of rule_lhs_print.
(print_core): Use here.

Signed-off-by: Akim Demaille <akim@lrde.epita.fr>
This commit is contained in:
Theophile Ranquet
2012-10-18 15:38:31 +00:00
committed by Akim Demaille
parent 8048226f50
commit ce6cf10f73
1 changed files with 25 additions and 2 deletions
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27
src/print_graph.c
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@@ -40,11 +40,32 @@
| Construct the node labels. |
`----------------------------*/
/* Print the lhs of a rule in such a manner that there is no vertical
repetition, like in *.output files. */
static void
print_lhs (struct obstack *oout, rule *previous_rule, rule *r)
{
if (previous_rule && STREQ (previous_rule->lhs->tag, r->lhs->tag))
{
int i;
for (i = 0; i < strlen (r->lhs->tag); ++i)
obstack_1grow (oout, ' ');
obstack_1grow (oout, '|');
}
else
{
obstack_sgrow (oout, escape (r->lhs->tag));
obstack_1grow (oout, ':');
}
}
static void
print_core (struct obstack *oout, state *s)
{
size_t i;
item_number *sitems = s->items;
rule *previous_rule = NULL;
size_t i;
size_t snritems = s->nitems;
/* Output all the items of a state, not only its kernel. */
@@ -70,7 +91,9 @@ print_core (struct obstack *oout, state *s)
r = item_number_as_rule_number (*sp);
obstack_printf (oout, "%d: %s ->", r, escape (rules[r].lhs->tag));
obstack_printf (oout, "%3d ", r);
print_lhs (oout, previous_rule, &rules[r]);
previous_rule = &rules[r];
for (sp = rules[r].rhs; sp < sp1; sp++)
obstack_printf (oout, " %s", escape (symbols[*sp]->tag));