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global: remove unnecessary horizontal tabs.

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This change was made by applying emacs' untabify function to
nearly all files in Bison's repository.  Required tabs in make
files, ChangeLog, regexps, and test code were manually skipped.
Other notable exceptions and changes are listed below.
* bootstrap: Skip because we sync this with gnulib.
* data/m4sugar/foreach.m4
* data/m4sugar/m4sugar.m4: Skip because we sync these with
Autoconf.
* djgpp: Skip because I don't know how to test djgpp properly, and
this code appears to be unmaintained anyway.
* README-hacking (Hacking): Specify that tabs should be avoided
where not required.
This commit is contained in:
Joel E. Denny
2011-07-24 17:50:37 -04:00
parent c12aa01f82
commit e969014232
98 changed files with 5335 additions and 5312 deletions
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82
src/nullable.c
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@@ -48,7 +48,7 @@ nullable_print (FILE *out)
fputs ("NULLABLE\n", out);
for (i = ntokens; i < nsyms; i++)
fprintf (out, "\t%s: %s\n", symbols[i]->tag,
nullable[i - ntokens] ? "yes" : "no");
nullable[i - ntokens] ? "yes" : "no");
fputs ("\n\n", out);
}
@@ -77,52 +77,52 @@ nullable_compute (void)
for (ruleno = 0; ruleno < nrules; ++ruleno)
if (rules[ruleno].useful)
{
rule *rules_ruleno = &rules[ruleno];
if (rules_ruleno->rhs[0] >= 0)
{
/* This rule has a non empty RHS. */
item_number *rp = NULL;
bool any_tokens = false;
for (rp = rules_ruleno->rhs; *rp >= 0; ++rp)
if (ISTOKEN (*rp))
any_tokens = true;
rule *rules_ruleno = &rules[ruleno];
if (rules_ruleno->rhs[0] >= 0)
{
/* This rule has a non empty RHS. */
item_number *rp = NULL;
bool any_tokens = false;
for (rp = rules_ruleno->rhs; *rp >= 0; ++rp)
if (ISTOKEN (*rp))
any_tokens = true;
/* This rule has only nonterminals: schedule it for the second
pass. */
if (!any_tokens)
for (rp = rules_ruleno->rhs; *rp >= 0; ++rp)
{
rcount[ruleno]++;
p->next = rsets[*rp - ntokens];
p->value = rules_ruleno;
rsets[*rp - ntokens] = p;
p++;
}
}
else
{
/* This rule has an empty RHS. */
aver (item_number_as_rule_number (rules_ruleno->rhs[0])
== ruleno);
if (rules_ruleno->useful
&& ! nullable[rules_ruleno->lhs->number - ntokens])
{
nullable[rules_ruleno->lhs->number - ntokens] = true;
*s2++ = rules_ruleno->lhs->number;
}
}
/* This rule has only nonterminals: schedule it for the second
pass. */
if (!any_tokens)
for (rp = rules_ruleno->rhs; *rp >= 0; ++rp)
{
rcount[ruleno]++;
p->next = rsets[*rp - ntokens];
p->value = rules_ruleno;
rsets[*rp - ntokens] = p;
p++;
}
}
else
{
/* This rule has an empty RHS. */
aver (item_number_as_rule_number (rules_ruleno->rhs[0])
== ruleno);
if (rules_ruleno->useful
&& ! nullable[rules_ruleno->lhs->number - ntokens])
{
nullable[rules_ruleno->lhs->number - ntokens] = true;
*s2++ = rules_ruleno->lhs->number;
}
}
}
while (s1 < s2)
for (p = rsets[*s1++ - ntokens]; p; p = p->next)
{
rule *r = p->value;
if (--rcount[r->number] == 0)
if (r->useful && ! nullable[r->lhs->number - ntokens])
{
nullable[r->lhs->number - ntokens] = true;
*s2++ = r->lhs->number;
}
rule *r = p->value;
if (--rcount[r->number] == 0)
if (r->useful && ! nullable[r->lhs->number - ntokens])
{
nullable[r->lhs->number - ntokens] = true;
*s2++ = r->lhs->number;
}
}
free (squeue);