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global: remove unnecessary horizontal tabs.

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

120
src/reduce.c
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@@ -115,14 +115,14 @@ useless_nonterminals (void)
{
bitset_copy (Np, N);
for (r = 0; r < nrules; r++)
if (!bitset_test (P, r)
&& useful_production (r, N))
{
bitset_set (Np, rules[r].lhs->number - ntokens);
bitset_set (P, r);
}
if (!bitset_test (P, r)
&& useful_production (r, N))
{
bitset_set (Np, rules[r].lhs->number - ntokens);
bitset_set (P, r);
}
if (bitset_equal_p (N, Np))
break;
break;
Ns = Np;
Np = N;
N = Ns;
@@ -169,37 +169,37 @@ inaccessable_symbols (void)
bitset_set (V, accept->number);
while (1)
{
rule_number r;
bitset_copy (Vp, V);
for (r = 0; r < nrules; r++)
{
if (!bitset_test (Pp, r)
&& bitset_test (P, r)
&& bitset_test (V, rules[r].lhs->number))
{
item_number *rhsp;
for (rhsp = rules[r].rhs; *rhsp >= 0; rhsp++)
if (ISTOKEN (*rhsp) || bitset_test (N, *rhsp - ntokens))
bitset_set (Vp, *rhsp);
bitset_set (Pp, r);
}
}
if (bitset_equal_p (V, Vp))
break;
Vs = Vp;
Vp = V;
V = Vs;
}
{
rule_number r;
bitset_copy (Vp, V);
for (r = 0; r < nrules; r++)
{
if (!bitset_test (Pp, r)
&& bitset_test (P, r)
&& bitset_test (V, rules[r].lhs->number))
{
item_number *rhsp;
for (rhsp = rules[r].rhs; *rhsp >= 0; rhsp++)
if (ISTOKEN (*rhsp) || bitset_test (N, *rhsp - ntokens))
bitset_set (Vp, *rhsp);
bitset_set (Pp, r);
}
}
if (bitset_equal_p (V, Vp))
break;
Vs = Vp;
Vp = V;
V = Vs;
}
}
bitset_free (V);
V = Vp;
/* Tokens 0, 1, and 2 are internal to Bison. Consider them useful. */
bitset_set (V, endtoken->number); /* end-of-input token */
bitset_set (V, errtoken->number); /* error token */
bitset_set (V, undeftoken->number); /* some undefined token */
bitset_set (V, endtoken->number); /* end-of-input token */
bitset_set (V, errtoken->number); /* error token */
bitset_set (V, undeftoken->number); /* some undefined token */
bitset_free (P);
P = Pp;
@@ -212,7 +212,7 @@ inaccessable_symbols (void)
symbol_number i;
for (i = ntokens; i < nsyms; i++)
if (bitset_test (V, i))
nuseful_nonterminals++;
nuseful_nonterminals++;
}
nuseless_nonterminals = nvars - nuseful_nonterminals;
@@ -221,7 +221,7 @@ inaccessable_symbols (void)
rule_number r;
for (r = 0; r < nrules; ++r)
if (rules[r].precsym != 0)
bitset_set (V1, rules[r].precsym->number);
bitset_set (V1, rules[r].precsym->number);
}
}
@@ -257,11 +257,11 @@ reduce_grammar_tables (void)
/* Renumber the rules markers in RITEMS. */
for (r = 0; r < nrules; ++r)
{
item_number *rhsp = rules[r].rhs;
for (/* Nothing. */; *rhsp >= 0; ++rhsp)
/* Nothing. */;
*rhsp = rule_number_as_item_number (r);
rules[r].number = r;
item_number *rhsp = rules[r].rhs;
for (/* Nothing. */; *rhsp >= 0; ++rhsp)
/* Nothing. */;
*rhsp = rule_number_as_item_number (r);
rules[r].number = r;
}
nrules -= nuseless_productions;
}
@@ -272,8 +272,8 @@ reduce_grammar_tables (void)
int length;
for (r = nrules; r < nrules + nuseless_productions; ++r)
{
length = rule_rhs_length (&rules[r]);
nritems -= length + 1;
length = rule_rhs_length (&rules[r]);
nritems -= length + 1;
}
}
}
@@ -299,9 +299,9 @@ nonterminals_reduce (void)
for (i = ntokens; i < nsyms; i++)
if (!bitset_test (V, i))
{
nontermmap[i - ntokens] = n++;
warn_at (symbols[i]->location, _("nonterminal useless in grammar: %s"),
symbols[i]->tag);
nontermmap[i - ntokens] = n++;
warn_at (symbols[i]->location, _("nonterminal useless in grammar: %s"),
symbols[i]->tag);
}
@@ -322,11 +322,11 @@ nonterminals_reduce (void)
rule_number r;
for (r = 0; r < nrules; ++r)
{
item_number *rhsp;
for (rhsp = rules[r].rhs; *rhsp >= 0; ++rhsp)
if (ISVAR (*rhsp))
*rhsp = symbol_number_as_item_number (nontermmap[*rhsp
- ntokens]);
item_number *rhsp;
for (rhsp = rules[r].rhs; *rhsp >= 0; ++rhsp)
if (ISVAR (*rhsp))
*rhsp = symbol_number_as_item_number (nontermmap[*rhsp
- ntokens]);
}
accept->number = nontermmap[accept->number - ntokens];
}
@@ -350,7 +350,7 @@ reduce_output (FILE *out)
int i;
fprintf (out, "%s\n\n", _("Nonterminals useless in grammar"));
for (i = 0; i < nuseless_nonterminals; ++i)
fprintf (out, " %s\n", symbols[nsyms + i]->tag);
fprintf (out, " %s\n", symbols[nsyms + i]->tag);
fputs ("\n\n", out);
}
@@ -359,19 +359,19 @@ reduce_output (FILE *out)
int i;
for (i = 0; i < ntokens; i++)
if (reduce_token_unused_in_grammar (i))
{
if (!b)
fprintf (out, "%s\n\n", _("Terminals unused in grammar"));
b = true;
fprintf (out, " %s\n", symbols[i]->tag);
}
{
if (!b)
fprintf (out, "%s\n\n", _("Terminals unused in grammar"));
b = true;
fprintf (out, " %s\n", symbols[i]->tag);
}
if (b)
fputs ("\n\n", out);
}
if (nuseless_productions > 0)
grammar_rules_partial_print (out, _("Rules useless in grammar"),
rule_useless_in_grammar_p);
rule_useless_in_grammar_p);
}
@@ -417,8 +417,8 @@ reduce_grammar (void)
if (!bitset_test (N, accept->number - ntokens))
fatal_at (startsymbol_location,
_("start symbol %s does not derive any sentence"),
startsymbol->tag);
_("start symbol %s does not derive any sentence"),
startsymbol->tag);
/* First reduce the nonterminals, as they renumber themselves in the
whole grammar. If you change the order, nonterms would be
@@ -434,7 +434,7 @@ reduce_grammar (void)
fprintf (stderr, "reduced %s defines %d terminals, %d nonterminals\
, and %d productions.\n",
grammar_file, ntokens, nvars, nrules);
grammar_file, ntokens, nvars, nrules);
}
}