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Simplify handling of '.' and '-' after unbracketed named references.
[bison.git]
/
src
/
nullable.c
diff --git
a/src/nullable.c
b/src/nullable.c
index ef65ef46af481826b19ab90c4614b1c11551b562..c11aa53493e5358e3390325dbecf6286b28b28d7 100644
(file)
--- a/
src/nullable.c
+++ b/
src/nullable.c
@@
-1,24
+1,22
@@
/* Calculate which nonterminals can expand into the null string for Bison.
/* Calculate which nonterminals can expand into the null string for Bison.
- Copyright (C) 1984, 1989, 2000
, 2001, 2002, 2003, 2004, 2005 Fre
e
-
Software
Foundation, Inc.
+ Copyright (C) 1984, 1989, 2000
-2006, 2009-2011 Free Softwar
e
+ Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
This file is part of Bison, the GNU Compiler Compiler.
-
Bison is free software;
you can redistribute it and/or modify
+
This program is free software:
you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
it under the terms of the GNU General Public License as published by
- the Free Software Foundation
; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation
, either version 3 of the License, or
+
(at your option)
any later version.
-
Bison
is distributed in the hope that it will be useful,
+
This program
is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with Bison; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Set up NULLABLE, a vector saying which nonterminals can expand into
/* Set up NULLABLE, a vector saying which nonterminals can expand into
@@
-104,8
+102,8
@@
nullable_compute (void)
else
{
/* This rule has an empty RHS. */
else
{
/* This rule has an empty RHS. */
-
if (item_number_as_rule_number (rules_ruleno->rhs[0]) != ruleno
)
-
abort (
);
+
aver (item_number_as_rule_number (rules_ruleno->rhs[0]
)
+
== ruleno
);
if (rules_ruleno->useful
&& ! nullable[rules_ruleno->lhs->number - ntokens])
{
if (rules_ruleno->useful
&& ! nullable[rules_ruleno->lhs->number - ntokens])
{