tests: AT_YYERROR_DEFINE: prepare for list of ints.

[bison.git] / src / lalr.c

diff --git a/src/lalr.c b/src/lalr.c
index 4aa05b9ee6dfe22334d1547a445fde6a11d91023..98661544ff40d57d7f8ef17664f3c1d74b707e7c 100644 (file)
--- a/src/lalr.c
+++ b/src/lalr.c
@@ -1,7 +1,7 @@
 /* Compute lookahead criteria for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005,
-   2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 2000-2012 Free Software Foundation,
+   Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -19,8 +19,7 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 
-/* Compute how to make the finite state machine deterministic; find
-   which rules need lookahead in each state, and which lookahead
+/* Find which rules need lookahead in each state, and which lookahead
    tokens they accept.  */
 
 #include <config.h>
@@ -28,7 +27,6 @@
 
 #include <bitset.h>
 #include <bitsetv.h>
-#include <quotearg.h>
 
 #include "LR0.h"
 #include "complain.h"
@@ -36,7 +34,7 @@
 #include "getargs.h"
 #include "gram.h"
 #include "lalr.h"
-#include "muscle_tab.h"
+#include "muscle-tab.h"
 #include "nullable.h"
 #include "reader.h"
 #include "relation.h"
@@ -344,10 +342,11 @@ state_lookahead_tokens_count (state *s, bool default_reduction_only_for_accept)
   /* We need a lookahead either to distinguish different reductions
      (i.e., there are two or more), or to distinguish a reduction from a
      shift.  Otherwise, it is straightforward, and the state is
-     `consistent'.  However, treat only the accepting state as
-     consistent (because there is never a lookahead token that makes
-     sense there, and so no lookahead token should be read) if the user
-     has otherwise disabled default reductions.  */
+     `consistent'.  However, do not treat a state with any reductions as
+     consistent unless it is the accepting state (because there is never
+     a lookahead token that makes sense there, and so no lookahead token
+     should be read) if the user has otherwise disabled default
+     reductions.  */
   if (rp->num > 1
       || (rp->num == 1 && sp->num && TRANSITION_IS_SHIFT (sp, 0))
       || (rp->num == 1 && rp->rules[0]->number != 0