* NEWS (2.3a+): Mention yesterday's state-removal change.

(2.3a): Remove the %language entry, which was added after 2.3a.
* src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
tests/existing.at: Update copyright date.

diff --git a/ChangeLog b/ChangeLog
index 6d0cec9d8dc246995b810641e74d907e623de155..dc8d78351819e5a220a5f947896cecfda2ab5802 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2007-05-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+       * NEWS (2.3a+): Mention yesterday's state-removal change.
+       (2.3a): Remove the %language entry, which was added after 2.3a.
+       * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
+       src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
+       src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
+       tests/existing.at: Update copyright date.
+
 2007-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
 
        If conflict resolution makes states unreachable, remove those states,

diff --git a/NEWS b/NEWS
index 68fb66f030d184d335063be628bef2b7ff2a481f..854023ccd5bf91df0a37ba24213b3d79ca231efc 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,18 @@ Bison News
 
 Changes in version 2.3a+ (????-??-??):
 
+* Previously, Bison sometimes generated parser tables with states that were
+  unreachable due to conflicts in predecessor states.  Bison now:
+
+    1. Removes unreachable states.
+
+    2. Does not report any conflicts that appeared in unreachable states.
+       WARNING: As a result, you may need to update %expect and %expect-rr
+       directives in existing grammar files.
+
+    3. For any rule used only in such states, Bison now reports the rule as
+       "never reduced because of conflicts".
+
 * The -g and --graph options now output graphs in Graphviz DOT format,
   not VCG format.
 
@@ -92,9 +104,6 @@ Changes in version 2.3a+ (????-??-??):
 
 Changes in version 2.3a, 2006-09-13:
 
-* Bison now supports generating Java parsers.  Grammars written for
-  the Java language should include the `%language "Java"' directive.
-
 * Instead of %union, you can define and use your own union type
   YYSTYPE if your grammar contains at least one <type> tag.
   Your YYSTYPE need not be a macro; it can be a typedef.

diff --git a/src/LR0.c b/src/LR0.c
index f94f5ec900a6758194f005ad56c0623c4e656854..3fd633fa5749b538fd237dc1138dcb3a2c9cded4 100644 (file)
--- a/src/LR0.c
+++ b/src/LR0.c
@@ -1,6 +1,6 @@
 /* Generate the nondeterministic finite state machine for Bison.
 
-   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2004, 2005, 2006
+   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2004, 2005, 2006, 2007
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

diff --git a/src/closure.c b/src/closure.c
index a12e9622e51b83190947333924ebd4744913644b..89b033ff06633397795f8949eec8ea107f9c4fcb 100644 (file)
--- a/src/closure.c
+++ b/src/closure.c
@@ -1,6 +1,6 @@
 /* Closures for Bison
 
-   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2004, 2005 Free
+   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2004, 2005, 2007 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

diff --git a/src/closure.h b/src/closure.h
index c170e645a82f573635c0024f2e1914952fe0dcf5..96c849e080977cfd243d5437c6ade0d4fde573a0 100644 (file)
--- a/src/closure.h
+++ b/src/closure.h
@@ -1,6 +1,6 @@
 /* Subroutines for bison
 
-   Copyright (C) 1984, 1989, 2000, 2001, 2002 Free Software
+   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2007 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

diff --git a/src/conflicts.c b/src/conflicts.c
index 16fa0ae0a4080ef8378fbe9a0c33c3be87ee55b8..cb7f13a6ebe3b24f44a39536ef07f477da71bda2 100644 (file)
--- a/src/conflicts.c
+++ b/src/conflicts.c
@@ -1,7 +1,7 @@
 /* Find and resolve or report lookahead conflicts for bison,
 
-   Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002, 2003, 2004, 2005, 2006
-   Free Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 1992, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2007 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 

diff --git a/src/conflicts.h b/src/conflicts.h
index 055905eb78a8acd0020af50ffb56f4aae33edd18..95c5d69b7c547b11c7a511e63be5540cc3c90c55 100644 (file)
--- a/src/conflicts.h
+++ b/src/conflicts.h
@@ -1,5 +1,5 @@
 /* Find and resolve or report lookahead conflicts for bison,
-   Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002, 2004, 2007 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 

diff --git a/src/lalr.c b/src/lalr.c
index 00455b06a9f63ddcd9662f49fc532f2b8baaa9c5..f7560552af26d1441d9367f30a2c0afa998b4e8a 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 Free Software Foundation, Inc.
+   2006, 2007 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 

diff --git a/src/lalr.h b/src/lalr.h
index 0c68cd747406d1c57e18240bb84cfc414dbd241c..3fb2ca2f3e5ef520cfb0a9e35fddae225834be16 100644 (file)
--- a/src/lalr.h
+++ b/src/lalr.h
@@ -1,6 +1,6 @@
 /* Compute lookahead criteria for bison,
 
-   Copyright (C) 1984, 1986, 1989, 2000, 2002, 2004, 2006 Free Software
+   Copyright (C) 1984, 1986, 1989, 2000, 2002, 2004, 2006, 2007 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

diff --git a/src/print.c b/src/print.c
index 3fecc2a71ea1592253e4d3271a4d8241ce202a5e..f16816a02ac3e4268eea8e9982429c6c5a73861c 100644 (file)
--- a/src/print.c
+++ b/src/print.c
@@ -1,6 +1,6 @@
 /* Print information on generated parser, for bison,
 
-   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005
+   Copyright (C) 1984, 1986, 1989, 2000, 2001, 2002, 2003, 2004, 2005, 2007
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

diff --git a/src/print_graph.c b/src/print_graph.c
index 8898c9aaa56ba06a798b9b7930e9a71a019a3f7d..76a76587d66bb7b64eccd9dfb1e3c78693ad7591 100644 (file)
--- a/src/print_graph.c
+++ b/src/print_graph.c
@@ -1,6 +1,6 @@
 /* Output a graph of the generated parser, for Bison.
 
-   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

diff --git a/src/state.c b/src/state.c
index bae3575e4881e3705c734ceb5fc6385fdb721f43..9448da7dd988040bc5e55cc6753e6dab3dcb2a97 100644 (file)
--- a/src/state.c
+++ b/src/state.c
@@ -1,6 +1,6 @@
 /* Type definitions for nondeterministic finite state machine for Bison.
 
-   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software
    Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

diff --git a/src/state.h b/src/state.h
index 668aa73f914c9dca8fe5c59e855b8ace4b888305..e0aa6b75280fb14601e8c1102f240cec6c67e14b 100644 (file)
--- a/src/state.h
+++ b/src/state.h
@@ -1,6 +1,6 @@
 /* Type definitions for nondeterministic finite state machine for Bison.
 
-   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2003, 2004 Free
+   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2003, 2004, 2007 Free
    Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.

diff --git a/tests/conflicts.at b/tests/conflicts.at
index 79a77307600a7bc2ee5a77775266ad83f449e279..21ba86d7529c63c81abe7bed806f9f1747a21ffe 100644 (file)
--- a/tests/conflicts.at
+++ b/tests/conflicts.at
@@ -1,6 +1,6 @@
 # Exercising Bison on conflicts.                         -*- Autotest -*-
 
-# Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+# Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
 
 # 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

diff --git a/tests/existing.at b/tests/existing.at
index cb385f53e166bb6e8e482a023879dfa0c82c44e9..fe3435844003f212257c79a7b9e0339067796cbc 100644 (file)
--- a/tests/existing.at
+++ b/tests/existing.at
@@ -1,7 +1,7 @@
 # Exercising Bison on actual grammars.                   -*- Autotest -*-
 
-# Copyright (C) 1989, 1990, 1991, 1992, 2000, 2001, 2002, 2003, 2004, 2005
-# Free Software Foundation, Inc.
+# Copyright (C) 1989, 1990, 1991, 1992, 2000, 2001, 2002, 2003, 2004, 2005,
+# 2007 Free Software Foundation, Inc.
 
 # 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