* 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,
 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+ (????-??-??):
 
 
 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.
 
 * 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:
 
 
 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.
 * 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.
 
 /* 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.
    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
 
 /* 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.
    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
 
 /* 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.
    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,
 
 /* 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.
 
 
    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,
 /* 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.
 
 
    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,
 /* 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.
 
 
    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,
 
 /* 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.
    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,
 
 /* 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.
    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.
 
 /* 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.
    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.
 
 /* 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.
    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.
 
 /* 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.
    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 -*-
 
 # 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
 
 # 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 -*-
 
 # 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
 
 # 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