variables: use `parse.assert' instead of `debug'.

[bison.git] / NEWS

diff --git a/NEWS b/NEWS
index fe1144eca94ccddad4c59cf1fda48ac6805fb215..b436896f6531a4b23a46369ab737cbe721afc8d0 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -3,15 +3,54 @@ Bison News
 
 * Changes in version ?.? (????-??-??):
 
+** Java skeleton improvements:
+
+  The constants for token names were moved to the Lexer interface.
+  Also, it is possible to add code to the parser's constructors using
+  "%code init" and "%define init_throws".
+
+* Changes in version 2.5 (????-??-??):
+
+** %define can now be invoked via the command line.
+
+  Each of these bison command-line options
+
+    -D NAME=VALUE
+    --define=NAME=VALUE
+
+  is equivalent to this grammar file declaration
+
+    %define NAME "VALUE"
+
+  for any NAME and VALUE.  Omitting `=VALUE' on the command line is
+  equivalent to omitting `"VALUE"' in the declaration.
+
 * Changes in version 2.4.2 (????-??-??):
 
 * Changes in version 2.4.1 (2008-12-11):
 
-* Java skeleton improvements:
+** In the GLR defines file, unexpanded M4 macros in the yylval and yylloc
+   declarations have been fixed.
 
-  The constants for token names were moved to the Lexer interface.
-  Also, it is possible to add code to the parser's constructors using
-  "%code init" and "%define init_throws".
+** Temporary hack for adding a semicolon to the user action.
+
+  Bison used to prepend a trailing semicolon at the end of the user
+  action for reductions.  This allowed actions such as
+
+    exp: exp "+" exp { $$ = $1 + $3 };
+
+  instead of
+
+    exp: exp "+" exp { $$ = $1 + $3; };
+
+  Some grammars still depend on this `feature'.  Bison 2.4.1 restores
+  the previous behavior in the case of C output (specifically, when
+  neither %language or %skeleton or equivalent command-line options
+  are used) to leave more time for grammars depending on the old
+  behavior to be adjusted.  Future releases of Bison will disable this
+  feature.
+
+** A few minor improvements to the Bison manual.
 
 * Changes in version 2.4 (2008-11-02):