default. You can specify the type of parser tables in the grammar
file with these directives:
- %define lr.type "lalr"
- %define lr.type "ielr"
- %define lr.type "canonical-lr"
+ %define lr.type lalr
+ %define lr.type ielr
+ %define lr.type canonical-lr
The default reduction optimization in the parser tables can also be
adjusted using `%define lr.default-reductions'. See the documentation
These features are experimental. More user feedback will help to
stabilize them.
-** Multiple %define's for any variable is now an error not a warning.
+** Unrecognized %code qualifiers are now an error not a warning.
-** %define can now be invoked via the command line.
+** %define improvements.
+
+*** Unrecognized variables are now an error not a warning.
+
+*** Multiple invocations for any variable is now an error not a warning.
+
+*** Can now be invoked via the command line.
Each of these command-line options
quietly override %define, but -D and --define do not. For further
details, see the section "Bison Options" in the Bison manual.
-** %define variables renamed.
+*** Variables renamed.
The following %define variables
The old names are now deprecated but will be maintained indefinitely
for backward compatibility.
-** Symbols names
+*** Values no longer need to be quoted in grammar file.
+
+ If a %define value is an identifier, it no longer needs to be placed
+ within quotations marks. For example,
+
+ %define api.push-pull "push"
+
+ can be rewritten as
+
+ %define api.push-pull push
+
+** Symbol names.
Consistently with directives (such as %error-verbose) and variables
(e.g. push-pull), symbol names may include dashes in any position,
Bison's Java feature as a whole including its current usage of %code
is still considered experimental.
+** Internationalization.
+
+ Fix a regression introduced in Bison 2.4: Under some circumstances,
+ message translations were not installed although supported by the
+ host system.
+
* Changes in version 2.4.1 (2008-12-11):
** In the GLR defines file, unexpanded M4 macros in the yylval and yylloc