Bison News
----------
-Changes in version 1.75a:
+Changes in version 1.75b:
+
+* %destructor
+ It is now possible to reclaim the memory associated to symbols
+ discarded during error recovery. This feature is still experimental.
+
+* Bison now parses C99 lexical constructs like digraphs, UCNs, and
+ backslash-newline within C escape sequences, as POSIX now requires.
+
+* --no-line works properly.
+
+* %error-verbose
+ This new directive is preferred over YYERROR_VERBOSE.
+
+* %lex-param, %parse-param
+ These new directives are preferred over PARSE_PARAM and LEX_PARAM.
+ In addition, they provide a means for yyerror to remain pure, and
+ to access to the current location.
+
+ #defining yyerror to steal internal variables is strongly
+ discouraged. It is not guaranteed to work for ever.
+
+* #line
+ Bison now recognizes #line in its input, and forwards them.
+
+* #line
+ File names are properly escaped. E.g. foo\bar.y give #line 123 "foo\\bar.y".
+
+Changes in version 1.75a, 2002-10-24:
* Bison can no longer be built by a K&R C compiler; it requires C89 or
later to be built. This change originally took place a few versions
ago, but nobody noticed until we recently asked someone to try
building Bison with a K&R C compiler.
-Changes in version 1.75:
+Changes in version 1.75, 2002-10-14:
* Bison should now work on 64-bit hosts.
the user symbol is used in the reports, the graphs, and the verbose
error messages instead of `$end', which remains being the default.
For instance
- %token YYEOF 0
+ %token MYEOF 0
or
- %token YYEOF 0 "end of file"
+ %token MYEOF 0 "end of file"
* Semantic parser
This old option, which has been broken for ages, is removed.
\f
Changes in version 1.30, 2001-10-26:
-* `--defines' and `--graph' have now an optionnal argument which is the
- output file name. `-d' and `-g' do not change, they do not take any
+* `--defines' and `--graph' have now an optional argument which is the
+ output file name. `-d' and `-g' do not change; they do not take any
argument.
* `%source_extension' and `%header_extension' are removed, failed