* Noteworthy changes in release ?.? (????-??-??) [?]
+** Bug fixes
+
+ Portability issues in the test suite.
+
+* Noteworthy changes in release 3.0 (2013-07-25) [stable]
+
** WARNING: Future backward-incompatibilities!
Like other GNU packages, Bison will start using some of the C99 features
Changes in Bison 2.7 introduced a dependency on FILE and fprintf when
locations are enabled. This is fixed.
+*** Warnings about useless %pure-parser/%define api.pure are restored
+
** Diagnostics reported by Bison
Most of these features were contributed by Théophile Ranquet and Victor
%param {arg1_type *arg1} {arg2_type *arg2}
+** Types of values for %define variables
+
+ Bison used to make no difference between '%define foo bar' and '%define
+ foo "bar"'. The former is now called a 'keyword value', and the latter a
+ 'string value'. A third kind was added: 'code values', such as '%define
+ foo {bar}'.
+
+ Keyword variables are used for fixed value sets, e.g.,
+
+ %define lr.type lalr
+
+ Code variables are used for value in the target language, e.g.,
+
+ %define api.value.type {struct semantic_type}
+
+ String variables are used remaining cases, e.g. file names.
+
** Variable api.token.prefix
The variable api.token.prefix changes the way tokens are identified in
with identifiers in the target language. For instance
%token FILE for ERROR
- %define api.token.prefix "TOK_"
+ %define api.token.prefix {TOK_}
%%
start: FILE for ERROR;
yylval.ival = 42; return INT;
yylval.sval = "42"; return STRING;
- The %define variable api.value.type supports several special values. The
- keyword value 'union' means that the user provides genuine types, not
+ The %define variable api.value.type supports both keyword and code values.
+
+ The keyword value 'union' means that the user provides genuine types, not
union member names such as "ival" and "sval" above (WARNING: will fail if
-y/--yacc/%yacc is enabled).
%token <int> INT "integer"
%token <std::string> STRING "string"
- Values between braces denote user defined types. This is where YYSTYPE
+ Code values (in braces) denote user defined types. This is where YYSTYPE
used to be used.
%code requires
** Java skeleton improvements
- Contributed by Paolo Bonzini.
-
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".
+ Contributed by Paolo Bonzini.
+
+ The Java skeleton now supports push parsing.
+ Contributed by Dennis Heimbigner.
** C++ skeletons improvements
...
}
+*** C++ locations
+
+ There are operator- and operator-= for 'location'. Negative line/column
+ increments can no longer underflow the resulting value.
+
+* Noteworthy changes in release 2.7.1 (2013-04-15) [stable]
+
+** Bug fixes
+
+*** Fix compiler attribute portability (yacc.c)
+
+ With locations enabled, __attribute__ was used unprotected.
+
+*** Fix some compiler warnings (lalr1.cc)
+
* Noteworthy changes in release 2.7 (2012-12-12) [stable]
** Bug fixes