X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c9d5bcc9389ccea013b23eb095dc4a637fadbd42..d79683fa95d91c3afd4de8ee010d0d013a84a222:/NEWS

diff --git a/NEWS b/NEWS
index ad5f738e..a20898fc 100644
--- a/NEWS
+++ b/NEWS
@@ -4,7 +4,7 @@ GNU Bison NEWS
 
 ** Bug fixes
 
-  Bugs in the test suite have been fixed.
+  Bugs and portability issues in the test suite have been fixed.
 
   Some errors in translations have been addressed, and --help now directs
   users to the appropriate place to report them.
@@ -14,6 +14,8 @@ GNU Bison NEWS
   Incorrect definitions of YY_, issued by yacc.c when no parser header is
   generated, are removed.
 
+  All the generated headers are self-contained.
+
 ** Changes in the format of error messages
 
   This used to be the format of many error reports:
@@ -37,6 +39,47 @@ GNU Bison NEWS
 
   will use YY_CALC_LIB_PARSE_H_INCLUDED as guard.
 
+** Exception safety (lalr1.cc)
+
+  The parse function now catches exceptions, uses the %destructors to
+  release memory (the lookahead symbol and the symbols pushed on the stack)
+  before rethrowing the exception.
+
+  This feature is somewhat experimental.  User feedback would be
+  appreciated.
+
+** Fix compiler warnings in the generated parser (yacc.c, glr.c)
+
+  The compilation of pure parsers (%define api.pure) can trigger GCC
+  warnings such as:
+
+    input.c: In function 'yyparse':
+    input.c:1503:12: warning: 'yylval' may be used uninitialized in this
+                              function [-Wmaybe-uninitialized]
+       *++yyvsp = yylval;
+                ^
+
+  This is now fixed; pragmas to avoid these warnings are no longer needed.
+
+  Warnings from clang ("equality comparison with extraneous parentheses" and
+  "function declared 'noreturn' should not return") have also been
+  addressed.
+
+** New %define variable: api.location.type (glr.cc, lalr1.cc)
+
+  The %define variable api.location.type defines the name of the type to use
+  for locations.  When defined, Bison no longer generates the position.hh
+  and location.hh files, nor does the parser will include them: the user is
+  then responsible to define her type.
+
+  This can be used in programs with several parsers to factor their location
+  and position files: let one of them generate them, and let the others
+  simply resue these types and files.
+
+  This feature was actually introduced, but not documented, in Bison 2.5,
+  under the name "location_type" (which is maintained for backward
+  compatibility).
+
 * Noteworthy changes in release 2.6.2 (2012-08-03) [stable]
 
 ** Bug fixes
@@ -1894,7 +1937,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  LocalWords:  namespaces strerror const autoconfiguration Dconst Autoconf's FDL
  LocalWords:  Automake TMPDIR LESSEQ ylwrap endif yydebug YYTOKEN YYLSP ival hh
  LocalWords:  extern YYTOKENTYPE TOKENTYPE yytokentype tokentype STYPE lval pdf
- LocalWords:  lang yyoutput dvi html ps POSIX lvalp llocp
+ LocalWords:  lang yyoutput dvi html ps POSIX lvalp llocp calc yyo fval
 
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