maint: check for dot before using it

[bison.git] / NEWS

diff --git a/NEWS b/NEWS
index 1fe419f426ca4e42683440c9c8a04065788b03f8..d1b66564f40c037512b62df9098d34bf118e00c0 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -43,7 +43,7 @@ GNU Bison NEWS
 
   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.
+  before re-throwing the exception.
 
   This feature is somewhat experimental.  User feedback would be
   appreciated.
@@ -65,6 +65,34 @@ GNU Bison NEWS
   "function declared 'noreturn' should not return") have also been
   addressed.
 
+** New %define variable: api.location.type (glr.cc, lalr1.cc, lalr1.java)
+
+  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 the others just use
+  them.
+
+  This feature was actually introduced, but not documented, in Bison 2.5,
+  under the name "location_type" (which is maintained for backward
+  compatibility).
+
+  For consistency, lalr1.java's %define variables location_type and
+  position_type are deprecated in favor of api.location.type and
+  api.position.type.
+
+** Graphviz improvements
+
+  The graphical presentation of the states is more readable: their shape is
+  now rectangular, the state number is clearly displayed, and the items are
+  numbered and left-justified.
+
+  The reductions are now explicitly represented as transitions to other
+  diamond shaped nodes.
+
 * Noteworthy changes in release 2.6.2 (2012-08-03) [stable]
 
 ** Bug fixes
@@ -1922,7 +1950,8 @@ 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 calc yyo fval
+ LocalWords:  lang yyoutput dvi html ps POSIX lvalp llocp calc yyo fval Wmaybe
+ LocalWords:  yyvsp pragmas noreturn java's
 
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