* Noteworthy changes in release ?.? (????-??-??) [?]
+** Bug fixes
+
+ Warnings about uninitialized yylloc in yyparse have been fixed.
+
+** %language is no longer an experimental feature.
+
+ The introduction of this feature, in 2.4, was four years ago. The --language
+ option and the %language directive are no longer experimental.
+
+** New format for error reports: carets
+
+ Caret errors have been added to Bison, for example (taken from the
+ documentation):
+
+ input.y:3.20-23: error: ambiguous reference: '$exp'
+ exp: exp '+' exp { $exp = $1 + $2; };
+ ^^^^
+
+ The default behaviour for now is still not to display these unless explictly
+ asked with -fall of -fcaret. However, in a later release, it will be made the
+ default behavior (but may still be deactivated with -fno-caret).
+
+** New value for %define variable: api.pure full
+
+ The %define variable api.pure requests a pure (reentrant) parser. However,
+ for historical reasons, using it in a location-tracking Yacc parser resulted
+ in an yyerror function that did not take a location as a parameter. With this
+ new value, the user may request a better pure parser, where yyerror does take
+ a location as a parameter (in location-tracking parsers).
+
+ The use of "%define api.pure true" is deprecated in favor of this new
+ "%define api.pure full".
+
** Changes in the format of error messages
This used to be the format of many error reports:
Two nodes were added to the documentation: Xml and Graphviz.
-* Noteworthy changes in release ?.? (????-??-??) [?]
-
-** Bug fixes
-
- Warnings about uninitialized yylloc in yyparse have been fixed.
-
** Documentation
The sections about shift/reduce and reduce/reduce conflicts resolution
projects / bison.git / blobdiff