X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c6bf97ccb45672a004ef376b9f3e578d2f558d5f..c49e2f153521a86f22b2631ca8a1fb6389c3a70e:/NEWS diff --git a/NEWS b/NEWS index 3789e92d..593251a6 100644 --- a/NEWS +++ b/NEWS @@ -2,6 +2,39 @@ GNU Bison NEWS * 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: @@ -56,12 +89,6 @@ GNU Bison NEWS 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