X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/39bace5da815c0290ce5e84628ca7615307b8349..5422471cbb68d8b5775046702cc92209b0718f58:/NEWS diff --git a/NEWS b/NEWS index 6a423ad9..490e89ed 100644 --- a/NEWS +++ b/NEWS @@ -4,6 +4,82 @@ GNU Bison NEWS ** Bug fixes +*** Named %union support + + Bison 3.0 introduced a regression on named %union such as + + %union foo { int ival; }; + + The possibility to use a name was introduced ``for Yacc compatibility''. + It is however not required by POSIX Yacc, and its usefulness is not clear. + +*** %define api.value.type union with %defines + + The yacc.c and glr.c parsers were broken when %defines was used + together with "%define api.value.type union". + +*** Redeclarations are reported in proper order + + On + + %token FOO "foo" + %printer {} "foo" + %printer {} FOO + + bison used to report: + + /tmp/foo.yy:2.10-11: error: %printer redeclaration for FOO + %printer {} "foo" + ^^ + /tmp/foo.yy:3.10-11: previous declaration + %printer {} FOO + ^^ + + Now, the "previous" declaration is always the first one. + + +** Documentation + + Bison now installs various files in its docdir (which defaults to + '/usr/local/share/doc/bison'), including the three fully blown examples + extracted from the documentation: + + - rpcalc + Reverse polish calculator, a simple introductory example. + - mfcalc + Multi-function Calc, a calculator with memory and functions and located + error messages. + - calc++ + a calculator in C++ using variant support and token constructors. + +* Noteworthy changes in release 3.0.2 (2013-12-05) [stable] + +** Bug fixes + +*** Generated source files when errors are reported + + When warnings are issued and -Werror is set, bison would still generate + the source files (*.c, *.h...). As a consequence, some runs of "make" + could fail the first time, but not the second (as the files were generated + anyway). + + This is fixed: bison no longer generates this source files, but, of + course, still produces the various reports (*.output, *.xml, etc.). + +*** %empty is used in reports + + Empty right-hand sides are denoted by '%empty' in all the reports (text, + dot, XML and formats derived from it). + +*** YYERROR and variants + + When C++ variant support is enabled, an error triggered via YYERROR, but + not caught via error recovery, resulted in a double deletion. + +* Noteworthy changes in release 3.0.1 (2013-11-12) [stable] + +** Bug fixes + *** Errors in caret diagnostics On some platforms, some errors could result in endless diagnostics. @@ -22,6 +98,11 @@ GNU Bison NEWS As demonstrated in the documentation, one can now leave spaces between "%?" and its "{". +*** Installation + + The yacc.1 man page is no longer installed if --disable-yacc was + specified. + *** Fixes in the test suite Bugs and portability issues. @@ -2651,7 +2732,7 @@ Output file does not redefine const for C++. ----- -Copyright (C) 1995-2013 Free Software Foundation, Inc. +Copyright (C) 1995-2015 Free Software Foundation, Inc. This file is part of Bison, the GNU Parser Generator.