X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/184b42c85be3d42c958173c550ea442baf96a8cd..HEAD:/NEWS diff --git a/NEWS b/NEWS index fdd92483..2aed3f2a 100644 --- a/NEWS +++ b/NEWS @@ -4,6 +4,88 @@ GNU Bison NEWS ** Bug fixes +*** Location of errors + + In C++ parsers, out-of-bounds errors can happen when a rule with an empty + ride-hand side raises a syntax error. The behavior of the default parser + (yacc.c) in such a condition was undefined. + + Now all the parsers match the behavior of glr.c: @$ is used as the + location of the error. This handles gracefully rules with and without + rhs. + +* Noteworthy changes in release 3.0.4 (2015-01-23) [stable] + +** Bug fixes + +*** C++ with Variants (lalr1.cc) + + Fix a compiler warning when no %destructor use $$. + +*** Test suites + + Several portability issues in tests were fixed. + +* Noteworthy changes in release 3.0.3 (2015-01-15) [stable] + +** Bug fixes + +*** C++ with Variants (lalr1.cc) + + Problems with %destructor and '%define parse.assert' have been fixed. + +*** Named %union support (yacc.c, glr.c) + + 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 (yacc.c, glr.c) + + The 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 @@ -2680,7 +2762,7 @@ 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.