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qualifiers in %code directives, and restrict the characters that are allowed in them to M4-friendly ones. For %define, continue to support the quoted form as a deprecated feature. Discussed starting at <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>. * NEWS (2.3a+): Add entry for the change to %define. Update entry for %code. * doc/bison.texinfo (Prologue Alternatives): Update. (Bison Declaration Summary): In %defines entry, update mention of `%code requires' and `%code provides'. (C++ Location Values): Update %define uses. (Calc++ Parser Interface): Likewise. (Calc++ Parser): Likewise, and update `%code requires' uses. (Bison Symbols): Update %code documentation. * src/parse-gram.y (prologue_declaration): For %define variables, use `variable' instead of `STRING'. (grammar_declaration): For %code qualifiers, use `ID' instead of `STRING'. (variable): New nonterminal that takes an `ID' or a `STRING'. * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code and %define uses. * tests/calc.at (_AT_DATA_CALC_Y): Update %define use. * tests/input.at (Reject unused %code qualifiers): Update %code uses. (%define errors): Update %define uses.
This directory contains the Bison parser generator. See the file INSTALL for generic compilation and installation instructions. See the file doc/FAQ for frequently asked questions. Bison requires GNU m4 1.4.3 or later. See: ftp://ftp.gnu.org/gnu/m4/m4-1.4.3.tar.gz Bison can work with pre-1.4.3 distributions of GNU m4 if they are sufficiently patched, but if you encounter a bug with an older distribution and report a bug we will probably suggest that you upgrade to 1.4.3 as the first step in trying to fix it. Please send bug reports to <bug-bison@gnu.org>. Please include the version number from `bison --version', and a complete, self-contained test case in each bug report. If you have questions about using Bison and the documentation does not answer them, please send mail to <help-bison@gnu.org>. ----- Copyright (C) 1992, 1998, 1999, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. Bison is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. Bison is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with autoconf; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.