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%end-header. Don't use these declarations to separate pre-prologue blocks from post-prologue blocks. Add new order-independent declarations %before-header and %after-header as alternatives to the traditional Yacc pre-prologue and post-prologue blocks. Discussed at <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>. * NEWS (2.3+): Update for these changes. * data/glr.c (b4_before_definitions): Update to... (b4_start_header): ... this. (b4_after_definitions): Update to... (b4_end_header): ... this. * data/glr.cc: Likewise. * data/lalr1.cc: Likewise. * data/yacc.c: Likewise. * doc/bison.texinfo (The prologue): Update names, and replace remaining prologue blocks with %*-header declarations. (Calc++ Parser): Likewise. (Bison Declaration Summary): Update names. (Bison Symbols): Update description. * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to... (PERCENT_END_HEADER): ... this. (PERCENT_BEFORE_DEFINITIONS): Update to... (PERCENT_START_HEADER): ... this. (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens. (declaration): Update token names and m4 macro names. When parsing %end-header and %start-header, invoke translate_code before muscle_code_grow, and no longer set global booleans to remember whether these declarations have been seen. Parse new %after-header and %before-header. * src/reader.c (before_definitions, after_definitions): Remove. (prologue_augment): Accept a new bool argument to specify whether to augment the pre-prologue or post-prologue. * src/reader.h (before_definitions, after_definitions): Remove these extern's. (prologue_augment): Add new bool argument. * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to... (PERCENT_END_HEADER): ... this. (PERCENT_BEFORE_DEFINITIONS): Update to... (PERCENT_START_HEADER): ... this. (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens. * tests/actions.at (Printers and Destructors): Update names.
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.