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"initial push" (corresponding to an hypothetical beginning-of-file). And let lalr1.cc honor %initial-action. * doc/bison.texinfo (Initial Action Decl): Clarify, and add an example. * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment. (Parser::Parser): Remove the ctor that used to initialize it. (Parser::parse): Like in the other skeletons, issue the "starting parse" message before any action. Honor %initial-action. Initialize the stacks with the lookahead. * data/yacc.c: Let $$ and @$ in %initial-action designate the look-ahead. Push them in the stacks. * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
-*- outline -*- This directory contains Bison skeletons: the general shapes of the different parser kinds, that are specialized for specific grammars by the bison program. Currently, there are only three supported skeletons: - yacc.c It used to be named bison.simple: it corresponds to C Yacc compatible LALR(1) parsers. - lalr1.cc Produces a C++ parser class. It is still very experimental, and not yet supported. Please, subscribe to bison-patches@gnu.org. - glr.c A Generalized LR C parser based on Bison's LALR(1) tables. These skeletons are the only ones supported by the Bison team. Because the interface between skeletons and the bison program is not finished, *we are not bound to it*. In particular, Bison is not mature enough for us to consider that ``foreign skeletons'' are supported. ----- Copyright (C) 2002 Free Software Foundation, Inc. This file is part of GNU Bison. GNU 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. GNU 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 Bison; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.