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/*
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* Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.org/>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of The TenDRA Project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific, prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
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* IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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/*
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Crown Copyright (c) 1997
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This TenDRA(r) Computer Program is subject to Copyright
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owned by the United Kingdom Secretary of State for Defence
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acting through the Defence Evaluation and Research Agency
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(DERA). It is made available to Recipients with a
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royalty-free licence for its use, reproduction, transfer
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to other parties and amendment for any purpose not excluding
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product development provided that any such use et cetera
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shall be deemed to be acceptance of the following conditions:-
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(1) Its Recipients shall ensure that this Notice is
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reproduced upon any copies or amended versions of it;
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(2) Any amended version of it shall be clearly marked to
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show both the nature of and the organisation responsible
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for the relevant amendment or amendments;
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(3) Its onward transfer from a recipient to another
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party shall be deemed to be that party's acceptance of
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these conditions;
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(4) DERA gives no warranty or assurance as to its
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quality or suitability for any purpose and DERA accepts
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no liability whatsoever in relation to any use to which
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it may be put.
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*/
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/*** grammar.h --- Grammar transforms frontend.
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*
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** Author: Steve Folkes <smf@hermes.mod.uk>
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*
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*** Commentary:
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*
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* See the file "grammar.c" for more information.
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*
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*** Change Log:
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* $Log: grammar.h,v $
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* Revision 1.1.1.1 1998/01/17 15:57:46 release
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* First version to be checked into rolling release.
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*
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* Revision 1.2 1994/12/15 09:58:15 smf
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* Brought into line with OSSG C Coding Standards Document, as per
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* "CR94_178.sid+tld-update".
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*
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* Revision 1.1.1.1 1994/07/25 16:04:34 smf
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* Initial import of SID 1.8 non shared files.
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*
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**/
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/****************************************************************************/
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#ifndef H_GRAMMAR
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#define H_GRAMMAR
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#include "os-interface.h"
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#include "entry.h"
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#include "entry-list.h"
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#include "ostream.h"
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#include "table.h"
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#include "types.h"
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/*--------------------------------------------------------------------------*/
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typedef struct GrammarT {
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TableT table;
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EntryListT entry_list;
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unsigned terminal;
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EntryP predicate_type;
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EntryP predicate_id;
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} GrammarT, *GrammarP;
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/*--------------------------------------------------------------------------*/
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extern void grammar_init(GrammarP);
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extern TableP grammar_table(GrammarP);
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extern EntryListP grammar_entry_list(GrammarP);
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extern unsigned grammar_max_terminal(GrammarP);
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extern unsigned grammar_next_terminal(GrammarP);
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extern EntryP grammar_get_predicate_type(GrammarP);
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extern void grammar_set_predicate_type(GrammarP, EntryP);
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extern EntryP grammar_get_predicate_id(GrammarP);
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extern void grammar_check_complete(GrammarP);
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extern void grammar_remove_left_recursion(GrammarP);
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extern void grammar_compute_first_sets(GrammarP);
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extern void grammar_factor(GrammarP);
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extern void grammar_simplify(GrammarP);
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extern void grammar_compute_inlining(GrammarP);
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extern void grammar_check_collisions(GrammarP);
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extern void grammar_recompute_alt_names(GrammarP);
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extern void grammar_compute_mutations(GrammarP);
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extern void write_grammar(OStreamP, GrammarP);
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/*--------------------------------------------------------------------------*/
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#ifdef FS_FAST
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#define grammar_table(g) (&((g)->table))
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#define grammar_entry_list(g) (&((g)->entry_list))
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#define grammar_max_terminal(g) ((g)->terminal)
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#define grammar_get_predicate_type(g) ((g)->predicate_type)
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#define grammar_set_predicate_type(g, t) ((g)->predicate_type = (t))
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#define grammar_get_predicate_id(g) ((g)->predicate_id)
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#endif /* defined (FS_FAST) */
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#endif /* !defined (H_GRAMMAR) */
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/*
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* Local variables(smf):
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* eval: (include::add-path-entry "../os-interface" "../library")
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* eval: (include::add-path-entry "../generated")
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* end:
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**/
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