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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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#ifndef CHAR_INCLUDED
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#define CHAR_INCLUDED
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/*
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    TYPE REPRESENTING A CHARACTER
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    A character consists of a single letter (which may have associated
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    data) plus pointers to the next character and to a list of alternative
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    characters.
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*/
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typedef unsigned int letter;
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typedef struct character_tag {
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    letter ch;
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    char *defn;
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    char *args;
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    char *cond;
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    struct character_tag *opt;
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    struct character_tag *next;
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} character;
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/*
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    TYPE REPRESENTING A CHARACTER GROUP
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    A character group is a named array of letters.
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*/
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typedef struct {
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    char *name;
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    letter *defn;
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} char_group;
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/*
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    TYPE REPRESENTING A KEYWORD
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    A keyword consists of a name plus some associated data.  All keywords
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    are formed into a list using the next field.  done is a flag used in
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    the output routines.
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*/
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typedef struct keyword_tag {
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    char *name;
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    char *defn;
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    char *args;
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    char *cond;
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    int done;
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    struct keyword_tag *next;
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} keyword;
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/*
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    PARAMETERS
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*/
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#define MAX_GROUPS		15
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/*
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    SPECIAL LETTERS
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*/
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#define SIMPLE_LETTER		((letter)0x0100)
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#define EOF_LETTER		((letter)0x0100)
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#define LAST_LETTER		((letter)0x0101)
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#define WHITE_LETTER		((letter)0x0102)
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#define GROUP_LETTER		((letter)0x0103)
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/*
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    DECLARATIONS FOR CHARACTER ROUTINES
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*/
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extern letter *white_space;
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extern character *pre_pass;
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extern character *main_pass;
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extern char_group groups [];
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extern int no_groups;
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extern keyword *keywords;
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extern void add_char(character *, letter *, char **);
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extern void make_group(char *, letter *);
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extern int in_group(letter *, letter);
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extern letter *make_string(char *);
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extern letter find_escape(int);
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extern void add_keyword(char *, char **);
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#endif