/*
* Copyright (c) 2004, The Tendra Project <http://www.ten15.org/>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* Crown Copyright (c) 1997
*
* This TenDRA(r) Computer Program is subject to Copyright
* owned by the United Kingdom Secretary of State for Defence
* acting through the Defence Evaluation and Research Agency
* (DERA). It is made available to Recipients with a
* royalty-free licence for its use, reproduction, transfer
* to other parties and amendment for any purpose not excluding
* product development provided that any such use et cetera
* shall be deemed to be acceptance of the following conditions:-
*
* (1) Its Recipients shall ensure that this Notice is
* reproduced upon any copies or amended versions of it;
*
* (2) Any amended version of it shall be clearly marked to
* show both the nature of and the organisation responsible
* for the relevant amendment or amendments;
*
* (3) Its onward transfer from a recipient to another
* party shall be deemed to be that party's acceptance of
* these conditions;
*
* (4) DERA gives no warranty or assurance as to its
* quality or suitability for any purpose and DERA accepts
* no liability whatsoever in relation to any use to which
* it may be put.
*
* $TenDRA: tendra/src/tools/tspec/lexer.lxi,v 1.4 2004/03/08 14:48:14 bp Exp $
*/
/*
* AUTOMATICALLY GENERATED BY lexi VERSION 1.3
*/
/* LOOKUP TABLE */
typedef unsigned char lookup_type;
static lookup_type lookup_tab [257] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
0x0c, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
0x0a, 0x0a, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x0a,
0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
0x0a, 0x0a, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
};
#ifndef LEX_EOF
#define LEX_EOF 256
#endif
#define lookup_char(C) (lookup_tab [ (C) ])
#define is_white(T) ((T) & 0x01)
#define is_alpha(T) ((T) & 0x02)
#define is_digit(T) ((T) & 0x04)
#define is_alphanum(T) ((T) & 0x08)
/* MAIN PASS ANALYSER */
int
read_token(void)
{
start : {
lookup_type t0;
int c0 = read_char ();
t0 = lookup_char (c0);
if (is_white (t0)) goto start;
switch (c0) {
case '!' : {
return (lex_exclaim);
}
case '"' : {
return (get_string (c0));
}
case '#' : {
return (get_comment (c0));
}
case '$' : {
lookup_type t1;
int c1 = read_char ();
t1 = lookup_char (c1);
if (is_alpha (t1)) {
return (get_variable (c0, c1));
}
unread_char (c1);
break;
}
case '%' : {
int c1 = read_char ();
if (c1 == '%') {
return (get_text (c0, c1));
}
unread_char (c1);
break;
}
case '(' : {
return (lex_open_Hround);
}
case ')' : {
return (lex_close_Hround);
}
case '*' : {
return (lex_star);
}
case '+' : {
lookup_type t1;
int c1 = read_char ();
t1 = lookup_char (c1);
if (is_alpha (t1)) {
return (get_command (c0, c1));
}
unread_char (c1);
break;
}
case ',' : {
return (lex_comma);
}
case '-' : {
return (lex_minus);
}
case '.' : {
int c1 = read_char ();
if (c1 == '.') {
int c2 = read_char ();
if (c2 == '.') {
return (lex_ellipsis);
}
unread_char (c2);
return (lex_dot_Hdot);
}
unread_char (c1);
return (lex_dot);
}
case '/' : {
int c1 = read_char ();
if (c1 == '*') {
return (get_c_comment (c0, c1));
}
unread_char (c1);
break;
}
case ':' : {
int c1 = read_char ();
if (c1 == '=') {
return (lex_assign);
}
unread_char (c1);
return (lex_colon);
}
case ';' : {
return (lex_semicolon);
}
case '=' : {
return (lex_equal);
}
case '?' : {
return (lex_question);
}
case '[' : {
return (lex_open_Hsquare);
}
case ']' : {
return (lex_close_Hsquare);
}
case '{' : {
return (lex_open_Hbrace);
}
case '|' : {
return (lex_or);
}
case '}' : {
return (lex_close_Hbrace);
}
case '~' : {
lookup_type t1;
int c1 = read_char ();
t1 = lookup_char (c1);
if (is_alpha (t1)) {
return (get_local (c0, c1));
}
unread_char (c1);
break;
}
case LEX_EOF : {
return (lex_eof);
}
}
if (is_alpha (t0)) {
return (get_global (c0));
} else if (is_digit (t0)) {
return (get_number (c0));
}
return (unknown_token (c0));
}
}
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