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/*

 * Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.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,

 *    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.

 * 3. Neither the name of The TenDRA Project nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific, prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``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 COPYRIGHT HOLDERS OR

 * CONTRIBUTORS 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.

 *

 * $Id$

 */

/*

    		 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.

*/

#ifndef LITERAL_INCLUDED

#define LITERAL_INCLUDED

/*

    LITERAL CONSTRUCTION DECLARATIONS

    The routines in this module are concerned with the construction of

    integer, floating-point, character, string and boolean literal

    expressions.

*/

extern EXP make_literal_exp(string, int *, int);

extern EXP make_bool_exp(unsigned, unsigned);

extern EXP make_string_exp(STRING);

extern int is_zero_float(FLOAT);

extern int eq_float_lit(FLOAT, FLOAT);

extern int eq_string_lit(STRING, STRING);

extern unsigned test_bool_exp(EXP);

extern unsigned long eval_line_digits(string, unsigned *);

extern unsigned long get_multi_char(string, int *);

extern unsigned long get_string_char(STRING, int *);

extern void add_multi_char(string, unsigned long, int);

extern unsigned long eval_unicode(int, unsigned, int *, string *, ERROR *);

extern TYPE find_literal_type(NAT, int, int, string, int *);

extern TYPE find_char_type(NAT);

extern NAT round_float_lit(FLOAT, RMODE);

extern STRING new_string_lit(string, string, int);

extern STRING concat_string_lit(STRING, STRING);

extern STRING share_string_lit(STRING);

extern NAT eval_char_lit(STRING);

extern int get_char_value(EXP);

extern void begin_literal(int, int);

extern void add_range_literal(EXP, int);

extern void add_type_literal(TYPE);

extern void add_token_literal(IDENTIFIER, unsigned);

extern void set_string_qual(CV_SPEC);

extern void set_escape(EXP, EXP);

extern void set_char_lit(TYPE);

extern void init_literal(void);

extern unsigned char digit_values[];

extern unsigned char escape_sequences[];

extern RMODE crt_round_mode;

extern CV_SPEC cv_string;

/*

    STRING TYPES

    The values STRING_* form a bitfield which is used to identify the

    various types of string literals.  The values CHAR_* are used to

    identify the various types of character in multibyte strings.

*/

#define STRING_NONE		((unsigned)0x00)

#define STRING_CHAR		((unsigned)0x01)

#define STRING_WIDE		((unsigned)0x02)

#define STRING_MULTI		((unsigned)0x04)

#define STRING_FAT		((unsigned)0x08)

#define CHAR_SIMPLE		0

#define CHAR_ASCII		1

#define CHAR_OCTAL		2

#define CHAR_HEX		3

#define CHAR_UNI4		4

#define CHAR_UNI8		5

#define CHAR_NONE		6

#define MULTI_WIDTH		5

/*

    BOOLEAN VALUES

    These values give the boolean values, true and false, plus a third

    value indicating an indeterminate boolean.  A fourth error value is

    also given.

*/

#define BOOL_FALSE		((unsigned)0)

#define BOOL_TRUE		((unsigned)1)

#define BOOL_UNKNOWN		((unsigned)2)

#define BOOL_INVALID		((unsigned)3)

#define BOOL_VALUE(C)		((C)? BOOL_TRUE : BOOL_FALSE)

#define BOOL_NEGATE(C)		((C)? BOOL_FALSE : BOOL_TRUE)

/*

    LITERAL BASE AND SUFFIX VALUES

    These values are used to identify the various bases and suffixes for

    integer literals.

*/

#define BASE_DECIMAL		0

#define BASE_OCTAL		1

#define BASE_HEXADECIMAL	2

#define BASE_NO			3

#define SUFFIX_NONE		0

#define SUFFIX_U		1

#define SUFFIX_L		2

#define SUFFIX_UL		3

#define SUFFIX_LL		4

#define SUFFIX_ULL		5

#define SUFFIX_NO		6

#define SUFFIX(U, L)		(2 * (L) + (U))

#endif