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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 LITERAL_INCLUDED
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#define LITERAL_INCLUDED
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/*
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LITERAL CONSTRUCTION DECLARATIONS
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The routines in this module are concerned with the construction of
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integer, floating-point, character, string and boolean literal
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expressions.
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*/
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extern EXP make_literal_exp PROTO_S ( ( string, int *, int ) ) ;
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extern EXP make_bool_exp PROTO_S ( ( unsigned, unsigned ) ) ;
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extern EXP make_string_exp PROTO_S ( ( STRING ) ) ;
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extern int is_zero_float PROTO_S ( ( FLOAT ) ) ;
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extern int eq_float_lit PROTO_S ( ( FLOAT, FLOAT ) ) ;
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extern int eq_string_lit PROTO_S ( ( STRING, STRING ) ) ;
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extern unsigned test_bool_exp PROTO_S ( ( EXP ) ) ;
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extern unsigned long eval_line_digits PROTO_S ( ( string, unsigned * ) ) ;
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extern unsigned long get_multi_char PROTO_S ( ( string, int * ) ) ;
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extern unsigned long get_string_char PROTO_S ( ( STRING, int * ) ) ;
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extern void add_multi_char PROTO_S ( ( string, unsigned long, int ) ) ;
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extern unsigned long eval_unicode PROTO_S ( ( int, unsigned, int *, string *, ERROR * ) ) ;
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extern TYPE find_literal_type PROTO_S ( ( NAT, int, int, string, int * ) ) ;
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extern TYPE find_char_type PROTO_S ( ( NAT ) ) ;
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extern NAT round_float_lit PROTO_S ( ( FLOAT, RMODE ) ) ;
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extern STRING new_string_lit PROTO_S ( ( string, string, int ) ) ;
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extern STRING concat_string_lit PROTO_S ( ( STRING, STRING ) ) ;
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extern STRING share_string_lit PROTO_S ( ( STRING ) ) ;
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extern NAT eval_char_lit PROTO_S ( ( STRING ) ) ;
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extern int get_char_value PROTO_S ( ( EXP ) ) ;
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extern void begin_literal PROTO_S ( ( int, int ) ) ;
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extern void add_range_literal PROTO_S ( ( EXP, int ) ) ;
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extern void add_type_literal PROTO_S ( ( TYPE ) ) ;
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extern void add_token_literal PROTO_S ( ( IDENTIFIER, unsigned ) ) ;
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extern void set_string_qual PROTO_S ( ( CV_SPEC ) ) ;
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extern void set_escape PROTO_S ( ( EXP, EXP ) ) ;
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extern void set_char_lit PROTO_S ( ( TYPE ) ) ;
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extern void init_literal PROTO_S ( ( void ) ) ;
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extern unsigned char digit_values [] ;
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extern unsigned char escape_sequences [] ;
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extern RMODE crt_round_mode ;
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extern CV_SPEC cv_string ;
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/*
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STRING TYPES
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The values STRING_* form a bitfield which is used to identify the
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various types of string literals. The values CHAR_* are used to
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identify the various types of character in multibyte strings.
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*/
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#define STRING_NONE ( ( unsigned ) 0x00 )
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#define STRING_CHAR ( ( unsigned ) 0x01 )
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#define STRING_WIDE ( ( unsigned ) 0x02 )
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#define STRING_MULTI ( ( unsigned ) 0x04 )
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#define STRING_FAT ( ( unsigned ) 0x08 )
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#define CHAR_SIMPLE 0
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#define CHAR_ASCII 1
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#define CHAR_OCTAL 2
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#define CHAR_HEX 3
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#define CHAR_UNI4 4
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#define CHAR_UNI8 5
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#define CHAR_NONE 6
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#define MULTI_WIDTH 5
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/*
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BOOLEAN VALUES
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These values give the boolean values, true and false, plus a third
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value indicating an indeterminate boolean. A fourth error value is
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also given.
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*/
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#define BOOL_FALSE ( ( unsigned ) 0 )
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#define BOOL_TRUE ( ( unsigned ) 1 )
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#define BOOL_UNKNOWN ( ( unsigned ) 2 )
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#define BOOL_INVALID ( ( unsigned ) 3 )
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#define BOOL_VALUE( C ) ( ( C ) ? BOOL_TRUE : BOOL_FALSE )
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#define BOOL_NEGATE( C ) ( ( C ) ? BOOL_FALSE : BOOL_TRUE )
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/*
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LITERAL BASE AND SUFFIX VALUES
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These values are used to identify the various bases and suffixes for
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integer literals.
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*/
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#define BASE_DECIMAL 0
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#define BASE_OCTAL 1
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#define BASE_HEXADECIMAL 2
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#define BASE_NO 3
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#define SUFFIX_NONE 0
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#define SUFFIX_U 1
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#define SUFFIX_L 2
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#define SUFFIX_UL 3
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#define SUFFIX_LL 4
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#define SUFFIX_ULL 5
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#define SUFFIX_NO 6
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#define SUFFIX( U, L ) ( 2 * ( L ) + ( U ) )
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#endif
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