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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 LEX_INCLUDED
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#define LEX_INCLUDED
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/*
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PROCEDURE DECLARATIONS
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These routines and variables give the interface with the lexical
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analyser.
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*/
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extern int read_token PROTO_S ( ( void ) ) ;
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extern void preproc PROTO_S ( ( FILE *, char *, char *, char * ) ) ;
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extern void init_keywords PROTO_S ( ( void ) ) ;
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extern int input_pending ;
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extern FILE *input_file ;
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extern int crt_lex_token ;
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extern int saved_lex_token ;
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extern char *token_value ;
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/*
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PARSER MACROS
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These macros are used by the SID parser to access the lexical
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analysis routines.
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*/
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#define CURRENT_TERMINAL crt_lex_token
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#define ADVANCE_LEXER crt_lex_token = read_token ()
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#define SAVE_LEXER( T ) ( saved_lex_token = crt_lex_token,\
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crt_lex_token = ( T ) )
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#define RESTORE_LEXER ( crt_lex_token = saved_lex_token )
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#define LEX_EOF 256
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#endif
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