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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 LEX_INCLUDED
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#define LEX_INCLUDED
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/*
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LEXICAL ANALYSIS DECLARATIONS
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The routines in this module are concerned with the lexical analysis
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of the input, including its decomposition into preprocessing tokens
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using the routine read_token.
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*/
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extern void init_lex(void);
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extern void init_char(void);
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extern void process_file(void);
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extern IDENTIFIER make_keyword(HASHID, int, IDENTIFIER);
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extern void init_keywords(void);
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extern int read_token(void);
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extern int read_string(int, int);
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extern int peek_char(int, int *);
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extern int skip_to_end(void);
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extern unsigned long skip_white(int);
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extern void patch_white(unsigned long);
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extern int get_digraph(int);
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extern int primary_form(int);
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extern int is_white_char(unsigned long);
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extern int is_alpha_char(unsigned long);
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extern int is_legal_char(unsigned long);
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extern void set_char_lookup(int, int);
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extern void set_character(EXP, EXP);
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/*
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LEXICAL TOKEN INFORMATION
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These variables are used by read_token to hold information about the
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current lexical token.
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*/
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extern BUFFER token_buff;
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extern HASHID token_hashid;
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extern CONST char *token_names[];
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/*
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LEXICAL ANALYSIS OPTIONS
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These variables are used to configure the lexical analysis routines.
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*/
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extern int allow_trigraphs;
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extern int allow_digraphs;
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extern int allow_unicodes;
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extern int allow_multibyte;
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extern int allow_cpp_comments;
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extern int allow_dos_newline;
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extern int allow_extra_symbols;
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extern int allow_iso_keywords;
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extern int analyse_comments;
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extern unsigned long max_id_length;
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/*
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TOKEN NAME LOOK-UP
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The macro token_name is used to look up the name associated with the
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lexical token number T.
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*/
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#define token_name(T) (ustrlit(token_names[(T)]))
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/*
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WHITE-SPACE INDICATORS
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These macros are used by skip_white to indicate the form of the white-
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space characters skipped.
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*/
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#define WHITE_SPACE ((unsigned long)0x01)
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#define WHITE_NEWLINE ((unsigned long)0x02)
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#define WHITE_ESC_NEWLINE ((unsigned long)0x04)
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#define WHITE_MASK (WHITE_SPACE | WHITE_NEWLINE)
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#endif
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