Subversion Repositories tendra.SVN

/*

    		 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.

*/

/*** c-lexer.h --- SID C lexical analyser.

 *

 ** Author: Steve Folkes <smf@hermes.mod.uk>

 *

 *** Commentary:

 *

 * See the file "c-lexer.c" for details.

 *

 *** Change Log:

 * $Log: c-lexer.h,v $

 * Revision 1.1.1.1  1998/01/17  15:57:42  release

 * First version to be checked into rolling release.

 *

 * Revision 1.2  1994/12/15  09:55:58  smf

 * Brought into line with OSSG C Coding Standards Document, as per

 * "CR94_178.sid+tld-update".

 *

 * Revision 1.1.1.1  1994/07/25  16:04:14  smf

 * Initial import of SID 1.8 non shared files.

 *

**/

/****************************************************************************/

#ifndef H_C_LEXER

#define H_C_LEXER

#include "os-interface.h"

#include "c-code.h"

#include "dstring.h"

#include "istream.h"

/**** Note:

 *

 * It is important that any changes to this enumerated type declaration are

 * reflected in the "c-parser.sid" file.

**/

#ifdef FS_NO_ENUM

typedef int CTokenT, *CTokenP;

#define C_TOK_BLT_PREFIXES		(0)

#define C_TOK_BLT_MAPS			(1)

#define C_TOK_BLT_ASSIGNMENTS		(2)

#define C_TOK_BLT_TERMINALS		(3)

#define C_TOK_BLT_HEADER		(4)

#define C_TOK_BLT_ACTIONS		(5)

#define C_TOK_BLT_TRAILER		(6)

#define C_TOK_BLT_RESULT_ASSIGN		(7)

#define C_TOK_SID_IDENTIFIER		(8)

#define C_TOK_C_IDENTIFIER		(9)

#define C_TOK_SEPARATOR			(10)

#define C_TOK_TYPEMARK			(11)

#define C_TOK_TERMINATOR		(12)

#define C_TOK_BEGIN_ACTION		(13)

#define C_TOK_DEFINE			(14)

#define C_TOK_END_ACTION		(15)

#define C_TOK_CODE			(16)

#define C_TOK_ARROW			(17)

#define C_TOK_OPEN_TUPLE		(18)

#define C_TOK_CLOSE_TUPLE		(19)

#define C_TOK_BLT_PARAM_ASSIGN		(20)

#define C_TOK_REFERENCE			(21)

#define C_TOK_EOF			(22)

#define C_TOK_ERROR			(23)

#else

typedef enum {

    C_TOK_BLT_PREFIXES,

    C_TOK_BLT_MAPS,

    C_TOK_BLT_ASSIGNMENTS,

    C_TOK_BLT_TERMINALS,

    C_TOK_BLT_HEADER,

    C_TOK_BLT_ACTIONS,

    C_TOK_BLT_TRAILER,

    C_TOK_BLT_RESULT_ASSIGN,

    C_TOK_SID_IDENTIFIER,

    C_TOK_C_IDENTIFIER,

    C_TOK_SEPARATOR,

    C_TOK_TYPEMARK,

    C_TOK_TERMINATOR,

    C_TOK_BEGIN_ACTION,

    C_TOK_DEFINE,

    C_TOK_END_ACTION,

    C_TOK_CODE,

    C_TOK_ARROW,

    C_TOK_OPEN_TUPLE,

    C_TOK_CLOSE_TUPLE,

    C_TOK_BLT_PARAM_ASSIGN,

    C_TOK_REFERENCE,

    C_TOK_EOF,

    C_TOK_ERROR

} CTokenT, *CTokenP;

#endif /* defined (FS_NO_ENUM) */

typedef struct CLexT {

    CTokenT			t;

    union {

	NStringT		string;

	CCodeP			code;

    } u;

} CLexT, *CLexP;

typedef struct CLexerStreamT {

    IStreamT			istream;

    CLexT			token;

    CTokenT			saved_terminal;

} CLexerStreamT, *CLexerStreamP;

/*--------------------------------------------------------------------------*/

extern void			c_lexer_init

	PROTO_S ((CLexerStreamP, IStreamP));

extern void			c_lexer_close

	PROTO_S ((CLexerStreamP));

extern CStringP			c_lexer_stream_name

	PROTO_S ((CLexerStreamP));

extern unsigned			c_lexer_stream_line

	PROTO_S ((CLexerStreamP));

extern CTokenT			c_lexer_get_terminal

	PROTO_S ((CLexerStreamP));

extern void			c_lexer_next_token

	PROTO_S ((CLexerStreamP));

extern NStringP			c_lexer_string_value

	PROTO_S ((CLexerStreamP));

extern CCodeP			c_lexer_code_value

	PROTO_S ((CLexerStreamP));

extern void			c_lexer_save_terminal

	PROTO_S ((CLexerStreamP, CTokenT));

extern void			c_lexer_restore_terminal

	PROTO_S ((CLexerStreamP));

/*--------------------------------------------------------------------------*/

#ifdef FS_FAST

#define c_lexer_close(s) (istream_close (&((s)->istream)))

#define c_lexer_stream_name(s) (istream_name (&((s)->istream)))

#define c_lexer_stream_line(s) (istream_line (&((s)->istream)))

#define c_lexer_get_terminal(s) ((s)->token.t)

#define c_lexer_string_value(s) (&((s)->token.u.string))

#define c_lexer_code_value(s) ((s)->token.u.code)

#endif /* defined (FS_FAST) */

#endif /* !defined (H_C_LEXER) */

/*

 * Local variables(smf):

 * eval: (include::add-path-entry "../os-interface" "../library")

 * eval: (include::add-path-entry "../transforms" "../output")

 * eval: (include::add-path-entry "../c-output" "../generated")

 * end:

**/