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(* cflex.def provides a Modula-2 definition module for C lexical analysis.
Copyright (C) 2003-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Modula-2; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. *)
DEFINITION MODULE cflex ;
(*
Title : clex
Author : Gaius Mulley
System : GNU Modula-2
Date : Thu Jan 23 12:39:36 2003
Revision : $Version$
Description: provides a Modula-2 definition module for C lexical analysis.
*)
FROM SYSTEM IMPORT ADDRESS ;
EXPORT QUALIFIED GetToken, AdvanceToken, CError, OpenSource, CloseSource, GetLineNo,
ParsingOn, SetSearchPath, AddTypeDef ;
(*
CloseSource - provided for semantic sugar
*)
PROCEDURE CloseSource ;
(*
OpenSource - returns TRUE if file, s, can be opened and
all tokens are taken from this file.
*)
PROCEDURE OpenSource (s: ADDRESS) : BOOLEAN ;
(*
GetToken - returns the ADDRESS of the next token.
*)
PROCEDURE GetToken () : ADDRESS ;
(*
AdvanceToken - move onto the next token.
*)
PROCEDURE AdvanceToken ;
(*
GetLineNo - returns the current line number.
*)
PROCEDURE GetLineNo () : CARDINAL ;
(*
CError - displays the error message, s, after the code line and pointer
to the erroneous token.
*)
PROCEDURE CError (s: ADDRESS) ;
(*
ParsingOn - if t is FALSE then the lexical analysis will
consume all lines except when a line is one of
'#endif' or '#else' or '#if' or '#ifdef'
*)
PROCEDURE ParsingOn (t: BOOLEAN) ;
(*
SetSearchPath - reassigns the search path to newPath.
*)
PROCEDURE SetSearchPath (newPath: ADDRESS) ;
(*
AddTypeDef - adds the string, a, to the list of typedefs.
*)
PROCEDURE AddTypeDef (a: ADDRESS) ;
END cflex.
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