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(* m2flex.def provides a Modula-2 definition module for m2.flex.
Copyright (C) 2015-2025 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius@glam.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 m2flex ;
FROM SYSTEM IMPORT ADDRESS ;
(*
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 ;
(*
GetLineNo - returns the current line number.
*)
PROCEDURE GetLineNo () : CARDINAL ;
(*
GetColumnNo - returns the column where the current token starts.
*)
PROCEDURE GetColumnNo () : CARDINAL ;
(*
M2Error - displays the error message, s, after the code line and pointer
to the erroneous token.
*)
PROCEDURE M2Error (s: ADDRESS) ;
(*
GetTotalLines - returns the total number of lines parsed.
*)
PROCEDURE GetTotalLines () : CARDINAL ;
END m2flex.
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