hackm2pp.mod

(*$Copyright 1988 by Olsen & Associates (O&A), Zurich, Switzerland.

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USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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******************)

MODULE hackm2pp;
(*
 * Hack front end of M2PParser and M2PScanner for porting purposes.
 *
 * True variables are hard-coded so you don't need ProgArgs or
 * ProgEnviron.  The input and output are defined by the module
 * HackTextIO which is a hacked up version of the normal TextIO.
 *)
IMPORT
    M2PParser,
    M2PScanner,
    HackNameLists,
    HackTextIO;

PROCEDURE Process( 
    input      : HackTextIO.Object;
    output     : HackTextIO.Object;
    variables  : HackNameLists.Object 
    )          : BOOLEAN;

    VAR
	result    : BOOLEAN;
	processedObject: M2PScanner.Object;

    BEGIN (* Process *)

        M2PScanner.Open( processedObject, input, output, 
			 M2PScanner.stripOff );

	result := M2PParser.Parse( processedObject, variables );
 
	result := M2PScanner.Close( processedObject ) AND result;

	RETURN result;

    END Process;

VAR
    variables : HackNameLists.Object;
BEGIN (* hackm2pp *)

    HackNameLists.Create( variables, HackNameLists.forwardSorted,
		      HackNameLists.caseSensitive );
    HackNameLists.Insert( variables, "Assert", HackNameLists.DONTCARE );
    HackNameLists.Insert( variables, "Debug", HackNameLists.DONTCARE );
    HackNameLists.Insert( variables, "SysTypesCheck", HackNameLists.DONTCARE );
    HackNameLists.Insert( variables, "SunOS", HackNameLists.DONTCARE );
    HackNameLists.Insert( variables, "SunM2", HackNameLists.DONTCARE );
    HackNameLists.Insert( variables, "SunArch", HackNameLists.DONTCARE );
    HackNameLists.Insert( variables, "BigEndian", HackNameLists.DONTCARE );

    IF NOT Process( HackTextIO.GetInput(), HackTextIO.GetOutput(), variables ) 
      THEN HALT;
    END;

END hackm2pp.