Copyright 1996-2003 John D. Polstra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* This product includes software developed by John D. Polstra.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: FileInfo.m3.html,v 1.3 2010-04-29 17:19:53 wagner Exp $
MODULE FileInfo;
IMPORT SupMisc, Text;
VAR (*CONST*)
HugeText := Text.FromChars( ARRAY [0..15] OF CHAR{ LAST(CHAR), .. } );
Assumed to compare greater than any pathname component we might encounter.
PROCEDURE Compare(a, b: T): [-1..1] =
VAR
aName := a.name;
bName := b.name;
BEGIN
IF a.type = Type.DirUp THEN
aName := SupMisc.CatPath(aName, HugeText);
END;
IF b.type = Type.DirUp THEN
bName := SupMisc.CatPath(bName, HugeText);
END;
RETURN SupMisc.PathCompare(aName, bName);
END Compare;
PROCEDURE Equal(a, b: T): BOOLEAN =
BEGIN
RETURN Text.Equal(a.name, b.name)
AND (a.type = Type.DirUp) = (b.type = Type.DirUp);
END Equal;
PROCEDURE IsDir(fi: T): BOOLEAN =
BEGIN
RETURN fi.type = Type.DirDown OR fi.type = Type.DirUp;
END IsDir;
BEGIN
END FileInfo.