PCFilename.st
author Claus Gittinger <cg@exept.de>
Fri, 10 Oct 1997 23:02:12 +0200
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'From Smalltalk/X, Version:3.1.9 on 9-sep-1997 at 11:55:53 pm'                  !
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Filename subclass:#PCFilename
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	instanceVariableNames:''
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	classVariableNames:''
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	poolDictionaries:''
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	category:'OS-PC'
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!
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!PCFilename class methodsFor:'documentation'!
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copyright
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"
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 COPYRIGHT (c) 1997 by eXept Software AG
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              All Rights Reserved
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 This software is furnished under a license and may be used
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 only in accordance with the terms of that license and with the
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 inclusion of the above copyright notice.   This software may not
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 be provided or otherwise made available to, or used by, any
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 other person.  No title to or ownership of the software is
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 hereby transferred.
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"
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!
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documentation
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"
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    Filenames in Windows-NT / Win95.
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"
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! !
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!PCFilename class methodsFor:'queries'!
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isBadCharacter:aCharacter
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    "return true, if aCharacter is unallowed in a filename."
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    ('<>:"/\|' includes:aCharacter) ifTrue:[^ true].
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    ^ super isBadCharacter:aCharacter
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    "Created: 8.9.1997 / 00:14:06 / cg"
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!
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isCaseSensitive
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    "return true, if filenames are case sensitive."
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    ^ false
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!
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separator
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    "return the file/directory separator."
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     ^ $\
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     "
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      Filename concreteClass separator  
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     "
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    "Modified: 8.9.1997 / 00:18:03 / cg"
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! !
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!PCFilename methodsFor:'queries'!
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isExplicitRelative
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    "return true, if this name is an explicit relative name
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     (i.e. starts with './' or '../', to avoid path-prepending)"
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    (nameString startsWith:'.\') ifTrue:[
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	^ true
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    ].
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    (nameString startsWith:'..\') ifTrue:[
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	^ true
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    ].
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    ^ false
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!
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isVolumeAbsolute
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    "return true, if the receiver represents an absolute pathname
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     on some disk volume."
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    ^ ((nameString size >= 2) and:[(nameString at:2) == $:])
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    "Created: 7.9.1997 / 23:54:20 / cg"
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!
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localNameStringFrom:aString 
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    "ST-80 compatibility.
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     what does this do ? (used in FileNavigator-goody).
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     GUESS: does it strip off the voulume-character and initial '\' ?"
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    (aString at:2) == $: ifTrue:[
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	(aString at:3) == $\ ifTrue:[
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	    ^ aString copyFrom:4
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	].
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	^ aString copyFrom:3
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    ]. 
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    (aString at:1) == $\ ifTrue:[
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	^ aString copyFrom:1
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    ].
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    ^ aString
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!
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volume
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    "return the disc volume part of the name or an empty string.
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     This is only used with DOS filenames - on unix, an empty string is returned"
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    (nameString at:2) == $: ifTrue:[
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        ^ nameString copyTo:1
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    ].
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    ^ ''
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    "Created: 7.9.1997 / 23:58:06 / cg"
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! !
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!PCFilename class methodsFor:'documentation'!
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version
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    ^ '$Header: /cvs/stx/stx/libbasic/PCFilename.st,v 1.5 1997-10-10 21:02:12 cg Exp $'
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! !