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"
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COPYRIGHT (c) 1993 by Claus Gittinger
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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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63
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AbstractString subclass:#TwoByteString
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1
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'Collections-Text'
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!
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TwoByteString comment:'
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COPYRIGHT (c) 1993 by Claus Gittinger
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All Rights Reserved
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89
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'!
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1
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89
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!TwoByteString class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1993 by Claus Gittinger
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All Rights Reserved
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1
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89
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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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version
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"
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$Header: /cvs/stx/stx/libbasic/TwoByteString.st,v 1.7 1994-06-02 17:20:13 claus Exp $
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"
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!
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documentation
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"
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TwoByteStrings are like strings, but storing 16bits per character.
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The integration of them into the system is not completed ....
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"
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! !
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1
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!TwoByteString class methodsFor:'instance creation'!
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basicNew:anInteger
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"return a new empty string with anInteger characters"
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^ (super basicNew:(anInteger*2)) atAllPut:(Character space)
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! !
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!TwoByteString methodsFor:'queries'!
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basicSize
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"return the size of the receiver.
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(i.e. the number of characters in this String)"
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^ super basicSize // 2
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! !
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1
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!TwoByteString methodsFor:'accessing'!
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basicAt:index
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"return the character at position index, an Integer
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- reimplemented here since we return 16-bit characters"
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1
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|val i|
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i := (index * 2) - 1.
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"always msb first"
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val := (super basicAt:(i+1)) + ((super basicAt:i) * 256).
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^ Character value:val
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1
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!
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basicAt:index put:aCharacter
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"store the argument, aCharacter at position index, an Integer
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- reimplemented here since we store 16-bit characters"
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1
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|val i|
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val := aCharacter asciiValue.
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i := (index * 2) - 1.
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"always msb first"
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super basicAt:(i+1) put:(val bitAnd:16rFF).
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super basicAt:i put:(val // 256).
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^ aCharacter
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! !
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