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List:       icu
Subject:    ICU4J Proposal: UCharacterIterator and UForwardCharacterIterator
From:       "Raghuram Viswanadha" <ram () jtcsv ! com>
Date:       2002-10-31 20:38:33
[Download RAW message or body]

Proposal to add UCharacterIterator and UForwardCharacterIterator for =
code point iteration.

Expires: 11/7/2002

Motivation: java.text.CharacterIterator performs only code unit =
iteration and is limited to the BMP. This iterator is based on =
pre-increment semantics for next() operation and pre-decrement semantics =
for previous() opreation. This makes the iterator slow for certain =
operations. A new API is needed with post-increment semantics for next() =
operation and pre-decrement semantics for previous() operation, for =
performance reasons, which is capable of code unit and code point =
iteration.

For more information please see the Javadoc

UForwardCharacterIterator: =
http://www-124.ibm.com/icu/dropbox/UForwardCharacterIterator.html

UCharacterIterator: =
http://www-124.ibm.com/icu/dropbox/UCharacterIterator.html


Regards,

Ram Viswanadha
ICU Team
GCoC San Jose
IBM


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<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
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<DIV><FONT face=Arial size=2>Proposal to add UCharacterIterator and 
UForwardCharacterIterator for code point iteration.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Expires: 11/7/2002</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Motivation:&nbsp;java.text.CharacterIterator 
performs only code unit iteration and is limited&nbsp;to the BMP. This iterator 
is based on pre-increment semantics for next() operation and pre-decrement 
semantics for previous() opreation. This makes the iterator slow for certain 
operations. A new API is needed with post-increment semantics for next() 
operation and pre-decrement semantics for previous() operation, for performance 
reasons,&nbsp;which is capable of&nbsp;code unit and code&nbsp;point 
iteration.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>For more information please see the 
Javadoc</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>UForwardCharacterIterator: <A 
href="http://www-124.ibm.com/icu/dropbox/UForwardCharacterIterator.html">http://www-124.ibm.com/icu/dropbox/UForwardCharacterIterator.html</A></FONT></DIV>
 <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>UCharacterIterator: <A 
href="http://www-124.ibm.com/icu/dropbox/UCharacterIterator.html">http://www-124.ibm.com/icu/dropbox/UCharacterIterator.html</A></FONT></DIV>
 <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Regards,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Ram Viswanadha</FONT></DIV>
<DIV><FONT face=Arial size=2>ICU Team</FONT></DIV>
<DIV><FONT face=Arial size=2>GCoC San Jose</FONT></DIV>
<DIV><FONT face=Arial size=2>IBM</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV></BODY></HTML>


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