51 lines
2.9 KiB
HTML
51 lines
2.9 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Surrogate characters" />
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<meta name="abstract" content="Some characters do not have a valid representation in Unicode." />
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<meta name="description" content="Some characters do not have a valid representation in Unicode." />
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<meta name="DC.Relation" scheme="URI" content="rzaaxobjrenamed.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzaaxsurrogate" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Surrogate characters</title>
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</head>
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<body id="rzaaxsurrogate"><a name="rzaaxsurrogate"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Surrogate characters</h1>
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<div><p>Some characters do not have a valid representation in Unicode. </p>
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<div class="section"><p>These characters have some special values; they are made up of
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two Unicode characters in two specific ranges such that the first Unicode
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character is in one range (for example 0xD800-0xD8FF) and the second Unicode
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character is in the second range (for example 0xDC00-0xDCFF). This is called
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a surrogate pair.</p>
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<p>If one of the Unicode characters are missing or if
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they are out of order, (only a partial character), it is an invalid name.
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Names of this type have been allowed in *TYPE1 directories, but are not allowed
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in *TYPE2 directories. In order for the conversion function to continue,
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the name is changed before the object is linked into the *TYPE2 directory
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if a name containing one of these invalid names is found.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaaxobjrenamed.htm" title="*TYPE2 directories require the link names to be valid UTF-16 names.">Objects renamed</a></div>
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</div>
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</div>
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</body>
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</html> |