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| 11 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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| 13 | <meta http-equiv="Content-Language" content="en-us">
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| 15 | <meta name="GENERATOR" content="Microsoft FrontPage 4.0">
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| 17 | <meta name="ProgId" content="FrontPage.Editor.Document">
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| 18 |
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| 19 | <link rel="stylesheet" href="http://www.unicode.org/unicode.css" type="text/css">
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| 20 |
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| 21 | <title>Unicode Character Database</title>
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| 22 |
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| 23 | </head>
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| 24 |
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| 25 |
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| 26 |
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| 27 | <body>
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| 28 |
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| 29 |
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| 30 |
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| 31 | <h1>UNICODE CHARACTER DATABASE<br>
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| 32 | Version 3.0.0</h1>
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| 33 |
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| 34 | <table border="1" cellspacing="2" cellpadding="0" height="87" width="100%">
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| 35 |
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| 36 | <tr>
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| 37 |
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| 38 | <td valign="TOP" width="144">Revision</td>
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| 39 |
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| 40 | <td valign="TOP">3.0.0</td>
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| 41 |
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| 42 | </tr>
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| 43 |
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| 44 | <tr>
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| 45 |
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| 46 | <td valign="TOP" width="144">Authors</td>
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| 47 |
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| 48 | <td valign="TOP">Mark Davis and Ken Whistler</td>
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| 49 |
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| 50 | </tr>
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| 51 |
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| 52 | <tr>
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| 53 |
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| 54 | <td valign="TOP" width="144">Date</td>
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| 55 |
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| 56 | <td valign="TOP">1999-09-11</td>
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| 57 |
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| 58 | </tr>
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| 59 |
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| 60 | <tr>
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| 61 |
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| 62 | <td valign="TOP" width="144">This Version</td>
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| 63 |
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| 64 | <td valign="TOP"><a href="ftp://ftp.unicode.org/Public/3.0-Update/UnicodeCharacterDatabase-3.0.0.html">ftp://ftp.unicode.org/Public/3.0-Update/UnicodeCharacterDatabase-3.0.0.html</a></td>
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| 65 |
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| 66 | </tr>
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| 67 |
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| 68 | <tr>
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| 69 |
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| 70 | <td valign="TOP" width="144">Previous Version</td>
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| 71 |
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| 72 | <td valign="TOP">n/a</td>
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| 73 |
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| 74 | </tr>
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| 75 |
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| 76 | <tr>
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| 77 |
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| 78 | <td valign="TOP" width="144">Latest Version</td>
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| 79 |
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| 80 | <td valign="TOP"><a href="ftp://ftp.unicode.org/Public/3.0-Update/UnicodeCharacterDatabase-3.0.0.html">ftp://ftp.unicode.org/Public/3.0-Update/UnicodeCharacterDatabase-3.0.0.html</a></td>
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| 81 |
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| 82 | </tr>
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| 83 |
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| 84 | </table>
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| 85 |
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| 86 | <p align="center">Copyright © 1995-1999 Unicode, Inc. All Rights reserved.</p>
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| 87 |
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| 88 | <h2>Disclaimer</h2>
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| 89 |
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| 90 | <p>The Unicode Character Database is provided as is by Unicode, Inc. No claims
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| 91 |
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| 92 | are made as to fitness for any particular purpose. No warranties of any kind are
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| 93 |
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| 94 | expressed or implied. The recipient agrees to determine applicability of
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| 95 |
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| 96 | information provided. If this file has been purchased on magnetic or optical
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| 97 |
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| 98 | media from Unicode, Inc., the sole remedy for any claim will be exchange of
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| 99 |
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| 100 | defective media within 90 days of receipt.</p>
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| 101 |
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| 102 | <p>This disclaimer is applicable for all other data files accompanying the
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| 103 |
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| 104 | Unicode Character Database, some of which have been compiled by the Unicode
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| 105 |
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| 106 | Consortium, and some of which have been supplied by other sources.</p>
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| 107 |
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| 108 | <h2>Limitations on Rights to Redistribute This Data</h2>
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| 109 |
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| 110 | <p>Recipient is granted the right to make copies in any form for internal
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| 111 |
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| 112 | distribution and to freely use the information supplied in the creation of
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| 113 |
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| 114 | products supporting the Unicode<sup>TM</sup> Standard. The files in the Unicode
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| 115 |
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| 116 | Character Database can be redistributed to third parties or other organizations
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| 117 |
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| 118 | (whether for profit or not) as long as this notice and the disclaimer notice are
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| 119 |
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| 120 | retained. Information can be extracted from these files and used in
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| 121 |
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| 122 | documentation or programs, as long as there is an accompanying notice indicating
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| 123 |
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| 124 | the source.</p>
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| 125 |
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| 126 | <h2>Introduction</h2>
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| 127 |
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| 128 | <p>The Unicode Character Database is a set of files that define the Unicode
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| 129 |
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| 130 | character properties and internal mappings. For more information about character
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| 131 |
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| 132 | properties and mappings, see <i><a href="http://www.unicode.org/unicode/uni2book/u2.html">The
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| 133 |
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| 134 | Unicode Standard</a></i>.</p>
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| 135 |
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| 136 | <p>The Unicode Character Database has been updated to reflect Version 3.0 of the
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| 137 |
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| 138 | Unicode Standard, with many characters added to those published in Version 2.0.
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| 139 |
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| 140 | A number of corrections have also been made to case mappings or other errors in
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| 141 |
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| 142 | the database noted since the publication of Version 2.0. Normative bidirectional
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| 143 |
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| 144 | properties have also been modified to reflect decisions of the Unicode Technical
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| 145 |
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| 146 | Committee.</p>
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| 147 |
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| 148 | <p>For more information on versions of the Unicode Standard and how to reference
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| 149 |
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| 150 | them, see <a href="http://www.unicode.org/unicode/standard/versions/">http://www.unicode.org/unicode/standard/versions/</a>.</p>
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| 151 |
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| 152 | <h2>Conformance</h2>
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| 153 |
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| 154 | <p>Character properties may be either normative or informative. <i>Normative</i>
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| 155 |
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| 156 | means that implementations that claim conformance to the Unicode Standard (at a
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| 157 |
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| 158 | particular version) and which make use of a particular property or field must
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| 159 |
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| 160 | follow the specifications of the standard for that property or field in order to
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| 161 |
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| 162 | be conformant. The term <i>normative</i> when applied to a property or field of
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| 163 |
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| 164 | the Unicode Character Database, does <i>not</i> mean that the value of that
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| 165 |
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| 166 | field will never change. Corrections and extensions to the standard in the
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| 167 |
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| 168 | future may require minor changes to normative values, even though the Unicode
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| 169 |
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| 170 | Technical Committee strives to minimize such changes. An<i> informative </i>property
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| 171 |
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| 172 | or field is strongly recommended, but a conformant implementation is free to use
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| 173 |
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| 174 | or change such values as it may require while still being conformant to the
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| 175 |
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| 176 | standard. Particular implementations may choose to override the properties and
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| 177 |
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| 178 | mappings that are not normative. In that case, it is up to the implementer to
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| 179 |
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| 180 | establish a protocol to convey that information.</p>
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| 181 |
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| 182 | <h2>Files</h2>
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| 183 |
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| 184 | <p>The following summarizes the files in the Unicode Character Database. For
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| 185 |
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| 186 | more information about these files, see the referenced technical report or
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| 187 |
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| 188 | section of Unicode Standard, Version 3.0.</p>
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| 189 |
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| 190 | <p><b>UnicodeData.txt (Chapter 4)</b>
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| 191 |
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| 192 | <ul>
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| 193 |
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| 194 | <li>The main file in the Unicode Character Database.</li>
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| 195 |
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| 196 | <li>For detailed information on the format, see <a href="UnicodeData.html">UnicodeData.html</a>.
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| 197 |
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| 198 | This file also characterizes which properties are normative and which are
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| 199 |
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| 200 | informative.</li>
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| 201 |
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| 202 | </ul>
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| 203 |
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| 204 | <p><b>PropList.txt (Chapter 4)</b>
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| 205 |
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| 206 | <ul>
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| 207 |
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| 208 | <li>Additional informative properties list: <i>Alphabetic, Ideographic,</i>
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| 209 |
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| 210 | and <i>Mathematical</i>, among others.</li>
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| 211 |
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| 212 | </ul>
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| 213 |
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| 214 | <p><b>SpecialCasing.txt (Chapter 4)</b>
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| 215 |
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| 216 | <ul>
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| 217 |
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| 218 | <li>List of informative special casing properties, including one-to-many
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| 219 |
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| 220 | mappings such as SHARP S => "SS", and locale-specific mappings,
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| 221 |
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| 222 | such as for Turkish <i>dotless i</i>.</li>
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| 223 |
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| 224 | </ul>
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| 225 |
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| 226 | <p><b>Blocks.txt (Chapter 14)</b>
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| 227 |
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| 228 | <ul>
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| 229 |
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| 230 | <li>List of normative block names.</li>
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| 231 |
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| 232 | </ul>
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| 233 |
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| 234 | <p><b>Jamo.txt (Chapter 4)</b>
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| 235 |
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| 236 | <ul>
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| 237 |
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| 238 | <li>List of normative Jamo short names, used in deriving HANGUL SYLLABLE names
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| 239 |
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| 240 | algorithmically.</li>
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| 241 |
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| 242 | </ul>
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| 243 |
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| 244 | <p><b>ArabicShaping.txt (Section 8.2)</b>
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| 245 |
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| 246 | <ul>
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| 247 |
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| 248 | <li>Basic Arabic and Syriac character shaping properties, such as initial,
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| 249 |
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| 250 | medial and final shapes. These properties are normative for minimal shaping
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| 251 |
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| 252 | of Arabic and Syriac. </li>
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| 253 |
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| 254 | </ul>
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| 255 |
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| 256 | <p><b>NamesList.txt (Chapter 14)</b>
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| 257 |
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| 258 | <ul>
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| 259 |
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| 260 | <li>This file duplicates some of the material in the UnicodeData file, and
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| 261 |
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| 262 | adds informative annotations uses in the character charts, as printed in the
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| 263 |
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| 264 | Unicode Standard. </li>
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| 265 |
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| 266 | <li><b>Note: </b>The information in NamesList.txt and Index.txt files matches
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| 267 |
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| 268 | the appropriate version of the book. Changes in the Unicode Character
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| 269 |
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| 270 | Database since then may not be reflected in these files, since they are
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| 271 |
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| 272 | primarily of archival interest.</li>
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| 273 |
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| 274 | </ul>
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| 275 |
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| 276 | <p><b>Index.txt (Chapter 14)</b>
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| 277 |
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| 278 | <ul>
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| 279 |
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| 280 | <li>Informative index to Unicode characters, as printed in the Unicode
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| 281 |
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| 282 | Standard</li>
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| 283 |
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| 284 | <li><b>Note: </b>The information in NamesList.txt and Index.txt files matches
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| 285 |
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| 286 | the appropriate version of the book. Changes in the Unicode Character
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| 287 |
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| 288 | Database since then may not be reflected in these files, since they are
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| 289 |
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| 290 | primarily of archival interest.</li>
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| 291 |
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| 292 | </ul>
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| 293 |
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| 294 | <p><b>CompositionExclusions.txt (<a href="http://www.unicode.org/unicode/reports/tr15/">UTR#15
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| 295 |
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| 296 | Unicode Normalization Forms</a>)</b>
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| 297 |
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| 298 | <ul>
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| 299 |
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| 300 | <li>Normative properties for normalization.</li>
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| 301 |
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| 302 | </ul>
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| 303 |
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| 304 | <p><b>LineBreak.txt (<a href="http://www.unicode.org/unicode/reports/tr14/">UTR
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| 305 |
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| 306 | #14: Line Breaking Properties</a>)</b>
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| 307 |
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| 308 | <ul>
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| 309 |
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| 310 | <li>Normative and informative properties for line breaking. To see which
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| 311 |
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| 312 | properties are informative and which are normative, consult UTR#14.</li>
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| 313 |
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| 314 | </ul>
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| 315 |
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| 316 | <p><b>EastAsianWidth.txt (<a href="http://www.unicode.org/unicode/reports/tr11/">UTR
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| 317 |
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| 318 | #11: East Asian Character Width</a>)</b>
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| 319 |
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| 320 | <ul>
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| 321 |
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| 322 | <li>Informative properties for determining the choice of wide vs. narrow
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| 323 |
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| 324 | glyphs in East Asian contexts.</li>
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| 325 |
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| 326 | </ul>
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| 327 |
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| 328 | <p><b>diffXvY.txt</b>
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| 329 |
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| 330 | <ul>
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| 331 |
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| 332 | <li>Mechanically-generated informative files containing accumulated
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| 333 |
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| 334 | differences between successive versions of UnicodeData.txt</li>
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| 335 |
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| 336 | </ul>
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| 337 |
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| 338 |
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| 339 |
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| 340 | </body>
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| 341 |
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| 342 |
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| 343 |
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| 344 | </html>
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| 345 |
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