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346 lines
8.8 KiB
HTML
346 lines
8.8 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
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"http://www.w3.org/TR/REC-html40/loose.dtd">
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<html>
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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 http-equiv="Content-Language" content="en-us">
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<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
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<meta name="ProgId" content="FrontPage.Editor.Document">
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<link rel="stylesheet" href="http://www.unicode.org/unicode.css" type="text/css">
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<title>Unicode Character Database</title>
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</head>
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<body>
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<h1>UNICODE CHARACTER DATABASE<br>
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Version 3.0.0</h1>
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<table border="1" cellspacing="2" cellpadding="0" height="87" width="100%">
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<tr>
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<td valign="TOP" width="144">Revision</td>
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<td valign="TOP">3.0.0</td>
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</tr>
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<tr>
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<td valign="TOP" width="144">Authors</td>
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<td valign="TOP">Mark Davis and Ken Whistler</td>
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</tr>
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<tr>
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<td valign="TOP" width="144">Date</td>
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<td valign="TOP">1999-09-11</td>
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</tr>
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<tr>
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<td valign="TOP" width="144">This Version</td>
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<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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</tr>
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<tr>
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<td valign="TOP" width="144">Previous Version</td>
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<td valign="TOP">n/a</td>
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</tr>
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<tr>
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<td valign="TOP" width="144">Latest Version</td>
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<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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</tr>
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</table>
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<p align="center">Copyright © 1995-1999 Unicode, Inc. All Rights reserved.</p>
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<h2>Disclaimer</h2>
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<p>The Unicode Character Database is provided as is by Unicode, Inc. No claims
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are made as to fitness for any particular purpose. No warranties of any kind are
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expressed or implied. The recipient agrees to determine applicability of
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information provided. If this file has been purchased on magnetic or optical
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media from Unicode, Inc., the sole remedy for any claim will be exchange of
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defective media within 90 days of receipt.</p>
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<p>This disclaimer is applicable for all other data files accompanying the
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Unicode Character Database, some of which have been compiled by the Unicode
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Consortium, and some of which have been supplied by other sources.</p>
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<h2>Limitations on Rights to Redistribute This Data</h2>
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<p>Recipient is granted the right to make copies in any form for internal
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distribution and to freely use the information supplied in the creation of
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products supporting the Unicode<sup>TM</sup> Standard. The files in the Unicode
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Character Database can be redistributed to third parties or other organizations
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(whether for profit or not) as long as this notice and the disclaimer notice are
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retained. Information can be extracted from these files and used in
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documentation or programs, as long as there is an accompanying notice indicating
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the source.</p>
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<h2>Introduction</h2>
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<p>The Unicode Character Database is a set of files that define the Unicode
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character properties and internal mappings. For more information about character
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properties and mappings, see <i><a href="http://www.unicode.org/unicode/uni2book/u2.html">The
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Unicode Standard</a></i>.</p>
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<p>The Unicode Character Database has been updated to reflect Version 3.0 of the
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Unicode Standard, with many characters added to those published in Version 2.0.
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A number of corrections have also been made to case mappings or other errors in
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the database noted since the publication of Version 2.0. Normative bidirectional
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properties have also been modified to reflect decisions of the Unicode Technical
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Committee.</p>
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<p>For more information on versions of the Unicode Standard and how to reference
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them, see <a href="http://www.unicode.org/unicode/standard/versions/">http://www.unicode.org/unicode/standard/versions/</a>.</p>
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<h2>Conformance</h2>
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<p>Character properties may be either normative or informative. <i>Normative</i>
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means that implementations that claim conformance to the Unicode Standard (at a
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particular version) and which make use of a particular property or field must
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follow the specifications of the standard for that property or field in order to
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be conformant. The term <i>normative</i> when applied to a property or field of
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the Unicode Character Database, does <i>not</i> mean that the value of that
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field will never change. Corrections and extensions to the standard in the
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future may require minor changes to normative values, even though the Unicode
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Technical Committee strives to minimize such changes. An<i> informative </i>property
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or field is strongly recommended, but a conformant implementation is free to use
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or change such values as it may require while still being conformant to the
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standard. Particular implementations may choose to override the properties and
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mappings that are not normative. In that case, it is up to the implementer to
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establish a protocol to convey that information.</p>
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<h2>Files</h2>
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<p>The following summarizes the files in the Unicode Character Database. For
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more information about these files, see the referenced technical report or
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section of Unicode Standard, Version 3.0.</p>
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<p><b>UnicodeData.txt (Chapter 4)</b>
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<ul>
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<li>The main file in the Unicode Character Database.</li>
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<li>For detailed information on the format, see <a href="UnicodeData.html">UnicodeData.html</a>.
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This file also characterizes which properties are normative and which are
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informative.</li>
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</ul>
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<p><b>PropList.txt (Chapter 4)</b>
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<ul>
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<li>Additional informative properties list: <i>Alphabetic, Ideographic,</i>
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and <i>Mathematical</i>, among others.</li>
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</ul>
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<p><b>SpecialCasing.txt (Chapter 4)</b>
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<ul>
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<li>List of informative special casing properties, including one-to-many
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mappings such as SHARP S => "SS", and locale-specific mappings,
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such as for Turkish <i>dotless i</i>.</li>
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</ul>
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<p><b>Blocks.txt (Chapter 14)</b>
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<ul>
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<li>List of normative block names.</li>
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</ul>
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<p><b>Jamo.txt (Chapter 4)</b>
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<ul>
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<li>List of normative Jamo short names, used in deriving HANGUL SYLLABLE names
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algorithmically.</li>
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</ul>
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<p><b>ArabicShaping.txt (Section 8.2)</b>
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<ul>
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<li>Basic Arabic and Syriac character shaping properties, such as initial,
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medial and final shapes. These properties are normative for minimal shaping
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of Arabic and Syriac. </li>
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</ul>
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<p><b>NamesList.txt (Chapter 14)</b>
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<ul>
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<li>This file duplicates some of the material in the UnicodeData file, and
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adds informative annotations uses in the character charts, as printed in the
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Unicode Standard. </li>
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<li><b>Note: </b>The information in NamesList.txt and Index.txt files matches
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the appropriate version of the book. Changes in the Unicode Character
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Database since then may not be reflected in these files, since they are
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primarily of archival interest.</li>
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</ul>
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<p><b>Index.txt (Chapter 14)</b>
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<ul>
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<li>Informative index to Unicode characters, as printed in the Unicode
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Standard</li>
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<li><b>Note: </b>The information in NamesList.txt and Index.txt files matches
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the appropriate version of the book. Changes in the Unicode Character
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Database since then may not be reflected in these files, since they are
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primarily of archival interest.</li>
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</ul>
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<p><b>CompositionExclusions.txt (<a href="http://www.unicode.org/unicode/reports/tr15/">UTR#15
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Unicode Normalization Forms</a>)</b>
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<ul>
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<li>Normative properties for normalization.</li>
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</ul>
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<p><b>LineBreak.txt (<a href="http://www.unicode.org/unicode/reports/tr14/">UTR
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#14: Line Breaking Properties</a>)</b>
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<ul>
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<li>Normative and informative properties for line breaking. To see which
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properties are informative and which are normative, consult UTR#14.</li>
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</ul>
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<p><b>EastAsianWidth.txt (<a href="http://www.unicode.org/unicode/reports/tr11/">UTR
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#11: East Asian Character Width</a>)</b>
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<ul>
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<li>Informative properties for determining the choice of wide vs. narrow
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glyphs in East Asian contexts.</li>
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</ul>
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<p><b>diffXvY.txt</b>
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<ul>
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<li>Mechanically-generated informative files containing accumulated
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differences between successive versions of UnicodeData.txt</li>
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</ul>
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</body>
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</html>
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