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13 | <title>Unicode Character Database</title> |
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14 | </head> |
15 | |
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16 | <body> |
17 | |
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18 | <h1>UNICODE CHARACTER DATABASE<br> |
19 | Version 3.0.1</h1> |
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20 | <table border="1" cellspacing="2" cellpadding="0" height="87" width="100%"> |
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21 | <tr> |
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22 | <td valign="TOP" width="144">Revision</td> |
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23 | <td valign="TOP">3.0.1</td> |
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24 | </tr> |
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25 | <tr> |
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26 | <td valign="TOP" width="144">Authors</td> |
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27 | <td valign="TOP">Mark Davis and Ken Whistler</td> |
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28 | </tr> |
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29 | <tr> |
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30 | <td valign="TOP" width="144">Date</td> |
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31 | <td valign="TOP">2000-08-17</td> |
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32 | </tr> |
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33 | <tr> |
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34 | <td valign="TOP" width="144">This Version</td> |
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35 | <td valign="TOP"><a |
36 | href="http://www.unicode.org/Public/3.0-Update1/UnicodeCharacterDatabase-3.0.1.html">http://www.unicode.org/Public/3.0-Update1/UnicodeCharacterDatabase-3.0.1.html</a></td> |
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37 | </tr> |
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38 | <tr> |
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39 | <td valign="TOP" width="144">Previous Version</td> |
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40 | <td valign="TOP"><a |
41 | href="http://www.unicode.org/Public/3.0-Update/UnicodeCharacterDatabase-3.0.0.html">http://www.unicode.org/Public/3.0-Update/UnicodeCharacterDatabase-3.0.0.html</a></td> |
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42 | </tr> |
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43 | <tr> |
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44 | <td valign="TOP" width="144">Latest Version</td> |
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45 | <td valign="TOP"><a |
46 | href="http://www.unicode.org/Public/UNIDATA/UnicodeCharacterDatabase.html">http://www.unicode.org/Public/UNIDATA/UnicodeCharacterDatabase.html</a></td> |
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47 | </tr> |
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48 | </table> |
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49 | <p align="center">Copyright © 1995-2000 Unicode, Inc. All Rights reserved.</p> |
50 | <h2>Disclaimer</h2> |
51 | <p>The Unicode Character Database is provided as is by Unicode, Inc. No claims |
52 | are made as to fitness for any particular purpose. No warranties of any kind are |
53 | expressed or implied. The recipient agrees to determine applicability of |
54 | information provided. If this file has been purchased on magnetic or optical |
55 | media from Unicode, Inc., the sole remedy for any claim will be exchange of |
56 | defective media within 90 days of receipt.</p> |
57 | <p>This disclaimer is applicable for all other data files accompanying the |
58 | Unicode Character Database, some of which have been compiled by the Unicode |
59 | Consortium, and some of which have been supplied by other sources.</p> |
60 | <h2>Limitations on Rights to Redistribute This Data</h2> |
61 | <p>Recipient is granted the right to make copies in any form for internal |
62 | distribution and to freely use the information supplied in the creation of |
63 | products supporting the Unicode<sup>TM</sup> Standard. The files in the Unicode |
64 | Character Database can be redistributed to third parties or other organizations |
65 | (whether for profit or not) as long as this notice and the disclaimer notice are |
66 | retained. Information can be extracted from these files and used in |
67 | documentation or programs, as long as there is an accompanying notice indicating |
68 | the source.</p> |
69 | <h2>Introduction</h2> |
70 | <p>The Unicode Character Database is a set of files that define the Unicode |
71 | character properties and internal mappings. For more information about character |
72 | properties and mappings, see <i><a |
73 | href="http://www.unicode.org/unicode/uni2book/u2.html">The Unicode Standard</a></i>.</p> |
74 | <p>The Unicode Character Database has been updated to reflect Version 3.0 of the |
75 | Unicode Standard, with many characters added to those published in Version 2.0. |
76 | A number of corrections have also been made to case mappings or other errors in |
77 | the database noted since the publication of Version 2.0. Normative bidirectional |
78 | properties have also been modified to reflect decisions of the Unicode Technical |
79 | Committee.</p> |
80 | <p>For more information on versions of the Unicode Standard and how to reference |
81 | them, see <a href="http://www.unicode.org/unicode/standard/versions/">http://www.unicode.org/unicode/standard/versions/</a>.</p> |
82 | <h2>Conformance</h2> |
83 | <p>Character properties may be either normative or informative. <i>Normative</i> |
84 | means that implementations that claim conformance to the Unicode Standard (at a |
85 | particular version) and which make use of a particular property or field must |
86 | follow the specifications of the standard for that property or field in order to |
87 | be conformant. The term <i>normative</i> when applied to a property or field of |
88 | the Unicode Character Database, does <i>not</i> mean that the value of that |
89 | field will never change. Corrections and extensions to the standard in the |
90 | future may require minor changes to normative values, even though the Unicode |
91 | Technical Committee strives to minimize such changes. An<i> informative </i>property |
92 | or field is strongly recommended, but a conformant implementation is free to use |
93 | or change such values as it may require while still being conformant to the |
94 | standard. Particular implementations may choose to override the properties and |
95 | mappings that are not normative. In that case, it is up to the implementer to |
96 | establish a protocol to convey that information.</p> |
97 | <h2>Files</h2> |
98 | <p>The following summarizes the files in the Unicode Character Database. For |
99 | more information about these files, see the referenced technical report(s) or |
100 | section of Unicode Standard, Version 3.0.</p> |
101 | <p><b>UnicodeData.txt (Chapter 4, <a |
102 | href="http://www.unicode.org/unicode/reports/tr21/">UTR #21: Case Mappings</a>, <a |
103 | href="http://www.unicode.org/unicode/reports/tr15/">UAX #15 Unicode Normalization |
104 | Forms</a>)</b> |
105 | <ul> |
106 | <li>The main file in the Unicode Character Database.</li> |
107 | <li>For detailed information on the format, see <a href="UnicodeData.html">UnicodeData.html</a>. |
108 | This file also characterizes which properties are normative and which are |
109 | informative.</li> |
110 | </ul> |
111 | <p><b>PropList.txt (Chapter 4)</b> |
112 | <ul> |
113 | <li>Additional informative properties list: <i>Alphabetic, Ideographic,</i> |
114 | and <i>Mathematical</i>, among others.</li> |
115 | </ul> |
116 | <p><b>SpecialCasing.txt (Chapter 4, <a |
117 | href="http://www.unicode.org/unicode/reports/tr21/">UTR #21: Case Mappings</a>)</b> |
118 | <ul> |
119 | <li>List of informative special casing properties, including one-to-many |
120 | mappings such as SHARP S => "SS", and locale-specific mappings, |
121 | such as for Turkish <i>dotless i</i>.</li> |
122 | </ul> |
123 | <p><b>Blocks.txt (Chapter 14)</b> |
124 | <ul> |
125 | <li>List of normative block names.</li> |
126 | </ul> |
127 | <p><b>Jamo.txt (Chapter 4)</b> |
128 | <ul> |
129 | <li>List of normative Jamo short names, used in deriving HANGUL SYLLABLE names |
130 | algorithmically.</li> |
131 | </ul> |
132 | <p><b>ArabicShaping.txt (Section 8.2)</b> |
133 | <ul> |
134 | <li>Basic Arabic and Syriac character shaping properties, such as initial, |
135 | medial and final shapes. These properties are normative for minimal shaping |
136 | of Arabic and Syriac.</li> |
137 | </ul> |
138 | <p><b>NamesList.txt (Chapter 14)</b> |
139 | <ul> |
140 | <li>This file duplicates some of the material in the UnicodeData file, and |
141 | adds informative annotations uses in the character charts, as printed in the |
142 | Unicode Standard.</li> |
143 | <li><b>Note: </b>The information in NamesList.txt and Index.txt files matches |
144 | the appropriate version of the book. Changes in the Unicode Character |
145 | Database since then may not be reflected in these files, since they are |
146 | primarily of archival interest.</li> |
147 | </ul> |
148 | <p><b>Index.txt (Chapter 14)</b> |
149 | <ul> |
150 | <li>Informative index to Unicode characters, as printed in the Unicode |
151 | Standard</li> |
152 | <li><b>Note: </b>The information in NamesList.txt and Index.txt files matches |
153 | the appropriate version of the book. Changes in the Unicode Character |
154 | Database since then may not be reflected in these files, since they are |
155 | primarily of archival interest.</li> |
156 | </ul> |
157 | <p><b>CompositionExclusions.txt (<a |
158 | href="http://www.unicode.org/unicode/reports/tr15/">UAX #15 Unicode Normalization |
159 | Forms</a>)</b> |
160 | <ul> |
161 | <li>Normative properties for normalization.</li> |
162 | </ul> |
163 | <p><b>LineBreak.txt (<a href="http://www.unicode.org/unicode/reports/tr14/">UAX |
164 | #14: Line Breaking Properties</a>)</b> |
165 | <ul> |
166 | <li>Normative and informative properties for line breaking. To see which |
167 | properties are informative and which are normative, consult UAX #14.</li> |
168 | </ul> |
169 | <p><b>EastAsianWidth.txt (<a href="http://www.unicode.org/unicode/reports/tr11/">UAX |
170 | #11: East Asian Character Width</a>)</b> |
171 | <ul> |
172 | <li>Informative properties for determining the choice of wide vs. narrow |
173 | glyphs in East Asian contexts.</li> |
174 | </ul> |
175 | <p><b>BidiMirroring.txt</b><b> (<a |
176 | href="http://www.unicode.org/unicode/reports/tr9/">UAX #9: The |
177 | Bidirectional Algorithm</a>)</b></p> |
178 | <ul> |
179 | <li>Informative properties for substituting characters in an implementation of |
180 | bidirectional mirroring.</li> |
181 | </ul> |
182 | <p><b>CaseFolding.txt (<a href="http://www.unicode.org/unicode/reports/tr21/">UTR |
183 | #21: Case Mappings</a>)</b></p> |
184 | <ul> |
185 | <li>Informative file mapping characters to their case-folded form.</li> |
186 | </ul> |
187 | <p><b>NormalizationTest.txt (<a |
188 | href="http://www.unicode.org/unicode/reports/tr15/">UAX #15 Unicode Normalization |
189 | Forms</a>)</b></p> |
190 | <ul> |
191 | <li>Normative test file for conformance to Unicode Normalization Forms.</li> |
192 | </ul> |
193 | <p><b>diffXvY.txt</b> |
194 | <ul> |
195 | <li>Mechanically-generated informative files containing accumulated |
196 | differences between successive versions of UnicodeData.txt</li> |
197 | </ul> |
198 | |
199 | </body> |
200 | |
201 | </html> |