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| author | Jarkko Hietaniemi <jhi@iki.fi> | 1999-09-18 07:35:45 +0000 |
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| committer | Jarkko Hietaniemi <jhi@iki.fi> | 1999-09-18 07:35:45 +0000 |
| commit | c7b62a6899c238c2a399e60a2ab1b36955cfc955 (patch) | |
| tree | c94cfc293b747e099d7bf5a6fa9ce405e8f242dd /lib | |
| parent | d0ee8c1d2787676213affd7b2c738a21ec653aa4 (diff) | |
| download | perl-c7b62a6899c238c2a399e60a2ab1b36955cfc955.tar.gz | |
Add description of the Unicode database files.
p4raw-id: //depot/cfgperl@4190
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/unicode/Unicode.html | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/lib/unicode/Unicode.html b/lib/unicode/Unicode.html new file mode 100644 index 0000000000..113d311f01 --- /dev/null +++ b/lib/unicode/Unicode.html @@ -0,0 +1,345 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" + + "http://www.w3.org/TR/REC-html40/loose.dtd"> + +<html> + + + +<head> + +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> + +<meta http-equiv="Content-Language" content="en-us"> + +<meta name="GENERATOR" content="Microsoft FrontPage 4.0"> + +<meta name="ProgId" content="FrontPage.Editor.Document"> + +<link rel="stylesheet" href="http://www.unicode.org/unicode.css" type="text/css"> + +<title>Unicode Character Database</title> + +</head> + + + +<body> + + + +<h1>UNICODE CHARACTER DATABASE<br> +Version 3.0.0</h1> + +<table border="1" cellspacing="2" cellpadding="0" height="87" width="100%"> + + <tr> + + <td valign="TOP" width="144">Revision</td> + + <td valign="TOP">3.0.0</td> + + </tr> + + <tr> + + <td valign="TOP" width="144">Authors</td> + + <td valign="TOP">Mark Davis and Ken Whistler</td> + + </tr> + + <tr> + + <td valign="TOP" width="144">Date</td> + + <td valign="TOP">1999-09-11</td> + + </tr> + + <tr> + + <td valign="TOP" width="144">This Version</td> + + <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> + + </tr> + + <tr> + + <td valign="TOP" width="144">Previous Version</td> + + <td valign="TOP">n/a</td> + + </tr> + + <tr> + + <td valign="TOP" width="144">Latest Version</td> + + <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> + + </tr> + +</table> + +<p align="center">Copyright © 1995-1999 Unicode, Inc. All Rights reserved.</p> + +<h2>Disclaimer</h2> + +<p>The Unicode Character Database is provided as is by Unicode, Inc. No claims + +are made as to fitness for any particular purpose. No warranties of any kind are + +expressed or implied. The recipient agrees to determine applicability of + +information provided. If this file has been purchased on magnetic or optical + +media from Unicode, Inc., the sole remedy for any claim will be exchange of + +defective media within 90 days of receipt.</p> + +<p>This disclaimer is applicable for all other data files accompanying the + +Unicode Character Database, some of which have been compiled by the Unicode + +Consortium, and some of which have been supplied by other sources.</p> + +<h2>Limitations on Rights to Redistribute This Data</h2> + +<p>Recipient is granted the right to make copies in any form for internal + +distribution and to freely use the information supplied in the creation of + +products supporting the Unicode<sup>TM</sup> Standard. The files in the Unicode + +Character Database can be redistributed to third parties or other organizations + +(whether for profit or not) as long as this notice and the disclaimer notice are + +retained. Information can be extracted from these files and used in + +documentation or programs, as long as there is an accompanying notice indicating + +the source.</p> + +<h2>Introduction</h2> + +<p>The Unicode Character Database is a set of files that define the Unicode + +character properties and internal mappings. For more information about character + +properties and mappings, see <i><a href="http://www.unicode.org/unicode/uni2book/u2.html">The + +Unicode Standard</a></i>.</p> + +<p>The Unicode Character Database has been updated to reflect Version 3.0 of the + +Unicode Standard, with many characters added to those published in Version 2.0. + +A number of corrections have also been made to case mappings or other errors in + +the database noted since the publication of Version 2.0. Normative bidirectional + +properties have also been modified to reflect decisions of the Unicode Technical + +Committee.</p> + +<p>For more information on versions of the Unicode Standard and how to reference + +them, see <a href="http://www.unicode.org/unicode/standard/versions/">http://www.unicode.org/unicode/standard/versions/</a>.</p> + +<h2>Conformance</h2> + +<p>Character properties may be either normative or informative. <i>Normative</i> + +means that implementations that claim conformance to the Unicode Standard (at a + +particular version) and which make use of a particular property or field must + +follow the specifications of the standard for that property or field in order to + +be conformant. The term <i>normative</i> when applied to a property or field of + +the Unicode Character Database, does <i>not</i> mean that the value of that + +field will never change. Corrections and extensions to the standard in the + +future may require minor changes to normative values, even though the Unicode + +Technical Committee strives to minimize such changes. An<i> informative </i>property + +or field is strongly recommended, but a conformant implementation is free to use + +or change such values as it may require while still being conformant to the + +standard. Particular implementations may choose to override the properties and + +mappings that are not normative. In that case, it is up to the implementer to + +establish a protocol to convey that information.</p> + +<h2>Files</h2> + +<p>The following summarizes the files in the Unicode Character Database. For + +more information about these files, see the referenced technical report or + +section of Unicode Standard, Version 3.0.</p> + +<p><b>UnicodeData.txt (Chapter 4)</b> + +<ul> + + <li>The main file in the Unicode Character Database.</li> + + <li>For detailed information on the format, see <a href="UnicodeData.html">UnicodeData.html</a>. + + This file also characterizes which properties are normative and which are + + informative.</li> + +</ul> + +<p><b>PropList.txt (Chapter 4)</b> + +<ul> + + <li>Additional informative properties list: <i>Alphabetic, Ideographic,</i> + + and <i>Mathematical</i>, among others.</li> + +</ul> + +<p><b>SpecialCasing.txt (Chapter 4)</b> + +<ul> + + <li>List of informative special casing properties, including one-to-many + + mappings such as SHARP S => "SS", and locale-specific mappings, + + such as for Turkish <i>dotless i</i>.</li> + +</ul> + +<p><b>Blocks.txt (Chapter 14)</b> + +<ul> + + <li>List of normative block names.</li> + +</ul> + +<p><b>Jamo.txt (Chapter 4)</b> + +<ul> + + <li>List of normative Jamo short names, used in deriving HANGUL SYLLABLE names + + algorithmically.</li> + +</ul> + +<p><b>ArabicShaping.txt (Section 8.2)</b> + +<ul> + + <li>Basic Arabic and Syriac character shaping properties, such as initial, + + medial and final shapes. These properties are normative for minimal shaping + + of Arabic and Syriac. </li> + +</ul> + +<p><b>NamesList.txt (Chapter 14)</b> + +<ul> + + <li>This file duplicates some of the material in the UnicodeData file, and + + adds informative annotations uses in the character charts, as printed in the + + Unicode Standard. </li> + + <li><b>Note: </b>The information in NamesList.txt and Index.txt files matches + + the appropriate version of the book. Changes in the Unicode Character + + Database since then may not be reflected in these files, since they are + + primarily of archival interest.</li> + +</ul> + +<p><b>Index.txt (Chapter 14)</b> + +<ul> + + <li>Informative index to Unicode characters, as printed in the Unicode + + Standard</li> + + <li><b>Note: </b>The information in NamesList.txt and Index.txt files matches + + the appropriate version of the book. Changes in the Unicode Character + + Database since then may not be reflected in these files, since they are + + primarily of archival interest.</li> + +</ul> + +<p><b>CompositionExclusions.txt (<a href="http://www.unicode.org/unicode/reports/tr15/">UTR#15 + +Unicode Normalization Forms</a>)</b> + +<ul> + + <li>Normative properties for normalization.</li> + +</ul> + +<p><b>LineBreak.txt (<a href="http://www.unicode.org/unicode/reports/tr14/">UTR + +#14: Line Breaking Properties</a>)</b> + +<ul> + + <li>Normative and informative properties for line breaking. To see which + + properties are informative and which are normative, consult UTR#14.</li> + +</ul> + +<p><b>EastAsianWidth.txt (<a href="http://www.unicode.org/unicode/reports/tr11/">UTR + +#11: East Asian Character Width</a>)</b> + +<ul> + + <li>Informative properties for determining the choice of wide vs. narrow + + glyphs in East Asian contexts.</li> + +</ul> + +<p><b>diffXvY.txt</b> + +<ul> + + <li>Mechanically-generated informative files containing accumulated + + differences between successive versions of UnicodeData.txt</li> + +</ul> + + + +</body> + + + +</html> + |