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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/********************************************************************
 * COPYRIGHT: 
 * Copyright (c) 1997-2012, International Business Machines Corporation and
 * others. All Rights Reserved.
 *
 *  FILE NAME: DOCMAIN.h
 *
 *   Date          Name        Description
 *   12/11/2000    Ram        Creation.
 */

/**
 * \file
 * \brief (Non API- contains Doxygen definitions)
 *
 * This file contains documentation for Doxygen and does not have
 * any significance with respect to C or C++ API
 */

/*! \mainpage
 *
 * \section API API Reference Usage
 * 
 * <h3>C++ Programmers:</h3>
 * <p>Use <a href="hierarchy.html">Class Hierarchy</a> or <a href="classes.html"> Alphabetical List </a>
 * or <a href="annotated.html"> Compound List</a>
 * to find the class you are interested in. For example, to find BreakIterator,
 * you can go to the <a href="classes.html"> Alphabetical List</a>, then click on
 * "BreakIterator". Once you are at the class, you will find an inheritance
 * chart, a list of the public members, a detailed description of the class,
 * then detailed member descriptions.</p>
 * 
 * <h3>C Programmers:</h3>
 * <p>Use <a href="#Module">Module List</a> or <a href="globals_u.html">File Members</a>
 * to find a list of all the functions and constants.
 * For example, to find BreakIterator functions you would click on
 * <a href="files.html"> File List</a>,
 * then find "ubrk.h" and click on it. You will find descriptions of Defines,
 * Typedefs, Enumerations, and Functions, with detailed descriptions below.
 * If you want to find a specific function, such as ubrk_next(), then click
 * first on <a href="globals.html"> File Members</a>, then use your browser
 * Find dialog to search for "ubrk_next()".</p>
 *
 *
 * <h3>API References for Previous Releases</h3>
 * <p>The API References for each release of ICU are also available as
 * a zip file from the ICU 
 * <a href="https://icu.unicode.org/download">download page</a>.</p>
 *
 * <hr>
 *
 * <h2>Architecture (User's Guide)</h2>
 * <ul>
 *   <li><a href="https://unicode-org.github.io/icu/userguide/">Introduction</a></li>
 *   <li><a href="https://unicode-org.github.io/icu/userguide/i18n">Internationalization</a></li>
 *   <li><a href="https://unicode-org.github.io/icu/userguide/design">Locale Model, Multithreading, Error Handling, etc.</a></li>
 *   <li><a href="https://unicode-org.github.io/icu/userguide/conversion">Conversion</a></li>
 * </ul>
 *
 * <hr>
 *\htmlonly <h2><a NAME="Module">Module List</a></h2> \endhtmlonly
 * <table border="1" cols="3" align="center">
 *   <tr>
 *     <td><strong>Module Name</strong></td>
 *     <td><strong>C</strong></td>
 *     <td><strong>C++</strong></td>
 *   </tr>
 *   <tr>
 *     <td>Basic Types and Constants</td>
 *     <td>utypes.h</td>
 *     <td>utypes.h</td>
 *   </tr>
 *   <tr>
 *     <td>Strings and Character Iteration</td>
 *     <td>ustring.h, utf8.h, utf16.h, icu::StringPiece, UText, UCharIterator, icu::ByteSink</td>
 *     <td>icu::UnicodeString, icu::CharacterIterator, icu::Appendable, icu::StringPiece,icu::ByteSink</td>
 *   </tr>
 *   <tr>
 *     <td>Unicode Character<br/>Properties and Names</td>
 *     <td>uchar.h, uscript.h</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>Sets of Unicode Code Points and Strings</td>
 *     <td>uset.h</td>
 *     <td>icu::UnicodeSet</td>
 *   </tr>
 *   <tr>
 *     <td>Maps from Unicode Code Points to Integer Values</td>
 *     <td>ucptrie.h, umutablecptrie.h</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>Maps from Strings to Integer Values</td>
 *     <td>(no C API)</td>
 *     <td>icu::BytesTrie, icu::UCharsTrie</td>
 *   </tr>
 *   <tr>
 *     <td>Codepage Conversion</td>
 *     <td>ucnv.h, ucnvsel.h</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>Codepage Detection</td>
 *     <td>ucsdet.h</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>Unicode Text Compression</td>
 *     <td>ucnv.h<br/>(encoding name "SCSU" or "BOCU-1")</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>Locales </td>
 *     <td>uloc.h, ulocale.h, ulocbuilder.h</a></td>
 *     <td>icu::Locale, icu::LocaleBuilder, icu::LocaleMatcher</td>
 *   </tr>
 *   <tr>
 *     <td>Resource Bundles</td>
 *     <td>ures.h</td>
 *     <td>icu::ResourceBundle</td>
 *   </tr>
 *   <tr>
 *     <td>Normalization</td>
 *     <td>unorm2.h</td>
 *     <td>icu::Normalizer2</td>
 *   </tr>
 *   <tr>
 *     <td>Calendars and Time Zones</td>
 *     <td>ucal.h</td>
 *     <td>icu::Calendar, icu::TimeZone</td>
 *   </tr>
 *   <tr>
 *     <td>Date and Time Formatting</td>
 *     <td>udat.h</td>
 *     <td>icu::DateFormat</td>
 *   </tr>
 *   <tr>
 *     <td>Message Formatting</td>
 *     <td>umsg.h</td>
 *     <td>icu::MessageFormat</td>
 *   </tr>
 *   <tr>
 *     <td>List Formatting</td>
 *     <td>ulistformatter.h</td>
 *     <td>icu::ListFormatter</td>
 *   </tr>
 *   <tr>
 *     <td>Number Formatting<br/>(includes currency and unit formatting)</td>
 *     <td>unumberformatter.h, unum.h, usimplenumberformatter.h</td>
 *     <td>icu::number::NumberFormatter (ICU 60+) or icu::NumberFormat (older versions)<br>icu::number::SimpleNumberFormatter (ICU 73+)</td>
 *   </tr>
 *   <tr>
 *     <td>Number Range Formatting<br />(includes currency and unit ranges)</td>
 *     <td>unumberrangeformatter.h</td>
 *     <td>icu::number::NumberRangeFormatter</td>
 *   </tr>
 *   <tr>
 *     <td>Number Spellout<br/>(Rule Based Number Formatting)</td>
 *     <td>unum.h<br/>(use UNUM_SPELLOUT)</td>
 *     <td>icu::RuleBasedNumberFormat</td>
 *   </tr>
 *   <tr>
 *     <td>Text Transformation<br/>(Transliteration)</td>
 *     <td>utrans.h</td>
 *     <td>icu::Transliterator</td>
 *   </tr>
 *   <tr>
 *     <td>Bidirectional Algorithm</td>
 *     <td>ubidi.h, ubiditransform.h</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>Arabic Shaping</td>
 *     <td>ushape.h</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>Collation</td>
 *     <td>ucol.h</td>
 *     <td>icu::Collator</td>
 *   </tr>
 *   <tr>
 *     <td>String Searching</td>
 *     <td>usearch.h</td>
 *     <td>icu::StringSearch</td>
 *   </tr>
 *   <tr>
 *     <td>Index Characters/<br/>Bucketing for Sorted Lists</td>
 *     <td>(no C API)</td>
 *     <td>icu::AlphabeticIndex</td>
 *   </tr>
 *   <tr>
 *     <td>Text Boundary Analysis<br/>(Break Iteration)</td>
 *     <td>ubrk.h</td>
 *     <td>icu::BreakIterator</td>
 *   </tr>
 *   <tr>
 *     <td>Regular Expressions</td>
 *     <td>uregex.h</td>
 *     <td>icu::RegexPattern, icu::RegexMatcher</td>
 *   </tr>
 *   <tr>
 *     <td>StringPrep</td>
 *     <td>usprep.h</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>International Domain Names in Applications:<br/>
 *         UTS #46 in C/C++, IDNA2003 only via C API</td>
 *     <td>uidna.h</td>
 *     <td>idna.h</td>
 *   </tr>
 *   <tr>
 *     <td>Identifier Spoofing & Confusability</td>
 *     <td>uspoof.h</td>
 *     <td>C API</td>
 *   <tr>
 *     <td>Universal Time Scale</td>
 *     <td>utmscale.h</td>
 *     <td>C API</td>
 *   </tr>
 *   <tr>
 *     <td>Paragraph Layout / Complex Text Layout</td>
 *     <td>playout.h</td>
 *     <td>icu::ParagraphLayout</td>
 *   </tr>
 *   <tr>
 *     <td>ICU I/O</td>
 *     <td>ustdio.h</td>
 *     <td>ustream.h</td>
 *   </tr>
 * </table>
 * <i>This main page is generated from docmain.h</i>
 */