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<h1>Normalizer2 Class Reference</h1><!-- doxytag: class="Normalizer2" --><!-- doxytag: inherits="UObject" -->
<p>Unicode normalization functionality for standard Unicode normalization or for using custom mapping tables.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="normalizer2_8h_source.html">normalizer2.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for Normalizer2:</div>
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<div class="center">
<img src="classNormalizer2.gif" usemap="#Normalizer2_map" alt=""/>
<map id="Normalizer2_map" name="Normalizer2_map">
<area href="classUObject.html" alt="UObject" shape="rect" coords="0,56,123,80"/>
<area href="classUMemory.html" alt="UMemory" shape="rect" coords="0,0,123,24"/>
<area href="classFilteredNormalizer2.html" alt="FilteredNormalizer2" shape="rect" coords="0,168,123,192"/>
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<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classUnicodeString.html">UnicodeString</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#a51ac0536e77f3a23d43454be9cc08d45">normalize</a> (const <a class="el" href="classUnicodeString.html">UnicodeString</a> &src, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the normalized form of the source string. <a href="#a51ac0536e77f3a23d43454be9cc08d45"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classUnicodeString.html">UnicodeString</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#aaccb79cc4e5890a21ceab5e48bfcfa6a">normalize</a> (const <a class="el" href="classUnicodeString.html">UnicodeString</a> &src, <a class="el" href="classUnicodeString.html">UnicodeString</a> &dest, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Writes the normalized form of the source string to the destination string (replacing its contents) and returns the destination string. <a href="#aaccb79cc4e5890a21ceab5e48bfcfa6a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classUnicodeString.html">UnicodeString</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#afd8dcff9a734a907ffcad911b1aecdaf">normalizeSecondAndAppend</a> (<a class="el" href="classUnicodeString.html">UnicodeString</a> &first, const <a class="el" href="classUnicodeString.html">UnicodeString</a> &second, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Appends the normalized form of the second string to the first string (merging them at the boundary) and returns the first string. <a href="#afd8dcff9a734a907ffcad911b1aecdaf"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classUnicodeString.html">UnicodeString</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#aa701f5025a1fd268a849f22a6b3a0b7e">append</a> (<a class="el" href="classUnicodeString.html">UnicodeString</a> &first, const <a class="el" href="classUnicodeString.html">UnicodeString</a> &second, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Appends the second string to the first string (merging them at the boundary) and returns the first string. <a href="#aa701f5025a1fd268a849f22a6b3a0b7e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#a37ef8fa354316a07e61791a681f3ae6d">isNormalized</a> (const <a class="el" href="classUnicodeString.html">UnicodeString</a> &s, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Tests if the string is normalized. <a href="#a37ef8fa354316a07e61791a681f3ae6d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="unorm2_8h.html#a01b7464189aef5dae63c0c759e84bece">UNormalizationCheckResult</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#a6d001fa00896a75435554fd517e17125">quickCheck</a> (const <a class="el" href="classUnicodeString.html">UnicodeString</a> &s, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Tests if the string is normalized. <a href="#a6d001fa00896a75435554fd517e17125"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#a6c433aa0b90828674a77842af7f05af6">spanQuickCheckYes</a> (const <a class="el" href="classUnicodeString.html">UnicodeString</a> &s, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the end of the normalized substring of the input string. <a href="#a6c433aa0b90828674a77842af7f05af6"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#ab7e005b753513353f4b9089aced11843">hasBoundaryBefore</a> (<a class="el" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> c) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Tests if the character always has a normalization boundary before it, regardless of context. <a href="#ab7e005b753513353f4b9089aced11843"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#abc2f36a74414d2ef25a4d9cb7cd91b64">hasBoundaryAfter</a> (<a class="el" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> c) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Tests if the character always has a normalization boundary after it, regardless of context. <a href="#abc2f36a74414d2ef25a4d9cb7cd91b64"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#abd3325b2bbd179697a9d7b86f7f409f1">isInert</a> (<a class="el" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> c) const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Tests if the character is normalization-inert. <a href="#abd3325b2bbd179697a9d7b86f7f409f1"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="utypes_8h.html#a22af10545208a455a6e884008df48e9f">UClassID</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#a60508e4ccacbc6483ba69064dea5278d">getDynamicClassID</a> () const =0</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">ICU "poor man's RTTI", returns a UClassID for the actual class. <a href="#a60508e4ccacbc6483ba69064dea5278d"></a><br/></td></tr>
<tr><td colspan="2"><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static const <a class="el" href="classNormalizer2.html">Normalizer2</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#a5f4be1fb35f18125aea3e3e83373a35f">getInstance</a> (const char *packageName, const char *name, <a class="el" href="unorm2_8h.html#a3cf189b046fe90ca167d2294275f4ab5">UNormalization2Mode</a> mode, <a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns a <a class="el" href="classNormalizer2.html" title="Unicode normalization functionality for standard Unicode normalization or for using...">Normalizer2</a> instance which uses the specified data file (packageName/name similar to <a class="el" href="ucnv_8h.html#a7e3fc1e59ac1404120f242b8911cadbb">ucnv_openPackage()</a> and <a class="el" href="ures_8h.html#ac4d72fc9f7cc63a05f646cabee4be167" title="Opens a UResourceBundle, from which users can extract strings by using their corresponding...">ures_open()</a>/ResourceBundle) and which composes or decomposes text according to the specified mode. <a href="#a5f4be1fb35f18125aea3e3e83373a35f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static <a class="el" href="utypes_8h.html#a22af10545208a455a6e884008df48e9f">UClassID</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classNormalizer2.html#ae443cfcf2fc7c5fcbb14abb089cad797">getStaticClassID</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">ICU "poor man's RTTI", returns a UClassID for this class. <a href="#ae443cfcf2fc7c5fcbb14abb089cad797"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Unicode normalization functionality for standard Unicode normalization or for using custom mapping tables. </p>
<p>All instances of this class are unmodifiable/immutable. Instances returned by <a class="el" href="classNormalizer2.html#a5f4be1fb35f18125aea3e3e83373a35f" title="Returns a Normalizer2 instance which uses the specified data file (packageName/name...">getInstance()</a> are singletons that must not be deleted by the caller.</p>
<p>The primary functions are to produce a normalized string and to detect whether a string is already normalized. The most commonly used normalization forms are those defined in <a href="http://www.unicode.org/unicode/reports/tr15/">http://www.unicode.org/unicode/reports/tr15/</a> However, this API supports additional normalization forms for specialized purposes. For example, NFKC_Casefold is provided via getInstance("nfkc_cf", COMPOSE) and can be used in implementations of UTS #46.</p>
<p>Not only are the standard compose and decompose modes supplied, but additional modes are provided as documented in the Mode enum.</p>
<p>Some of the functions in this class identify normalization boundaries. At a normalization boundary, the portions of the string before it and starting from it do not interact and can be handled independently.</p>
<p>The <a class="el" href="classNormalizer2.html#a6c433aa0b90828674a77842af7f05af6" title="Returns the end of the normalized substring of the input string.">spanQuickCheckYes()</a> stops at a normalization boundary. When the goal is a normalized string, then the text before the boundary can be copied, and the remainder can be processed with <a class="el" href="classNormalizer2.html#afd8dcff9a734a907ffcad911b1aecdaf" title="Appends the normalized form of the second string to the first string (merging them...">normalizeSecondAndAppend()</a>.</p>
<p>The <a class="el" href="classNormalizer2.html#ab7e005b753513353f4b9089aced11843" title="Tests if the character always has a normalization boundary before it, regardless...">hasBoundaryBefore()</a>, <a class="el" href="classNormalizer2.html#abc2f36a74414d2ef25a4d9cb7cd91b64" title="Tests if the character always has a normalization boundary after it, regardless of...">hasBoundaryAfter()</a> and <a class="el" href="classNormalizer2.html#abd3325b2bbd179697a9d7b86f7f409f1" title="Tests if the character is normalization-inert.">isInert()</a> functions test whether a character is guaranteed to be at a normalization boundary, regardless of context. This is used for moving from one normalization boundary to the next or preceding boundary, and for performing iterative normalization.</p>
<p>Iterative normalization is useful when only a small portion of a longer string needs to be processed. For example, in ICU, iterative normalization is used by the NormalizationTransliterator (to avoid replacing already-normalized text) and <a class="el" href="ucol_8h.html#a8c8ed92bb13577d6cd9a129b38a05d69" title="Gets the next count bytes of a sort key.">ucol_nextSortKeyPart()</a> (to process only the substring for which sort key bytes are computed).</p>
<p>The set of normalization boundaries returned by these functions may not be complete: There may be more boundaries that could be returned. Different functions may return different boundaries. </p>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000008">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Definition at line <a class="el" href="normalizer2_8h_source.html#l00077">77</a> of file <a class="el" href="normalizer2_8h_source.html">normalizer2.h</a>.</p>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="aa701f5025a1fd268a849f22a6b3a0b7e"></a><!-- doxytag: member="Normalizer2::append" ref="aa701f5025a1fd268a849f22a6b3a0b7e" args="(UnicodeString &first, const UnicodeString &second, UErrorCode &errorCode) const =0" -->
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<td class="memname">virtual <a class="el" href="classUnicodeString.html">UnicodeString</a>& Normalizer2::append </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classUnicodeString.html">UnicodeString</a> & </td>
<td class="paramname"> <em>first</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classUnicodeString.html">UnicodeString</a> & </td>
<td class="paramname"> <em>second</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
<td class="paramname"> <em>errorCode</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td> const<code> [pure virtual]</code></td>
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<p>Appends the second string to the first string (merging them at the boundary) and returns the first string. </p>
<p>The result is normalized if both the strings were normalized. The first and second strings must be different objects. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>first</em> </td><td>string, should be normalized </td></tr>
<tr><td valign="top"></td><td valign="top"><em>second</em> </td><td>string, should be normalized </td></tr>
<tr><td valign="top"></td><td valign="top"><em>errorCode</em> </td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
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</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>first </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000014">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#aa9fd39238503044982bbf2daff42511a">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="a60508e4ccacbc6483ba69064dea5278d"></a><!-- doxytag: member="Normalizer2::getDynamicClassID" ref="a60508e4ccacbc6483ba69064dea5278d" args="() const =0" -->
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<td class="memname">virtual <a class="el" href="utypes_8h.html#a22af10545208a455a6e884008df48e9f">UClassID</a> Normalizer2::getDynamicClassID </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [pure virtual]</code></td>
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<div class="memdoc">
<p>ICU "poor man's RTTI", returns a UClassID for the actual class. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>a UClassID for the actual class. </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000022">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implements <a class="el" href="classUObject.html#a9b1acc95efd89cb86ec31f2dc947a262">UObject</a>.</p>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#a26910c43629b98fc949c39a62c22edd1">FilteredNormalizer2</a>.</p>
</div>
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<a class="anchor" id="a5f4be1fb35f18125aea3e3e83373a35f"></a><!-- doxytag: member="Normalizer2::getInstance" ref="a5f4be1fb35f18125aea3e3e83373a35f" args="(const char *packageName, const char *name, UNormalization2Mode mode, UErrorCode &errorCode)" -->
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<td class="memname">static const <a class="el" href="classNormalizer2.html">Normalizer2</a>* Normalizer2::getInstance </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>packageName</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="unorm2_8h.html#a3cf189b046fe90ca167d2294275f4ab5">UNormalization2Mode</a> </td>
<td class="paramname"> <em>mode</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
<td class="paramname"> <em>errorCode</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [static]</code></td>
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<p>Returns a <a class="el" href="classNormalizer2.html" title="Unicode normalization functionality for standard Unicode normalization or for using...">Normalizer2</a> instance which uses the specified data file (packageName/name similar to <a class="el" href="ucnv_8h.html#a7e3fc1e59ac1404120f242b8911cadbb">ucnv_openPackage()</a> and <a class="el" href="ures_8h.html#ac4d72fc9f7cc63a05f646cabee4be167" title="Opens a UResourceBundle, from which users can extract strings by using their corresponding...">ures_open()</a>/ResourceBundle) and which composes or decomposes text according to the specified mode. </p>
<p>Returns an unmodifiable singleton instance. Do not delete it.</p>
<p>Use packageName=NULL for data files that are part of ICU's own data. Use name="nfc" and UNORM2_COMPOSE/UNORM2_DECOMPOSE for Unicode standard NFC/NFD. Use name="nfkc" and UNORM2_COMPOSE/UNORM2_DECOMPOSE for Unicode standard NFKC/NFKD. Use name="nfkc_cf" and UNORM2_COMPOSE for Unicode standard NFKC_CF=NFKC_Casefold.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>packageName</em> </td><td>NULL for ICU built-in data, otherwise application data package name </td></tr>
<tr><td valign="top"></td><td valign="top"><em>name</em> </td><td>"nfc" or "nfkc" or "nfkc_cf" or name of custom data file </td></tr>
<tr><td valign="top"></td><td valign="top"><em>mode</em> </td><td>normalization mode (compose or decompose etc.) </td></tr>
<tr><td valign="top"></td><td valign="top"><em>errorCode</em> </td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>the requested <a class="el" href="classNormalizer2.html" title="Unicode normalization functionality for standard Unicode normalization or for using...">Normalizer2</a>, if successful </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000010">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
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<a class="anchor" id="ae443cfcf2fc7c5fcbb14abb089cad797"></a><!-- doxytag: member="Normalizer2::getStaticClassID" ref="ae443cfcf2fc7c5fcbb14abb089cad797" args="()" -->
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<td class="memname">static <a class="el" href="utypes_8h.html#a22af10545208a455a6e884008df48e9f">UClassID</a> Normalizer2::getStaticClassID </td>
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<p>ICU "poor man's RTTI", returns a UClassID for this class. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>a UClassID for this class. </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000021">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Reimplemented in <a class="el" href="classFilteredNormalizer2.html#a8a6373a80fee739477d0928973489c04">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="abc2f36a74414d2ef25a4d9cb7cd91b64"></a><!-- doxytag: member="Normalizer2::hasBoundaryAfter" ref="abc2f36a74414d2ef25a4d9cb7cd91b64" args="(UChar32 c) const =0" -->
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<td class="memname">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> Normalizer2::hasBoundaryAfter </td>
<td>(</td>
<td class="paramtype"><a class="el" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> </td>
<td class="paramname"> <em>c</em></td>
<td> ) </td>
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<p>Tests if the character always has a normalization boundary after it, regardless of context. </p>
<p>If true, then the character does not normalization-interact with following characters. In other words, a string containing this character can be normalized by processing portions up to this character and after this character independently. This is used for iterative normalization. See the class documentation for details. Note that this operation may be significantly slower than <a class="el" href="classNormalizer2.html#ab7e005b753513353f4b9089aced11843" title="Tests if the character always has a normalization boundary before it, regardless...">hasBoundaryBefore()</a>. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>c</em> </td><td>character to test </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>TRUE if c has a normalization boundary after it </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000019">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#af6670c5560d57f87b92add8b07136931">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="ab7e005b753513353f4b9089aced11843"></a><!-- doxytag: member="Normalizer2::hasBoundaryBefore" ref="ab7e005b753513353f4b9089aced11843" args="(UChar32 c) const =0" -->
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<td class="memname">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> Normalizer2::hasBoundaryBefore </td>
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<td class="paramtype"><a class="el" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> </td>
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<p>Tests if the character always has a normalization boundary before it, regardless of context. </p>
<p>If true, then the character does not normalization-interact with preceding characters. In other words, a string containing this character can be normalized by processing portions before this character and starting from this character independently. This is used for iterative normalization. See the class documentation for details. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>c</em> </td><td>character to test </td></tr>
</table>
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<dl class="return"><dt><b>Returns:</b></dt><dd>TRUE if c has a normalization boundary before it </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000018">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#a9f447d4ef069df91885ed443b15ce3ae">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="abd3325b2bbd179697a9d7b86f7f409f1"></a><!-- doxytag: member="Normalizer2::isInert" ref="abd3325b2bbd179697a9d7b86f7f409f1" args="(UChar32 c) const =0" -->
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<td class="memname">virtual <a class="el" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> Normalizer2::isInert </td>
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<td class="paramtype"><a class="el" href="umachine_8h.html#a09fff5c3b5a5b015324dc3ec3cf92809">UChar32</a> </td>
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<p>Tests if the character is normalization-inert. </p>
<p>If true, then the character does not change, nor normalization-interact with preceding or following characters. In other words, a string containing this character can be normalized by processing portions before this character and after this character independently. This is used for iterative normalization. See the class documentation for details. Note that this operation may be significantly slower than <a class="el" href="classNormalizer2.html#ab7e005b753513353f4b9089aced11843" title="Tests if the character always has a normalization boundary before it, regardless...">hasBoundaryBefore()</a>. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>c</em> </td><td>character to test </td></tr>
</table>
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<dl class="return"><dt><b>Returns:</b></dt><dd>TRUE if c is normalization-inert </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000020">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#acb08c5dfd669fd09d3e0cf62806f8a3a">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="a37ef8fa354316a07e61791a681f3ae6d"></a><!-- doxytag: member="Normalizer2::isNormalized" ref="a37ef8fa354316a07e61791a681f3ae6d" args="(const UnicodeString &s, UErrorCode &errorCode) const =0" -->
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<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
<td class="paramname"> <em>errorCode</em></td><td> </td>
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<p>Tests if the string is normalized. </p>
<p>Internally, in cases where the <a class="el" href="classNormalizer2.html#a6d001fa00896a75435554fd517e17125" title="Tests if the string is normalized.">quickCheck()</a> method would return "maybe" (which is only possible for the two COMPOSE modes) this method resolves to "yes" or "no" to provide a definitive result, at the cost of doing more work in those cases. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>s</em> </td><td>input string </td></tr>
<tr><td valign="top"></td><td valign="top"><em>errorCode</em> </td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>TRUE if s is normalized </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000015">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#a576f5d048a152e09da79f66c7bfb58c4">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="aaccb79cc4e5890a21ceab5e48bfcfa6a"></a><!-- doxytag: member="Normalizer2::normalize" ref="aaccb79cc4e5890a21ceab5e48bfcfa6a" args="(const UnicodeString &src, UnicodeString &dest, UErrorCode &errorCode) const =0" -->
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<td class="memname">virtual <a class="el" href="classUnicodeString.html">UnicodeString</a>& Normalizer2::normalize </td>
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<td></td>
<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
<td class="paramname"> <em>errorCode</em></td><td> </td>
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<p>Writes the normalized form of the source string to the destination string (replacing its contents) and returns the destination string. </p>
<p>The source and destination strings must be different objects. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>src</em> </td><td>source string </td></tr>
<tr><td valign="top"></td><td valign="top"><em>dest</em> </td><td>destination string; its contents is replaced with normalized src </td></tr>
<tr><td valign="top"></td><td valign="top"><em>errorCode</em> </td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>dest </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000012">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#ab0a164b19c39ae83f6fa0e39de03b577">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="a51ac0536e77f3a23d43454be9cc08d45"></a><!-- doxytag: member="Normalizer2::normalize" ref="a51ac0536e77f3a23d43454be9cc08d45" args="(const UnicodeString &src, UErrorCode &errorCode) const " -->
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<td class="memname"><a class="el" href="classUnicodeString.html">UnicodeString</a> Normalizer2::normalize </td>
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<p>Returns the normalized form of the source string. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>src</em> </td><td>source string </td></tr>
<tr><td valign="top"></td><td valign="top"><em>errorCode</em> </td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>normalized src </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000011">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Definition at line <a class="el" href="normalizer2_8h_source.html#l00117">117</a> of file <a class="el" href="normalizer2_8h_source.html">normalizer2.h</a>.</p>
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<a class="anchor" id="afd8dcff9a734a907ffcad911b1aecdaf"></a><!-- doxytag: member="Normalizer2::normalizeSecondAndAppend" ref="afd8dcff9a734a907ffcad911b1aecdaf" args="(UnicodeString &first, const UnicodeString &second, UErrorCode &errorCode) const =0" -->
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<p>Appends the normalized form of the second string to the first string (merging them at the boundary) and returns the first string. </p>
<p>The result is normalized if the first string was normalized. The first and second strings must be different objects. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>first</em> </td><td>string, should be normalized </td></tr>
<tr><td valign="top"></td><td valign="top"><em>second</em> </td><td>string, will be normalized </td></tr>
<tr><td valign="top"></td><td valign="top"><em>errorCode</em> </td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>first </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000013">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#a4da04a1bc80036517a4882fc92d44660">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="a6d001fa00896a75435554fd517e17125"></a><!-- doxytag: member="Normalizer2::quickCheck" ref="a6d001fa00896a75435554fd517e17125" args="(const UnicodeString &s, UErrorCode &errorCode) const =0" -->
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<p>Tests if the string is normalized. </p>
<p>For the two COMPOSE modes, the result could be "maybe" in cases that would take a little more work to resolve definitively. Use <a class="el" href="classNormalizer2.html#a6c433aa0b90828674a77842af7f05af6" title="Returns the end of the normalized substring of the input string.">spanQuickCheckYes()</a> and <a class="el" href="classNormalizer2.html#afd8dcff9a734a907ffcad911b1aecdaf" title="Appends the normalized form of the second string to the first string (merging them...">normalizeSecondAndAppend()</a> for a faster combination of quick check + normalization, to avoid re-checking the "yes" prefix. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>s</em> </td><td>input string </td></tr>
<tr><td valign="top"></td><td valign="top"><em>errorCode</em> </td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
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</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>UNormalizationCheckResult </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000016">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#ad6a49b1af0723123fa8dac23dd36f0f6">FilteredNormalizer2</a>.</p>
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<a class="anchor" id="a6c433aa0b90828674a77842af7f05af6"></a><!-- doxytag: member="Normalizer2::spanQuickCheckYes" ref="a6c433aa0b90828674a77842af7f05af6" args="(const UnicodeString &s, UErrorCode &errorCode) const =0" -->
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<td></td>
<td class="paramtype"><a class="el" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> & </td>
<td class="paramname"> <em>errorCode</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td> const<code> [pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Returns the end of the normalized substring of the input string. </p>
<p>In other words, with <code>end=spanQuickCheckYes(s, ec);</code> the substring <code>UnicodeString(s, 0, end)</code> will pass the quick check with a "yes" result.</p>
<p>The returned end index is usually one or more characters before the "no" or "maybe" character: The end index is at a normalization boundary. (See the class documentation for more about normalization boundaries.)</p>
<p>When the goal is a normalized string and most input strings are expected to be normalized already, then call this method, and if it returns a prefix shorter than the input string, copy that prefix and use <a class="el" href="classNormalizer2.html#afd8dcff9a734a907ffcad911b1aecdaf" title="Appends the normalized form of the second string to the first string (merging them...">normalizeSecondAndAppend()</a> for the remainder. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>s</em> </td><td>input string </td></tr>
<tr><td valign="top"></td><td valign="top"><em>errorCode</em> </td><td>Standard ICU error code. Its input value must pass the <a class="el" href="utypes_8h.html#a527f2c69e6b2e3b2c53ad8a99fb36711" title="Does the error code indicate success?">U_SUCCESS()</a> test, or else the function returns immediately. Check for <a class="el" href="utypes_8h.html#a4d202200b6aa6f3c965ea370e0c8155f" title="Does the error code indicate a failure?">U_FAILURE()</a> on output or use with function chaining. (See User Guide for details.) </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>"yes" span end index </dd></dl>
<dl class="draft"><dt><b><a class="el" href="draft.html#_draft000017">Draft:</a></b></dt><dd>This API may be changed in the future versions and was introduced in ICU 4.4 </dd></dl>
<p>Implemented in <a class="el" href="classFilteredNormalizer2.html#aca6b13adc468f9d229eb01d84f8bcead">FilteredNormalizer2</a>.</p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="normalizer2_8h_source.html">normalizer2.h</a></li>
</ul>
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