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<div class="subTitle">com.google.javascript.jscomp.regex</div>
<h2 title="Class CaseCanonicalize" class="title">Class CaseCanonicalize</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
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<ul class="inheritance">
<li>com.google.javascript.jscomp.regex.CaseCanonicalize</li>
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<pre>public final class <span class="strong">CaseCanonicalize</span>
extends java.lang.Object</pre>
<div class="block">Implements the ECMAScript 5
<a href="http://es5.github.com/#Canonicalize">Canonicalize</a> operation
used to specify how case-insensitive regular expressions match.
<p>
From section <a href="http://es5.github.com/#x15.10.2.9">15.10.2.9</a>,
<blockquote>
The abstract operation Canonicalize takes a character parameter ch and
performs the following steps:
<ul>
<li>If IgnoreCase is false, return ch.
<li>Let u be ch converted to upper case as if by calling the standard
built-in method <code>String.prototype.toUpperCase</code> on the one-character
String ch.
<li>If u does not consist of a single character, return ch.
<li>Let cu be u's character.
<li>If ch's code unit value is greater than or equal to decimal 128 and
cu's code unit value is less than decimal 128, then return ch.
<li>Return cu.
</ul></div>
</li>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>static com.google.javascript.jscomp.regex.CharRanges</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/regex/CaseCanonicalize.html#CASE_SENSITIVE">CASE_SENSITIVE</a></strong></code>
<div class="block">Set of code units that are case-insensitively equivalent to some other
code unit according to the EcmaScript
<a href="http://es5.github.com/#Canonicalize">Canonicalize</a> operation
described in section 15.10.2.8.</div>
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<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>static char</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/regex/CaseCanonicalize.html#caseCanonicalize(char)">caseCanonicalize</a></strong>(char ch)</code>
<div class="block">Returns the case canonical version of the given code-unit.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/regex/CaseCanonicalize.html#caseCanonicalize(java.lang.String)">caseCanonicalize</a></strong>(java.lang.String s)</code>
<div class="block">Returns the case canonical version of the given string.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static com.google.javascript.jscomp.regex.CharRanges</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/regex/CaseCanonicalize.html#expandToAllMatched(com.google.javascript.jscomp.regex.CharRanges)">expandToAllMatched</a></strong>(com.google.javascript.jscomp.regex.CharRanges ranges)</code>
<div class="block">Given a character range that may include case sensitive code-units,
such as <code>[0-9B-M]</code>, returns the character range that includes all
the code-units in the input and those that are case-insensitively
equivalent to a code-unit in the input.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static com.google.javascript.jscomp.regex.CharRanges</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/regex/CaseCanonicalize.html#reduceToMinimum(com.google.javascript.jscomp.regex.CharRanges)">reduceToMinimum</a></strong>(com.google.javascript.jscomp.regex.CharRanges ranges)</code>
<div class="block">Given a character range that may include case sensitive code-units,
such as <code>[0-9B-M]</code>, returns the character range that includes
the minimal set of code units such that for every code unit in the
input there is a case-sensitively equivalent canonical code unit in the
output.</div>
</td>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>CASE_SENSITIVE</h4>
<pre>public static final com.google.javascript.jscomp.regex.CharRanges CASE_SENSITIVE</pre>
<div class="block">Set of code units that are case-insensitively equivalent to some other
code unit according to the EcmaScript
<a href="http://es5.github.com/#Canonicalize">Canonicalize</a> operation
described in section 15.10.2.8.
The case sensitive characters are the ones that canonicalize to a character
other than themselves or have a character that canonicalizes to them.
Canonicalize is based on the definition of
<code>String.prototype.toUpperCase</code> which is itself based on Unicode 3.0.0
as specified at
<a href="ftp://ftp.unicode.org/Public/3.0-Update/UnicodeData-3.0.0.txt">
UnicodeData-3.0.0
</a>
and <a href="ftp://ftp.unicode.org/Public/3.0-Update/SpecialCasing-2.txt">
SpecialCasings-2.txt
</a>.
<p>
This table was generated by running the below on Chrome:
</p>
<pre>
for (var cc = 0; cc < 0x10000; ++cc) {
var ch = String.fromCharCode(cc);
var u = ch.toUpperCase();
if (ch != u && u.length === 1) {
var cu = u.charCodeAt(0);
if (cc <= 128 || u.charCodeAt(0) > 128) {
print('0x' + cc.toString(16) + ', 0x' + cu.toString(16) + ',');
}
}
}
</pre></div>
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<h4>caseCanonicalize</h4>
<pre>public static java.lang.String caseCanonicalize(java.lang.String s)</pre>
<div class="block">Returns the case canonical version of the given string.</div>
</li>
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<a name="caseCanonicalize(char)">
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<h4>caseCanonicalize</h4>
<pre>public static char caseCanonicalize(char ch)</pre>
<div class="block">Returns the case canonical version of the given code-unit. ECMAScript 5
explicitly says that code-units are to be treated as their code-point
equivalent, even surrogates.</div>
</li>
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<h4>expandToAllMatched</h4>
<pre>public static com.google.javascript.jscomp.regex.CharRanges expandToAllMatched(com.google.javascript.jscomp.regex.CharRanges ranges)</pre>
<div class="block">Given a character range that may include case sensitive code-units,
such as <code>[0-9B-M]</code>, returns the character range that includes all
the code-units in the input and those that are case-insensitively
equivalent to a code-unit in the input.</div>
</li>
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<h4>reduceToMinimum</h4>
<pre>public static com.google.javascript.jscomp.regex.CharRanges reduceToMinimum(com.google.javascript.jscomp.regex.CharRanges ranges)</pre>
<div class="block">Given a character range that may include case sensitive code-units,
such as <code>[0-9B-M]</code>, returns the character range that includes
the minimal set of code units such that for every code unit in the
input there is a case-sensitively equivalent canonical code unit in the
output.</div>
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