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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.sis.io</a></div>
<h1 title="Class LineAppender" class="title">Class LineAppender</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
<div class="inheritance">LineAppender</div>
</div>
<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/Flushable.html" title="class or interface in java.io" class="external-link">Flushable</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">LineAppender</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>
implements <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/Flushable.html" title="class or interface in java.io" class="external-link">Flushable</a></span></div>
<div class="block">An <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link"><code>Appendable</code></a> which can apply different kinds of reformatting that depend on the
<cite>End Of Line</cite> (EOL) occurrences. Available reformatting include inserting a
a margin before each line, wrapping to a maximal line length and replacing tabulations or
EOL characters. The actual work to be done can be enabled by invoking one or many of the
following methods:
<ul>
<li><a href="#setMaximalLineLength(int)"><code>set­Maximal­Line­Length(int)</code></a> for wrapping the lines to some maximal line length,
typically 80 Unicode characters (code points).</li>
<li><a href="#setTabulationExpanded(boolean)"><code>set­Tabulation­Expanded(boolean)</code></a> for replacing tabulation characters by spaces.</li>
<li><a href="#setLineSeparator(java.lang.String)"><code>set­Line­Separator(String)</code></a> for replacing all occurrences of
<a href="../util/Characters.html#isLineOrParagraphSeparator(int)">line separators</a> by the given string.</li>
</ul>
In addition this class removes trailing <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Character.html#isWhitespace(int)" title="class or interface in java.lang" class="external-link">whitespaces</a>
before end of lines.
<h2>How line lengths are calculated</h2>
Line length are measured in unit of Unicode <cite>code points</cite>. This is usually the same
than the number of <code>char</code> primitive values, but not always. Combining characters are not
yet recognized by this class, but future versions may improve on that.
<p>For proper line length calculation in presence of tabulation characters (<code>'\t'</code>),
this class needs to known the tabulation width. The default value is 8, but this can be changed
by a call to <a href="#setTabulationWidth(int)"><code>set­Tabulation­Width(int)</code></a>. Note that invoking that method affects only line
length calculation; it does not replace tabulations by spaces. For tabulation expansion, see
<a href="#setTabulationExpanded(boolean)"><code>set­Tabulation­Expanded(boolean)</code></a>.</p></div>
<dl class="notes">
<dt>Since:</dt>
<dd>0.3</dd>
<p><font size="-1">Defined in the <code>sis-utility</code> module</font></p>
</dl>
</section>
<section class="summary">
<ul class="summary-list">
<!-- =========== FIELD SUMMARY =========== -->
<li>
<section class="field-summary" id="field-summary">
<h2>Field Summary</h2>
<div class="caption"><span>Fields</span></div>
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>protected final <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></code></div>
<div class="col-second even-row-color"><code><a href="#out" class="member-name-link">out</a></code></div>
<div class="col-last even-row-color">
<div class="block">The underlying character output stream or buffer.</div>
</div>
</div>
</section>
</li>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(java.lang.Appendable)" class="member-name-link">Line­Appender</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a>&nbsp;out)</code></div>
<div class="col-last even-row-color">
<div class="block">Constructs a default formatter.</div>
</div>
<div class="col-constructor-name odd-row-color"><code><a href="#%3Cinit%3E(java.lang.Appendable,int,boolean)" class="member-name-link">Line­Appender</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a>&nbsp;out,
int&nbsp;maximal­Line­Length,
boolean&nbsp;is­Tabulation­Expanded)</code></div>
<div class="col-last odd-row-color">
<div class="block">Constructs a formatter which will wrap the lines at a given maximal length.</div>
</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(java.lang.Appendable,java.lang.String,boolean)" class="member-name-link">Line­Appender</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a>&nbsp;out,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;line­Separator,
boolean&nbsp;is­Tabulation­Expanded)</code></div>
<div class="col-last even-row-color">
<div class="block">Constructs a formatter which will replaces line separators by the given string.</div>
</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#append(char)" class="member-name-link">append</a><wbr>(char&nbsp;c)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Writes a single character.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#append(java.lang.CharSequence)" class="member-name-link">append</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/CharSequence.html" title="class or interface in java.lang" class="external-link">Char­Sequence</a>&nbsp;sequence)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Appends the specified character sequence.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#append(java.lang.CharSequence,int,int)" class="member-name-link">append</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/CharSequence.html" title="class or interface in java.lang" class="external-link">Char­Sequence</a>&nbsp;sequence,
int&nbsp;start,
int&nbsp;end)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Writes a portion of a character sequence.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#clear()" class="member-name-link">clear</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Resets the <code>Line­Appender</code> internal state as if a new line was beginning.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#flush()" class="member-name-link">flush</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Sends all pending characters to the underlying appendable, including trailing whitespaces.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getLineSeparator()" class="member-name-link">get­Line­Separator</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the line separator to be sent to the underlying appendable,
or <code>null</code> if EOL sequences are forwarded unchanged.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>int</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getMaximalLineLength()" class="member-name-link">get­Maximal­Line­Length</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the maximal line length, in unit of Unicode characters (code point count).</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>int</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#getTabulationWidth()" class="member-name-link">get­Tabulation­Width</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the current tabulation width, in unit of Unicode characters (code point count).</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#isTabulationExpanded()" class="member-name-link">is­Tabulation­Expanded</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns <code>true</code> if this formatter expands tabulations into spaces.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>protected void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#onLineBegin(boolean)" class="member-name-link">on­Line­Begin</a><wbr>(boolean&nbsp;is­Continuation)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Invoked when a new line is beginning.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setLineSeparator(java.lang.String)" class="member-name-link">set­Line­Separator</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;line­Separator)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Changes the line separator to be sent to the underlying appendable.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setMaximalLineLength(int)" class="member-name-link">set­Maximal­Line­Length</a><wbr>(int&nbsp;length)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Sets the maximal line length, in units of Unicode characters (code point count).</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setTabulationExpanded(boolean)" class="member-name-link">set­Tabulation­Expanded</a><wbr>(boolean&nbsp;expanded)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Sets whether this class formatter expands tabulations into spaces.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setTabulationWidth(int)" class="member-name-link">set­Tabulation­Width</a><wbr>(int&nbsp;width)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Sets the tabulation width, in unit of Unicode characters (code point count).</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#toString()" class="member-name-link">to­String</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Returns the content of this <code>Appendable</code> as a string if possible,
or the localized <cite>"Unavailable content"</cite> string otherwise.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-Object">Methods inherited from class&nbsp;<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">get­Class</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hash­Code</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notify­All</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field-detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="out">
<h3>out</h3>
<div class="member-signature"><span class="modifiers">protected final</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></span>&nbsp;<span class="element-name">out</span></div>
<div class="block">The underlying character output stream or buffer.</div>
</section>
</li>
</ul>
</section>
</li>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;(java.lang.Appendable)">
<h3>LineAppender</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">LineAppender</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a>&nbsp;out)</span></div>
<div class="block">Constructs a default formatter. Callers should invoke at least one of the following methods
after construction in order to perform useful work:
<ul>
<li><a href="#setMaximalLineLength(int)"><code>set­Maximal­Line­Length(int)</code></a></li>
<li><a href="#setTabulationExpanded(boolean)"><code>set­Tabulation­Expanded(boolean)</code></a></li>
<li><a href="#setLineSeparator(java.lang.String)"><code>set­Line­Separator(String)</code></a></li>
</ul></div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>out</code> - the underlying stream or buffer to write to.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="&lt;init&gt;(java.lang.Appendable,java.lang.String,boolean)">
<h3>LineAppender</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">LineAppender</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a>&nbsp;out,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;lineSeparator,
boolean&nbsp;isTabulationExpanded)</span></div>
<div class="block">Constructs a formatter which will replaces line separators by the given string.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>out</code> - the underlying stream or buffer to write to.</dd>
<dd><code>line­Separator</code> - the line separator to send to <code>out</code>, or <code>null</code>
for forwarding the EOL sequences unchanged.</dd>
<dd><code>is­Tabulation­Expanded</code> - <code>true</code> for expanding tabulations into spaces,
or <code>false</code> for sending <code>'\t'</code> characters as-is.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="&lt;init&gt;(java.lang.Appendable,int,boolean)">
<h3>LineAppender</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">LineAppender</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a>&nbsp;out,
int&nbsp;maximalLineLength,
boolean&nbsp;isTabulationExpanded)</span></div>
<div class="block">Constructs a formatter which will wrap the lines at a given maximal length.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>out</code> - the underlying stream or buffer to write to.</dd>
<dd><code>maximal­Line­Length</code> - the maximal number of Unicode characters per line,
or <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Integer.html#MAX_VALUE" title="class or interface in java.lang" class="external-link"><code>Integer​.MAX_VALUE</code></a> if there is no limit.</dd>
<dd><code>is­Tabulation­Expanded</code> - <code>true</code> for expanding tabulations into spaces,
or <code>false</code> for forwarding <code>'\t'</code> characters as-is.</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getMaximalLineLength()">
<h3>getMaximalLineLength</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getMaximalLineLength</span>()</div>
<div class="block">Returns the maximal line length, in unit of Unicode characters (code point count).
The default value is no limit.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the current maximal number of Unicode characters per line,
or <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Integer.html#MAX_VALUE" title="class or interface in java.lang" class="external-link"><code>Integer​.MAX_VALUE</code></a> if there is no limit.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="setMaximalLineLength(int)">
<h3>setMaximalLineLength</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">setMaximalLineLength</span><wbr><span class="parameters">(int&nbsp;length)</span></div>
<div class="block">Sets the maximal line length, in units of Unicode characters (code point count).</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>length</code> - the new maximal number of Unicode characters per line,
or <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Integer.html#MAX_VALUE" title="class or interface in java.lang" class="external-link"><code>Integer​.MAX_VALUE</code></a> if there is no limit.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getTabulationWidth()">
<h3>getTabulationWidth</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getTabulationWidth</span>()</div>
<div class="block">Returns the current tabulation width, in unit of Unicode characters (code point count).
The default value is 8.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the current tabulation width in number of Unicode characters.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="setTabulationWidth(int)">
<h3>setTabulationWidth</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">setTabulationWidth</span><wbr><span class="parameters">(int&nbsp;width)</span></div>
<div class="block">Sets the tabulation width, in unit of Unicode characters (code point count).</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>width</code> - the new tabulation width. Must be greater than 0.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/IllegalArgumentException.html" title="class or interface in java.lang" class="external-link">Illegal­Argument­Exception</a></code> - if <code>tab­Width</code> is not greater than 0
or is unreasonably high.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isTabulationExpanded()">
<h3>isTabulationExpanded</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isTabulationExpanded</span>()</div>
<div class="block">Returns <code>true</code> if this formatter expands tabulations into spaces.
The default value is <code>false</code>, which means that <code>'\t'</code> characters
are sent to the underlying appendable <i>as-is</i>.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd><code>true</code> if this formatter expands tabulations into spaces,
or <code>false</code> if <code>'\t'</code> characters are forwarded <i>as-is</i>.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="setTabulationExpanded(boolean)">
<h3>setTabulationExpanded</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">setTabulationExpanded</span><wbr><span class="parameters">(boolean&nbsp;expanded)</span></div>
<div class="block">Sets whether this class formatter expands tabulations into spaces.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>expanded</code> - <code>true</code> if this class shall expands tabulations into spaces,
or <code>false</code> for forwarding <code>'\t'</code> characters as-is.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getLineSeparator()">
<h3>getLineSeparator</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">getLineSeparator</span>()</div>
<div class="block">Returns the line separator to be sent to the underlying appendable,
or <code>null</code> if EOL sequences are forwarded unchanged.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the current line separator, or <code>null</code> if EOL are forwarded <i>as-is</i>.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="setLineSeparator(java.lang.String)">
<h3>setLineSeparator</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">setLineSeparator</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;lineSeparator)</span></div>
<div class="block">Changes the line separator to be sent to the underlying appendable.
This is the string to insert in place of every occurrences of <code>"\r"</code>, <code>"\n"</code>,
<code>"\r\n"</code> or other <a href="../util/Characters.html#isLineOrParagraphSeparator(int)">line separators</a>.
If <code>null</code> (the default), then the line separators given to the <code>append</code>
methods are forwarded unchanged.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>line­Separator</code> - the new line separator, or <code>null</code> for forwarding EOL <i>as-is</i>.</dd>
<dt>See Also:</dt>
<dd>
<ul class="see-list-long">
<li><a href="../util/Characters.html#isLineOrParagraphSeparator(int)"><code>Characters​.is­Line­Or­Paragraph­Separator(int)</code></a></li>
</ul>
</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="append(char)">
<h3>append</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></span>&nbsp;<span class="element-name">append</span><wbr><span class="parameters">(char&nbsp;c)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<div class="block">Writes a single character.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html#append(char)" title="class or interface in java.lang" class="external-link">append</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></code></dd>
<dt>Parameters:</dt>
<dd><code>c</code> - the character to append.</dd>
<dt>Returns:</dt>
<dd>a reference to this <code>Appendable</code>.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code> - if an I/O error occurs.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="append(java.lang.CharSequence,int,int)">
<h3>append</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></span>&nbsp;<span class="element-name">append</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/CharSequence.html" title="class or interface in java.lang" class="external-link">CharSequence</a>&nbsp;sequence,
int&nbsp;start,
int&nbsp;end)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<div class="block">Writes a portion of a character sequence.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html#append(java.lang.CharSequence,int,int)" title="class or interface in java.lang" class="external-link">append</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></code></dd>
<dt>Parameters:</dt>
<dd><code>sequence</code> - the character sequence to be written.</dd>
<dd><code>start</code> - index from which to start reading characters.</dd>
<dd><code>end</code> - index of the character following the last character to read.</dd>
<dt>Returns:</dt>
<dd>a reference to this <code>Appendable</code>.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code> - if an I/O error occurs.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="clear()">
<h3>clear</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">clear</span>()
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<div class="block">Resets the <code>Line­Appender</code> internal state as if a new line was beginning.
Trailing whitespaces not yet sent to the <a href="#out">underlying appendable</a>
are discarded, and the column position (for tabulation expansion calculation) is
reset to 0. This method does not write any line separator.</div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code> - if an error occurred while sending the trailing non-white
characters to the underlying stream.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="flush()">
<h3>flush</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">flush</span>()
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<div class="block">Sends all pending characters to the underlying appendable, including trailing whitespaces.
Note that this method should preferably be invoked at the end of a word, sentence or line,
since invoking this method may prevent <code>Line­Appender</code> to properly wrap the current
line if the current position is in the middle of a word.
<p>Invoking this method also flushes the underlying stream, if <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/Flushable.html" title="class or interface in java.io" class="external-link">flushable</a>.
A cheaper way to send pending characters is to make sure that the last character is a
<a href="../util/Characters.html#isLineOrParagraphSeparator(int)">line or paragraph terminator</a>,
or to invoke <a href="#clear()"><code>clear()</code></a>.</p></div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/Flushable.html#flush()" title="class or interface in java.io" class="external-link">flush</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/Flushable.html" title="class or interface in java.io" class="external-link">Flushable</a></code></dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code> - if an I/O error occurs.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="onLineBegin(boolean)">
<h3>onLineBegin</h3>
<div class="member-signature"><span class="modifiers">protected</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">onLineBegin</span><wbr><span class="parameters">(boolean&nbsp;isContinuation)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<div class="block">Invoked when a new line is beginning. The default implementation does nothing,
but subclasses can override this method for example in order to insert a margin
on the left side before each line.
<p>If an implementation wishes to write characters, it shall do so by writing
directly to <a href="#out"><code>out</code></a>, <strong>not</strong> by invoking the <code>append</code>
methods of this class.</p></div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>is­Continuation</code> - <code>true</code> if the new line is the continuation of the previous
line after a "line wrap", or <code>false</code> if a line or paragraph separator has
been explicitly sent to this formatter.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code> - if an error occurred while writing to <a href="#out"><code>out</code></a>.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="append(java.lang.CharSequence)">
<h3>append</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></span>&nbsp;<span class="element-name">append</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/CharSequence.html" title="class or interface in java.lang" class="external-link">CharSequence</a>&nbsp;sequence)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<div class="block">Appends the specified character sequence.
The default implementation delegates to <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html#append(java.lang.CharSequence,int,int)" title="class or interface in java.lang" class="external-link"><code>Appendable​.append(Char­Sequence, int, int)</code></a>.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html#append(java.lang.CharSequence)" title="class or interface in java.lang" class="external-link">append</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Appendable.html" title="class or interface in java.lang" class="external-link">Appendable</a></code></dd>
<dt>Parameters:</dt>
<dd><code>sequence</code> - the character sequence to append, or <code>null</code>.</dd>
<dt>Returns:</dt>
<dd>a reference to this <code>Appendable</code>.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code> - if an I/O error occurred.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="toString()">
<h3>toString</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span>&nbsp;<span class="element-name">toString</span>()</div>
<div class="block">Returns the content of this <code>Appendable</code> as a string if possible,
or the localized <cite>"Unavailable content"</cite> string otherwise.</div>
<dl class="notes">
<dt>Overrides:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">to­String</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></code></dd>
<dt>Returns:</dt>
<dd>the content of this <code>Appendable</code>, or a localized message for unavailable content.</dd>
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="IO.html#content(java.lang.Appendable)"><code>IO​.content(Appendable)</code></a></li>
</ul>
</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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