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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Returns the YAML representation of a value</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.yaml-emit" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">yaml_emit</h1>
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<p class="verinfo">(PECL yaml >= 0.5.0)</p><p class="refpurpose"><span class="refname">yaml_emit</span> — <span class="dc-title">Returns the YAML representation of a value</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.yaml-emit-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>yaml_emit</strong></span>
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( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$data</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$encoding</code><span class="initializer"> = YAML_ANY_ENCODING</span></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$linebreak</code><span class="initializer"> = YAML_ANY_BREAK</span></span>
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[, <span class="methodparam"><span class="type">array</span> <code class="parameter">$callbacks</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
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]]] ) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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Generate a YAML representation of the provided <code class="parameter">data</code>.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.yaml-emit-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">data</code></dt>
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<dd>
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<p class="para">
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The <code class="parameter">data</code> being encoded. Can be any type except
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a <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span>.
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</p>
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</dd>
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<dt>
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<code class="parameter">encoding</code></dt>
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<dd>
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<p class="para">
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Output character encoding chosen from
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<strong><code>YAML_ANY_ENCODING</code></strong>,
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<strong><code>YAML_UTF8_ENCODING</code></strong>,
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<strong><code>YAML_UTF16LE_ENCODING</code></strong>,
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<strong><code>YAML_UTF16BE_ENCODING</code></strong>.
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</p>
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</dd>
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<dt>
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<code class="parameter">linebreak</code></dt>
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<dd>
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<p class="para">
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Output linebreak style chosen from
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<strong><code>YAML_ANY_BREAK</code></strong>,
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<strong><code>YAML_CR_BREAK</code></strong>,
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<strong><code>YAML_LN_BREAK</code></strong>,
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<strong><code>YAML_CRLN_BREAK</code></strong>.
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</p>
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</dd>
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<dt>
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<code class="parameter">callbacks</code></dt>
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<dd>
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<p class="para">
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Content handlers for emitting YAML nodes. Associative <span class="type"><a href="language.types.array.html" class="type array">array</a></span>
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of classname => <span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> mappings. See
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<a href="yaml.callbacks.emit.html" class="link">emit callbacks</a> for more
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details.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.yaml-emit-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns a YAML encoded <span class="type"><a href="language.types.string.html" class="type string">string</a></span> on success.
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.yaml-emit-changelog">
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<h3 class="title">更新日志</h3>
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<p class="para">
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>1.1.0</td>
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<td>
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The <code class="parameter">callbacks</code> parameter was added.
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.yaml-emit-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-4903">
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<p><strong>Example #1 <span class="function"><strong>yaml_emit()</strong></span> example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$addr </span><span style="color: #007700">= array(<br /> </span><span style="color: #DD0000">"given" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"Chris"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"family"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"Dumars"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"address"</span><span style="color: #007700">=> array(<br /> </span><span style="color: #DD0000">"lines"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"458 Walkman Dr.<br /> Suite #292"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"city"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"Royal Oak"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"state"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"MI"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"postal"</span><span style="color: #007700">=> </span><span style="color: #0000BB">48046</span><span style="color: #007700">,<br /> ),<br /> );<br /></span><span style="color: #0000BB">$invoice </span><span style="color: #007700">= array (<br /> </span><span style="color: #DD0000">"invoice"</span><span style="color: #007700">=> </span><span style="color: #0000BB">34843</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"date"</span><span style="color: #007700">=> </span><span style="color: #0000BB">980208000</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"bill-to"</span><span style="color: #007700">=> </span><span style="color: #0000BB">$addr</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"ship-to"</span><span style="color: #007700">=> </span><span style="color: #0000BB">$addr</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"product"</span><span style="color: #007700">=> array(<br /> array(<br /> </span><span style="color: #DD0000">"sku"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"BL394D"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"quantity"</span><span style="color: #007700">=> </span><span style="color: #0000BB">4</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"description"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"Basketball"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"price"</span><span style="color: #007700">=> </span><span style="color: #0000BB">450</span><span style="color: #007700">,<br /> ),<br /> array(<br /> </span><span style="color: #DD0000">"sku"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"BL4438H"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"quantity"</span><span style="color: #007700">=> </span><span style="color: #0000BB">1</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"description"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"Super Hoop"</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"price"</span><span style="color: #007700">=> </span><span style="color: #0000BB">2392</span><span style="color: #007700">,<br /> ),<br /> ),<br /> </span><span style="color: #DD0000">"tax"</span><span style="color: #007700">=> </span><span style="color: #0000BB">251.42</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"total"</span><span style="color: #007700">=> </span><span style="color: #0000BB">4443.52</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">"comments"</span><span style="color: #007700">=> </span><span style="color: #DD0000">"Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338."</span><span style="color: #007700">,<br /> );<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">yaml_emit</span><span style="color: #007700">(</span><span style="color: #0000BB">$invoice</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程的输出类似于：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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string(628) "---
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invoice: 34843
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date: 980208000
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bill-to:
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given: Chris
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family: Dumars
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address:
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lines: |-
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458 Walkman Dr.
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Suite #292
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city: Royal Oak
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state: MI
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postal: 48046
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ship-to:
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given: Chris
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family: Dumars
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address:
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lines: |-
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458 Walkman Dr.
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Suite #292
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city: Royal Oak
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state: MI
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postal: 48046
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product:
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- sku: BL394D
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quantity: 4
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description: Basketball
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price: 450
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- sku: BL4438H
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quantity: 1
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description: Super Hoop
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price: 2392
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tax: 251.420000
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total: 4443.520000
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comments: Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338.
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...
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"
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.yaml-emit-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="yaml_emit_file.html" class="function" rel="rdfs-seeAlso">yaml_emit_file()</a> - Send the YAML representation of a value to a file</span></li>
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<li class="member"><span class="function"><a href="yaml_parse.html" class="function" rel="rdfs-seeAlso">yaml_parse()</a> - Parse a YAML stream</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |