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-<div class="doc_title">Kaleidoscope: Extending the Language: User-defined Operators</div>
+<h1>Kaleidoscope: Extending the Language: User-defined Operators</h1>
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-<div class="doc_section"><a name="intro">Chapter 6 Introduction</a></div>
+<h2><a name="intro">Chapter 6 Introduction</a></h2>
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-<div class="doc_section"><a name="idea">User-defined Operators: the Idea</a></div>
+<h2><a name="idea">User-defined Operators: the Idea</a></h2>
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-<div class="doc_section"><a name="binary">User-defined Binary Operators</a></div>
+<h2><a name="binary">User-defined Binary Operators</a></h2>
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-<div class="doc_section"><a name="unary">User-defined Unary Operators</a></div>
+<h2><a name="unary">User-defined Unary Operators</a></h2>
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-<div class="doc_section"><a name="example">Kicking the Tires</a></div>
+<h2><a name="example">Kicking the Tires</a></h2>
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-<div class="doc_section"><a name="code">Full Code Listing</a></div>
+<h2><a name="code">Full Code Listing</a></h2>
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