398 lines
13 KiB
HTML
398 lines
13 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edge">
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<link rel="stylesheet" href="../../../../static/styles.css?h=ca3aba42">
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<link rel="stylesheet" href="../../../../static/pygments.css">
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<link rel="shortcut icon" href="../../../../static/favicon.png?h=fa09bedd">
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<title>Context | Documentation | Lektor Static Content Management System</title>
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</head>
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<body class="default">
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<nav class="navbar navbar-inverse navbar-static-top">
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<div class="container">
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<div class="navbar-header">
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<button type="button" class="navbar-toggle collapsed"
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data-toggle="collapse" data-target="#navbar"
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aria-expanded="false" aria-controls="navbar">
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<span class="sr-only">Toggle navigation</span>
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<span class="icon-bar"></span>
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<span class="icon-bar"></span>
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<span class="icon-bar"></span>
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</button>
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<a class="navbar-brand" href="../../../../">Lektor</a>
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</div>
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<div id="navbar" class="collapse navbar-collapse">
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<ul class="nav navbar-nav">
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<li><a href="../../../../downloads/">Download</a></li>
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<li class="active"><a href="../../../">Documentation</a></li>
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<li><a href="../../../../showcase/">Showcase</a></li>
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<li><a href="../../../../plugins/">Plugins</a></li>
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<li><a href="../../../../community/">Community</a></li>
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<li><a href="../../../../blog/">Blog</a></li>
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</ul>
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</div>
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</nav>
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<div class="body-wrapper">
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<div class="container">
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<div class="row">
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<div class="col-sm-3">
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<ul class="tree-nav nocontent">
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<li><a href="../../../">Welcome</a></li>
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<li><a href="../../../what/">What is Lektor</a>
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<li><a href="../../../installation/">Installation</a>
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<li><a href="../../../quickstart/">Quickstart</a>
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<li><a href="../../../project/">Project</a>
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<li><a href="../../../content/">Content</a>
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<li><a href="../../../templates/">Templates</a>
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<li><a href="../../../themes/">Themes</a>
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<li><a href="../../../guides/">Guides</a>
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<li><a href="../../../deployment/">Deployment</a>
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<li><a href="../../../plugins/">Plugins</a>
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<li><a href="../../../models/">Data Modelling</a>
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<li><a href="../../../cli/">Command Line</a>
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<li><a href="../../">API</a>
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<ul>
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<li><a href="../">Build System</a>
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<ul>
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<li><a href="../artifact/">Artifact</a>
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<li><a href="../program/">BuildProgram</a>
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<li class="active"><a href="./">Context</a>
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<ul>
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<li><a href="changed-base-url/">changed_base_url()</a>
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<li><a href="gather-dependencies/">gather_dependencies()</a>
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<li><a href="locale/">locale</a>
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<li><a href="pad/">pad</a>
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<li><a href="record/">record</a>
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<li><a href="record-dependency/">record_dependency()</a>
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<li><a href="source/">source</a>
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<li><a href="sub-artifact/">sub_artifact()</a>
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</ul>
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<li><a href="../get-ctx/">get_ctx()</a>
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</ul>
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<li><a href="../../databags/">Databags</a>
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<li><a href="../../db/">Database</a>
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<li><a href="../../environment/">Environment</a>
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<li><a href="../../plugins/">Plugins</a>
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<li><a href="../../project/">Project</a>
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<li><a href="../../publisher/">Publisher</a>
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<li><a href="../../templates/">Template API</a>
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<li><a href="../../utils/">Utilities</a>
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</ul>
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<li><a href="../../../search/">Search</a>
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</ul>
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<div class="visible-md-block visible-lg-block">
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<h4>This Page</h4>
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<ul class="toc">
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<li><a href="#basic-example">Basic Example</a></li>
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</ul>
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</div>
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</div>
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<div class="col-sm-9 doc-styling">
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<h1><i class="glyphicon glyphicon-leaf"></i> <code class="mod">lektor.context.</code><code class="obj">Context</code></h1>
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<ul class=page-meta>
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</ul>
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<p>When Lektor builds sources into finished build artifacts it performs many
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operations in addition to just creating the end result. For instance it needs
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to perform dependency tracking, it needs to remember that there might be
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associated other artifacts and more. All this information is tracked on the
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<code>Context</code> during a build of a single source. At a later point the builder
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will look at the context to decide on further operations to perform.</p>
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<p>The current context can be discovered by calling the <a href="../get-ctx/" class="ref">get_ctx</a>
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function which will return it. If there is no artifact build ongoing then
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the return value will be <code>None</code>.</p>
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<h2 id="basic-example">Basic Example</h2><div class="hll"><pre><span></span><span class="kn">from</span> <span class="nn">lektor.context</span> <span class="kn">import</span> <span class="n">get_ctx</span>
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<span class="n">ctx</span> <span class="o">=</span> <span class="n">get_ctx</span><span class="p">()</span>
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<span class="nb">print</span><span class="p">(</span><span class="s1">'The current source is </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">ctx</span><span class="o">.</span><span class="n">source</span><span class="p">)</span>
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</pre></div>
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<div class="child-pages nocontent">
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<div class="row">
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<div class="col-md-6 child">
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<h4>
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<i class="glyphicon glyphicon-cog"></i>
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<a href="changed-base-url/">changed_base_url()</a>
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</h4>
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<p class="summary">Can override the base URL that is used for relative URL generation.</p>
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</div>
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<div class="col-md-6 child">
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<h4>
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<i class="glyphicon glyphicon-cog"></i>
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<a href="gather-dependencies/">gather_dependencies()</a>
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</h4>
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<p class="summary">Can collect dependencies for a code block.</p>
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</div>
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</div>
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<div class="row">
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<div class="col-md-6 child">
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<h4>
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<i class="glyphicon glyphicon-info-sign"></i>
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<a href="locale/">locale</a>
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</h4>
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<p class="summary">The current locale (language/territory) code for the context.</p>
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</div>
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<div class="col-md-6 child">
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<h4>
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<i class="glyphicon glyphicon-info-sign"></i>
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<a href="pad/">pad</a>
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</h4>
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<p class="summary">A reference to the active database pad.</p>
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</div>
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</div>
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<div class="row">
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<div class="col-md-6 child">
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<h4>
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<i class="glyphicon glyphicon-info-sign"></i>
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<a href="record/">record</a>
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</h4>
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<p class="summary">A reference to the current source record.</p>
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</div>
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<div class="col-md-6 child">
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<h4>
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<i class="glyphicon glyphicon-cog"></i>
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<a href="record-dependency/">record_dependency()</a>
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</h4>
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<p class="summary">Instructs the builder to record a new dependency for the current artifact.</p>
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</div>
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</div>
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<div class="row">
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<div class="col-md-6 child">
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<h4>
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<i class="glyphicon glyphicon-info-sign"></i>
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<a href="source/">source</a>
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</h4>
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<p class="summary">A reference to the current source object.</p>
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</div>
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<div class="col-md-6 child">
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<h4>
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<i class="glyphicon glyphicon-cog"></i>
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<a href="sub-artifact/">sub_artifact()</a>
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</h4>
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<p class="summary">Creates a sub-artifact of the current one.</p>
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</div>
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</div>
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</div>
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<div class="comment-box">
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<h2>Comments</h2>
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<div id="disqus_thread"></div>
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<script>
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var disqus_config = function() { this.page.identifier = "/docs/api/build/context"; this.page.url = "https://www.getlektor.com/docs/api/build/context/"; };
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(function() {
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var d = document, s = d.createElement('script');
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s.src = '//lektordocumentation.disqus.com/embed.js';
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s.setAttribute('data-timestamp', +new Date());
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(d.head || d.body).appendChild(s);
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})();
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</script>
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<noscript>
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Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript"
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rel="nofollow">comments powered by Disqus.</a>
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</noscript>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div class="bottomsummary">
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<div class="container">
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</div>
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</div>
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<footer>
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<div class="container">
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<div class="row">
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<div class="col-sm-4 icon-bar">
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<a href="https://github.com/lektor/lektor/" title="Lektor on GitHub"
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><i class="fa fa-github"></i></a>
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<a href="https://github.com/lektor/lektor/issues/" title="Report Issues for Lektor"
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><i class="fa fa-bug"></i></a>
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<a href="https://twitter.com/getlektor" title="Find Lektor on Twitter"
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><i class="fa fa-twitter"></i></a>
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<a href="https://gitter.im/lektor/lektor" title="Chat on Gitter"
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><i class="fa fa-comment"></i></a>
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<a href="https://github.com/lektor/lektor-website/tree/master/content/docs/api/build/context/contents.lr" title="View source for this page"><i class="fa fa-code"></i></a>
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</div>
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<div class="col-sm-8">
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<a href="../../../../license/">License & Copyright</a> •
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<a href="../../../../contact/">Contact</a> •
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Made with <i class="fa fa-fw fa-heart" title="Heart"><span hidden>Heart</span></i> in Carinthia
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</div>
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</footer>
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<script type=text/javascript src="../../../../static/app.js?h=bb1b933a" charset="utf-8"></script>
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<script>
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((window.gitter = {}).chat = {}).options = {
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room: 'lektor/lektor',
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document.write('<button class="js-gitter-toggle-chat-button">Toggle Chat</button>');
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var dnt = navigator.doNotTrack || window.doNotTrack || navigator.msDoNotTrack;
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if (dnt != "1" && dnt != "yes") {
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ga('send', 'pageview');
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} else {
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console.debug("Respecting Do-Not-Track, not running analytics.");
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</script>
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<script async src='https://www.google-analytics.com/analytics.js'></script>
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