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<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></div> <!----></nav> <ul class="sidebar-links"><li><a href="/Markwon/docs/v2/getting-started.html" class="sidebar-link">Getting started</a></li><li><a href="/Markwon/docs/v2/install.html" class="sidebar-link">Installation</a></li><li><a href="/Markwon/docs/v2/configure.html" class="sidebar-link">Configuration</a></li><li><a href="/Markwon/docs/v2/theme.html" class="sidebar-link">Theme</a></li><li><a href="/Markwon/docs/v2/factory.html" class="sidebar-link">Factory</a></li><li><a href="/Markwon/docs/v2/image-loader.html" class="sidebar-link">Images</a></li><li><a href="/Markwon/docs/v2/syntax-highlight.html" class="active sidebar-link">Syntax highlight</a></li><li><a href="/Markwon/docs/v2/html.html" class="sidebar-link">HTML</a></li><li><a href="/Markwon/docs/v2/view.html" class="sidebar-link">MarkwonView</a></li></ul> </div> <div class="page"> <div class="content"><h1 id="syntax-highlight"><a href="#syntax-highlight" aria-hidden="true" class="header-anchor">#</a> Syntax highlight</h1> <div class="warning custom-block"><p class="custom-block-title">WARNING</p> <p>This is documentation for <u>legacy</u> versions. For the most current version <a href="/Markwon/">click here.</a></p></div> <a href="http://search.maven.org/#search|ga|1|g%3A%22ru.noties%22%20AND%20a%3A%22markwon-syntax-highlight%22"><img src="https://img.shields.io/maven-central/v/ru.noties/markwon-syntax-highlight.svg?label=markwon-syntax-highlight" alt="markwon-syntax-highlight"></a> <p>This is a simple module to add <strong>syntax highlight</strong> functionality to your markdown rendered with <code>Markwon</code> library. It is based on <a href="https://github.com/noties/Prism4j" target="_blank" rel="noopener noreferrer">Prism4j<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a> so lead there to understand how to configure <code>Prism4j</code> instance.</p> <img src="/Markwon/art/markwon-syntax-default.png" alt="theme-default" width="80%"> <img src="/Markwon/art/markwon-syntax-darkula.png" alt="theme-darkula" width="80%"> <hr> <p>First, we need to obtain an instance of <code>Prism4jSyntaxHighlight</code> which implements Markwon's <code>SyntaxHighlight</code>:</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">final</span> SyntaxHighlight highlight <span class="token operator">=</span>
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Prism4jSyntaxHighlight<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span>Prism4j<span class="token punctuation">,</span> Prism4jTheme<span class="token punctuation">)</span><span class="token punctuation">;</span>
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</code></pre></div><p>we also can obtain an instance of <code>Prism4jSyntaxHighlight</code> that has a <em>fallback</em> option (if a language is not defined in <code>Prism4j</code> instance, fallback language can be used):</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">final</span> SyntaxHighlight highlight <span class="token operator">=</span>
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Prism4jSyntaxHighlight<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span>Prism4j<span class="token punctuation">,</span> Prism4jTheme<span class="token punctuation">,</span> String<span class="token punctuation">)</span><span class="token punctuation">;</span>
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</code></pre></div><p>Generally obtaining a <code>Prism4j</code> instance is pretty easy:</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">final</span> Prism4j prism4j <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Prism4j</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">GrammarLocatorDef</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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</code></pre></div><p>Where <code>GrammarLocatorDef</code> is a generated grammar locator (if you use <code>prism4j-bundler</code> annotation processor)</p> <p><code>Prism4jTheme</code> is a specific type that is defined in this module (<code>prism4j</code> doesn't know anything about rendering). It has 2 implementations:</p> <ul><li><code>Prism4jThemeDefault</code></li> <li><code>Prism4jThemeDarkula</code></li></ul> <p>Both of them can be obtained via factory method <code>create</code>:</p> <ul><li><code>Prism4jThemeDefault.create()</code></li> <li><code>Prism4jThemeDarkula.create()</code></li></ul> <p>But of cause nothing is stopping you from defining your own theme:</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">interface</span> <span class="token class-name">Prism4jTheme</span> <span class="token punctuation">{</span>
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<span class="token annotation punctuation">@ColorInt</span>
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<span class="token keyword">int</span> <span class="token function">background</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token annotation punctuation">@ColorInt</span>
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<span class="token keyword">int</span> <span class="token function">textColor</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token keyword">void</span> <span class="token function">apply</span><span class="token punctuation">(</span>
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<span class="token annotation punctuation">@NonNull</span> String language<span class="token punctuation">,</span>
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<span class="token annotation punctuation">@NonNull</span> Prism4j<span class="token punctuation">.</span>Syntax syntax<span class="token punctuation">,</span>
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<span class="token annotation punctuation">@NonNull</span> SpannableStringBuilder builder<span class="token punctuation">,</span>
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<span class="token keyword">int</span> start<span class="token punctuation">,</span>
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<span class="token keyword">int</span> end
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<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span>
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</code></pre></div><div class="tip custom-block"><p class="custom-block-title">TIP</p> <p>You can extend <code>Prism4jThemeBase</code> which has some helper methods</p></div></div> <div class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">6/17/2019, 2:08:33 PM</span></div></div> <div class="page-nav"><p class="inner"><span class="prev">
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