175 lines
45 KiB
HTML
175 lines
45 KiB
HTML
<!DOCTYPE html>
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<html lang="en-US">
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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">
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<title>HTML | Markwon</title>
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<meta name="description" content="Android markdown library based on commonmark specification that renders markdown as system-native Spannables (no WebView)">
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<link rel="apple-touch-icon" sizes="180x180" href="/Markwon/apple-touch-icon.png?v=1">
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<link rel="icon" type="image/png" sizes="16x16" href="/Markwon/favicon-16x16.png?v=1">
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<link rel="icon" href="/Markwon/favicon.ico?v=1">
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<link rel="icon" type="image/png" sizes="32x32" href="/Markwon/favicon-32x32.png?v=1">
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<link rel="manifest" href="/Markwon/manifest.json?v=1">
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<meta name="keywords" content="android,markdown,library,spannable,markwon,commonmark">
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<link rel="preload" href="/Markwon/assets/css/0.styles.3fbbce9e.css" as="style"><link rel="preload" href="/Markwon/assets/js/app.bdfd2bc6.js" as="script"><link rel="preload" href="/Markwon/assets/js/71.c3fcfb65.js" as="script"><link rel="preload" href="/Markwon/assets/js/3.eaac0903.js" as="script"><link rel="preload" href="/Markwon/assets/js/16.076204be.js" as="script"><link rel="preload" href="/Markwon/assets/js/9.7d018a47.js" as="script"><link rel="prefetch" href="/Markwon/assets/js/42.d7ca0851.js"><link rel="prefetch" href="/Markwon/assets/js/2.81714ae9.js"><link rel="prefetch" href="/Markwon/assets/js/4.31fa5321.js"><link rel="prefetch" href="/Markwon/assets/js/5.6234b6a3.js"><link rel="prefetch" href="/Markwon/assets/js/6.ef59e46d.js"><link rel="prefetch" href="/Markwon/assets/js/7.e9b37c71.js"><link rel="prefetch" href="/Markwon/assets/js/8.9dff76ac.js"><link rel="prefetch" href="/Markwon/assets/js/10.99fc608c.js"><link rel="prefetch" href="/Markwon/assets/js/11.cdc173e9.js"><link rel="prefetch" href="/Markwon/assets/js/12.98308542.js"><link rel="prefetch" href="/Markwon/assets/js/13.83b81b01.js"><link rel="prefetch" href="/Markwon/assets/js/14.0e5fe31e.js"><link rel="prefetch" href="/Markwon/assets/js/15.724f3dc4.js"><link rel="prefetch" href="/Markwon/assets/js/17.9412daf3.js"><link rel="prefetch" href="/Markwon/assets/js/18.187f0167.js"><link rel="prefetch" href="/Markwon/assets/js/19.af3507a7.js"><link rel="prefetch" href="/Markwon/assets/js/20.dc11e22f.js"><link rel="prefetch" href="/Markwon/assets/js/21.393a507f.js"><link rel="prefetch" href="/Markwon/assets/js/22.a6ac92c5.js"><link rel="prefetch" href="/Markwon/assets/js/23.9edcc0b3.js"><link rel="prefetch" href="/Markwon/assets/js/24.073942b3.js"><link rel="prefetch" href="/Markwon/assets/js/25.507307eb.js"><link rel="prefetch" href="/Markwon/assets/js/26.87c7e366.js"><link rel="prefetch" href="/Markwon/assets/js/27.a6f7a96f.js"><link rel="prefetch" href="/Markwon/assets/js/28.c0caacb4.js"><link rel="prefetch" href="/Markwon/assets/js/29.230c7321.js"><link rel="prefetch" href="/Markwon/assets/js/30.45e92827.js"><link rel="prefetch" href="/Markwon/assets/js/31.3a2ff699.js"><link rel="prefetch" href="/Markwon/assets/js/32.662e2ab9.js"><link rel="prefetch" href="/Markwon/assets/js/33.d83b2cb7.js"><link rel="prefetch" href="/Markwon/assets/js/34.4b19ef85.js"><link rel="prefetch" href="/Markwon/assets/js/35.1684da38.js"><link rel="prefetch" href="/Markwon/assets/js/36.9852715d.js"><link rel="prefetch" href="/Markwon/assets/js/37.e98b3352.js"><link rel="prefetch" href="/Markwon/assets/js/38.09771599.js"><link rel="prefetch" href="/Markwon/assets/js/39.37003a65.js"><link rel="prefetch" href="/Markwon/assets/js/40.bf595a01.js"><link rel="prefetch" href="/Markwon/assets/js/41.db50f781.js"><link rel="prefetch" href="/Markwon/assets/js/43.78500964.js"><link rel="prefetch" href="/Markwon/assets/js/44.60fec7f9.js"><link rel="prefetch" href="/Markwon/assets/js/45.78224b99.js"><link rel="prefetch" href="/Markwon/assets/js/46.9a7f306b.js"><link rel="prefetch" href="/Markwon/assets/js/47.42b56911.js"><link rel="prefetch" href="/Markwon/assets/js/48.cceb75d4.js"><link rel="prefetch" href="/Markwon/assets/js/49.20507df8.js"><link rel="prefetch" href="/Markwon/assets/js/50.f89d88b1.js"><link rel="prefetch" href="/Markwon/assets/js/51.d7ac54ce.js"><link rel="prefetch" href="/Markwon/assets/js/52.394ded4e.js"><link rel="prefetch" href="/Markwon/assets/js/53.144cf408.js"><link rel="prefetch" href="/Markwon/assets/js/54.0f936c4f.js"><link rel="prefetch" href="/Markwon/assets/js/55.5b7382a9.js"><link rel="prefetch" href="/Markwon/assets/js/56.1cf2f788.js"><link rel="prefetch" href="/Markwon/assets/js/57.1b7dddc1.js"><link rel="prefetch" href="/Markwon/assets/js/58.5271aaaf.js"><link rel="prefetch" href="/Markwon/assets/js/59.7ef6ac9a.js"><link rel="prefetch" href="/Markwon/assets/js/60.9bbfa80f.js"><link rel="prefetch" href="/Markwon/assets/js/61.628c1500.js"><link rel="prefetch" href="/Markwon/assets/js/62.d4d206d7.js"><link rel="prefetch" href="/Markwon/assets/js/63.8ccf8bfc.js"><link rel="prefetch" href="/Markwon/assets/js/64.7672a52b.js"><link rel="prefetch" href="/Markwon/assets/js/65.c4f000dc.js"><link rel="prefetch" href="/Markwon/assets/js/66.4a29728a.js"><link rel="prefetch" href="/Markwon/assets/js/67.7331c7c7.js"><link rel="prefetch" href="/Markwon/assets/js/68.9d1d2ae1.js"><link rel="prefetch" href="/Markwon/assets/js/69.fd31295a.js"><link rel="prefetch" href="/Markwon/assets/js/70.fac8f892.js"><link rel="prefetch" href="/Markwon/assets/js/72.d2389fc9.js"><link rel="prefetch" href="/Markwon/assets/js/73.6ce21170.js"><link rel="prefetch" href="/Markwon/assets/js/74.2ad91074.js"><link rel="prefetch" href="/Markwon/assets/js/75.1d59d27c.js"><link rel="prefetch" href="/Markwon/assets/js/76.f3844391.js"><link rel="prefetch" href="/Markwon/assets/js/77.4e5a82c3.js"><link rel="prefetch" href="/Markwon/assets/js/78.ff7203ee.js"><link rel="prefetch" href="/Markwon/assets/js/79.b1718a0d.js"><link rel="prefetch" href="/Markwon/assets/js/80.802db0eb.js"><link rel="prefetch" href="/Markwon/assets/js/81.9edd3cd9.js"><link rel="prefetch" href="/Markwon/assets/js/82.52f04a34.js"><link rel="prefetch" href="/Markwon/assets/js/83.3bd397c0.js"><link rel="prefetch" href="/Markwon/assets/js/84.a9af8a34.js"><link rel="prefetch" href="/Markwon/assets/js/85.2a0d8d40.js">
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<link rel="stylesheet" href="/Markwon/assets/css/0.styles.3fbbce9e.css">
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</head>
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<body>
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<div id="app" data-server-rendered="true"><div class="theme-container"><header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/Markwon/" class="home-link router-link-active"><!----> <span class="site-name">Markwon</span></a> <div class="links" style="max-width:nullpx;"><div class="search-box"><input aria-label="Search" autocomplete="off" spellcheck="false" value=""> <!----></div> <nav class="nav-links can-hide"><div class="nav-item"><a href="/Markwon/docs/v4/install.html" class="nav-link">Install</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">API Version</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><h4>Latest</h4> <ul class="dropdown-subitem-wrapper"><li class="dropdown-subitem"><a href="/Markwon/" class="nav-link">4.x.x</a></li></ul></li><li class="dropdown-item"><h4>Legacy</h4> <ul class="dropdown-subitem-wrapper"><li class="dropdown-subitem"><a href="/Markwon/docs/v3/install.html" class="nav-link">3.x.x</a></li><li class="dropdown-subitem"><a href="/Markwon/docs/v2/" class="nav-link">2.x.x</a></li></ul></li></ul></div></div><div class="nav-item"><a href="https://github.com/noties/Markwon/blob/master/CHANGELOG.md" target="_blank" rel="noopener noreferrer" class="nav-link external">
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Changelog
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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><div class="nav-item"><a href="https://github.com/noties/Markwon" target="_blank" rel="noopener noreferrer" class="nav-link external">
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Github
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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></div></header> <div class="sidebar-mask"></div> <div class="sidebar"><nav class="nav-links"><div class="nav-item"><a href="/Markwon/docs/v4/install.html" class="nav-link">Install</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">API Version</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><h4>Latest</h4> <ul class="dropdown-subitem-wrapper"><li class="dropdown-subitem"><a href="/Markwon/" class="nav-link">4.x.x</a></li></ul></li><li class="dropdown-item"><h4>Legacy</h4> <ul class="dropdown-subitem-wrapper"><li class="dropdown-subitem"><a href="/Markwon/docs/v3/install.html" class="nav-link">3.x.x</a></li><li class="dropdown-subitem"><a href="/Markwon/docs/v2/" class="nav-link">2.x.x</a></li></ul></li></ul></div></div><div class="nav-item"><a href="https://github.com/noties/Markwon/blob/master/CHANGELOG.md" target="_blank" rel="noopener noreferrer" class="nav-link external">
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Changelog
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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><div class="nav-item"><a href="https://github.com/noties/Markwon" target="_blank" rel="noopener noreferrer" class="nav-link external">
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Github
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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/" class="sidebar-link">Introduction</a></li><li><div class="sidebar-group"><p class="sidebar-heading"><span>Core</span> <!----></p> <ul class="sidebar-group-items"><li><a href="/Markwon/docs/v4/core/getting-started.html" class="sidebar-link">Getting started</a></li><li><a href="/Markwon/docs/v4/core/plugins.html" class="sidebar-link">Plugins</a></li><li><a href="/Markwon/docs/v4/core/registry.html" class="sidebar-link">Registry</a></li><li><a href="/Markwon/docs/v4/core/theme.html" class="sidebar-link">Theme</a></li><li><a href="/Markwon/docs/v4/core/configuration.html" class="sidebar-link">Configuration</a></li><li><a href="/Markwon/docs/v4/core/visitor.html" class="sidebar-link">Visitor</a></li><li><a href="/Markwon/docs/v4/core/spans-factory.html" class="sidebar-link">Spans Factory</a></li><li><a href="/Markwon/docs/v4/core/core-plugin.html" class="sidebar-link">Core plugin</a></li><li><a href="/Markwon/docs/v4/core/movement-method-plugin.html" class="sidebar-link">Movement method plugin</a></li><li><a href="/Markwon/docs/v4/core/render-props.html" class="sidebar-link">RenderProps</a></li><li><a href="/Markwon/docs/v4/core/text-setter.html" class="sidebar-link">TextSetter</a></li></ul></div></li><li><a href="/Markwon/docs/v4/editor/" class="sidebar-link">Editor</a></li><li><a href="/Markwon/docs/v4/ext-latex/" class="sidebar-link">LaTeX extension</a></li><li><a href="/Markwon/docs/v4/ext-strikethrough/" class="sidebar-link">Strikethrough extension</a></li><li><a href="/Markwon/docs/v4/ext-tables/" class="sidebar-link">Tables extension</a></li><li><a href="/Markwon/docs/v4/ext-tasklist/" class="sidebar-link">Task list extension</a></li><li><a href="/Markwon/docs/v4/html/" class="active sidebar-link">HTML</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/Markwon/docs/v4/html/#predefined-taghandlers" class="sidebar-link">Predefined TagHandlers</a></li><li class="sidebar-sub-header"><a href="/Markwon/docs/v4/html/#taghandler" class="sidebar-link">TagHandler</a></li></ul></li><li><a href="/Markwon/docs/v4/image/" class="sidebar-link">Image</a></li><li><a href="/Markwon/docs/v4/image-coil/" class="sidebar-link">Image Coil</a></li><li><a href="/Markwon/docs/v4/image-glide/" class="sidebar-link">Image Glide</a></li><li><a href="/Markwon/docs/v4/image-picasso/" class="sidebar-link">Image Picasso</a></li><li><a href="/Markwon/docs/v4/inline-parser/" class="sidebar-link">Inline Parser</a></li><li><a href="/Markwon/docs/v4/linkify/" class="sidebar-link">Linkify</a></li><li><a href="/Markwon/docs/v4/recycler/" class="sidebar-link">Recycler</a></li><li><a href="/Markwon/docs/v4/recycler-table/" class="sidebar-link">Recycler Table</a></li><li><a href="/Markwon/docs/v4/simple-ext/" class="sidebar-link">Simple Extension</a></li><li><a href="/Markwon/docs/v4/syntax-highlight/" class="sidebar-link">Syntax highlight</a></li><li><a href="/Markwon/docs/v4/recipes.html" class="sidebar-link">Recipes</a></li></ul> </div> <div class="page"> <div class="content"><h1 id="html"><a href="#html" aria-hidden="true" class="header-anchor">#</a> HTML</h1> <a href="http://search.maven.org/#search|ga|1|g%3A%22io.noties.markwon%22%20AND%20a%3A%22html%22"><img src="https://img.shields.io/maven-central/v/io.noties.markwon/html.svg?label=html" alt="html"></a> <p>This artifact encapsulates HTML parsing from the core artifact and provides
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few predefined <code>TagHandlers</code></p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">final</span> Markwon markwon <span class="token operator">=</span> Markwon<span class="token punctuation">.</span><span class="token function">builder</span><span class="token punctuation">(</span>context<span class="token punctuation">)</span>
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<span class="token punctuation">.</span><span class="token function">usePlugin</span><span class="token punctuation">(</span>HtmlPlugin<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
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<span class="token punctuation">.</span><span class="token function">build</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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</code></pre></div><p>As this artifact brings modified <a href="https://github.com/jhy/jsoup" target="_blank" rel="noopener noreferrer">jsoup<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> library
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it was moved to a standalone module in order to minimize dependencies and unused code
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in applications that does not require HTML render capabilities.</p> <p>Before <span class="badge tip top" data-v-099ab69c>2.0.0</span> <code>Markwon</code> used android <code>Html</code> class for parsing and
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rendering. Unfortunately, according to markdown specification, markdown can contain
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HTML in <em>unpredictable</em> way if rendered <em>outside</em> of browser. For example:</p> <div class="language-markdown extra-class"><div class="highlight-lines"><br><br><br><div class="highlighted"> </div><br></div><pre class="language-markdown"><code><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>i</span><span class="token punctuation">></span></span>
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Hello from italics tag
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<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>i</span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>b</span><span class="token punctuation">></span></span>bold><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>b</span><span class="token punctuation">></span></span>
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</code></pre></div><p>This snippet could be represented as:</p> <ul><li>HtmlBlock (<code><i>\nHello from italics tag</code>)</li> <li>HtmlInline (<code><i></code>)</li> <li>HtmlInline (<code><b></code>)</li> <li>Text (<code>bold</code>)</li> <li>HtmlInline (<code></b></code>)</li></ul> <div class="tip custom-block"><p class="custom-block-title">A bit of background</p> <br> <a href="https://github.com/noties/Markwon/issues/52" target="_blank" rel="noopener noreferrer">This issue<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> had brought attention to differences between HTML & commonmark implementations. <br><br></div> <p>Unfortunately Android <code>HTML</code> class cannot parse a <em>fragment</em> of HTML to later
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be included in a bigger set of content. This is why the decision was made to bring
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HTML parsing <em>in-markwon-house</em></p> <h2 id="predefined-taghandlers"><a href="#predefined-taghandlers" aria-hidden="true" class="header-anchor">#</a> Predefined TagHandlers</h2> <ul><li><code><img></code></li> <li><code><a></code></li> <li><code><blockquote></code></li> <li><code><sub></code></li> <li><code><sup></code></li> <li><code><b>, <strong></code></li> <li><code><s>, <del></code></li> <li><code><u>, <ins></code></li> <li><code><ul>, <ol></code></li> <li><code><i>, <cite>, <em>, <dfn></code></li> <li><code><h1>, <h2>, <h3>, <h4>, <h5>, <h6></code></li></ul> <div class="tip custom-block"><p class="custom-block-title">TIP</p> <p>All predefined tag handlers will use styling spans for native markdown content.
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So, if your <code>Markwon</code> instance was configured to, for example, render Emphasis
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nodes as a <span style="color: #FF0000">red text</span> then HTML tag handler will
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use the same span. This includes images, links, UrlResolver, LinkProcessor, etc</p></div> <hr> <p>Staring with <span class="badge tip top" data-v-099ab69c>4.0.0</span> you can exclude all default tag handlers:</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token punctuation">.</span><span class="token function">usePlugin</span><span class="token punctuation">(</span>HtmlPlugin<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">HtmlPlugin<span class="token punctuation">.</span>HtmlConfigure</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">@Override</span>
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<span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">configureHtml</span><span class="token punctuation">(</span><span class="token annotation punctuation">@NonNull</span> HtmlPlugin plugin<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
plugin<span class="token punctuation">.</span><span class="token function">excludeDefaults</span><span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
|
||
</code></pre></div><p>or via plugin:</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token punctuation">.</span><span class="token function">usePlugin</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">AbstractMarkwonPlugin</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token annotation punctuation">@Override</span>
|
||
<span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">configure</span><span class="token punctuation">(</span><span class="token annotation punctuation">@NonNull</span> Registry registry<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
registry<span class="token punctuation">.</span><span class="token function">require</span><span class="token punctuation">(</span>HtmlPlugin<span class="token punctuation">.</span><span class="token keyword">class</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">Action</span><span class="token generics function"><span class="token punctuation"><</span>HtmlPlugin<span class="token punctuation">></span></span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token annotation punctuation">@Override</span>
|
||
<span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">apply</span><span class="token punctuation">(</span><span class="token annotation punctuation">@NonNull</span> HtmlPlugin htmlPlugin<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
htmlPlugin<span class="token punctuation">.</span><span class="token function">excludeDefaults</span><span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">)</span>
|
||
</code></pre></div><p>If you wish to exclude some of them <code>TagHandlerNoOp</code> can be used:</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token punctuation">.</span><span class="token function">usePlugin</span><span class="token punctuation">(</span>HtmlPlugin<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">HtmlPlugin<span class="token punctuation">.</span>HtmlConfigure</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token annotation punctuation">@Override</span>
|
||
<span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">configureHtml</span><span class="token punctuation">(</span><span class="token annotation punctuation">@NonNull</span> HtmlPlugin plugin<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
plugin<span class="token punctuation">.</span><span class="token function">addHandler</span><span class="token punctuation">(</span>TagHandlerNoOp<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token string">"h4"</span><span class="token punctuation">,</span> <span class="token string">"h5"</span><span class="token punctuation">,</span> <span class="token string">"h6"</span><span class="token punctuation">,</span> <span class="token string">"img"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
|
||
</code></pre></div><h2 id="taghandler"><a href="#taghandler" aria-hidden="true" class="header-anchor">#</a> TagHandler</h2> <p>To define a tag-handler that applies style for the whole tag content (from start to end),
|
||
a <code>SimpleTagHandler</code> can be used. For example, let's define <code><align></code> tag, which can be used
|
||
like this:</p> <ul><li><code><align center>centered text</align></code></li> <li><code><align end>this should be aligned at the end (right for LTR locales)</align></code></li> <li><code><align>regular alignment</align></code></li></ul> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">AlignTagHandler</span> <span class="token keyword">extends</span> <span class="token class-name">SimpleTagHandler</span> <span class="token punctuation">{</span>
|
||
|
||
<span class="token annotation punctuation">@Nullable</span>
|
||
<span class="token annotation punctuation">@Override</span>
|
||
<span class="token keyword">public</span> Object <span class="token function">getSpans</span><span class="token punctuation">(</span>
|
||
<span class="token annotation punctuation">@NonNull</span> MarkwonConfiguration configuration<span class="token punctuation">,</span>
|
||
<span class="token annotation punctuation">@NonNull</span> RenderProps renderProps<span class="token punctuation">,</span>
|
||
<span class="token annotation punctuation">@NonNull</span> HtmlTag tag<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
|
||
<span class="token keyword">final</span> Layout<span class="token punctuation">.</span>Alignment alignment<span class="token punctuation">;</span>
|
||
|
||
<span class="token comment">// html attribute without value, <align center></align></span>
|
||
<span class="token keyword">if</span> <span class="token punctuation">(</span>tag<span class="token punctuation">.</span><span class="token function">attributes</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">containsKey</span><span class="token punctuation">(</span><span class="token string">"center"</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
alignment <span class="token operator">=</span> Layout<span class="token punctuation">.</span>Alignment<span class="token punctuation">.</span>ALIGN_CENTER<span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token keyword">if</span> <span class="token punctuation">(</span>tag<span class="token punctuation">.</span><span class="token function">attributes</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">containsKey</span><span class="token punctuation">(</span><span class="token string">"end"</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
alignment <span class="token operator">=</span> Layout<span class="token punctuation">.</span>Alignment<span class="token punctuation">.</span>ALIGN_OPPOSITE<span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
|
||
<span class="token comment">// empty value or any other will make regular alignment</span>
|
||
alignment <span class="token operator">=</span> Layout<span class="token punctuation">.</span>Alignment<span class="token punctuation">.</span>ALIGN_NORMAL<span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
|
||
<span class="token keyword">return</span> <span class="token keyword">new</span> <span class="token class-name">AlignmentSpan<span class="token punctuation">.</span>Standard</span><span class="token punctuation">(</span>alignment<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
|
||
<span class="token annotation punctuation">@NonNull</span>
|
||
<span class="token annotation punctuation">@Override</span>
|
||
<span class="token keyword">public</span> Collection<span class="token generics function"><span class="token punctuation"><</span>String<span class="token punctuation">></span></span> <span class="token function">supportedTags</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token keyword">return</span> Collections<span class="token punctuation">.</span><span class="token function">singleton</span><span class="token punctuation">(</span><span class="token string">"align"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span>
|
||
</code></pre></div><div class="tip custom-block"><p class="custom-block-title">TIP</p> <p><code>SimpleTagHandler</code> can return an array of spans from <code>getSpans</code> method</p></div> <p>Then register <code>AlignTagHandler</code>:</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">final</span> Markwon markwon <span class="token operator">=</span> Markwon<span class="token punctuation">.</span><span class="token function">builder</span><span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">)</span>
|
||
<span class="token punctuation">.</span><span class="token function">usePlugin</span><span class="token punctuation">(</span>HtmlPlugin<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
|
||
<span class="token punctuation">.</span><span class="token function">usePlugin</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">AbstractMarkwonPlugin</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token annotation punctuation">@Override</span>
|
||
<span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">configure</span><span class="token punctuation">(</span><span class="token annotation punctuation">@NonNull</span> Registry registry<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
registry<span class="token punctuation">.</span><span class="token function">require</span><span class="token punctuation">(</span>HtmlPlugin<span class="token punctuation">.</span><span class="token keyword">class</span><span class="token punctuation">,</span> htmlPlugin <span class="token operator">-</span><span class="token operator">></span> htmlPlugin
|
||
<span class="token punctuation">.</span><span class="token function">addHandler</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">AlignTagHandler</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span><span class="token punctuation">)</span>
|
||
<span class="token punctuation">.</span><span class="token function">build</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</code></pre></div><p>or directly on <code>HtmlPlugin</code>:</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">final</span> Markwon markwon <span class="token operator">=</span> Markwon<span class="token punctuation">.</span><span class="token function">builder</span><span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">)</span>
|
||
<span class="token punctuation">.</span><span class="token function">usePlugin</span><span class="token punctuation">(</span>HtmlPlugin<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span>plugin <span class="token operator">-</span><span class="token operator">></span> plugin<span class="token punctuation">.</span><span class="token function">addHandler</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">AlignTagHandler</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
|
||
<span class="token punctuation">.</span><span class="token function">build</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
</code></pre></div><hr> <p>If a tag requires special handling <code>TagHandler</code> can be used directly. For example
|
||
let's define an <code><enhance></code> tag with <code>start</code> and <code>end</code> arguments, that will mark
|
||
start and end positions of the text that needs to be enlarged:</p> <div class="language-html extra-class"><pre class="language-html"><code><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>enhance</span> <span class="token attr-name">start</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>5<span class="token punctuation">"</span></span> <span class="token attr-name">end</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">"</span>12<span class="token punctuation">"</span></span><span class="token punctuation">></span></span>This is text that must be enhanced, at least a part of it<span class="token tag"><span class="token tag"><span class="token punctuation"></</span>enhance</span><span class="token punctuation">></span></span>
|
||
</code></pre></div><div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">EnhanceTagHandler</span> <span class="token keyword">extends</span> <span class="token class-name">TagHandler</span> <span class="token punctuation">{</span>
|
||
|
||
<span class="token keyword">private</span> <span class="token keyword">final</span> <span class="token keyword">int</span> enhanceTextSize<span class="token punctuation">;</span>
|
||
|
||
<span class="token function">EnhanceTagHandler</span><span class="token punctuation">(</span><span class="token annotation punctuation">@Px</span> <span class="token keyword">int</span> enhanceTextSize<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token keyword">this</span><span class="token punctuation">.</span>enhanceTextSize <span class="token operator">=</span> enhanceTextSize<span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
|
||
<span class="token annotation punctuation">@Override</span>
|
||
<span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">handle</span><span class="token punctuation">(</span>
|
||
<span class="token annotation punctuation">@NonNull</span> MarkwonVisitor visitor<span class="token punctuation">,</span>
|
||
<span class="token annotation punctuation">@NonNull</span> MarkwonHtmlRenderer renderer<span class="token punctuation">,</span>
|
||
<span class="token annotation punctuation">@NonNull</span> HtmlTag tag<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
|
||
<span class="token comment">// we require start and end to be present</span>
|
||
<span class="token keyword">final</span> <span class="token keyword">int</span> start <span class="token operator">=</span> <span class="token function">parsePosition</span><span class="token punctuation">(</span>tag<span class="token punctuation">.</span><span class="token function">attributes</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">"start"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token keyword">final</span> <span class="token keyword">int</span> end <span class="token operator">=</span> <span class="token function">parsePosition</span><span class="token punctuation">(</span>tag<span class="token punctuation">.</span><span class="token function">attributes</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">"end"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
|
||
<span class="token keyword">if</span> <span class="token punctuation">(</span>start <span class="token operator">></span> <span class="token operator">-</span><span class="token number">1</span> <span class="token operator">&&</span> end <span class="token operator">></span> <span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
visitor<span class="token punctuation">.</span><span class="token function">builder</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">setSpan</span><span class="token punctuation">(</span>
|
||
<span class="token keyword">new</span> <span class="token class-name">AbsoluteSizeSpan</span><span class="token punctuation">(</span>enhanceTextSize<span class="token punctuation">)</span><span class="token punctuation">,</span>
|
||
tag<span class="token punctuation">.</span><span class="token function">start</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">+</span> start<span class="token punctuation">,</span>
|
||
tag<span class="token punctuation">.</span><span class="token function">start</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">+</span> end
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span>
|
||
|
||
<span class="token annotation punctuation">@NonNull</span>
|
||
<span class="token annotation punctuation">@Override</span>
|
||
<span class="token keyword">public</span> Collection<span class="token generics function"><span class="token punctuation"><</span>String<span class="token punctuation">></span></span> <span class="token function">supportedTags</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token keyword">return</span> Collections<span class="token punctuation">.</span><span class="token function">singleton</span><span class="token punctuation">(</span><span class="token string">"enhance"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
|
||
<span class="token keyword">private</span> <span class="token keyword">static</span> <span class="token keyword">int</span> <span class="token function">parsePosition</span><span class="token punctuation">(</span><span class="token annotation punctuation">@Nullable</span> String value<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token keyword">int</span> position<span class="token punctuation">;</span>
|
||
<span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span>TextUtils<span class="token punctuation">.</span><span class="token function">isEmpty</span><span class="token punctuation">(</span>value<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
<span class="token keyword">try</span> <span class="token punctuation">{</span>
|
||
position <span class="token operator">=</span> Integer<span class="token punctuation">.</span><span class="token function">parseInt</span><span class="token punctuation">(</span>value<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">NumberFormatException</span> e<span class="token punctuation">)</span> <span class="token punctuation">{</span>
|
||
e<span class="token punctuation">.</span><span class="token function">printStackTrace</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
position <span class="token operator">=</span> <span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span>
|
||
position <span class="token operator">=</span> <span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token keyword">return</span> position<span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
|
||
<span class="token punctuation">}</span>
|
||
</code></pre></div></div> <div class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated: </span> <span class="time">6/24/2019, 1:47:44 PM</span></div></div> <div class="page-nav"><p class="inner"><span class="prev">
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