33 lines
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2.2 KiB
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33 lines
No EOL
2.2 KiB
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<title>Regex.group — Ludic</title>
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<meta name="description" content="The text of capture group n (group 0 is the whole match); empty if unset.">
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<header class="nav"><div class="wrap nav-in"><a class="brand" href="index.html"><span class="logo">L</span> Ludic</a><button class="nav-toggle" aria-label="Toggle menu" aria-expanded="false">☰</button><nav class="nav-links"><a href="index.html">Home</a><a href="api.html">API Reference</a><a class="nav-cta" href="https://git.workshopsoft.io/workshopsoft/ludic">Source ↗</a></nav></div></header>
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<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-regex.html">Regex</a> <span>›</span> <span class="here">Regex.group</span></div>
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<div class="item-head">
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<span class="kind-badge kind-method">method</span>
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<h1 id="top">Regex.group</h1>
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</div>
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<code class="sig">Regex.group(match, n) -> string</code>
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<div class="desc"><p>Returns the substring captured by group <code>n</code> of <code>match</code> — group <code>0</code> is the whole match, <code>1</code> the first parenthesized group, and so on. Returns an empty string if the group did not participate in the match.</p></div>
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<div class="params"><h2>Parameters</h2><div class="param" id="param-match"><code class="pname">match</code><span class="pdesc">a <code>Match</code> from <code>Regex.find</code> / <code>Regex.exec</code> / <code>Regex.next</code></span></div><div class="param" id="param-n"><code class="pname">n</code><span class="pdesc">the group number (0 = whole match)</span></div></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Demo {
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entry {
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let m = Regex.find("key=value", "(\\w+)=(\\w+)")
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print(Regex.group(m, 2))
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}
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}</pre></div>
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