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32 lines
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<title>Unicode.is_valid_utf8 — Ludic</title>
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<meta name="description" content="Is a string well-formed UTF-8?">
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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-unicode.html">Unicode</a> <span>›</span> <span class="here">Unicode.is_valid_utf8</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">Unicode.is_valid_utf8</h1>
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</div>
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<code class="sig">Unicode.is_valid_utf8(s) -> bool</code>
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<div class="desc"><p>Strictly validates that the bytes are well-formed UTF-8: correct continuation bytes, no overlong encodings, no surrogate code points, and nothing above U+10FFFF. Use it as a gate on untrusted input — a chat line, a downloaded file, a mod's data — before treating it as text.</p></div>
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<div class="params"><h2>Parameters</h2><div class="param" id="param-s"><code class="pname">s</code><span class="pdesc">the bytes to validate</span></div></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Valid {
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entry {
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if Unicode.is_valid_utf8("safe text") { print(1) } else { print(0) }
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}
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}</pre></div>
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