[#B0FB7E975E9642424B8AA33E9BE07A779B3D780D]

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    <div>
        <h2>unreserved_chars</h2>
        <p><span>The unreserved character set</span></p>


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    <div>
        <h3>Synopsis</h3>
        <div>
            <code>
                            </code>
        </div>
        <pre class="source-code cpp">
            constexpr
grammar::lut_chars const unreserved_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    "abcdefghijklmnopqrstuvwxyz"
    "0123456789"
    "-._~";
        </pre>
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    <div>
        <h3>Description</h3>
        <h3>Example</h3>
<p><span>Character sets are used with rules and</span> <span>the functions</span>
<span>grammar::find_if</span>
<span>and</span>
<span>grammar::find_if_not</span>
<span>.</span></p>

<code>
system::result< decode_view > rv = grammar::parse( "Program%20Files", pct_encoded_rule( unreserved_chars ) );
</code>
<h3>BNF</h3>
<code>
unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
</code>
<h3>Specification</h3>
<li><a href="https://datatracker.ietf.org/doc/html/rfc3986#section-2.3">2.3. Unreserved Characters (rfc3986)</a></li>

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