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nom 0.3.9

A byte oriented, zero copy, parser combinators library
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<h1 class='fqn'><span class='in-band'><a href='index.html'>nom</a>::<wbr><a class='macro' href=''>named!</a></span><span class='out-of-band'><span id='render-detail'>
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<pre class='rust macro'>
<span class='macro'>macro_rules</span><span class='macro'>!</span> <span class='ident'>named</span> (
    (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span>( <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>:<span class='ident'>ty</span> ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span>:<span class='ident'>ty</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span>:<span class='macro'>ident</span><span class='macro'>!</span>( $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>:<span class='ident'>tt</span>)<span class='op'>*</span> )) <span class='op'>=&gt;</span> (
        <span class='kw'>fn</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>( <span class='ident'>i</span>: <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span> ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>crate</span>::<span class='ident'>IResult</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span><span class='op'>&gt;</span> {
            <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span><span class='op'>!</span>(<span class='ident'>i</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>)<span class='op'>*</span>)
        }
    );
    (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span><span class='op'>&lt;</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>:<span class='ident'>ty</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span>:<span class='ident'>ty</span><span class='op'>&gt;</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span>:<span class='macro'>ident</span><span class='macro'>!</span>( $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>:<span class='ident'>tt</span>)<span class='op'>*</span> )) <span class='op'>=&gt;</span> (
        <span class='kw'>fn</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>( <span class='ident'>i</span>: <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span> ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>crate</span>::<span class='ident'>IResult</span><span class='op'>&lt;</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span><span class='op'>&gt;</span> {
            <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span><span class='op'>!</span>(<span class='ident'>i</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>)<span class='op'>*</span>)
        }
    );
    (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span><span class='op'>&lt;</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span>:<span class='ident'>ty</span><span class='op'>&gt;</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span>:<span class='macro'>ident</span><span class='macro'>!</span>( $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>:<span class='ident'>tt</span>)<span class='op'>*</span> )) <span class='op'>=&gt;</span> (
        <span class='kw'>fn</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>( <span class='ident'>i</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span>[<span class='ident'>u8</span>] ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>crate</span>::<span class='ident'>IResult</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>, <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> [<span class='ident'>u8</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span><span class='op'>&gt;</span> {
            <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span><span class='op'>!</span>(<span class='ident'>i</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>)<span class='op'>*</span>)
        }
    );
    (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span><span class='op'>&lt;</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>life</span>:<span class='ident'>item</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>:<span class='ident'>ty</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span>:<span class='ident'>ty</span><span class='op'>&gt;</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span>:<span class='macro'>ident</span><span class='macro'>!</span>( $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>:<span class='ident'>tt</span>)<span class='op'>*</span> )) <span class='op'>=&gt;</span> (
        <span class='kw'>fn</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span><span class='op'>&lt;</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>life</span><span class='op'>&gt;</span>( <span class='ident'>i</span>: <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span> ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>crate</span>::<span class='ident'>IResult</span><span class='op'>&lt;</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>life</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span><span class='op'>&gt;</span> {
            <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span><span class='op'>!</span>(<span class='ident'>i</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>)<span class='op'>*</span>)
        }
    );
    (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span>:<span class='macro'>ident</span><span class='macro'>!</span>( $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>:<span class='ident'>tt</span>)<span class='op'>*</span> )) <span class='op'>=&gt;</span> (
        <span class='kw'>fn</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>( <span class='ident'>i</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> [<span class='ident'>u8</span>] ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>crate</span>::<span class='ident'>IResult</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>,<span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]<span class='op'>&gt;</span> {
            <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span><span class='op'>!</span>(<span class='ident'>i</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>)<span class='op'>*</span>)
        }
    );
    (<span class='kw'>pub</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span>( <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>:<span class='ident'>ty</span> ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span>:<span class='ident'>ty</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span>:<span class='macro'>ident</span><span class='macro'>!</span>( $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>:<span class='ident'>tt</span>)<span class='op'>*</span> )) <span class='op'>=&gt;</span> (
        <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>( <span class='ident'>i</span>: <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span> ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>crate</span>::<span class='ident'>IResult</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span><span class='op'>&gt;</span> {
            <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span><span class='op'>!</span>(<span class='ident'>i</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>)<span class='op'>*</span>)
        }
    );
    (<span class='kw'>pub</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span><span class='op'>&lt;</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>:<span class='ident'>ty</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span>:<span class='ident'>ty</span><span class='op'>&gt;</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span>:<span class='macro'>ident</span><span class='macro'>!</span>( $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>:<span class='ident'>tt</span>)<span class='op'>*</span> )) <span class='op'>=&gt;</span> (
        <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>( <span class='ident'>i</span>: <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span> ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>crate</span>::<span class='ident'>IResult</span><span class='op'>&lt;</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>o</span><span class='op'>&gt;</span> {
            <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span><span class='op'>!</span>(<span class='ident'>i</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>)<span class='op'>*</span>)
        }
    );
    (<span class='kw'>pub</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span>:<span class='ident'>ident</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span>:<span class='macro'>ident</span><span class='macro'>!</span>( $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>:<span class='ident'>tt</span>)<span class='op'>*</span> )) <span class='op'>=&gt;</span> (
        <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>name</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span><span class='op'>&gt;</span>( <span class='ident'>i</span>: <span class='kw-2'>&amp;</span><span class='lifetime'>&#39;a</span> [<span class='ident'>u8</span>] ) <span class='op'>-&gt;</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>crate</span>::<span class='ident'>IResult</span><span class='op'>&lt;</span><span class='lifetime'>&#39;a</span>,<span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]<span class='op'>&gt;</span> {
            <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>submac</span><span class='op'>!</span>(<span class='ident'>i</span>, $(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>args</span>)<span class='op'>*</span>)
        }
    );
);
</pre>
<div class='docblock'><p>Makes a function from a parser combination</p>

<p>The type can be set up if the compiler needs
more information</p>
<pre class='rust rust-example-rendered'>
<span class='macro'>named</span><span class='macro'>!</span>(<span class='ident'>my_function</span>( <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>] ) <span class='op'>-&gt;</span> <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='macro'>tag</span><span class='macro'>!</span>(<span class='string'>&quot;abcd&quot;</span>));
<span class='comment'>// first type parameter is input, second is output</span>
<span class='macro'>named</span><span class='macro'>!</span>(<span class='ident'>my_function</span><span class='op'>&lt;</span><span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]<span class='op'>&gt;</span>,     <span class='macro'>tag</span><span class='macro'>!</span>(<span class='string'>&quot;abcd&quot;</span>));
<span class='comment'>// will have &amp;[u8] as input type, &amp;[u8] as output type</span>
<span class='macro'>named</span><span class='macro'>!</span>(<span class='ident'>my_function</span>,                   <span class='macro'>tag</span><span class='macro'>!</span>(<span class='string'>&quot;abcd&quot;</span>));
<span class='comment'>// will use &amp;[u8] as input type (use this if the compiler</span>
<span class='comment'>// complains about lifetime issues</span>
<span class='macro'>named</span><span class='macro'>!</span>(<span class='ident'>my_function</span><span class='op'>&lt;</span><span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>]<span class='op'>&gt;</span>,            <span class='macro'>tag</span><span class='macro'>!</span>(<span class='string'>&quot;abcd&quot;</span>));
<span class='comment'>//prefix them with &#39;pub&#39; to make the functions public</span>
<span class='macro'>named</span><span class='macro'>!</span>(<span class='kw'>pub</span> <span class='ident'>my_function</span>,               <span class='macro'>tag</span><span class='macro'>!</span>(<span class='string'>&quot;abcd&quot;</span>));
</pre>
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