juniper/hyper/header/enum.Range.html

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2016-09-11 13:41:24 -05:00
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<h1 class='fqn'><span class='in-band'>Enum <a href='../index.html'>hyper</a>::<wbr><a href='index.html'>header</a>::<wbr><a class='enum' href=''>Range</a></span><span class='out-of-band'><span id='render-detail'>
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</span><a id='src-3885' class='srclink' href='../../src/hyper/header/common/range.rs.html#59-65' title='goto source code'>[src]</a></span></h1>
<pre class='rust enum'>pub enum Range {
Bytes(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='enum' href='../../hyper/header/enum.ByteRangeSpec.html' title='hyper::header::ByteRangeSpec'>ByteRangeSpec</a>&gt;),
Unregistered(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>),
}</pre><div class='docblock'><p><code>Range</code> header, defined in <a href="https://tools.ietf.org/html/rfc7233#section-3.1">RFC7233</a></p>
<p>The &quot;Range&quot; header field on a GET request modifies the method
semantics to request transfer of only one or more subranges of the
selected representation data, rather than the entire selected
representation data.</p>
<h1 id='abnf' class='section-header'><a href='#abnf'>ABNF</a></h1>
<pre><code class="language-plain">Range = byte-ranges-specifier / other-ranges-specifier
other-ranges-specifier = other-range-unit &quot;=&quot; other-range-set
other-range-set = 1*VCHAR
bytes-unit = &quot;bytes&quot;
byte-ranges-specifier = bytes-unit &quot;=&quot; byte-range-set
byte-range-set = 1#(byte-range-spec / suffix-byte-range-spec)
byte-range-spec = first-byte-pos &quot;-&quot; [last-byte-pos]
first-byte-pos = 1*DIGIT
last-byte-pos = 1*DIGIT
</code></pre>
<h1 id='example-values' class='section-header'><a href='#example-values'>Example values</a></h1>
<ul>
<li><code>bytes=1000-</code></li>
<li><code>bytes=-2000</code></li>
<li><code>bytes=0-1,30-40</code></li>
<li><code>bytes=0-10,20-90,-100</code></li>
<li><code>custom_unit=0-123</code></li>
<li><code>custom_unit=xxx-yyy</code></li>
</ul>
<h1 id='examples' class='section-header'><a href='#examples'>Examples</a></h1>
<pre class='rust rust-example-rendered'>
<span class='kw'>use</span> <span class='ident'>hyper</span>::<span class='ident'>header</span>::{<span class='ident'>Headers</span>, <span class='ident'>Range</span>, <span class='ident'>ByteRangeSpec</span>};
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>headers</span> <span class='op'>=</span> <span class='ident'>Headers</span>::<span class='ident'>new</span>();
<span class='ident'>headers</span>.<span class='ident'>set</span>(<span class='ident'>Range</span>::<span class='ident'>Bytes</span>(
<span class='macro'>vec</span><span class='macro'>!</span>[<span class='ident'>ByteRangeSpec</span>::<span class='ident'>FromTo</span>(<span class='number'>1</span>, <span class='number'>100</span>), <span class='ident'>ByteRangeSpec</span>::<span class='ident'>AllFrom</span>(<span class='number'>200</span>)]
));
<span class='ident'>headers</span>.<span class='ident'>clear</span>();
<span class='ident'>headers</span>.<span class='ident'>set</span>(<span class='ident'>Range</span>::<span class='ident'>Unregistered</span>(<span class='string'>&quot;letters&quot;</span>.<span class='ident'>to_owned</span>(), <span class='string'>&quot;a-f&quot;</span>.<span class='ident'>to_owned</span>()));</pre>
<pre class='rust rust-example-rendered'>
<span class='kw'>use</span> <span class='ident'>hyper</span>::<span class='ident'>header</span>::{<span class='ident'>Headers</span>, <span class='ident'>Range</span>};
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>headers</span> <span class='op'>=</span> <span class='ident'>Headers</span>::<span class='ident'>new</span>();
<span class='ident'>headers</span>.<span class='ident'>set</span>(<span class='ident'>Range</span>::<span class='ident'>bytes</span>(<span class='number'>1</span>, <span class='number'>100</span>));
<span class='ident'>headers</span>.<span class='ident'>clear</span>();
<span class='ident'>headers</span>.<span class='ident'>set</span>(<span class='ident'>Range</span>::<span class='ident'>bytes_multi</span>(<span class='macro'>vec</span><span class='macro'>!</span>[(<span class='number'>1</span>, <span class='number'>100</span>), (<span class='number'>200</span>, <span class='number'>300</span>)]));</pre>
</div><h2 class='variants'>Variants</h2>
<span id='variant.Bytes' class='variant'><code>Bytes(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='enum' href='../../hyper/header/enum.ByteRangeSpec.html' title='hyper::header::ByteRangeSpec'>ByteRangeSpec</a>&gt;)</code></span><div class='docblock'><p>Byte range</p>
</div><span id='variant.Unregistered' class='variant'><code>Unregistered(<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/collections/string/struct.String.html' title='collections::string::String'>String</a>)</code></span><div class='docblock'><p>Custom range, with unit not registered at IANA
(<code>other-range-unit</code>: String , <code>other-range-set</code>: String)</p>
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