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 </pre><pre class="rust"><code><span class="comment">// Copyright 2013-2014 The Rust Project Developers.
 // Copyright 2018 The Uuid Project Developers.
 //
 // See the COPYRIGHT file at the top-level directory of this distribution.
 //
 // Licensed under the Apache License, Version 2.0 &lt;LICENSE-APACHE or
 // http://www.apache.org/licenses/LICENSE-2.0&gt; or the MIT license
 // &lt;LICENSE-MIT or http://opensource.org/licenses/MIT&gt;, at your
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.

 </span><span class="doccomment">//! [`Uuid`] parsing constructs and utilities.
 //!
 //! [`Uuid`]: ../struct.Uuid.html

 </span><span class="kw">use crate</span>::{
     error::<span class="kw-2">*</span>,
     std::{convert::TryFrom, str},
     Uuid,
 };

 <span class="kw">impl </span>str::FromStr <span class="kw">for </span>Uuid {
     <span class="kw">type </span><span class="prelude-val">Err </span>= Error;

     <span class="kw">fn </span>from_str(uuid_str: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, <span class="self">Self</span>::Err&gt; {
         Uuid::parse_str(uuid_str)
     }
 }

 <span class="kw">impl </span>TryFrom&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;_ </span>str&gt; <span class="kw">for </span>Uuid {
     <span class="kw">type </span>Error = Error;

     <span class="kw">fn </span>try_from(uuid_str: <span class="kw-2">&amp;</span><span class="lifetime">&#39;_ </span>str) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, <span class="self">Self</span>::Error&gt; {
         Uuid::parse_str(uuid_str)
     }
 }

 <span class="kw">impl </span>Uuid {
     <span class="doccomment">/// Parses a `Uuid` from a string of hexadecimal digits with optional
     /// hyphens.
     ///
     /// Any of the formats generated by this module (simple, hyphenated, urn,
     /// Microsoft GUID) are supported by this parsing function.
     ///
     /// Prefer [`try_parse`] unless you need detailed user-facing diagnostics.
     /// This method will be eventually deprecated in favor of `try_parse`.
     ///
     /// # Examples
     ///
     /// Parse a hyphenated UUID:
     ///
     /// ```
     /// # use uuid::{Uuid, Version, Variant};
     /// # fn main() -&gt; Result&lt;(), uuid::Error&gt; {
     /// let uuid = Uuid::parse_str(&quot;550e8400-e29b-41d4-a716-446655440000&quot;)?;
     ///
     /// assert_eq!(Some(Version::Random), uuid.get_version());
     /// assert_eq!(Variant::RFC4122, uuid.get_variant());
     /// # Ok(())
     /// # }
     /// ```
     ///
     /// [`try_parse`]: #method.try_parse
     </span><span class="kw">pub fn </span>parse_str(input: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;Uuid, Error&gt; {
         try_parse(input.as_bytes())
             .map(Uuid::from_bytes)
             .map_err(InvalidUuid::into_err)
     }

     <span class="doccomment">/// Parses a `Uuid` from a string of hexadecimal digits with optional
     /// hyphens.
     ///
     /// This function is similar to [`parse_str`], in fact `parse_str` shares
     /// the same underlying parser. The difference is that if `try_parse`
     /// fails, it won&#39;t generate very useful error messages. The `parse_str`
     /// function will eventually be deprecated in favor or `try_parse`.
     ///
     /// To parse a UUID from a byte stream instead of a UTF8 string, see
     /// [`try_parse_ascii`].
     ///
     /// # Examples
     ///
     /// Parse a hyphenated UUID:
     ///
     /// ```
     /// # use uuid::{Uuid, Version, Variant};
     /// # fn main() -&gt; Result&lt;(), uuid::Error&gt; {
     /// let uuid = Uuid::try_parse(&quot;550e8400-e29b-41d4-a716-446655440000&quot;)?;
     ///
     /// assert_eq!(Some(Version::Random), uuid.get_version());
     /// assert_eq!(Variant::RFC4122, uuid.get_variant());
     /// # Ok(())
     /// # }
     /// ```
     ///
     /// [`parse_str`]: #method.parse_str
     /// [`try_parse_ascii`]: #method.try_parse_ascii
     </span><span class="kw">pub const fn </span>try_parse(input: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;Uuid, Error&gt; {
         <span class="self">Self</span>::try_parse_ascii(input.as_bytes())
     }

     <span class="doccomment">/// Parses a `Uuid` from a string of hexadecimal digits with optional
     /// hyphens.
     ///
     /// The input is expected to be a string of ASCII characters. This method
     /// can be more convenient than [`try_parse`] if the UUID is being
     /// parsed from a byte stream instead of from a UTF8 string.
     ///
     /// # Examples
     ///
     /// Parse a hyphenated UUID:
     ///
     /// ```
     /// # use uuid::{Uuid, Version, Variant};
     /// # fn main() -&gt; Result&lt;(), uuid::Error&gt; {
     /// let uuid = Uuid::try_parse_ascii(b&quot;550e8400-e29b-41d4-a716-446655440000&quot;)?;
     ///
     /// assert_eq!(Some(Version::Random), uuid.get_version());
     /// assert_eq!(Variant::RFC4122, uuid.get_variant());
     /// # Ok(())
     /// # }
     /// ```
     ///
     /// [`try_parse`]: #method.try_parse
     </span><span class="kw">pub const fn </span>try_parse_ascii(input: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Result</span>&lt;Uuid, Error&gt; {
         <span class="kw">match </span>try_parse(input) {
             <span class="prelude-val">Ok</span>(bytes) =&gt; <span class="prelude-val">Ok</span>(Uuid::from_bytes(bytes)),
             <span class="comment">// If parsing fails then we don&#39;t know exactly what went wrong
             // In this case, we just return a generic error
             </span><span class="prelude-val">Err</span>(<span class="kw">_</span>) =&gt; <span class="prelude-val">Err</span>(Error(ErrorKind::Other)),
         }
     }
 }

 <span class="kw">const fn </span>try_parse(input: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Result</span>&lt;[u8; <span class="number">16</span>], InvalidUuid&gt; {
     <span class="kw">let </span>result = <span class="kw">match </span>(input.len(), input) {
         <span class="comment">// Inputs of 32 bytes must be a non-hyphenated UUID
         </span>(<span class="number">32</span>, s) =&gt; parse_simple(s),
         <span class="comment">// Hyphenated UUIDs may be wrapped in various ways:
         // - `{UUID}` for braced UUIDs
         // - `urn:uuid:UUID` for URNs
         // - `UUID` for a regular hyphenated UUID
         </span>(<span class="number">36</span>, s)
         | (<span class="number">38</span>, [<span class="string">b&#39;{&#39;</span>, s @ .., <span class="string">b&#39;}&#39;</span>])
         | (<span class="number">45</span>, [<span class="string">b&#39;u&#39;</span>, <span class="string">b&#39;r&#39;</span>, <span class="string">b&#39;n&#39;</span>, <span class="string">b&#39;:&#39;</span>, <span class="string">b&#39;u&#39;</span>, <span class="string">b&#39;u&#39;</span>, <span class="string">b&#39;i&#39;</span>, <span class="string">b&#39;d&#39;</span>, <span class="string">b&#39;:&#39;</span>, s @ ..]) =&gt; {
             parse_hyphenated(s)
         }
         <span class="comment">// Any other shaped input is immediately invalid
         </span><span class="kw">_ </span>=&gt; <span class="prelude-val">Err</span>(()),
     };

     <span class="kw">match </span>result {
         <span class="prelude-val">Ok</span>(b) =&gt; <span class="prelude-val">Ok</span>(b),
         <span class="prelude-val">Err</span>(()) =&gt; <span class="prelude-val">Err</span>(InvalidUuid(input)),
     }
 }

 <span class="attribute">#[inline]
 </span><span class="kw">const fn </span>parse_simple(s: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Result</span>&lt;[u8; <span class="number">16</span>], ()&gt; {
     <span class="comment">// This length check here removes all other bounds
     // checks in this function
     </span><span class="kw">if </span>s.len() != <span class="number">32 </span>{
         <span class="kw">return </span><span class="prelude-val">Err</span>(());
     }

     <span class="kw">let </span><span class="kw-2">mut </span>buf: [u8; <span class="number">16</span>] = [<span class="number">0</span>; <span class="number">16</span>];
     <span class="kw">let </span><span class="kw-2">mut </span>i = <span class="number">0</span>;

     <span class="kw">while </span>i &lt; <span class="number">16 </span>{
         <span class="comment">// Convert a two-char hex value (like `A8`)
         // into a byte (like `10101000`)
         </span><span class="kw">let </span>h1 = HEX_TABLE[s[i * <span class="number">2</span>] <span class="kw">as </span>usize];
         <span class="kw">let </span>h2 = HEX_TABLE[s[i * <span class="number">2 </span>+ <span class="number">1</span>] <span class="kw">as </span>usize];

         <span class="comment">// We use `0xff` as a sentinel value to indicate
         // an invalid hex character sequence (like the letter `G`)
         </span><span class="kw">if </span>h1 | h2 == <span class="number">0xff </span>{
             <span class="kw">return </span><span class="prelude-val">Err</span>(());
         }

         <span class="comment">// The upper nibble needs to be shifted into position
         // to produce the final byte value
         </span>buf[i] = SHL4_TABLE[h1 <span class="kw">as </span>usize] | h2;
         i += <span class="number">1</span>;
     }

     <span class="prelude-val">Ok</span>(buf)
 }

 <span class="attribute">#[inline]
 </span><span class="kw">const fn </span>parse_hyphenated(s: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Result</span>&lt;[u8; <span class="number">16</span>], ()&gt; {
     <span class="comment">// This length check here removes all other bounds
     // checks in this function
     </span><span class="kw">if </span>s.len() != <span class="number">36 </span>{
         <span class="kw">return </span><span class="prelude-val">Err</span>(());
     }

     <span class="comment">// We look at two hex-encoded values (4 chars) at a time because
     // that&#39;s the size of the smallest group in a hyphenated UUID.
     // The indexes we&#39;re interested in are:
     //
     // uuid     : 936da01f-9abd-4d9d-80c7-02af85c822a8
     //            |   |   ||   ||   ||   ||   |   |
     // hyphens  : |   |   8|  13|  18|  23|   |   |
     // positions: 0   4    9   14   19   24  28  32

     // First, ensure the hyphens appear in the right places
     </span><span class="kw">match </span>[s[<span class="number">8</span>], s[<span class="number">13</span>], s[<span class="number">18</span>], s[<span class="number">23</span>]] {
         [<span class="string">b&#39;-&#39;</span>, <span class="string">b&#39;-&#39;</span>, <span class="string">b&#39;-&#39;</span>, <span class="string">b&#39;-&#39;</span>] =&gt; {}
         <span class="kw">_ </span>=&gt; <span class="kw">return </span><span class="prelude-val">Err</span>(()),
     }

     <span class="kw">let </span>positions: [u8; <span class="number">8</span>] = [<span class="number">0</span>, <span class="number">4</span>, <span class="number">9</span>, <span class="number">14</span>, <span class="number">19</span>, <span class="number">24</span>, <span class="number">28</span>, <span class="number">32</span>];
     <span class="kw">let </span><span class="kw-2">mut </span>buf: [u8; <span class="number">16</span>] = [<span class="number">0</span>; <span class="number">16</span>];
     <span class="kw">let </span><span class="kw-2">mut </span>j = <span class="number">0</span>;

     <span class="kw">while </span>j &lt; <span class="number">8 </span>{
         <span class="kw">let </span>i = positions[j];

         <span class="comment">// The decoding here is the same as the simple case
         // We&#39;re just dealing with two values instead of one
         </span><span class="kw">let </span>h1 = HEX_TABLE[s[i <span class="kw">as </span>usize] <span class="kw">as </span>usize];
         <span class="kw">let </span>h2 = HEX_TABLE[s[(i + <span class="number">1</span>) <span class="kw">as </span>usize] <span class="kw">as </span>usize];
         <span class="kw">let </span>h3 = HEX_TABLE[s[(i + <span class="number">2</span>) <span class="kw">as </span>usize] <span class="kw">as </span>usize];
         <span class="kw">let </span>h4 = HEX_TABLE[s[(i + <span class="number">3</span>) <span class="kw">as </span>usize] <span class="kw">as </span>usize];

         <span class="kw">if </span>h1 | h2 | h3 | h4 == <span class="number">0xff </span>{
             <span class="kw">return </span><span class="prelude-val">Err</span>(());
         }

         buf[j * <span class="number">2</span>] = SHL4_TABLE[h1 <span class="kw">as </span>usize] | h2;
         buf[j * <span class="number">2 </span>+ <span class="number">1</span>] = SHL4_TABLE[h3 <span class="kw">as </span>usize] | h4;
         j += <span class="number">1</span>;
     }

     <span class="prelude-val">Ok</span>(buf)
 }

 <span class="kw">const </span>HEX_TABLE: <span class="kw-2">&amp;</span>[u8; <span class="number">256</span>] = <span class="kw-2">&amp;</span>{
     <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0</span>; <span class="number">256</span>];
     <span class="kw">let </span><span class="kw-2">mut </span>i: u8 = <span class="number">0</span>;

     <span class="kw">loop </span>{
         buf[i <span class="kw">as </span>usize] = <span class="kw">match </span>i {
             <span class="string">b&#39;0&#39;</span>..=<span class="string">b&#39;9&#39; </span>=&gt; i - <span class="string">b&#39;0&#39;</span>,
             <span class="string">b&#39;a&#39;</span>..=<span class="string">b&#39;f&#39; </span>=&gt; i - <span class="string">b&#39;a&#39; </span>+ <span class="number">10</span>,
             <span class="string">b&#39;A&#39;</span>..=<span class="string">b&#39;F&#39; </span>=&gt; i - <span class="string">b&#39;A&#39; </span>+ <span class="number">10</span>,
             <span class="kw">_ </span>=&gt; <span class="number">0xff</span>,
         };

         <span class="kw">if </span>i == <span class="number">255 </span>{
             <span class="kw">break </span>buf;
         }

         i += <span class="number">1
     </span>}
 };

 <span class="kw">const </span>SHL4_TABLE: <span class="kw-2">&amp;</span>[u8; <span class="number">256</span>] = <span class="kw-2">&amp;</span>{
     <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0</span>; <span class="number">256</span>];
     <span class="kw">let </span><span class="kw-2">mut </span>i: u8 = <span class="number">0</span>;

     <span class="kw">loop </span>{
         buf[i <span class="kw">as </span>usize] = i.wrapping_shl(<span class="number">4</span>);

         <span class="kw">if </span>i == <span class="number">255 </span>{
             <span class="kw">break </span>buf;
         }

         i += <span class="number">1</span>;
     }
 };

 <span class="attribute">#[cfg(test)]
 </span><span class="kw">mod </span>tests {
     <span class="kw">use super</span>::<span class="kw-2">*</span>;
     <span class="kw">use crate</span>::{std::string::ToString, tests::new};

     <span class="attribute">#[test]
     </span><span class="kw">fn </span>test_parse_uuid_v4_valid() {
         <span class="kw">let </span>from_hyphenated = Uuid::parse_str(<span class="string">&quot;67e55044-10b1-426f-9247-bb680e5fe0c8&quot;</span>).unwrap();
         <span class="kw">let </span>from_simple = Uuid::parse_str(<span class="string">&quot;67e5504410b1426f9247bb680e5fe0c8&quot;</span>).unwrap();
         <span class="kw">let </span>from_urn = Uuid::parse_str(<span class="string">&quot;urn:uuid:67e55044-10b1-426f-9247-bb680e5fe0c8&quot;</span>).unwrap();
         <span class="kw">let </span>from_guid = Uuid::parse_str(<span class="string">&quot;{67e55044-10b1-426f-9247-bb680e5fe0c8}&quot;</span>).unwrap();

         <span class="macro">assert_eq!</span>(from_hyphenated, from_simple);
         <span class="macro">assert_eq!</span>(from_hyphenated, from_urn);
         <span class="macro">assert_eq!</span>(from_hyphenated, from_guid);

         <span class="macro">assert!</span>(Uuid::parse_str(<span class="string">&quot;00000000000000000000000000000000&quot;</span>).is_ok());
         <span class="macro">assert!</span>(Uuid::parse_str(<span class="string">&quot;67e55044-10b1-426f-9247-bb680e5fe0c8&quot;</span>).is_ok());
         <span class="macro">assert!</span>(Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faa-B6BF-329BF39FA1E4&quot;</span>).is_ok());
         <span class="macro">assert!</span>(Uuid::parse_str(<span class="string">&quot;67e5504410b1426f9247bb680e5fe0c8&quot;</span>).is_ok());
         <span class="macro">assert!</span>(Uuid::parse_str(<span class="string">&quot;01020304-1112-2122-3132-414243444546&quot;</span>).is_ok());
         <span class="macro">assert!</span>(Uuid::parse_str(<span class="string">&quot;urn:uuid:67e55044-10b1-426f-9247-bb680e5fe0c8&quot;</span>).is_ok());
         <span class="macro">assert!</span>(Uuid::parse_str(<span class="string">&quot;{6d93bade-bd9f-4e13-8914-9474e1e3567b}&quot;</span>).is_ok());

         <span class="comment">// Nil
         </span><span class="kw">let </span>nil = Uuid::nil();
         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;00000000000000000000000000000000&quot;</span>).unwrap(),
             nil
         );
         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;00000000-0000-0000-0000-000000000000&quot;</span>).unwrap(),
             nil
         );
     }

     <span class="attribute">#[test]
     </span><span class="kw">fn </span>test_parse_uuid_v4_invalid() {
         <span class="comment">// Invalid
         </span><span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::SimpleLength { len: <span class="number">0 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;!&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::Char {
                 character: <span class="string">&#39;!&#39;</span>,
                 index: <span class="number">1</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faa-B6BF-329BF39FA1E45&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupLength {
                 group: <span class="number">4</span>,
                 len: <span class="number">13</span>,
                 index: <span class="number">25</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faa-BBF-329BF39FA1E4&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupLength {
                 group: <span class="number">3</span>,
                 len: <span class="number">3</span>,
                 index: <span class="number">20</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faa-BGBF-329BF39FA1E4&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::Char {
                 character: <span class="string">&#39;G&#39;</span>,
                 index: <span class="number">21</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2F4faaFB6BFF329BF39FA1E4&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupCount { count: <span class="number">2 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faaFB6BFF329BF39FA1E4&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupCount { count: <span class="number">3 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faa-B6BFF329BF39FA1E4&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupCount { count: <span class="number">4 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faa&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupCount { count: <span class="number">3 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faaXB6BFF329BF39FA1E4&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::Char {
                 character: <span class="string">&#39;X&#39;</span>,
                 index: <span class="number">19</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;{F9168C5E-CEB2-4faa9B6BFF329BF39FA1E41&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::Char {
                 character: <span class="string">&#39;{&#39;</span>,
                 index: <span class="number">1</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;{F9168C5E-CEB2-4faa9B6BFF329BF39FA1E41}&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupCount { count: <span class="number">3 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB-24fa-eB6BFF32-BF39FA1E4&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupLength {
                 group: <span class="number">1</span>,
                 len: <span class="number">3</span>,
                 index: <span class="number">10</span>,
             }))
         );

         <span class="comment">// // (group, found, expecting)
         // //
         </span><span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;01020304-1112-2122-3132-41424344&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupLength {
                 group: <span class="number">4</span>,
                 len: <span class="number">8</span>,
                 index: <span class="number">25</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;67e5504410b1426f9247bb680e5fe0c&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::SimpleLength { len: <span class="number">31 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;67e5504410b1426f9247bb680e5fe0c88&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::SimpleLength { len: <span class="number">33 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;67e5504410b1426f9247bb680e5fe0cg8&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::Char {
                 character: <span class="string">&#39;g&#39;</span>,
                 index: <span class="number">32</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;67e5504410b1426%9247bb680e5fe0c8&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::Char {
                 character: <span class="string">&#39;%&#39;</span>,
                 index: <span class="number">16</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;231231212212423424324323477343246663&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::SimpleLength { len: <span class="number">36 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;{00000000000000000000000000000000}&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupCount { count: <span class="number">1 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;67e5504410b1426f9247bb680e5fe0c&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::SimpleLength { len: <span class="number">31 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;67e550X410b1426f9247bb680e5fe0cd&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::Char {
                 character: <span class="string">&#39;X&#39;</span>,
                 index: <span class="number">7</span>,
             }))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;67e550-4105b1426f9247bb680e5fe0c&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupCount { count: <span class="number">2 </span>}))
         );

         <span class="macro">assert_eq!</span>(
             Uuid::parse_str(<span class="string">&quot;F9168C5E-CEB2-4faa-B6BF1-02BF39FA1E4&quot;</span>),
             <span class="prelude-val">Err</span>(Error(ErrorKind::GroupLength {
                 group: <span class="number">3</span>,
                 len: <span class="number">5</span>,
                 index: <span class="number">20</span>,
             }))
         );
     }

     <span class="attribute">#[test]
     </span><span class="kw">fn </span>test_roundtrip_default() {
         <span class="kw">let </span>uuid_orig = new();
         <span class="kw">let </span>orig_str = uuid_orig.to_string();
         <span class="kw">let </span>uuid_out = Uuid::parse_str(<span class="kw-2">&amp;</span>orig_str).unwrap();
         <span class="macro">assert_eq!</span>(uuid_orig, uuid_out);
     }

     <span class="attribute">#[test]
     </span><span class="kw">fn </span>test_roundtrip_hyphenated() {
         <span class="kw">let </span>uuid_orig = new();
         <span class="kw">let </span>orig_str = uuid_orig.hyphenated().to_string();
         <span class="kw">let </span>uuid_out = Uuid::parse_str(<span class="kw-2">&amp;</span>orig_str).unwrap();
         <span class="macro">assert_eq!</span>(uuid_orig, uuid_out);
     }

     <span class="attribute">#[test]
     </span><span class="kw">fn </span>test_roundtrip_simple() {
         <span class="kw">let </span>uuid_orig = new();
         <span class="kw">let </span>orig_str = uuid_orig.simple().to_string();
         <span class="kw">let </span>uuid_out = Uuid::parse_str(<span class="kw-2">&amp;</span>orig_str).unwrap();
         <span class="macro">assert_eq!</span>(uuid_orig, uuid_out);
     }

     <span class="attribute">#[test]
     </span><span class="kw">fn </span>test_roundtrip_urn() {
         <span class="kw">let </span>uuid_orig = new();
         <span class="kw">let </span>orig_str = uuid_orig.urn().to_string();
         <span class="kw">let </span>uuid_out = Uuid::parse_str(<span class="kw-2">&amp;</span>orig_str).unwrap();
         <span class="macro">assert_eq!</span>(uuid_orig, uuid_out);
     }

     <span class="attribute">#[test]
     </span><span class="kw">fn </span>test_roundtrip_braced() {
         <span class="kw">let </span>uuid_orig = new();
         <span class="kw">let </span>orig_str = uuid_orig.braced().to_string();
         <span class="kw">let </span>uuid_out = Uuid::parse_str(<span class="kw-2">&amp;</span>orig_str).unwrap();
         <span class="macro">assert_eq!</span>(uuid_orig, uuid_out);
     }

     <span class="attribute">#[test]
     </span><span class="kw">fn </span>test_try_parse_ascii_non_utf8() {
         <span class="macro">assert!</span>(Uuid::try_parse_ascii(<span class="string">b&quot;67e55044-10b1-426f-9247-bb680e5\0e0c8&quot;</span>).is_err());
     }
 }
 </code></pre></div>
 </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="uuid" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>