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- <p class='location'>Crate synom</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#macros">Macros</a></li><li><a href="#enums">Enums</a></li></ul></div><p class='location'></p><script>window.sidebarCurrent = {name: 'synom', ty: 'mod', relpath: '../'};</script></div>
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- <section id='main' class="content">
- <h1 class='fqn'><span class='in-band'>Crate <a class="mod" href=''>synom</a></span><span class='out-of-band'><span id='render-detail'>
- <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
- [<span class='inner'>−</span>]
- </a>
- </span><a class='srclink' href='../src/synom/lib.rs.html#1-1225' title='goto source code'>[src]</a></span></h1>
- <div class='docblock'><p>Adapted from <a href="https://github.com/Geal/nom"><code>nom</code></a> by removing the
- <code>IResult::Incomplete</code> variant which:</p>
- <ul>
- <li>we don't need,</li>
- <li>is an unintuitive footgun when working with non-streaming use cases, and</li>
- <li>more than doubles compilation time.</li>
- </ul>
- <h2 id="whitespace-handling-strategy" class="section-header"><a href="#whitespace-handling-strategy">Whitespace handling strategy</a></h2>
- <p>As (sy)nom is a parser combinator library, the parsers provided here and
- that you implement yourself are all made up of successively more primitive
- parsers, eventually culminating in a small number of fundamental parsers
- that are implemented in Rust. Among these are <code>punct!</code> and <code>keyword!</code>.</p>
- <p>All synom fundamental parsers (those not combined out of other parsers)
- should be written to skip over leading whitespace in their input. This way,
- as long as every parser eventually boils down to some combination of
- fundamental parsers, we get correct whitespace handling at all levels for
- free.</p>
- <p>For our use case, this strategy is a huge improvement in usability,
- correctness, and compile time over nom's <code>ws!</code> strategy.</p>
- </div><h2 id='macros' class='section-header'><a href="#macros">Macros</a></h2>
- <table>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.alt.html"
- title='macro synom::alt'>alt</a></td>
- <td class='docblock-short'>
- <p>Run a series of parsers, returning the result of the first one which
- succeeds.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.call.html"
- title='macro synom::call'>call</a></td>
- <td class='docblock-short'>
- <p>Invoke the given parser function with the passed in arguments.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.cond.html"
- title='macro synom::cond'>cond</a></td>
- <td class='docblock-short'>
- <p>Conditionally execute the given parser.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.cond_reduce.html"
- title='macro synom::cond_reduce'>cond_reduce</a></td>
- <td class='docblock-short'>
- <p>Fail to parse if condition is false, otherwise parse the given parser.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.delimited.html"
- title='macro synom::delimited'>delimited</a></td>
- <td class='docblock-short'>
- <p>Value surrounded by a pair of delimiters.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.do_parse.html"
- title='macro synom::do_parse'>do_parse</a></td>
- <td class='docblock-short'>
- <p>Run a series of parsers, one after another, optionally assigning the results
- a name. Fail if any of the parsers fails.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.epsilon.html"
- title='macro synom::epsilon'>epsilon</a></td>
- <td class='docblock-short'>
- <p>Parses nothing and always succeeds.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.keyword.html"
- title='macro synom::keyword'>keyword</a></td>
- <td class='docblock-short'>
- <p>Parse a keyword like "fn" or "struct".</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.many0.html"
- title='macro synom::many0'>many0</a></td>
- <td class='docblock-short'>
- <p>Parse zero or more values using the given parser.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.map.html"
- title='macro synom::map'>map</a></td>
- <td class='docblock-short'>
- <p>Transform the result of a parser by applying a function or closure.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.named.html"
- title='macro synom::named'>named</a></td>
- <td class='docblock-short'>
- <p>Define a function from a parser combination.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.not.html"
- title='macro synom::not'>not</a></td>
- <td class='docblock-short'>
- <p>Parses successfully if the given parser fails to parse. Does not consume any
- of the input.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.opt_vec.html"
- title='macro synom::opt_vec'>opt_vec</a></td>
- <td class='docblock-short'>
- <p>Turn a failed parse into an empty vector. The argument parser must itself
- return a vector.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.option.html"
- title='macro synom::option'>option</a></td>
- <td class='docblock-short'>
- <p>Turn a failed parse into <code>None</code> and a successful parse into <code>Some</code>.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.peek.html"
- title='macro synom::peek'>peek</a></td>
- <td class='docblock-short'>
- <p>Parse a value without consuming it from the input data.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.preceded.html"
- title='macro synom::preceded'>preceded</a></td>
- <td class='docblock-short'>
- <p>Parse two things, returning the value of the second.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.punct.html"
- title='macro synom::punct'>punct</a></td>
- <td class='docblock-short'>
- <p>Parse a piece of punctuation like "+" or "+=".</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.separated_list.html"
- title='macro synom::separated_list'>separated_list</a></td>
- <td class='docblock-short'>
- <p>Zero or more values separated by some separator. Does not allow a trailing
- seperator.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.separated_nonempty_list.html"
- title='macro synom::separated_nonempty_list'>separated_nonempty_list</a></td>
- <td class='docblock-short'>
- <p>One or more values separated by some separator. Does not allow a trailing
- separator.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.switch.html"
- title='macro synom::switch'>switch</a></td>
- <td class='docblock-short'>
- <p>Pattern-match the result of a parser to select which other parser to run.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.tag.html"
- title='macro synom::tag'>tag</a></td>
- <td class='docblock-short'>
- <p>Parse the given string from exactly the current position in the input. You
- almost always want <code>punct!</code> or <code>keyword!</code> instead of this.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.take_until.html"
- title='macro synom::take_until'>take_until</a></td>
- <td class='docblock-short'>
- <p>Parse the part of the input up to but not including the given string. Fail
- to parse if the given string is not present in the input.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.terminated.html"
- title='macro synom::terminated'>terminated</a></td>
- <td class='docblock-short'>
- <p>Parse two things, returning the value of the first.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.terminated_list.html"
- title='macro synom::terminated_list'>terminated_list</a></td>
- <td class='docblock-short'>
- <p>Zero or more values separated by some separator. A trailing separator is
- allowed.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.tuple.html"
- title='macro synom::tuple'>tuple</a></td>
- <td class='docblock-short'>
- <p>Run a series of parsers and produce all of the results in a tuple.</p>
- </td>
- </tr>
- <tr class=' module-item'>
- <td><a class="macro" href="macro.value.html"
- title='macro synom::value'>value</a></td>
- <td class='docblock-short'>
- <p>Produce the given value without parsing anything. Useful as an argument to
- <code>switch!</code>.</p>
- </td>
- </tr></table><h2 id='enums' class='section-header'><a href="#enums">Enums</a></h2>
- <table>
- <tr class=' module-item'>
- <td><a class="enum" href="enum.IResult.html"
- title='enum synom::IResult'>IResult</a></td>
- <td class='docblock-short'>
- <p>The result of a parser.</p>
- </td>
- </tr></table></section>
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