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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE BangPatterns, FlexibleInstances, TypeFamilies,
<a name="line-2"></a> TypeSynonymInstances, GADTs #-}</span>
<a name="line-3"></a><span class='hs-comment'>{-# OPTIONS_GHC -fno-warn-orphans -fno-warn-warnings-deprecations #-}</span>
<a name="line-4"></a>
<a name="line-5"></a><span class='hs-comment'>-- |</span>
<a name="line-6"></a><span class='hs-comment'>-- Module : Data.Attoparsec.ByteString.Char8</span>
<a name="line-7"></a><span class='hs-comment'>-- Copyright : Bryan O'Sullivan 2007-2014</span>
<a name="line-8"></a><span class='hs-comment'>-- License : BSD3</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Maintainer : bos@serpentine.com</span>
<a name="line-11"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-12"></a><span class='hs-comment'>-- Portability : unknown</span>
<a name="line-13"></a><span class='hs-comment'>--</span>
<a name="line-14"></a><span class='hs-comment'>-- Simple, efficient, character-oriented combinator parsing for</span>
<a name="line-15"></a><span class='hs-comment'>-- 'B.ByteString' strings, loosely based on the Parsec library.</span>
<a name="line-16"></a>
<a name="line-17"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Attoparsec</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span>
<a name="line-18"></a> <span class='hs-layout'>(</span>
<a name="line-19"></a> <span class='hs-comment'>-- * Character encodings</span>
<a name="line-20"></a> <span class='hs-comment'>-- $encodings</span>
<a name="line-21"></a>
<a name="line-22"></a> <span class='hs-comment'>-- * Parser types</span>
<a name="line-23"></a> <span class='hs-conid'>Parser</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>Result</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>IResult</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>compareResults</span>
<a name="line-27"></a>
<a name="line-28"></a> <span class='hs-comment'>-- * Running parsers</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>parse</span>
<a name="line-30"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>feed</span>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>parseOnly</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>parseWith</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>parseTest</span>
<a name="line-34"></a>
<a name="line-35"></a> <span class='hs-comment'>-- ** Result conversion</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>maybeResult</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>eitherResult</span>
<a name="line-38"></a>
<a name="line-39"></a> <span class='hs-comment'>-- * Parsing individual characters</span>
<a name="line-40"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>char</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>char8</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>anyChar</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>notChar</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>satisfy</span>
<a name="line-45"></a>
<a name="line-46"></a> <span class='hs-comment'>-- ** Lookahead</span>
<a name="line-47"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>peekChar</span>
<a name="line-48"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>peekChar'</span>
<a name="line-49"></a>
<a name="line-50"></a> <span class='hs-comment'>-- ** Special character parsers</span>
<a name="line-51"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>digit</span>
<a name="line-52"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>letter_iso8859_15</span>
<a name="line-53"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>letter_ascii</span>
<a name="line-54"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>space</span>
<a name="line-55"></a>
<a name="line-56"></a> <span class='hs-comment'>-- ** Fast predicates</span>
<a name="line-57"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isDigit</span>
<a name="line-58"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isDigit_w8</span>
<a name="line-59"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isAlpha_iso8859_15</span>
<a name="line-60"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isAlpha_ascii</span>
<a name="line-61"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isSpace</span>
<a name="line-62"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isSpace_w8</span>
<a name="line-63"></a>
<a name="line-64"></a> <span class='hs-comment'>-- *** Character classes</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>inClass</span>
<a name="line-66"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>notInClass</span>
<a name="line-67"></a>
<a name="line-68"></a> <span class='hs-comment'>-- * Efficient string handling</span>
<a name="line-69"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>string</span>
<a name="line-70"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stringCI</span>
<a name="line-71"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>skipSpace</span>
<a name="line-72"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>skipWhile</span>
<a name="line-73"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>take</span>
<a name="line-74"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>scan</span>
<a name="line-75"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>takeWhile</span>
<a name="line-76"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>takeWhile1</span>
<a name="line-77"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>takeTill</span>
<a name="line-78"></a>
<a name="line-79"></a> <span class='hs-comment'>-- ** String combinators</span>
<a name="line-80"></a> <span class='hs-comment'>-- $specalt</span>
<a name="line-81"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>.*></span><span class='hs-layout'>)</span>
<a name="line-82"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><*.</span><span class='hs-layout'>)</span>
<a name="line-83"></a>
<a name="line-84"></a> <span class='hs-comment'>-- ** Consume all remaining input</span>
<a name="line-85"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>takeByteString</span>
<a name="line-86"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>takeLazyByteString</span>
<a name="line-87"></a>
<a name="line-88"></a> <span class='hs-comment'>-- * Text parsing</span>
<a name="line-89"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>endOfLine</span>
<a name="line-90"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isEndOfLine</span>
<a name="line-91"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isHorizontalSpace</span>
<a name="line-92"></a>
<a name="line-93"></a> <span class='hs-comment'>-- * Numeric parsers</span>
<a name="line-94"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decimal</span>
<a name="line-95"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>hexadecimal</span>
<a name="line-96"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>signed</span>
<a name="line-97"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Number</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-98"></a>
<a name="line-99"></a> <span class='hs-comment'>-- * Combinators</span>
<a name="line-100"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>try</span>
<a name="line-101"></a> <span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><?></span><span class='hs-layout'>)</span>
<a name="line-102"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>choice</span>
<a name="line-103"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>count</span>
<a name="line-104"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>option</span>
<a name="line-105"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>many'</span>
<a name="line-106"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>many1</span>
<a name="line-107"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>many1'</span>
<a name="line-108"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>manyTill</span>
<a name="line-109"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>manyTill'</span>
<a name="line-110"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sepBy</span>
<a name="line-111"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sepBy'</span>
<a name="line-112"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sepBy1</span>
<a name="line-113"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>sepBy1'</span>
<a name="line-114"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>skipMany</span>
<a name="line-115"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>skipMany1</span>
<a name="line-116"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>eitherP</span>
<a name="line-117"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>match</span>
<a name="line-118"></a> <span class='hs-comment'>-- * State observation and manipulation functions</span>
<a name="line-119"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>endOfInput</span>
<a name="line-120"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>atEnd</span>
<a name="line-121"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-122"></a>
<a name="line-123"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Applicative</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>*></span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><*</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><$></span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><|></span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-124"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Attoparsec</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>FastSet</span> <span class='hs-layout'>(</span><span class='hs-varid'>charClass</span><span class='hs-layout'>,</span> <span class='hs-varid'>memberChar</span><span class='hs-layout'>)</span>
<a name="line-125"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Attoparsec</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-layout'>(</span><span class='hs-conid'>Parser</span><span class='hs-layout'>)</span>
<a name="line-126"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Attoparsec</span><span class='hs-varop'>.</span><span class='hs-conid'>Combinator</span>
<a name="line-127"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Attoparsec</span><span class='hs-varop'>.</span><span class='hs-conid'>Number</span> <span class='hs-layout'>(</span><span class='hs-conid'>Number</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-128"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Bits</span> <span class='hs-layout'>(</span><span class='hs-conid'>Bits</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'>.|.</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>shiftL</span><span class='hs-layout'>)</span>
<a name="line-129"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-layout'>(</span><span class='hs-varid'>c2w</span><span class='hs-layout'>,</span> <span class='hs-varid'>w2c</span><span class='hs-layout'>)</span>
<a name="line-130"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Int</span> <span class='hs-layout'>(</span><span class='hs-conid'>Int8</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int16</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int32</span><span class='hs-layout'>,</span> <span class='hs-conid'>Int64</span><span class='hs-layout'>)</span>
<a name="line-131"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>String</span> <span class='hs-layout'>(</span><span class='hs-conid'>IsString</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-132"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span>
<a name="line-133"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>takeWhile</span><span class='hs-layout'>)</span>
<a name="line-134"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Attoparsec</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>A</span>
<a name="line-135"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Attoparsec</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>I</span>
<a name="line-136"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Attoparsec</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>I</span>
<a name="line-137"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B8</span>
<a name="line-138"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-139"></a>
<a name="line-140"></a><a name="instance%20IsString%20(Parser%20a)"></a><span class='hs-keyword'>instance</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>~</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>IsString</span> <span class='hs-layout'>(</span><span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-141"></a> <span class='hs-varid'>fromString</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>string</span> <span class='hs-varop'>.</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span>
<a name="line-142"></a>
<a name="line-143"></a><span class='hs-comment'>-- $encodings</span>
<a name="line-144"></a><span class='hs-comment'>--</span>
<a name="line-145"></a><span class='hs-comment'>-- This module is intended for parsing text that is</span>
<a name="line-146"></a><span class='hs-comment'>-- represented using an 8-bit character set, e.g. ASCII or</span>
<a name="line-147"></a><span class='hs-comment'>-- ISO-8859-15. It /does not/ make any attempt to deal with character</span>
<a name="line-148"></a><span class='hs-comment'>-- encodings, multibyte characters, or wide characters. In</span>
<a name="line-149"></a><span class='hs-comment'>-- particular, all attempts to use characters above code point U+00FF</span>
<a name="line-150"></a><span class='hs-comment'>-- will give wrong answers.</span>
<a name="line-151"></a><span class='hs-comment'>--</span>
<a name="line-152"></a><span class='hs-comment'>-- Code points below U+0100 are simply translated to and from their</span>
<a name="line-153"></a><span class='hs-comment'>-- numeric values, so e.g. the code point U+00A4 becomes the byte</span>
<a name="line-154"></a><span class='hs-comment'>-- @0xA4@ (which is the Euro symbol in ISO-8859-15, but the generic</span>
<a name="line-155"></a><span class='hs-comment'>-- currency sign in ISO-8859-1). Haskell 'Char' values above U+00FF</span>
<a name="line-156"></a><span class='hs-comment'>-- are truncated, so e.g. U+1D6B7 is truncated to the byte @0xB7@.</span>
<a name="line-157"></a>
<a name="line-158"></a><a name="toLower"></a><span class='hs-comment'>-- ASCII-specific but fast, oh yes.</span>
<a name="line-159"></a><span class='hs-definition'>toLower</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word8</span>
<a name="line-160"></a><span class='hs-definition'>toLower</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>w</span> <span class='hs-varop'>>=</span> <span class='hs-num'>65</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>90</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span> <span class='hs-varop'>+</span> <span class='hs-num'>32</span>
<a name="line-161"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span>
<a name="line-162"></a>
<a name="line-163"></a><a name="stringCI"></a><span class='hs-comment'>-- | Satisfy a literal string, ignoring case.</span>
<a name="line-164"></a><span class='hs-definition'>stringCI</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-165"></a><span class='hs-definition'>stringCI</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>stringTransform</span> <span class='hs-layout'>(</span><span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>toLower</span><span class='hs-layout'>)</span>
<a name="line-166"></a><span class='hs-comment'>{-# INLINE stringCI #-}</span>
<a name="line-167"></a>
<a name="line-168"></a><a name="takeWhile1"></a><span class='hs-comment'>-- | Consume input as long as the predicate returns 'True', and return</span>
<a name="line-169"></a><span class='hs-comment'>-- the consumed input.</span>
<a name="line-170"></a><span class='hs-comment'>--</span>
<a name="line-171"></a><span class='hs-comment'>-- This parser requires the predicate to succeed on at least one byte</span>
<a name="line-172"></a><span class='hs-comment'>-- of input: it will fail if the predicate never returns 'True' or if</span>
<a name="line-173"></a><span class='hs-comment'>-- there is no input left.</span>
<a name="line-174"></a><span class='hs-definition'>takeWhile1</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-175"></a><span class='hs-definition'>takeWhile1</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>takeWhile1</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-varop'>.</span> <span class='hs-varid'>w2c</span><span class='hs-layout'>)</span>
<a name="line-176"></a><span class='hs-comment'>{-# INLINE takeWhile1 #-}</span>
<a name="line-177"></a>
<a name="line-178"></a><a name="satisfy"></a><span class='hs-comment'>-- | The parser @satisfy p@ succeeds for any byte for which the</span>
<a name="line-179"></a><span class='hs-comment'>-- predicate @p@ returns 'True'. Returns the byte that is actually</span>
<a name="line-180"></a><span class='hs-comment'>-- parsed.</span>
<a name="line-181"></a><span class='hs-comment'>--</span>
<a name="line-182"></a><span class='hs-comment'>-- >digit = satisfy isDigit</span>
<a name="line-183"></a><span class='hs-comment'>-- > where isDigit c = c >= '0' && c <= '9'</span>
<a name="line-184"></a><span class='hs-definition'>satisfy</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-185"></a><span class='hs-definition'>satisfy</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>satisfyWith</span> <span class='hs-varid'>w2c</span>
<a name="line-186"></a><span class='hs-comment'>{-# INLINE satisfy #-}</span>
<a name="line-187"></a>
<a name="line-188"></a><a name="letter_iso8859_15"></a><span class='hs-comment'>-- | Match a letter, in the ISO-8859-15 encoding.</span>
<a name="line-189"></a><span class='hs-definition'>letter_iso8859_15</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-190"></a><span class='hs-definition'>letter_iso8859_15</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>satisfy</span> <span class='hs-varid'>isAlpha_iso8859_15</span> <span class='hs-varop'><?></span> <span class='hs-str'>"letter_iso8859_15"</span>
<a name="line-191"></a><span class='hs-comment'>{-# INLINE letter_iso8859_15 #-}</span>
<a name="line-192"></a>
<a name="line-193"></a><a name="letter_ascii"></a><span class='hs-comment'>-- | Match a letter, in the ASCII encoding.</span>
<a name="line-194"></a><span class='hs-definition'>letter_ascii</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-195"></a><span class='hs-definition'>letter_ascii</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>satisfy</span> <span class='hs-varid'>isAlpha_ascii</span> <span class='hs-varop'><?></span> <span class='hs-str'>"letter_ascii"</span>
<a name="line-196"></a><span class='hs-comment'>{-# INLINE letter_ascii #-}</span>
<a name="line-197"></a>
<a name="line-198"></a><a name="isAlpha_iso8859_15"></a><span class='hs-comment'>-- | A fast alphabetic predicate for the ISO-8859-15 encoding</span>
<a name="line-199"></a><span class='hs-comment'>--</span>
<a name="line-200"></a><span class='hs-comment'>-- /Note/: For all character encodings other than ISO-8859-15, and</span>
<a name="line-201"></a><span class='hs-comment'>-- almost all Unicode code points above U+00A3, this predicate gives</span>
<a name="line-202"></a><span class='hs-comment'>-- /wrong answers/.</span>
<a name="line-203"></a><span class='hs-definition'>isAlpha_iso8859_15</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-204"></a><span class='hs-definition'>isAlpha_iso8859_15</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>>=</span> <span class='hs-chr'>'a'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>c</span> <span class='hs-varop'><=</span> <span class='hs-chr'>'z'</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>>=</span> <span class='hs-chr'>'A'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>c</span> <span class='hs-varop'><=</span> <span class='hs-chr'>'Z'</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span>
<a name="line-205"></a> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>>=</span> <span class='hs-chr'>'\166'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>moby</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-206"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>moby</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>notInClass</span> <span class='hs-str'>"\167\169\171-\179\182\183\185\187\191\215\247"</span>
<a name="line-207"></a> <span class='hs-comment'>{-# NOINLINE moby #-}</span>
<a name="line-208"></a><span class='hs-comment'>{-# INLINE isAlpha_iso8859_15 #-}</span>
<a name="line-209"></a>
<a name="line-210"></a><a name="isAlpha_ascii"></a><span class='hs-comment'>-- | A fast alphabetic predicate for the ASCII encoding</span>
<a name="line-211"></a><span class='hs-comment'>--</span>
<a name="line-212"></a><span class='hs-comment'>-- /Note/: For all character encodings other than ASCII, and</span>
<a name="line-213"></a><span class='hs-comment'>-- almost all Unicode code points above U+007F, this predicate gives</span>
<a name="line-214"></a><span class='hs-comment'>-- /wrong answers/.</span>
<a name="line-215"></a><span class='hs-definition'>isAlpha_ascii</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-216"></a><span class='hs-definition'>isAlpha_ascii</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>>=</span> <span class='hs-chr'>'a'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>c</span> <span class='hs-varop'><=</span> <span class='hs-chr'>'z'</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>>=</span> <span class='hs-chr'>'A'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>c</span> <span class='hs-varop'><=</span> <span class='hs-chr'>'Z'</span><span class='hs-layout'>)</span>
<a name="line-217"></a><span class='hs-comment'>{-# INLINE isAlpha_ascii #-}</span>
<a name="line-218"></a>
<a name="line-219"></a><a name="digit"></a><span class='hs-comment'>-- | Parse a single digit.</span>
<a name="line-220"></a><span class='hs-definition'>digit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-221"></a><span class='hs-definition'>digit</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>satisfy</span> <span class='hs-varid'>isDigit</span> <span class='hs-varop'><?></span> <span class='hs-str'>"digit"</span>
<a name="line-222"></a><span class='hs-comment'>{-# INLINE digit #-}</span>
<a name="line-223"></a>
<a name="line-224"></a><a name="isDigit"></a><span class='hs-comment'>-- | A fast digit predicate.</span>
<a name="line-225"></a><span class='hs-definition'>isDigit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-226"></a><span class='hs-definition'>isDigit</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>c</span> <span class='hs-varop'>>=</span> <span class='hs-chr'>'0'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>c</span> <span class='hs-varop'><=</span> <span class='hs-chr'>'9'</span>
<a name="line-227"></a><span class='hs-comment'>{-# INLINE isDigit #-}</span>
<a name="line-228"></a>
<a name="line-229"></a><a name="isDigit_w8"></a><span class='hs-comment'>-- | A fast digit predicate.</span>
<a name="line-230"></a><span class='hs-definition'>isDigit_w8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-231"></a><span class='hs-definition'>isDigit_w8</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span> <span class='hs-varop'>>=</span> <span class='hs-num'>48</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>57</span>
<a name="line-232"></a><span class='hs-comment'>{-# INLINE isDigit_w8 #-}</span>
<a name="line-233"></a>
<a name="line-234"></a><a name="anyChar"></a><span class='hs-comment'>-- | Match any character.</span>
<a name="line-235"></a><span class='hs-definition'>anyChar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-236"></a><span class='hs-definition'>anyChar</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>satisfy</span> <span class='hs-varop'>$</span> <span class='hs-varid'>const</span> <span class='hs-conid'>True</span>
<a name="line-237"></a><span class='hs-comment'>{-# INLINE anyChar #-}</span>
<a name="line-238"></a>
<a name="line-239"></a><a name="peekChar"></a><span class='hs-comment'>-- | Match any character, to perform lookahead. Returns 'Nothing' if</span>
<a name="line-240"></a><span class='hs-comment'>-- end of input has been reached. Does not consume any input.</span>
<a name="line-241"></a><span class='hs-comment'>--</span>
<a name="line-242"></a><span class='hs-comment'>-- /Note/: Because this parser does not fail, do not use it with</span>
<a name="line-243"></a><span class='hs-comment'>-- combinators such as 'many', because such parsers loop until a</span>
<a name="line-244"></a><span class='hs-comment'>-- failure occurs. Careless use will thus result in an infinite loop.</span>
<a name="line-245"></a><span class='hs-definition'>peekChar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>Char</span><span class='hs-layout'>)</span>
<a name="line-246"></a><span class='hs-definition'>peekChar</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>fmap</span> <span class='hs-varid'>w2c</span><span class='hs-layout'>)</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>peekWord8</span>
<a name="line-247"></a><span class='hs-comment'>{-# INLINE peekChar #-}</span>
<a name="line-248"></a>
<a name="line-249"></a><a name="peekChar'"></a><span class='hs-comment'>-- | Match any character, to perform lookahead. Does not consume any</span>
<a name="line-250"></a><span class='hs-comment'>-- input, but will fail if end of input has been reached.</span>
<a name="line-251"></a><span class='hs-definition'>peekChar'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-252"></a><span class='hs-definition'>peekChar'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w2c</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>peekWord8'</span>
<a name="line-253"></a><span class='hs-comment'>{-# INLINE peekChar' #-}</span>
<a name="line-254"></a>
<a name="line-255"></a><a name="isSpace"></a><span class='hs-comment'>-- | Fast predicate for matching ASCII space characters.</span>
<a name="line-256"></a><span class='hs-comment'>--</span>
<a name="line-257"></a><span class='hs-comment'>-- /Note/: This predicate only gives correct answers for the ASCII</span>
<a name="line-258"></a><span class='hs-comment'>-- encoding. For instance, it does not recognise U+00A0 (non-breaking</span>
<a name="line-259"></a><span class='hs-comment'>-- space) as a space character, even though it is a valid ISO-8859-15</span>
<a name="line-260"></a><span class='hs-comment'>-- byte. For a Unicode-aware and only slightly slower predicate,</span>
<a name="line-261"></a><span class='hs-comment'>-- use 'Data.Char.isSpace'</span>
<a name="line-262"></a><span class='hs-definition'>isSpace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-263"></a><span class='hs-definition'>isSpace</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>==</span> <span class='hs-chr'>' '</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-layout'>(</span><span class='hs-chr'>'\t'</span> <span class='hs-varop'><=</span> <span class='hs-varid'>c</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>c</span> <span class='hs-varop'><=</span> <span class='hs-chr'>'\r'</span><span class='hs-layout'>)</span>
<a name="line-264"></a><span class='hs-comment'>{-# INLINE isSpace #-}</span>
<a name="line-265"></a>
<a name="line-266"></a><a name="isSpace_w8"></a><span class='hs-comment'>-- | Fast 'Word8' predicate for matching ASCII space characters.</span>
<a name="line-267"></a><span class='hs-definition'>isSpace_w8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-268"></a><span class='hs-definition'>isSpace_w8</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>==</span> <span class='hs-num'>32</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span> <span class='hs-layout'>(</span><span class='hs-num'>9</span> <span class='hs-varop'><=</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>13</span><span class='hs-layout'>)</span>
<a name="line-269"></a><span class='hs-comment'>{-# INLINE isSpace_w8 #-}</span>
<a name="line-270"></a>
<a name="line-271"></a>
<a name="line-272"></a><a name="space"></a><span class='hs-comment'>-- | Parse a space character.</span>
<a name="line-273"></a><span class='hs-comment'>--</span>
<a name="line-274"></a><span class='hs-comment'>-- /Note/: This parser only gives correct answers for the ASCII</span>
<a name="line-275"></a><span class='hs-comment'>-- encoding. For instance, it does not recognise U+00A0 (non-breaking</span>
<a name="line-276"></a><span class='hs-comment'>-- space) as a space character, even though it is a valid ISO-8859-15</span>
<a name="line-277"></a><span class='hs-comment'>-- byte.</span>
<a name="line-278"></a><span class='hs-definition'>space</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-279"></a><span class='hs-definition'>space</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>satisfy</span> <span class='hs-varid'>isSpace</span> <span class='hs-varop'><?></span> <span class='hs-str'>"space"</span>
<a name="line-280"></a><span class='hs-comment'>{-# INLINE space #-}</span>
<a name="line-281"></a>
<a name="line-282"></a><a name="char"></a><span class='hs-comment'>-- | Match a specific character.</span>
<a name="line-283"></a><span class='hs-definition'>char</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-284"></a><span class='hs-definition'>char</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>satisfy</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varop'><?></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span>
<a name="line-285"></a><span class='hs-comment'>{-# INLINE char #-}</span>
<a name="line-286"></a>
<a name="line-287"></a><a name="char8"></a><span class='hs-comment'>-- | Match a specific character, but return its 'Word8' value.</span>
<a name="line-288"></a><span class='hs-definition'>char8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Word8</span>
<a name="line-289"></a><span class='hs-definition'>char8</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>satisfy</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-varid'>c2w</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varop'><?></span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span>
<a name="line-290"></a><span class='hs-comment'>{-# INLINE char8 #-}</span>
<a name="line-291"></a>
<a name="line-292"></a><a name="notChar"></a><span class='hs-comment'>-- | Match any character except the given one.</span>
<a name="line-293"></a><span class='hs-definition'>notChar</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>Char</span>
<a name="line-294"></a><span class='hs-definition'>notChar</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>satisfy</span> <span class='hs-layout'>(</span><span class='hs-varop'>/=</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-varop'><?></span> <span class='hs-str'>"not "</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span>
<a name="line-295"></a><span class='hs-comment'>{-# INLINE notChar #-}</span>
<a name="line-296"></a>
<a name="line-297"></a><a name="inClass"></a><span class='hs-comment'>-- | Match any character in a set.</span>
<a name="line-298"></a><span class='hs-comment'>--</span>
<a name="line-299"></a><span class='hs-comment'>-- >vowel = inClass "aeiou"</span>
<a name="line-300"></a><span class='hs-comment'>--</span>
<a name="line-301"></a><span class='hs-comment'>-- Range notation is supported.</span>
<a name="line-302"></a><span class='hs-comment'>--</span>
<a name="line-303"></a><span class='hs-comment'>-- >halfAlphabet = inClass "a-nA-N"</span>
<a name="line-304"></a><span class='hs-comment'>--</span>
<a name="line-305"></a><span class='hs-comment'>-- To add a literal \'-\' to a set, place it at the beginning or end</span>
<a name="line-306"></a><span class='hs-comment'>-- of the string.</span>
<a name="line-307"></a><span class='hs-definition'>inClass</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-308"></a><span class='hs-definition'>inClass</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varop'>`memberChar`</span> <span class='hs-varid'>mySet</span><span class='hs-layout'>)</span>
<a name="line-309"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>mySet</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>charClass</span> <span class='hs-varid'>s</span>
<a name="line-310"></a><span class='hs-comment'>{-# INLINE inClass #-}</span>
<a name="line-311"></a>
<a name="line-312"></a><a name="notInClass"></a><span class='hs-comment'>-- | Match any character not in a set.</span>
<a name="line-313"></a><span class='hs-definition'>notInClass</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-314"></a><span class='hs-definition'>notInClass</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>inClass</span> <span class='hs-varid'>s</span>
<a name="line-315"></a><span class='hs-comment'>{-# INLINE notInClass #-}</span>
<a name="line-316"></a>
<a name="line-317"></a><a name="takeWhile"></a><span class='hs-comment'>-- | Consume input as long as the predicate returns 'True', and return</span>
<a name="line-318"></a><span class='hs-comment'>-- the consumed input.</span>
<a name="line-319"></a><span class='hs-comment'>--</span>
<a name="line-320"></a><span class='hs-comment'>-- This parser does not fail. It will return an empty string if the</span>
<a name="line-321"></a><span class='hs-comment'>-- predicate returns 'False' on the first byte of input.</span>
<a name="line-322"></a><span class='hs-comment'>--</span>
<a name="line-323"></a><span class='hs-comment'>-- /Note/: Because this parser does not fail, do not use it with</span>
<a name="line-324"></a><span class='hs-comment'>-- combinators such as 'many', because such parsers loop until a</span>
<a name="line-325"></a><span class='hs-comment'>-- failure occurs. Careless use will thus result in an infinite loop.</span>
<a name="line-326"></a><span class='hs-definition'>takeWhile</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-327"></a><span class='hs-definition'>takeWhile</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>takeWhile</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-varop'>.</span> <span class='hs-varid'>w2c</span><span class='hs-layout'>)</span>
<a name="line-328"></a><span class='hs-comment'>{-# INLINE takeWhile #-}</span>
<a name="line-329"></a>
<a name="line-330"></a><a name="scan"></a><span class='hs-comment'>-- | A stateful scanner. The predicate consumes and transforms a</span>
<a name="line-331"></a><span class='hs-comment'>-- state argument, and each transformed state is passed to successive</span>
<a name="line-332"></a><span class='hs-comment'>-- invocations of the predicate on each byte of the input until one</span>
<a name="line-333"></a><span class='hs-comment'>-- returns 'Nothing' or the input ends.</span>
<a name="line-334"></a><span class='hs-comment'>--</span>
<a name="line-335"></a><span class='hs-comment'>-- This parser does not fail. It will return an empty string if the</span>
<a name="line-336"></a><span class='hs-comment'>-- predicate returns 'Nothing' on the first byte of input.</span>
<a name="line-337"></a><span class='hs-comment'>--</span>
<a name="line-338"></a><span class='hs-comment'>-- /Note/: Because this parser does not fail, do not use it with</span>
<a name="line-339"></a><span class='hs-comment'>-- combinators such as 'many', because such parsers loop until a</span>
<a name="line-340"></a><span class='hs-comment'>-- failure occurs. Careless use will thus result in an infinite loop.</span>
<a name="line-341"></a><span class='hs-definition'>scan</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-342"></a><span class='hs-definition'>scan</span> <span class='hs-varid'>s0</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>scan</span> <span class='hs-varid'>s0</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>p</span> <span class='hs-varid'>s</span> <span class='hs-varop'>.</span> <span class='hs-varid'>w2c</span><span class='hs-layout'>)</span>
<a name="line-343"></a><span class='hs-comment'>{-# INLINE scan #-}</span>
<a name="line-344"></a>
<a name="line-345"></a><a name="takeTill"></a><span class='hs-comment'>-- | Consume input as long as the predicate returns 'False'</span>
<a name="line-346"></a><span class='hs-comment'>-- (i.e. until it returns 'True'), and return the consumed input.</span>
<a name="line-347"></a><span class='hs-comment'>--</span>
<a name="line-348"></a><span class='hs-comment'>-- This parser does not fail. It will return an empty string if the</span>
<a name="line-349"></a><span class='hs-comment'>-- predicate returns 'True' on the first byte of input.</span>
<a name="line-350"></a><span class='hs-comment'>--</span>
<a name="line-351"></a><span class='hs-comment'>-- /Note/: Because this parser does not fail, do not use it with</span>
<a name="line-352"></a><span class='hs-comment'>-- combinators such as 'many', because such parsers loop until a</span>
<a name="line-353"></a><span class='hs-comment'>-- failure occurs. Careless use will thus result in an infinite loop.</span>
<a name="line-354"></a><span class='hs-definition'>takeTill</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-355"></a><span class='hs-definition'>takeTill</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>takeTill</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-varop'>.</span> <span class='hs-varid'>w2c</span><span class='hs-layout'>)</span>
<a name="line-356"></a><span class='hs-comment'>{-# INLINE takeTill #-}</span>
<a name="line-357"></a>
<a name="line-358"></a><a name="skipWhile"></a><span class='hs-comment'>-- | Skip past input for as long as the predicate returns 'True'.</span>
<a name="line-359"></a><span class='hs-definition'>skipWhile</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>()</span>
<a name="line-360"></a><span class='hs-definition'>skipWhile</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>skipWhile</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-varop'>.</span> <span class='hs-varid'>w2c</span><span class='hs-layout'>)</span>
<a name="line-361"></a><span class='hs-comment'>{-# INLINE skipWhile #-}</span>
<a name="line-362"></a>
<a name="line-363"></a><a name="skipSpace"></a><span class='hs-comment'>-- | Skip over white space.</span>
<a name="line-364"></a><span class='hs-definition'>skipSpace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-conid'>()</span>
<a name="line-365"></a><span class='hs-definition'>skipSpace</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>skipWhile</span> <span class='hs-varid'>isSpace_w8</span>
<a name="line-366"></a><span class='hs-comment'>{-# INLINE skipSpace #-}</span>
<a name="line-367"></a>
<a name="line-368"></a><span class='hs-comment'>-- $specalt</span>
<a name="line-369"></a><span class='hs-comment'>--</span>
<a name="line-370"></a><span class='hs-comment'>-- If you enable the @OverloadedStrings@ language extension, you can</span>
<a name="line-371"></a><span class='hs-comment'>-- use the '*>' and '<*' combinators to simplify the common task of</span>
<a name="line-372"></a><span class='hs-comment'>-- matching a statically known string, then immediately parsing</span>
<a name="line-373"></a><span class='hs-comment'>-- something else.</span>
<a name="line-374"></a><span class='hs-comment'>--</span>
<a name="line-375"></a><span class='hs-comment'>-- Instead of writing something like this:</span>
<a name="line-376"></a><span class='hs-comment'>--</span>
<a name="line-377"></a><span class='hs-comment'>-- @</span>
<a name="line-378"></a><span class='hs-comment'>--'I.string' \"foo\" '*>' wibble</span>
<a name="line-379"></a><span class='hs-comment'>-- @</span>
<a name="line-380"></a><span class='hs-comment'>--</span>
<a name="line-381"></a><span class='hs-comment'>-- Using @OverloadedStrings@, you can omit the explicit use of</span>
<a name="line-382"></a><span class='hs-comment'>-- 'I.string', and write a more compact version:</span>
<a name="line-383"></a><span class='hs-comment'>--</span>
<a name="line-384"></a><span class='hs-comment'>-- @</span>
<a name="line-385"></a><span class='hs-comment'>-- \"foo\" '*>' wibble</span>
<a name="line-386"></a><span class='hs-comment'>-- @</span>
<a name="line-387"></a><span class='hs-comment'>--</span>
<a name="line-388"></a><span class='hs-comment'>-- (Note: the '.*>' and '<*.' combinators that were originally</span>
<a name="line-389"></a><span class='hs-comment'>-- provided for this purpose are obsolete and unnecessary, and will be</span>
<a name="line-390"></a><span class='hs-comment'>-- removed in the next major version.)</span>
<a name="line-391"></a>
<a name="line-392"></a><a name=".*%3e"></a><span class='hs-comment'>-- | /Obsolete/. A type-specialized version of '*>' for</span>
<a name="line-393"></a><span class='hs-comment'>-- 'B.ByteString'. Use '*>' instead.</span>
<a name="line-394"></a><span class='hs-layout'>(</span><span class='hs-varop'>.*></span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span>
<a name="line-395"></a><a name="s"></a><span class='hs-definition'>s</span> <span class='hs-varop'>.*></span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>string</span> <span class='hs-varid'>s</span> <span class='hs-varop'>*></span> <span class='hs-varid'>f</span>
<a name="line-396"></a><span class='hs-comment'>{-# DEPRECATED (.*>) "This is no longer necessary, and will be removed. Use '*>' instead." #-}</span>
<a name="line-397"></a>
<a name="line-398"></a><a name="%3c*."></a><span class='hs-comment'>-- | /Obsolete/. A type-specialized version of '<*' for</span>
<a name="line-399"></a><span class='hs-comment'>-- 'B.ByteString'. Use '<*' instead.</span>
<a name="line-400"></a><span class='hs-layout'>(</span><span class='hs-varop'><*.</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span>
<a name="line-401"></a><a name="f"></a><span class='hs-definition'>f</span> <span class='hs-varop'><*.</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <span class='hs-varop'><*</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>string</span> <span class='hs-varid'>s</span>
<a name="line-402"></a><span class='hs-comment'>{-# DEPRECATED (<*.) "This is no longer necessary, and will be removed. Use '<*' instead." #-}</span>
<a name="line-403"></a>
<a name="line-404"></a><a name="isEndOfLine"></a><span class='hs-comment'>-- | A predicate that matches either a carriage return @\'\\r\'@ or</span>
<a name="line-405"></a><span class='hs-comment'>-- newline @\'\\n\'@ character.</span>
<a name="line-406"></a><span class='hs-definition'>isEndOfLine</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-407"></a><span class='hs-definition'>isEndOfLine</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span> <span class='hs-varop'>==</span> <span class='hs-num'>13</span> <span class='hs-varop'>||</span> <span class='hs-varid'>w</span> <span class='hs-varop'>==</span> <span class='hs-num'>10</span>
<a name="line-408"></a><span class='hs-comment'>{-# INLINE isEndOfLine #-}</span>
<a name="line-409"></a>
<a name="line-410"></a><a name="isHorizontalSpace"></a><span class='hs-comment'>-- | A predicate that matches either a space @\' \'@ or horizontal tab</span>
<a name="line-411"></a><span class='hs-comment'>-- @\'\\t\'@ character.</span>
<a name="line-412"></a><span class='hs-definition'>isHorizontalSpace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-413"></a><span class='hs-definition'>isHorizontalSpace</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span> <span class='hs-varop'>==</span> <span class='hs-num'>32</span> <span class='hs-varop'>||</span> <span class='hs-varid'>w</span> <span class='hs-varop'>==</span> <span class='hs-num'>9</span>
<a name="line-414"></a><span class='hs-comment'>{-# INLINE isHorizontalSpace #-}</span>
<a name="line-415"></a>
<a name="line-416"></a><a name="hexadecimal"></a><span class='hs-comment'>-- | Parse and decode an unsigned hexadecimal number. The hex digits</span>
<a name="line-417"></a><span class='hs-comment'>-- @\'a\'@ through @\'f\'@ may be upper or lower case.</span>
<a name="line-418"></a><span class='hs-comment'>--</span>
<a name="line-419"></a><span class='hs-comment'>-- This parser does not accept a leading @\"0x\"@ string.</span>
<a name="line-420"></a><span class='hs-definition'>hexadecimal</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Integral</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-conid'>Bits</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span>
<a name="line-421"></a><span class='hs-definition'>hexadecimal</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-varid'>step</span> <span class='hs-num'>0</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>takeWhile1</span> <span class='hs-varid'>isHexDigit</span>
<a name="line-422"></a> <span class='hs-keyword'>where</span>
<a name="line-423"></a> <span class='hs-varid'>isHexDigit</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>>=</span> <span class='hs-num'>48</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>57</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span>
<a name="line-424"></a> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>>=</span> <span class='hs-num'>97</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>102</span><span class='hs-layout'>)</span> <span class='hs-varop'>||</span>
<a name="line-425"></a> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>>=</span> <span class='hs-num'>65</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>70</span><span class='hs-layout'>)</span>
<a name="line-426"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>a</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>w</span> <span class='hs-varop'>>=</span> <span class='hs-num'>48</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>57</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>4</span><span class='hs-layout'>)</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-comment'>-</span> <span class='hs-num'>48</span><span class='hs-layout'>)</span>
<a name="line-427"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>w</span> <span class='hs-varop'>>=</span> <span class='hs-num'>97</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>4</span><span class='hs-layout'>)</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-comment'>-</span> <span class='hs-num'>87</span><span class='hs-layout'>)</span>
<a name="line-428"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>4</span><span class='hs-layout'>)</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-comment'>-</span> <span class='hs-num'>55</span><span class='hs-layout'>)</span>
<a name="line-429"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Int #-}</span>
<a name="line-430"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Int8 #-}</span>
<a name="line-431"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Int16 #-}</span>
<a name="line-432"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Int32 #-}</span>
<a name="line-433"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Int64 #-}</span>
<a name="line-434"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Integer #-}</span>
<a name="line-435"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Word #-}</span>
<a name="line-436"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Word8 #-}</span>
<a name="line-437"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Word16 #-}</span>
<a name="line-438"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Word32 #-}</span>
<a name="line-439"></a><span class='hs-comment'>{-# SPECIALISE hexadecimal :: Parser Word64 #-}</span>
<a name="line-440"></a>
<a name="line-441"></a><a name="decimal"></a><span class='hs-comment'>-- | Parse and decode an unsigned decimal number.</span>
<a name="line-442"></a><span class='hs-definition'>decimal</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Integral</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span>
<a name="line-443"></a><span class='hs-definition'>decimal</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-varid'>step</span> <span class='hs-num'>0</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>I</span><span class='hs-varop'>.</span><span class='hs-varid'>takeWhile1</span> <span class='hs-varid'>isDig</span>
<a name="line-444"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>isDig</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>w</span> <span class='hs-varop'>>=</span> <span class='hs-num'>48</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>57</span>
<a name="line-445"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>a</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>*</span> <span class='hs-num'>10</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-comment'>-</span> <span class='hs-num'>48</span><span class='hs-layout'>)</span>
<a name="line-446"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Int #-}</span>
<a name="line-447"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Int8 #-}</span>
<a name="line-448"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Int16 #-}</span>
<a name="line-449"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Int32 #-}</span>
<a name="line-450"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Int64 #-}</span>
<a name="line-451"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Integer #-}</span>
<a name="line-452"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Word #-}</span>
<a name="line-453"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Word8 #-}</span>
<a name="line-454"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Word16 #-}</span>
<a name="line-455"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Word32 #-}</span>
<a name="line-456"></a><span class='hs-comment'>{-# SPECIALISE decimal :: Parser Word64 #-}</span>
<a name="line-457"></a>
<a name="line-458"></a><a name="signed"></a><span class='hs-comment'>-- | Parse a number with an optional leading @\'+\'@ or @\'-\'@ sign</span>
<a name="line-459"></a><span class='hs-comment'>-- character.</span>
<a name="line-460"></a><span class='hs-definition'>signed</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Num</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Parser</span> <span class='hs-varid'>a</span>
<a name="line-461"></a><span class='hs-comment'>{-# SPECIALISE signed :: Parser Int -> Parser Int #-}</span>
<a name="line-462"></a><span class='hs-comment'>{-# SPECIALISE signed :: Parser Int8 -> Parser Int8 #-}</span>
<a name="line-463"></a><span class='hs-comment'>{-# SPECIALISE signed :: Parser Int16 -> Parser Int16 #-}</span>
<a name="line-464"></a><span class='hs-comment'>{-# SPECIALISE signed :: Parser Int32 -> Parser Int32 #-}</span>
<a name="line-465"></a><span class='hs-comment'>{-# SPECIALISE signed :: Parser Int64 -> Parser Int64 #-}</span>
<a name="line-466"></a><span class='hs-comment'>{-# SPECIALISE signed :: Parser Integer -> Parser Integer #-}</span>
<a name="line-467"></a><span class='hs-definition'>signed</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>negate</span> <span class='hs-varop'><$></span> <span class='hs-layout'>(</span><span class='hs-varid'>char8</span> <span class='hs-chr'>'-'</span> <span class='hs-varop'>*></span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-468"></a> <span class='hs-varop'><|></span> <span class='hs-layout'>(</span><span class='hs-varid'>char8</span> <span class='hs-chr'>'+'</span> <span class='hs-varop'>*></span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-469"></a> <span class='hs-varop'><|></span> <span class='hs-varid'>p</span>
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