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<pre><a name="line-1"></a>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-4"></a><span class='hs-comment'>-- |</span>
<a name="line-5"></a><span class='hs-comment'>-- Module: Data.Enumerator.Text</span>
<a name="line-6"></a><span class='hs-comment'>-- Copyright: 2010 John Millikin</span>
<a name="line-7"></a><span class='hs-comment'>-- License: MIT</span>
<a name="line-8"></a><span class='hs-comment'>--</span>
<a name="line-9"></a><span class='hs-comment'>-- Maintainer: jmillikin@gmail.com</span>
<a name="line-10"></a><span class='hs-comment'>-- Portability: portable</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- Character-oriented alternatives to "Data.Enumerator.List". Note that the</span>
<a name="line-13"></a><span class='hs-comment'>-- enumeratees in this module must unpack their inputs to work properly. If</span>
<a name="line-14"></a><span class='hs-comment'>-- you do not need to handle leftover input on a char-by-char basis, the</span>
<a name="line-15"></a><span class='hs-comment'>-- chunk-oriented versions will be much faster.</span>
<a name="line-16"></a><span class='hs-comment'>--</span>
<a name="line-17"></a><span class='hs-comment'>-- This module is intended to be imported qualified:</span>
<a name="line-18"></a><span class='hs-comment'>--</span>
<a name="line-19"></a><span class='hs-comment'>-- @</span>
<a name="line-20"></a><span class='hs-comment'>-- import qualified Data.Enumerator.Text as ET</span>
<a name="line-21"></a><span class='hs-comment'>-- @</span>
<a name="line-22"></a><span class='hs-comment'>--</span>
<a name="line-23"></a><span class='hs-comment'>-- Since: 0.2</span>
<a name="line-24"></a><span class='hs-comment'>--</span>
<a name="line-25"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-26"></a>
<a name="line-27"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-layout'>(</span>
<a name="line-28"></a>
<a name="line-29"></a> <span class='hs-comment'>-- * IO</span>
<a name="line-30"></a> <span class='hs-varid'>enumHandle</span>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>enumFile</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>iterHandle</span>
<a name="line-33"></a>
<a name="line-34"></a> <span class='hs-comment'>-- * List analogues</span>
<a name="line-35"></a>
<a name="line-36"></a> <span class='hs-comment'>-- ** Folds</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>fold</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldM</span>
<a name="line-39"></a>
<a name="line-40"></a> <span class='hs-comment'>-- ** Maps</span>
<a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span>
<a name="line-42"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>mapM</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>mapM_</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>concatMap</span>
<a name="line-45"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>concatMapM</span>
<a name="line-46"></a>
<a name="line-47"></a> <span class='hs-comment'>-- ** Accumulating maps</span>
<a name="line-48"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>mapAccum</span>
<a name="line-49"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>mapAccumM</span>
<a name="line-50"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>concatMapAccum</span>
<a name="line-51"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>concatMapAccumM</span>
<a name="line-52"></a>
<a name="line-53"></a> <span class='hs-comment'>-- ** Infinite streams</span>
<a name="line-54"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>iterate</span>
<a name="line-55"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>iterateM</span>
<a name="line-56"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>repeat</span>
<a name="line-57"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>repeatM</span>
<a name="line-58"></a>
<a name="line-59"></a> <span class='hs-comment'>-- ** Bounded streams</span>
<a name="line-60"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>replicate</span>
<a name="line-61"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>replicateM</span>
<a name="line-62"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>generateM</span>
<a name="line-63"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unfold</span>
<a name="line-64"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unfoldM</span>
<a name="line-65"></a>
<a name="line-66"></a> <span class='hs-comment'>-- ** Filters</span>
<a name="line-67"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>filter</span>
<a name="line-68"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>filterM</span>
<a name="line-69"></a>
<a name="line-70"></a> <span class='hs-comment'>-- ** Consumers</span>
<a name="line-71"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>take</span>
<a name="line-72"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>takeWhile</span>
<a name="line-73"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>consume</span>
<a name="line-74"></a>
<a name="line-75"></a> <span class='hs-comment'>-- ** Unsorted</span>
<a name="line-76"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span>
<a name="line-77"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span>
<a name="line-78"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>dropWhile</span>
<a name="line-79"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>require</span>
<a name="line-80"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>isolate</span>
<a name="line-81"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>splitWhen</span>
<a name="line-82"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>lines</span>
<a name="line-83"></a>
<a name="line-84"></a> <span class='hs-comment'>-- * Text codecs</span>
<a name="line-85"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Codec</span>
<a name="line-86"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>encode</span>
<a name="line-87"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decode</span>
<a name="line-88"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>utf8</span>
<a name="line-89"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>utf16_le</span>
<a name="line-90"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>utf16_be</span>
<a name="line-91"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>utf32_le</span>
<a name="line-92"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>utf32_be</span>
<a name="line-93"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>ascii</span>
<a name="line-94"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>iso8859_1</span>
<a name="line-95"></a>
<a name="line-96"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-97"></a>
<a name="line-98"></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'>head</span><span class='hs-layout'>,</span> <span class='hs-varid'>drop</span><span class='hs-layout'>,</span> <span class='hs-varid'>takeWhile</span><span class='hs-layout'>,</span> <span class='hs-varid'>lines</span><span class='hs-layout'>)</span>
<a name="line-99"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Prelude</span>
<a name="line-100"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span> <span class='hs-varid'>head</span><span class='hs-layout'>,</span> <span class='hs-varid'>drop</span><span class='hs-layout'>,</span> <span class='hs-varid'>generateM</span><span class='hs-layout'>,</span> <span class='hs-varid'>filterM</span><span class='hs-layout'>,</span> <span class='hs-varid'>consume</span>
<a name="line-101"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>concatMapM</span><span class='hs-layout'>,</span> <span class='hs-varid'>iterateM</span><span class='hs-layout'>,</span> <span class='hs-varid'>repeatM</span><span class='hs-layout'>,</span> <span class='hs-varid'>replicateM</span>
<a name="line-102"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>foldM</span><span class='hs-layout'>)</span>
<a name="line-103"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span> <span class='hs-layout'>(</span><span class='hs-varid'>tSpanBy</span><span class='hs-layout'>,</span> <span class='hs-varid'>tlSpanBy</span><span class='hs-layout'>,</span> <span class='hs-varid'>reprWord</span><span class='hs-layout'>,</span> <span class='hs-varid'>reprChar</span><span class='hs-layout'>,</span> <span class='hs-varid'>textToStrict</span><span class='hs-layout'>)</span>
<a name="line-104"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span> <span class='hs-layout'>(</span><span class='hs-conid'>MonadIO</span><span class='hs-layout'>)</span>
<a name="line-105"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Exc</span>
<a name="line-106"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</span> <span class='hs-layout'>(</span><span class='hs-varid'>first</span><span class='hs-layout'>)</span>
<a name="line-107"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>catMaybes</span><span class='hs-layout'>)</span>
<a name="line-108"></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'>Text</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>T</span>
<a name="line-109"></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'>B</span>
<a name="line-110"></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'>B8</span>
<a name="line-111"></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'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Encoding</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>TE</span>
<a name="line-112"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span> <span class='hs-layout'>(</span><span class='hs-conid'>Word8</span><span class='hs-layout'>,</span> <span class='hs-conid'>Word16</span><span class='hs-layout'>)</span>
<a name="line-113"></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-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-varid'>shiftL</span><span class='hs-layout'>)</span>
<a name="line-114"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>IO</span>
<a name="line-115"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Error</span> <span class='hs-layout'>(</span><span class='hs-varid'>isEOFError</span><span class='hs-layout'>)</span>
<a name="line-116"></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'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>TIO</span>
<a name="line-117"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span><span class='hs-varid'>ord</span><span class='hs-layout'>)</span>
<a name="line-118"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafePerformIO</span><span class='hs-layout'>)</span>
<a name="line-119"></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'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>Lazy</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>TL</span>
<a name="line-120"></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'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>EL</span>
<a name="line-121"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>CM</span>
<a name="line-122"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span><span class='hs-varop'>.</span><span class='hs-conid'>Trans</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span> <span class='hs-layout'>(</span><span class='hs-varid'>lift</span><span class='hs-layout'>)</span>
<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'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span><span class='hs-layout'>)</span>
<a name="line-124"></a>
<a name="line-125"></a>
<a name="line-126"></a>
<a name="line-127"></a><span class='hs-comment'>-- | Consume the entire input stream with a strict left fold, one character</span>
<a name="line-128"></a><span class='hs-comment'>-- at a time.</span>
<a name="line-129"></a><span class='hs-comment'>--</span>
<a name="line-130"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-131"></a>
<a name="line-132"></a><a name="fold"></a><span class='hs-definition'>fold</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span>
<a name="line-133"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-134"></a><span class='hs-definition'>fold</span> <span class='hs-varid'>step</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EL</span><span class='hs-varop'>.</span><span class='hs-varid'>fold</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>foldl'</span> <span class='hs-varid'>step</span><span class='hs-layout'>)</span>
<a name="line-135"></a>
<a name="line-136"></a>
<a name="line-137"></a><span class='hs-comment'>-- | Consume the entire input stream with a strict monadic left fold, one</span>
<a name="line-138"></a><span class='hs-comment'>-- character at a time.</span>
<a name="line-139"></a><span class='hs-comment'>--</span>
<a name="line-140"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-141"></a>
<a name="line-142"></a><a name="foldM"></a><span class='hs-definition'>foldM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span>
<a name="line-143"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-144"></a><span class='hs-definition'>foldM</span> <span class='hs-varid'>step</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EL</span><span class='hs-varop'>.</span><span class='hs-varid'>foldM</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>b</span> <span class='hs-varid'>txt</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>CM</span><span class='hs-varop'>.</span><span class='hs-varid'>foldM</span> <span class='hs-varid'>step</span> <span class='hs-varid'>b</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>txt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-145"></a>
<a name="line-146"></a>
<a name="line-147"></a><span class='hs-comment'>-- | Enumerates a stream of characters by repeatedly applying a function to</span>
<a name="line-148"></a><span class='hs-comment'>-- some state.</span>
<a name="line-149"></a><span class='hs-comment'>--</span>
<a name="line-150"></a><span class='hs-comment'>-- Similar to 'iterate'.</span>
<a name="line-151"></a><span class='hs-comment'>--</span>
<a name="line-152"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-153"></a>
<a name="line-154"></a><a name="unfold"></a><span class='hs-definition'>unfold</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span><span class='hs-layout'>,</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</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-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-155"></a><span class='hs-definition'>unfold</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkContinue1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>of</span>
<a name="line-156"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>continue</span> <span class='hs-varid'>k</span>
<a name="line-157"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>s'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>s'</span>
<a name="line-158"></a>
<a name="line-159"></a>
<a name="line-160"></a><span class='hs-comment'>-- | Enumerates a stream of characters by repeatedly applying a computation</span>
<a name="line-161"></a><span class='hs-comment'>-- to some state.</span>
<a name="line-162"></a><span class='hs-comment'>--</span>
<a name="line-163"></a><span class='hs-comment'>-- Similar to 'iterateM'.</span>
<a name="line-164"></a><span class='hs-comment'>--</span>
<a name="line-165"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-166"></a>
<a name="line-167"></a><a name="unfoldM"></a><span class='hs-definition'>unfoldM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Char</span><span class='hs-layout'>,</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span><span class='hs-layout'>)</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-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-168"></a><span class='hs-definition'>unfoldM</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkContinue1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-169"></a> <span class='hs-varid'>fs</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lift</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-170"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>fs</span> <span class='hs-keyword'>of</span>
<a name="line-171"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>continue</span> <span class='hs-varid'>k</span>
<a name="line-172"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>s'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>c</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>s'</span>
<a name="line-173"></a>
<a name="line-174"></a>
<a name="line-175"></a><span class='hs-comment'>-- | @'map' f@ applies /f/ to each input character and feeds the</span>
<a name="line-176"></a><span class='hs-comment'>-- resulting outputs to the inner iteratee.</span>
<a name="line-177"></a><span class='hs-comment'>--</span>
<a name="line-178"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-179"></a>
<a name="line-180"></a><a name="map"></a><span class='hs-definition'>map</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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'>Char</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-181"></a><span class='hs-definition'>map</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>concatMap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-182"></a>
<a name="line-183"></a>
<a name="line-184"></a><span class='hs-comment'>-- | @'mapM' f@ applies /f/ to each input character and feeds the</span>
<a name="line-185"></a><span class='hs-comment'>-- resulting outputs to the inner iteratee.</span>
<a name="line-186"></a><span class='hs-comment'>--</span>
<a name="line-187"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-188"></a>
<a name="line-189"></a><a name="mapM"></a><span class='hs-definition'>mapM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-varid'>m</span> <span class='hs-conid'>Char</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-190"></a><span class='hs-definition'>mapM</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>concatMapM</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>liftM</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-191"></a>
<a name="line-192"></a>
<a name="line-193"></a><span class='hs-comment'>-- | @'mapM_' f@ applies /f/ to each input character, and discards the</span>
<a name="line-194"></a><span class='hs-comment'>-- results.</span>
<a name="line-195"></a><span class='hs-comment'>--</span>
<a name="line-196"></a><span class='hs-comment'>-- Since: 0.4.11</span>
<a name="line-197"></a>
<a name="line-198"></a><a name="mapM_"></a><span class='hs-definition'>mapM_</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-varid'>m</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-199"></a><span class='hs-definition'>mapM_</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldM</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-keyword'>_</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-conid'>()</span>
<a name="line-200"></a>
<a name="line-201"></a>
<a name="line-202"></a><span class='hs-comment'>-- | @'concatMap' f@ applies /f/ to each input character and feeds the</span>
<a name="line-203"></a><span class='hs-comment'>-- resulting outputs to the inner iteratee.</span>
<a name="line-204"></a><span class='hs-comment'>--</span>
<a name="line-205"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-206"></a>
<a name="line-207"></a><a name="concatMap"></a><span class='hs-definition'>concatMap</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-208"></a><span class='hs-definition'>concatMap</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>concatMapM</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varop'>.</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-209"></a>
<a name="line-210"></a>
<a name="line-211"></a><span class='hs-comment'>-- | @'concatMapM' f@ applies /f/ to each input character and feeds the</span>
<a name="line-212"></a><span class='hs-comment'>-- resulting outputs to the inner iteratee.</span>
<a name="line-213"></a><span class='hs-comment'>--</span>
<a name="line-214"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-215"></a>
<a name="line-216"></a><a name="concatMapM"></a><span class='hs-definition'>concatMapM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-varid'>m</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-217"></a><span class='hs-definition'>concatMapM</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkDone</span> <span class='hs-layout'>(</span><span class='hs-varid'>continue</span> <span class='hs-varop'>.</span> <span class='hs-varid'>step</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-218"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>k</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>Continue</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-219"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-220"></a>
<a name="line-221"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>k</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>step</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-222"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-223"></a> <span class='hs-varid'>fx</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lift</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-224"></a> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>fx</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span>
<a name="line-225"></a> <span class='hs-varid'>checkDoneEx</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varid'>xs</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>k'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varid'>k'</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-226"></a>
<a name="line-227"></a>
<a name="line-228"></a><span class='hs-comment'>-- | Similar to 'concatMap', but with a stateful step function.</span>
<a name="line-229"></a><span class='hs-comment'>--</span>
<a name="line-230"></a><span class='hs-comment'>-- Since: 0.4.11</span>
<a name="line-231"></a>
<a name="line-232"></a><a name="concatMapAccum"></a><span class='hs-definition'>concatMapAccum</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-layout'>(</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</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-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-233"></a><span class='hs-definition'>concatMapAccum</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkDone</span> <span class='hs-layout'>(</span><span class='hs-varid'>continue</span> <span class='hs-varop'>.</span> <span class='hs-varid'>step</span> <span class='hs-varid'>s0</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-234"></a> <span class='hs-varid'>step</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>k</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>Continue</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-235"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-varid'>xs</span>
<a name="line-236"></a>
<a name="line-237"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>step</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-238"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-239"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-varid'>xs</span>
<a name="line-240"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>x'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>of</span>
<a name="line-241"></a> <span class='hs-layout'>(</span><span class='hs-varid'>s'</span><span class='hs-layout'>,</span> <span class='hs-varid'>ai</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>ai</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span>
<a name="line-242"></a> <span class='hs-varid'>checkDoneEx</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-layout'>(</span><span class='hs-varid'>x'</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>k'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>k'</span> <span class='hs-layout'>(</span><span class='hs-varid'>x'</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-243"></a>
<a name="line-244"></a>
<a name="line-245"></a><span class='hs-comment'>-- | Similar to 'concatMapM', but with a stateful step function.</span>
<a name="line-246"></a><span class='hs-comment'>--</span>
<a name="line-247"></a><span class='hs-comment'>-- Since: 0.4.11</span>
<a name="line-248"></a>
<a name="line-249"></a><a name="concatMapAccumM"></a><span class='hs-definition'>concatMapAccumM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</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-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-250"></a><span class='hs-definition'>concatMapAccumM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkDone</span> <span class='hs-layout'>(</span><span class='hs-varid'>continue</span> <span class='hs-varop'>.</span> <span class='hs-varid'>step</span> <span class='hs-varid'>s0</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-251"></a> <span class='hs-varid'>step</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>k</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>Continue</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-252"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-varid'>xs</span>
<a name="line-253"></a>
<a name="line-254"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>step</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-255"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span>
<a name="line-256"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-varid'>xs</span>
<a name="line-257"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>x'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-258"></a> <span class='hs-layout'>(</span><span class='hs-varid'>s'</span><span class='hs-layout'>,</span> <span class='hs-varid'>ai</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lift</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>s</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-259"></a> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>ai</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span>
<a name="line-260"></a> <span class='hs-varid'>checkDoneEx</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-layout'>(</span><span class='hs-varid'>x'</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>k'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>k'</span> <span class='hs-layout'>(</span><span class='hs-varid'>x'</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-261"></a>
<a name="line-262"></a>
<a name="line-263"></a><span class='hs-comment'>-- | Similar to 'map', but with a stateful step function.</span>
<a name="line-264"></a><span class='hs-comment'>--</span>
<a name="line-265"></a><span class='hs-comment'>-- Since: 0.4.9</span>
<a name="line-266"></a>
<a name="line-267"></a><a name="mapAccum"></a><span class='hs-definition'>mapAccum</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-layout'>(</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-conid'>Char</span><span class='hs-layout'>)</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-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-268"></a><span class='hs-definition'>mapAccum</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatMapAccum</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>case</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s</span> <span class='hs-varid'>c</span> <span class='hs-keyword'>of</span> <span class='hs-layout'>(</span><span class='hs-varid'>s'</span><span class='hs-layout'>,</span> <span class='hs-varid'>c'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>s'</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>c'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-269"></a>
<a name="line-270"></a>
<a name="line-271"></a><span class='hs-comment'>-- | Similar to 'mapM', but with a stateful step function.</span>
<a name="line-272"></a><span class='hs-comment'>--</span>
<a name="line-273"></a><span class='hs-comment'>-- Since: 0.4.9</span>
<a name="line-274"></a>
<a name="line-275"></a><a name="mapAccumM"></a><span class='hs-definition'>mapAccumM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span><span class='hs-layout'>,</span> <span class='hs-conid'>Char</span><span class='hs-layout'>)</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-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-276"></a><span class='hs-definition'>mapAccumM</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>concatMapAccumM</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>s</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-277"></a> <span class='hs-layout'>(</span><span class='hs-varid'>s'</span><span class='hs-layout'>,</span> <span class='hs-varid'>c'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>f</span> <span class='hs-varid'>s</span> <span class='hs-varid'>c</span>
<a name="line-278"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>s'</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>c'</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-279"></a>
<a name="line-280"></a>
<a name="line-281"></a><span class='hs-comment'>-- | @'iterate' f x@ enumerates an infinite stream of repeated applications</span>
<a name="line-282"></a><span class='hs-comment'>-- of /f/ to /x/.</span>
<a name="line-283"></a><span class='hs-comment'>--</span>
<a name="line-284"></a><span class='hs-comment'>-- Analogous to 'Prelude.iterate'.</span>
<a name="line-285"></a><span class='hs-comment'>--</span>
<a name="line-286"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-287"></a>
<a name="line-288"></a><a name="iterate"></a><span class='hs-definition'>iterate</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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'>Char</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-289"></a><span class='hs-definition'>iterate</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkContinue1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>loop</span> <span class='hs-varid'>s</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>s</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span>
<a name="line-290"></a>
<a name="line-291"></a>
<a name="line-292"></a><span class='hs-comment'>-- | Similar to 'iterate', except the iteration function is monadic.</span>
<a name="line-293"></a><span class='hs-comment'>--</span>
<a name="line-294"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-295"></a>
<a name="line-296"></a><a name="iterateM"></a><span class='hs-definition'>iterateM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-varid'>m</span> <span class='hs-conid'>Char</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-297"></a><span class='hs-definition'>iterateM</span> <span class='hs-varid'>f</span> <span class='hs-varid'>base</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>worker</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varid'>base</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-298"></a> <span class='hs-varid'>worker</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkContinue1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>loop</span> <span class='hs-varid'>m_char</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-299"></a> <span class='hs-varid'>char</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>lift</span> <span class='hs-varid'>m_char</span>
<a name="line-300"></a> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>char</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varid'>char</span><span class='hs-layout'>)</span>
<a name="line-301"></a>
<a name="line-302"></a>
<a name="line-303"></a><span class='hs-comment'>-- | Enumerates an infinite stream of a single character.</span>
<a name="line-304"></a><span class='hs-comment'>--</span>
<a name="line-305"></a><span class='hs-comment'>-- Analogous to 'Prelude.repeat'.</span>
<a name="line-306"></a><span class='hs-comment'>--</span>
<a name="line-307"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-308"></a>
<a name="line-309"></a><a name="repeat"></a><span class='hs-definition'>repeat</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-310"></a><span class='hs-definition'>repeat</span> <span class='hs-varid'>char</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EL</span><span class='hs-varop'>.</span><span class='hs-varid'>repeat</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>char</span><span class='hs-layout'>)</span>
<a name="line-311"></a>
<a name="line-312"></a>
<a name="line-313"></a><span class='hs-comment'>-- | Enumerates an infinite stream of characters. Each character is computed</span>
<a name="line-314"></a><span class='hs-comment'>-- by the underlying monad.</span>
<a name="line-315"></a><span class='hs-comment'>--</span>
<a name="line-316"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-317"></a>
<a name="line-318"></a><a name="repeatM"></a><span class='hs-definition'>repeatM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-319"></a><span class='hs-definition'>repeatM</span> <span class='hs-varid'>next</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EL</span><span class='hs-varop'>.</span><span class='hs-varid'>repeatM</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>next</span><span class='hs-layout'>)</span>
<a name="line-320"></a>
<a name="line-321"></a>
<a name="line-322"></a><span class='hs-comment'>-- | @'replicate' n x@ enumerates a stream containing /n/ copies of /x/.</span>
<a name="line-323"></a><span class='hs-comment'>--</span>
<a name="line-324"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-325"></a>
<a name="line-326"></a><a name="replicate"></a><span class='hs-definition'>replicate</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-327"></a><span class='hs-definition'>replicate</span> <span class='hs-varid'>n</span> <span class='hs-varid'>byte</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EL</span><span class='hs-varop'>.</span><span class='hs-varid'>replicate</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>byte</span><span class='hs-layout'>)</span>
<a name="line-328"></a>
<a name="line-329"></a>
<a name="line-330"></a><span class='hs-comment'>-- | @'replicateM' n m_x@ enumerates a stream of /n/ characters, with each</span>
<a name="line-331"></a><span class='hs-comment'>-- character computed by /m_x/.</span>
<a name="line-332"></a><span class='hs-comment'>--</span>
<a name="line-333"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-334"></a>
<a name="line-335"></a><a name="replicateM"></a><span class='hs-definition'>replicateM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>m</span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-336"></a><span class='hs-definition'>replicateM</span> <span class='hs-varid'>n</span> <span class='hs-varid'>next</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EL</span><span class='hs-varop'>.</span><span class='hs-varid'>replicateM</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span> <span class='hs-varid'>next</span><span class='hs-layout'>)</span>
<a name="line-337"></a>
<a name="line-338"></a>
<a name="line-339"></a><span class='hs-comment'>-- | Like 'repeatM', except the computation may terminate the stream by</span>
<a name="line-340"></a><span class='hs-comment'>-- returning 'Nothing'.</span>
<a name="line-341"></a><span class='hs-comment'>--</span>
<a name="line-342"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-343"></a>
<a name="line-344"></a><a name="generateM"></a><span class='hs-definition'>generateM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>m</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>Char</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-345"></a><span class='hs-definition'>generateM</span> <span class='hs-varid'>next</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>EL</span><span class='hs-varop'>.</span><span class='hs-varid'>generateM</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>singleton</span><span class='hs-layout'>)</span> <span class='hs-varid'>next</span><span class='hs-layout'>)</span>
<a name="line-346"></a>
<a name="line-347"></a>
<a name="line-348"></a><span class='hs-comment'>-- | Applies a predicate to the stream. The inner iteratee only receives</span>
<a name="line-349"></a><span class='hs-comment'>-- characters for which the predicate is @True@.</span>
<a name="line-350"></a><span class='hs-comment'>--</span>
<a name="line-351"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-352"></a>
<a name="line-353"></a><a name="filter"></a><span class='hs-definition'>filter</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-354"></a><span class='hs-definition'>filter</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>concatMap</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>p</span> <span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-355"></a>
<a name="line-356"></a>
<a name="line-357"></a><span class='hs-comment'>-- | Applies a monadic predicate to the stream. The inner iteratee only</span>
<a name="line-358"></a><span class='hs-comment'>-- receives characters for which the predicate returns @True@.</span>
<a name="line-359"></a><span class='hs-comment'>--</span>
<a name="line-360"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-361"></a>
<a name="line-362"></a><a name="filterM"></a><span class='hs-definition'>filterM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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-varid'>m</span> <span class='hs-conid'>Bool</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-363"></a><span class='hs-definition'>filterM</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Enumerator</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-varid'>concatMapM</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>liftM</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>CM</span><span class='hs-varop'>.</span><span class='hs-varid'>filterM</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-364"></a>
<a name="line-365"></a>
<a name="line-366"></a><span class='hs-comment'>-- | @'take' n@ extracts the next /n/ characters from the stream, as a lazy</span>
<a name="line-367"></a><span class='hs-comment'>-- Text.</span>
<a name="line-368"></a><span class='hs-comment'>--</span>
<a name="line-369"></a><span class='hs-comment'>-- Since: 0.4.5</span>
<a name="line-370"></a>
<a name="line-371"></a><a name="take"></a><span class='hs-definition'>take</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-372"></a><span class='hs-definition'>take</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'><=</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-373"></a><span class='hs-definition'>take</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-varid'>id</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-374"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>n'</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>iter</span> <span class='hs-keyword'>where</span>
<a name="line-375"></a> <span class='hs-varid'>lazy</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span>
<a name="line-376"></a> <span class='hs-varid'>len</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toInteger</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span>
<a name="line-377"></a>
<a name="line-378"></a> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>len</span> <span class='hs-varop'><</span> <span class='hs-varid'>n'</span>
<a name="line-379"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>n'</span> <span class='hs-comment'>-</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-380"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>let</span>
<a name="line-381"></a> <span class='hs-layout'>(</span><span class='hs-varid'>xs'</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>n'</span><span class='hs-layout'>)</span> <span class='hs-varid'>lazy</span>
<a name="line-382"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-varid'>xs'</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toChunks</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-383"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-384"></a>
<a name="line-385"></a>
<a name="line-386"></a><span class='hs-comment'>-- | @'takeWhile' p@ extracts input from the stream until the first character</span>
<a name="line-387"></a><span class='hs-comment'>-- which does not match the predicate.</span>
<a name="line-388"></a><span class='hs-comment'>--</span>
<a name="line-389"></a><span class='hs-comment'>-- Since: 0.4.5</span>
<a name="line-390"></a>
<a name="line-391"></a><a name="takeWhile"></a><span class='hs-definition'>takeWhile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-392"></a><span class='hs-definition'>takeWhile</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-393"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span><span class='hs-layout'>)</span>
<a name="line-394"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>iter</span> <span class='hs-keyword'>where</span>
<a name="line-395"></a> <span class='hs-varid'>lazy</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span>
<a name="line-396"></a> <span class='hs-layout'>(</span><span class='hs-varid'>xs'</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tlSpanBy</span> <span class='hs-varid'>p</span> <span class='hs-varid'>lazy</span>
<a name="line-397"></a> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>extra</span>
<a name="line-398"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-399"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-varid'>xs'</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toChunks</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-400"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-401"></a>
<a name="line-402"></a>
<a name="line-403"></a><span class='hs-comment'>-- | @'consume' = 'takeWhile' (const True)@</span>
<a name="line-404"></a><span class='hs-comment'>--</span>
<a name="line-405"></a><span class='hs-comment'>-- Since: 0.4.5</span>
<a name="line-406"></a>
<a name="line-407"></a><a name="consume"></a><span class='hs-definition'>consume</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-408"></a><span class='hs-definition'>consume</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-varid'>id</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-409"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span><span class='hs-layout'>)</span>
<a name="line-410"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>iter</span> <span class='hs-keyword'>where</span>
<a name="line-411"></a> <span class='hs-varid'>lazy</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span>
<a name="line-412"></a> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-413"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-414"></a>
<a name="line-415"></a>
<a name="line-416"></a><span class='hs-comment'>-- | Get the next character from the stream, or 'Nothing' if the stream has</span>
<a name="line-417"></a><span class='hs-comment'>-- ended.</span>
<a name="line-418"></a><span class='hs-comment'>--</span>
<a name="line-419"></a><span class='hs-comment'>-- Since: 0.4.5</span>
<a name="line-420"></a>
<a name="line-421"></a><a name="head"></a><span class='hs-definition'>head</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</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-422"></a><span class='hs-definition'>head</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>loop</span> <span class='hs-keyword'>where</span>
<a name="line-423"></a> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>uncons</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-424"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>char</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>char</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toChunks</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-425"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>head</span>
<a name="line-426"></a> <span class='hs-varid'>loop</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>EOF</span>
<a name="line-427"></a>
<a name="line-428"></a>
<a name="line-429"></a><span class='hs-comment'>-- | @'drop' n@ ignores /n/ characters of input from the stream.</span>
<a name="line-430"></a><span class='hs-comment'>--</span>
<a name="line-431"></a><span class='hs-comment'>-- Since: 0.4.5</span>
<a name="line-432"></a>
<a name="line-433"></a><a name="drop"></a><span class='hs-definition'>drop</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-434"></a><span class='hs-definition'>drop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'><=</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-435"></a><span class='hs-definition'>drop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-436"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n'</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>iter</span> <span class='hs-keyword'>where</span>
<a name="line-437"></a> <span class='hs-varid'>lazy</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span>
<a name="line-438"></a> <span class='hs-varid'>len</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toInteger</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span>
<a name="line-439"></a> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>len</span> <span class='hs-varop'><</span> <span class='hs-varid'>n'</span>
<a name="line-440"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>n'</span> <span class='hs-comment'>-</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span>
<a name="line-441"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>yield</span> <span class='hs-conid'>()</span> <span class='hs-layout'>(</span><span class='hs-varid'>toChunks</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>n'</span><span class='hs-layout'>)</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-442"></a> <span class='hs-varid'>loop</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-conid'>()</span> <span class='hs-conid'>EOF</span>
<a name="line-443"></a>
<a name="line-444"></a>
<a name="line-445"></a><span class='hs-comment'>-- | @'dropWhile' p@ ignores input from the stream until the first character</span>
<a name="line-446"></a><span class='hs-comment'>-- which does not match the predicate.</span>
<a name="line-447"></a><span class='hs-comment'>--</span>
<a name="line-448"></a><span class='hs-comment'>-- Since: 0.4.5</span>
<a name="line-449"></a>
<a name="line-450"></a><a name="dropWhile"></a><span class='hs-definition'>dropWhile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-451"></a><span class='hs-definition'>dropWhile</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>loop</span> <span class='hs-keyword'>where</span>
<a name="line-452"></a> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>iter</span> <span class='hs-keyword'>where</span>
<a name="line-453"></a> <span class='hs-varid'>lazy</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>dropWhile</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-454"></a> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>lazy</span>
<a name="line-455"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>loop</span>
<a name="line-456"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>yield</span> <span class='hs-conid'>()</span> <span class='hs-layout'>(</span><span class='hs-varid'>toChunks</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span>
<a name="line-457"></a> <span class='hs-varid'>loop</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-conid'>()</span> <span class='hs-conid'>EOF</span>
<a name="line-458"></a>
<a name="line-459"></a>
<a name="line-460"></a><span class='hs-comment'>-- | @'require' n@ buffers input until at least /n/ characters are available,</span>
<a name="line-461"></a><span class='hs-comment'>-- or throws an error if the stream ends early.</span>
<a name="line-462"></a><span class='hs-comment'>--</span>
<a name="line-463"></a><span class='hs-comment'>-- Since: 0.4.5</span>
<a name="line-464"></a>
<a name="line-465"></a><a name="require"></a><span class='hs-definition'>require</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-466"></a><span class='hs-definition'>require</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'><=</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-467"></a><span class='hs-definition'>require</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-varid'>id</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-468"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>n'</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>iter</span> <span class='hs-keyword'>where</span>
<a name="line-469"></a> <span class='hs-varid'>lazy</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span>
<a name="line-470"></a> <span class='hs-varid'>len</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toInteger</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span>
<a name="line-471"></a> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>len</span> <span class='hs-varop'><</span> <span class='hs-varid'>n'</span>
<a name="line-472"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-varop'>.</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>n'</span> <span class='hs-comment'>-</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-473"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>yield</span> <span class='hs-conid'>()</span> <span class='hs-layout'>(</span><span class='hs-varid'>toChunks</span> <span class='hs-layout'>(</span><span class='hs-varid'>acc</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-474"></a> <span class='hs-varid'>loop</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>throwError</span> <span class='hs-layout'>(</span><span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>ErrorCall</span> <span class='hs-str'>"require: Unexpected EOF"</span><span class='hs-layout'>)</span>
<a name="line-475"></a>
<a name="line-476"></a>
<a name="line-477"></a><span class='hs-comment'>-- | @'isolate' n@ reads at most /n/ characters from the stream, and passes</span>
<a name="line-478"></a><span class='hs-comment'>-- them to its iteratee. If the iteratee finishes early, characters continue</span>
<a name="line-479"></a><span class='hs-comment'>-- to be consumed from the outer stream until /n/ have been consumed.</span>
<a name="line-480"></a><span class='hs-comment'>--</span>
<a name="line-481"></a><span class='hs-comment'>-- Since: 0.4.5</span>
<a name="line-482"></a>
<a name="line-483"></a><a name="isolate"></a><span class='hs-definition'>isolate</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Integer</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-484"></a><span class='hs-definition'>isolate</span> <span class='hs-varid'>n</span> <span class='hs-varid'>step</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'><=</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varid'>step</span>
<a name="line-485"></a><span class='hs-definition'>isolate</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-conid'>Continue</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>loop</span> <span class='hs-keyword'>where</span>
<a name="line-486"></a> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>loop</span>
<a name="line-487"></a> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>iter</span> <span class='hs-keyword'>where</span>
<a name="line-488"></a> <span class='hs-varid'>lazy</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>fromChunks</span> <span class='hs-varid'>xs</span>
<a name="line-489"></a> <span class='hs-varid'>len</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>toInteger</span> <span class='hs-layout'>(</span><span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>lazy</span><span class='hs-layout'>)</span>
<a name="line-490"></a>
<a name="line-491"></a> <span class='hs-varid'>iter</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>len</span> <span class='hs-varop'><=</span> <span class='hs-varid'>n</span>
<a name="line-492"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span> <span class='hs-varid'>isolate</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-comment'>-</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span>
<a name="line-493"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>let</span>
<a name="line-494"></a> <span class='hs-layout'>(</span><span class='hs-varid'>s1</span><span class='hs-layout'>,</span> <span class='hs-varid'>s2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromInteger</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-varid'>lazy</span>
<a name="line-495"></a> <span class='hs-keyword'>in</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>toChunks</span> <span class='hs-varid'>s1</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>step</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>yield</span> <span class='hs-varid'>step</span> <span class='hs-layout'>(</span><span class='hs-varid'>toChunks</span> <span class='hs-varid'>s2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-496"></a> <span class='hs-varid'>loop</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>k</span> <span class='hs-conid'>EOF</span> <span class='hs-varop'>>>==</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>step</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>yield</span> <span class='hs-varid'>step</span> <span class='hs-conid'>EOF</span><span class='hs-layout'>)</span>
<a name="line-497"></a><span class='hs-definition'>isolate</span> <span class='hs-varid'>n</span> <span class='hs-varid'>step</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>drop</span> <span class='hs-varid'>n</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-varid'>step</span>
<a name="line-498"></a>
<a name="line-499"></a>
<a name="line-500"></a><span class='hs-comment'>-- | Split on characters satisfying a given predicate.</span>
<a name="line-501"></a><span class='hs-comment'>--</span>
<a name="line-502"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-503"></a>
<a name="line-504"></a><a name="splitWhen"></a><span class='hs-definition'>splitWhen</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</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'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-505"></a><span class='hs-definition'>splitWhen</span> <span class='hs-varid'>p</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-keyword'>where</span>
<a name="line-506"></a> <span class='hs-varid'>loop</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkDone</span> <span class='hs-varid'>step</span>
<a name="line-507"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>isEOF</span> <span class='hs-varop'>>>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>eof</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>eof</span>
<a name="line-508"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>Continue</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-509"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-510"></a> <span class='hs-varid'>lazy</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>takeWhile</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span> <span class='hs-varop'>.</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span>
<a name="line-511"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>textToStrict</span> <span class='hs-varid'>lazy</span>
<a name="line-512"></a> <span class='hs-varid'>eof</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>isEOF</span>
<a name="line-513"></a> <span class='hs-varid'>drop</span> <span class='hs-num'>1</span>
<a name="line-514"></a> <span class='hs-keyword'>if</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>lazy</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>eof</span>
<a name="line-515"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>Continue</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-516"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>text</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span> <span class='hs-varid'>loop</span>
<a name="line-517"></a>
<a name="line-518"></a>
<a name="line-519"></a><span class='hs-comment'>-- | @'lines' = 'splitWhen' (== '\n')@</span>
<a name="line-520"></a><span class='hs-comment'>--</span>
<a name="line-521"></a><span class='hs-comment'>-- Since: 0.4.8</span>
<a name="line-522"></a>
<a name="line-523"></a><a name="lines"></a><span class='hs-definition'>lines</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-524"></a><span class='hs-definition'>lines</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>splitWhen</span> <span class='hs-layout'>(</span><span class='hs-varop'>==</span> <span class='hs-chr'>'\n'</span><span class='hs-layout'>)</span>
<a name="line-525"></a>
<a name="line-526"></a>
<a name="line-527"></a>
<a name="line-528"></a><span class='hs-comment'>-- | Read lines of text from the handle, and stream them to an 'Iteratee'.</span>
<a name="line-529"></a><span class='hs-comment'>-- If an exception occurs during file IO, enumeration will stop and 'Error'</span>
<a name="line-530"></a><span class='hs-comment'>-- will be returned. Exceptions from the iteratee are not caught.</span>
<a name="line-531"></a><span class='hs-comment'>--</span>
<a name="line-532"></a><span class='hs-comment'>-- The handle should be opened with an appropriate text encoding, and</span>
<a name="line-533"></a><span class='hs-comment'>-- in 'IO.ReadMode' or 'IO.ReadWriteMode'.</span>
<a name="line-534"></a><span class='hs-comment'>--</span>
<a name="line-535"></a><span class='hs-comment'>-- Since: 0.2</span>
<a name="line-536"></a>
<a name="line-537"></a><a name="enumHandle"></a><span class='hs-definition'>enumHandle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadIO</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Handle</span>
<a name="line-538"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-539"></a><span class='hs-definition'>enumHandle</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkContinue0</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>loop</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-540"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>getText</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-varid'>catch</span>
<a name="line-541"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>TIO</span><span class='hs-varop'>.</span><span class='hs-varid'>hGetLine</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span>
<a name="line-542"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>err</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>if</span> <span class='hs-varid'>isEOFError</span> <span class='hs-varid'>err</span>
<a name="line-543"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span>
<a name="line-544"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-varid'>throwIO</span> <span class='hs-varid'>err</span><span class='hs-layout'>)</span>
<a name="line-545"></a>
<a name="line-546"></a> <span class='hs-varid'>maybeText</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>tryIO</span> <span class='hs-varid'>getText</span>
<a name="line-547"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>maybeText</span> <span class='hs-keyword'>of</span>
<a name="line-548"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>continue</span> <span class='hs-varid'>k</span>
<a name="line-549"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>text</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span> <span class='hs-varid'>loop</span>
<a name="line-550"></a>
<a name="line-551"></a>
<a name="line-552"></a>
<a name="line-553"></a><span class='hs-comment'>-- | Opens a file path in text mode, and passes the handle to 'enumHandle'.</span>
<a name="line-554"></a><span class='hs-comment'>-- The file will be closed when the 'Iteratee' finishes.</span>
<a name="line-555"></a><span class='hs-comment'>--</span>
<a name="line-556"></a><span class='hs-comment'>-- Since: 0.2</span>
<a name="line-557"></a>
<a name="line-558"></a><a name="enumFile"></a><span class='hs-definition'>enumFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumerator</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>b</span>
<a name="line-559"></a><span class='hs-definition'>enumFile</span> <span class='hs-varid'>path</span> <span class='hs-varid'>step</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-560"></a> <span class='hs-varid'>h</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>tryIO</span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-varid'>openFile</span> <span class='hs-varid'>path</span> <span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadMode</span><span class='hs-layout'>)</span>
<a name="line-561"></a> <span class='hs-conid'>Iteratee</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-varid'>finally</span>
<a name="line-562"></a> <span class='hs-layout'>(</span><span class='hs-varid'>runIteratee</span> <span class='hs-layout'>(</span><span class='hs-varid'>enumHandle</span> <span class='hs-varid'>h</span> <span class='hs-varid'>step</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-563"></a> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-varid'>hClose</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span>
<a name="line-564"></a>
<a name="line-565"></a>
<a name="line-566"></a><span class='hs-comment'>-- | Read text from a stream and write it to a handle. If an exception</span>
<a name="line-567"></a><span class='hs-comment'>-- occurs during file IO, enumeration will stop and 'Error' will be</span>
<a name="line-568"></a><span class='hs-comment'>-- returned.</span>
<a name="line-569"></a><span class='hs-comment'>--</span>
<a name="line-570"></a><span class='hs-comment'>-- The handle should be opened with an appropriate text encoding, and</span>
<a name="line-571"></a><span class='hs-comment'>-- in 'IO.WriteMode' or 'IO.ReadWriteMode'.</span>
<a name="line-572"></a><span class='hs-comment'>--</span>
<a name="line-573"></a><span class='hs-comment'>-- Since: 0.2</span>
<a name="line-574"></a>
<a name="line-575"></a><a name="iterHandle"></a><span class='hs-definition'>iterHandle</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MonadIO</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Handle</span>
<a name="line-576"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Iteratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-conid'>()</span>
<a name="line-577"></a><span class='hs-definition'>iterHandle</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>step</span> <span class='hs-keyword'>where</span>
<a name="line-578"></a> <span class='hs-varid'>step</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-conid'>()</span> <span class='hs-conid'>EOF</span>
<a name="line-579"></a> <span class='hs-varid'>step</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-varid'>step</span>
<a name="line-580"></a> <span class='hs-varid'>step</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>chunks</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-581"></a> <span class='hs-varid'>tryIO</span> <span class='hs-layout'>(</span><span class='hs-conid'>CM</span><span class='hs-varop'>.</span><span class='hs-varid'>mapM_</span> <span class='hs-layout'>(</span><span class='hs-conid'>TIO</span><span class='hs-varop'>.</span><span class='hs-varid'>hPutStr</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-varid'>chunks</span><span class='hs-layout'>)</span>
<a name="line-582"></a> <span class='hs-varid'>continue</span> <span class='hs-varid'>step</span>
<a name="line-583"></a>
<a name="line-584"></a>
<a name="line-585"></a><a name="Codec"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Codec</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span>
<a name="line-586"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>codecName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-587"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>codecEncode</span>
<a name="line-588"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-589"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</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-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>SomeException</span><span class='hs-layout'>,</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-590"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>codecDecode</span>
<a name="line-591"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-592"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Either</span>
<a name="line-593"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>SomeException</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-594"></a> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-595"></a> <span class='hs-layout'>}</span>
<a name="line-596"></a>
<a name="line-597"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>Codec</span> <span class='hs-keyword'>where</span>
<a name="line-598"></a> <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>d</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showParen</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span> <span class='hs-varop'>></span> <span class='hs-num'>10</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-599"></a> <span class='hs-varid'>showString</span> <span class='hs-str'>"Codec "</span> <span class='hs-varop'>.</span> <span class='hs-varid'>shows</span> <span class='hs-layout'>(</span><span class='hs-varid'>codecName</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-600"></a>
<a name="line-601"></a>
<a name="line-602"></a><span class='hs-comment'>-- | Convert text into bytes, using the provided codec. If the codec is</span>
<a name="line-603"></a><span class='hs-comment'>-- not capable of representing an input character, an error will be thrown.</span>
<a name="line-604"></a><span class='hs-comment'>--</span>
<a name="line-605"></a><span class='hs-comment'>-- Since: 0.2</span>
<a name="line-606"></a>
<a name="line-607"></a><a name="encode"></a><span class='hs-definition'>encode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Codec</span>
<a name="line-608"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-609"></a><span class='hs-definition'>encode</span> <span class='hs-varid'>codec</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkDone</span> <span class='hs-layout'>(</span><span class='hs-varid'>continue</span> <span class='hs-varop'>.</span> <span class='hs-varid'>step</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-610"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>k</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>Continue</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-611"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>k</span> <span class='hs-varid'>xs</span>
<a name="line-612"></a>
<a name="line-613"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>k</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>step</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-614"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-615"></a> <span class='hs-layout'>(</span><span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>codecEncode</span> <span class='hs-varid'>codec</span> <span class='hs-varid'>x</span>
<a name="line-616"></a> <span class='hs-varid'>extraChunks</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Chunks</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>extra</span> <span class='hs-keyword'>of</span>
<a name="line-617"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>xs</span>
<a name="line-618"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>text</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>text</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span>
<a name="line-619"></a>
<a name="line-620"></a> <span class='hs-varid'>checkError</span> <span class='hs-varid'>k'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>extra</span> <span class='hs-keyword'>of</span>
<a name="line-621"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varid'>k'</span> <span class='hs-varid'>xs</span>
<a name="line-622"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>exc</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>throwError</span> <span class='hs-varid'>exc</span>
<a name="line-623"></a>
<a name="line-624"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>bytes</span>
<a name="line-625"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>checkError</span> <span class='hs-varid'>k</span>
<a name="line-626"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>bytes</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span>
<a name="line-627"></a> <span class='hs-varid'>checkDoneEx</span> <span class='hs-varid'>extraChunks</span> <span class='hs-varid'>checkError</span>
<a name="line-628"></a>
<a name="line-629"></a>
<a name="line-630"></a><span class='hs-comment'>-- | Convert bytes into text, using the provided codec. If the codec is</span>
<a name="line-631"></a><span class='hs-comment'>-- not capable of decoding an input byte sequence, an error will be thrown.</span>
<a name="line-632"></a><span class='hs-comment'>--</span>
<a name="line-633"></a><span class='hs-comment'>-- Since: 0.2</span>
<a name="line-634"></a>
<a name="line-635"></a><a name="decode"></a><span class='hs-definition'>decode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Monad</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Codec</span>
<a name="line-636"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Enumeratee</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-varid'>m</span> <span class='hs-varid'>b</span>
<a name="line-637"></a><span class='hs-definition'>decode</span> <span class='hs-varid'>codec</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>checkDone</span> <span class='hs-layout'>(</span><span class='hs-varid'>continue</span> <span class='hs-varop'>.</span> <span class='hs-varid'>step</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-638"></a> <span class='hs-varid'>step</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>k</span> <span class='hs-conid'>EOF</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>Continue</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-conid'>EOF</span>
<a name="line-639"></a> <span class='hs-varid'>step</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>k</span> <span class='hs-varid'>xs</span>
<a name="line-640"></a>
<a name="line-641"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>k</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>continue</span> <span class='hs-layout'>(</span><span class='hs-varid'>step</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span>
<a name="line-642"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-conop'>:</span><span class='hs-varid'>xs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-643"></a> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>codecDecode</span> <span class='hs-varid'>codec</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>acc</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-644"></a> <span class='hs-varid'>extraChunks</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Chunks</span> <span class='hs-layout'>(</span><span class='hs-varid'>either</span> <span class='hs-varid'>snd</span> <span class='hs-varid'>id</span> <span class='hs-varid'>extra</span> <span class='hs-conop'>:</span> <span class='hs-varid'>xs</span><span class='hs-layout'>)</span>
<a name="line-645"></a>
<a name="line-646"></a> <span class='hs-varid'>checkError</span> <span class='hs-varid'>k'</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>extra</span> <span class='hs-keyword'>of</span>
<a name="line-647"></a> <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-varid'>exc</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>throwError</span> <span class='hs-varid'>exc</span>
<a name="line-648"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varid'>bytes</span> <span class='hs-varid'>k'</span> <span class='hs-varid'>xs</span>
<a name="line-649"></a>
<a name="line-650"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-varid'>text</span>
<a name="line-651"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>checkError</span> <span class='hs-varid'>k</span>
<a name="line-652"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>k</span> <span class='hs-layout'>(</span><span class='hs-conid'>Chunks</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>text</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <span class='hs-varop'>>>==</span>
<a name="line-653"></a> <span class='hs-varid'>checkDoneEx</span> <span class='hs-varid'>extraChunks</span> <span class='hs-varid'>checkError</span>
<a name="line-654"></a>
<a name="line-655"></a><a name="byteSplits"></a><span class='hs-definition'>byteSplits</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-656"></a> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</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-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-657"></a><span class='hs-definition'>byteSplits</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-658"></a> <span class='hs-varid'>loop</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>,</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-659"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-varid'>n</span> <span class='hs-varid'>bytes</span> <span class='hs-conop'>:</span> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-comment'>-</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-660"></a>
<a name="line-661"></a><a name="splitSlowly"></a><span class='hs-definition'>splitSlowly</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</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'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</span>
<a name="line-662"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-663"></a> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Either</span>
<a name="line-664"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>SomeException</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-665"></a> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-666"></a><span class='hs-definition'>splitSlowly</span> <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>valid</span> <span class='hs-keyword'>where</span>
<a name="line-667"></a> <span class='hs-varid'>valid</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>firstValid</span> <span class='hs-layout'>(</span><span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>map</span> <span class='hs-varid'>decFirst</span> <span class='hs-varid'>splits</span><span class='hs-layout'>)</span>
<a name="line-668"></a> <span class='hs-varid'>splits</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>byteSplits</span> <span class='hs-varid'>bytes</span>
<a name="line-669"></a> <span class='hs-varid'>firstValid</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Prelude</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-varop'>.</span> <span class='hs-varid'>catMaybes</span>
<a name="line-670"></a> <span class='hs-varid'>tryDec</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tryEvaluate</span> <span class='hs-varop'>.</span> <span class='hs-varid'>dec</span>
<a name="line-671"></a>
<a name="line-672"></a> <span class='hs-varid'>decFirst</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>tryDec</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>of</span>
<a name="line-673"></a> <span class='hs-conid'>Left</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-674"></a> <span class='hs-conid'>Right</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>tryDec</span> <span class='hs-varid'>b</span> <span class='hs-keyword'>of</span>
<a name="line-675"></a> <span class='hs-conid'>Left</span> <span class='hs-varid'>exc</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-varid'>exc</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-676"></a>
<a name="line-677"></a> <span class='hs-comment'>-- this case shouldn't occur, since splitSlowly</span>
<a name="line-678"></a> <span class='hs-comment'>-- is only called when parsing failed somewhere</span>
<a name="line-679"></a> <span class='hs-conid'>Right</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Right</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-680"></a>
<a name="line-681"></a><a name="utf8"></a><span class='hs-definition'>utf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-682"></a><span class='hs-definition'>utf8</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-683"></a> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-8"</span>
<a name="line-684"></a> <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf8</span> <span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-685"></a> <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>splitQuickly</span> <span class='hs-varid'>bytes</span> <span class='hs-keyword'>of</span>
<a name="line-686"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Right</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-687"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>splitSlowly</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf8</span> <span class='hs-varid'>bytes</span>
<a name="line-688"></a>
<a name="line-689"></a> <span class='hs-varid'>splitQuickly</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-num'>0</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>maybeDecode</span> <span class='hs-keyword'>where</span>
<a name="line-690"></a>
<a name="line-691"></a> <span class='hs-varid'>required</span> <span class='hs-varid'>x0</span>
<a name="line-692"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x0</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0x80</span> <span class='hs-varop'>==</span> <span class='hs-num'>0x00</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-693"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x0</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0xE0</span> <span class='hs-varop'>==</span> <span class='hs-num'>0xC0</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>2</span>
<a name="line-694"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x0</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0xF0</span> <span class='hs-varop'>==</span> <span class='hs-num'>0xE0</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>3</span>
<a name="line-695"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x0</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0xF8</span> <span class='hs-varop'>==</span> <span class='hs-num'>0xF0</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>4</span>
<a name="line-696"></a>
<a name="line-697"></a> <span class='hs-comment'>-- Invalid input; let Text figure it out</span>
<a name="line-698"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-699"></a>
<a name="line-700"></a> <span class='hs-varid'>maxN</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>bytes</span>
<a name="line-701"></a>
<a name="line-702"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'>==</span> <span class='hs-varid'>maxN</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf8</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-703"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-704"></a> <span class='hs-varid'>req</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>required</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>bytes</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-705"></a> <span class='hs-varid'>tooLong</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>first</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf8</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-varid'>n</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>)</span>
<a name="line-706"></a> <span class='hs-varid'>decodeMore</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-varid'>req</span>
<a name="line-707"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>req</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span>
<a name="line-708"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span>
<a name="line-709"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-varid'>req</span> <span class='hs-varop'>></span> <span class='hs-varid'>maxN</span>
<a name="line-710"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>tooLong</span>
<a name="line-711"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>decodeMore</span>
<a name="line-712"></a>
<a name="line-713"></a><a name="utf16_le"></a><span class='hs-definition'>utf16_le</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-714"></a><span class='hs-definition'>utf16_le</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-715"></a> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-16-LE"</span>
<a name="line-716"></a> <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf16LE</span> <span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-717"></a> <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>splitQuickly</span> <span class='hs-varid'>bytes</span> <span class='hs-keyword'>of</span>
<a name="line-718"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Right</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-719"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>splitSlowly</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf16LE</span> <span class='hs-varid'>bytes</span>
<a name="line-720"></a>
<a name="line-721"></a> <span class='hs-varid'>splitQuickly</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybeDecode</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-722"></a> <span class='hs-varid'>maxN</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>bytes</span>
<a name="line-723"></a>
<a name="line-724"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'>==</span> <span class='hs-varid'>maxN</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeAll</span>
<a name="line-725"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>maxN</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeTo</span> <span class='hs-varid'>n</span>
<a name="line-726"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-727"></a> <span class='hs-varid'>req</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>utf16Required</span>
<a name="line-728"></a> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>bytes</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-729"></a> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>bytes</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-730"></a> <span class='hs-varid'>decodeMore</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-varid'>req</span>
<a name="line-731"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-varid'>req</span> <span class='hs-varop'>></span> <span class='hs-varid'>maxN</span>
<a name="line-732"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>decodeTo</span> <span class='hs-varid'>n</span>
<a name="line-733"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>decodeMore</span>
<a name="line-734"></a>
<a name="line-735"></a> <span class='hs-varid'>decodeTo</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>first</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf16LE</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-varid'>n</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>)</span>
<a name="line-736"></a> <span class='hs-varid'>decodeAll</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf16LE</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-737"></a>
<a name="line-738"></a><a name="utf16_be"></a><span class='hs-definition'>utf16_be</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-739"></a><span class='hs-definition'>utf16_be</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-740"></a> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-16-BE"</span>
<a name="line-741"></a> <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf16BE</span> <span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-742"></a> <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>splitQuickly</span> <span class='hs-varid'>bytes</span> <span class='hs-keyword'>of</span>
<a name="line-743"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Right</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-744"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>splitSlowly</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf16BE</span> <span class='hs-varid'>bytes</span>
<a name="line-745"></a>
<a name="line-746"></a> <span class='hs-varid'>splitQuickly</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybeDecode</span> <span class='hs-layout'>(</span><span class='hs-varid'>loop</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-747"></a> <span class='hs-varid'>maxN</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>bytes</span>
<a name="line-748"></a>
<a name="line-749"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'>==</span> <span class='hs-varid'>maxN</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeAll</span>
<a name="line-750"></a> <span class='hs-keyglyph'>|</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>==</span> <span class='hs-varid'>maxN</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeTo</span> <span class='hs-varid'>n</span>
<a name="line-751"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-752"></a> <span class='hs-varid'>req</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>utf16Required</span>
<a name="line-753"></a> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>bytes</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-754"></a> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>index</span> <span class='hs-varid'>bytes</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span>
<a name="line-755"></a> <span class='hs-varid'>decodeMore</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>loop</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-varid'>req</span>
<a name="line-756"></a> <span class='hs-keyword'>in</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>n</span> <span class='hs-varop'>+</span> <span class='hs-varid'>req</span> <span class='hs-varop'>></span> <span class='hs-varid'>maxN</span>
<a name="line-757"></a> <span class='hs-keyword'>then</span> <span class='hs-varid'>decodeTo</span> <span class='hs-varid'>n</span>
<a name="line-758"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>decodeMore</span>
<a name="line-759"></a>
<a name="line-760"></a> <span class='hs-varid'>decodeTo</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>first</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf16BE</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-varid'>n</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>)</span>
<a name="line-761"></a> <span class='hs-varid'>decodeAll</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf16BE</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-762"></a>
<a name="line-763"></a><a name="utf16Required"></a><span class='hs-definition'>utf16Required</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span>
<a name="line-764"></a><span class='hs-definition'>utf16Required</span> <span class='hs-varid'>x0</span> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>required</span> <span class='hs-keyword'>where</span>
<a name="line-765"></a> <span class='hs-varid'>required</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>x</span> <span class='hs-varop'>>=</span> <span class='hs-num'>0xD800</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>x</span> <span class='hs-varop'><=</span> <span class='hs-num'>0xDBFF</span>
<a name="line-766"></a> <span class='hs-keyword'>then</span> <span class='hs-num'>4</span>
<a name="line-767"></a> <span class='hs-keyword'>else</span> <span class='hs-num'>2</span>
<a name="line-768"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word16</span>
<a name="line-769"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>x1</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>8</span><span class='hs-layout'>)</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>x0</span>
<a name="line-770"></a>
<a name="line-771"></a><a name="utf32_le"></a><span class='hs-definition'>utf32_le</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-772"></a><span class='hs-definition'>utf32_le</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-773"></a> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-32-LE"</span>
<a name="line-774"></a> <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf32LE</span> <span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-775"></a> <span class='hs-varid'>dec</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>utf32SplitBytes</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf32LE</span> <span class='hs-varid'>bs</span> <span class='hs-keyword'>of</span>
<a name="line-776"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Right</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-777"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>splitSlowly</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf32LE</span> <span class='hs-varid'>bs</span>
<a name="line-778"></a>
<a name="line-779"></a><a name="utf32_be"></a><span class='hs-definition'>utf32_be</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-780"></a><span class='hs-definition'>utf32_be</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-781"></a> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"UTF-32-BE"</span>
<a name="line-782"></a> <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>encodeUtf32BE</span> <span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
<a name="line-783"></a> <span class='hs-varid'>dec</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>utf32SplitBytes</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf32BE</span> <span class='hs-varid'>bs</span> <span class='hs-keyword'>of</span>
<a name="line-784"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-conid'>Right</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-785"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>splitSlowly</span> <span class='hs-conid'>TE</span><span class='hs-varop'>.</span><span class='hs-varid'>decodeUtf32BE</span> <span class='hs-varid'>bs</span>
<a name="line-786"></a>
<a name="line-787"></a><a name="utf32SplitBytes"></a><span class='hs-definition'>utf32SplitBytes</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</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'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>)</span>
<a name="line-788"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-789"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-790"></a><span class='hs-definition'>utf32SplitBytes</span> <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>split</span> <span class='hs-keyword'>where</span>
<a name="line-791"></a> <span class='hs-varid'>split</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybeDecode</span> <span class='hs-layout'>(</span><span class='hs-varid'>dec</span> <span class='hs-varid'>toDecode</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span>
<a name="line-792"></a> <span class='hs-varid'>len</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>bytes</span>
<a name="line-793"></a> <span class='hs-varid'>lenExtra</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>mod</span> <span class='hs-varid'>len</span> <span class='hs-num'>4</span>
<a name="line-794"></a>
<a name="line-795"></a> <span class='hs-varid'>lenToDecode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>len</span> <span class='hs-comment'>-</span> <span class='hs-varid'>lenExtra</span>
<a name="line-796"></a> <span class='hs-layout'>(</span><span class='hs-varid'>toDecode</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>lenExtra</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span>
<a name="line-797"></a> <span class='hs-keyword'>then</span> <span class='hs-layout'>(</span><span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-798"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>splitAt</span> <span class='hs-varid'>lenToDecode</span> <span class='hs-varid'>bytes</span>
<a name="line-799"></a>
<a name="line-800"></a><a name="ascii"></a><span class='hs-definition'>ascii</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-801"></a><span class='hs-definition'>ascii</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-802"></a> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"ASCII"</span>
<a name="line-803"></a> <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-804"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>safe</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tSpanBy</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ord</span> <span class='hs-varid'>c</span> <span class='hs-varop'><=</span> <span class='hs-num'>0x7F</span><span class='hs-layout'>)</span> <span class='hs-varid'>text</span>
<a name="line-805"></a> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-keyword'>safe</span><span class='hs-layout'>)</span>
<a name="line-806"></a> <span class='hs-varid'>extra</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-keyword'>unsafe</span>
<a name="line-807"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span>
<a name="line-808"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>illegalEnc</span> <span class='hs-varid'>name</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span>
<a name="line-809"></a>
<a name="line-810"></a> <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>text</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-811"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>safe</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</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-varid'>span</span> <span class='hs-layout'>(</span><span class='hs-varop'><=</span> <span class='hs-num'>0x7F</span><span class='hs-layout'>)</span> <span class='hs-varid'>bytes</span>
<a name="line-812"></a> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-keyword'>safe</span><span class='hs-layout'>)</span>
<a name="line-813"></a> <span class='hs-varid'>extra</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-keyword'>unsafe</span>
<a name="line-814"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-815"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>Left</span> <span class='hs-layout'>(</span><span class='hs-varid'>illegalDec</span> <span class='hs-varid'>name</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span>
<a name="line-816"></a>
<a name="line-817"></a><a name="iso8859_1"></a><span class='hs-definition'>iso8859_1</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Codec</span>
<a name="line-818"></a><span class='hs-definition'>iso8859_1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Codec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>enc</span> <span class='hs-varid'>dec</span> <span class='hs-keyword'>where</span>
<a name="line-819"></a> <span class='hs-varid'>name</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-str'>"ISO-8859-1"</span>
<a name="line-820"></a> <span class='hs-varid'>enc</span> <span class='hs-varid'>text</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>bytes</span><span class='hs-layout'>,</span> <span class='hs-varid'>extra</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-821"></a> <span class='hs-layout'>(</span><span class='hs-keyword'>safe</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>tSpanBy</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ord</span> <span class='hs-varid'>c</span> <span class='hs-varop'><=</span> <span class='hs-num'>0xFF</span><span class='hs-layout'>)</span> <span class='hs-varid'>text</span>
<a name="line-822"></a> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-keyword'>safe</span><span class='hs-layout'>)</span>
<a name="line-823"></a> <span class='hs-varid'>extra</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>null</span> <span class='hs-keyword'>unsafe</span>
<a name="line-824"></a> <span class='hs-keyword'>then</span> <span class='hs-conid'>Nothing</span>
<a name="line-825"></a> <span class='hs-keyword'>else</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>illegalEnc</span> <span class='hs-varid'>name</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>head</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-keyword'>unsafe</span><span class='hs-layout'>)</span>
<a name="line-826"></a>
<a name="line-827"></a> <span class='hs-varid'>dec</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-layout'>(</span><span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>unpack</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Right</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span><span class='hs-layout'>)</span>
<a name="line-828"></a>
<a name="line-829"></a><a name="illegalEnc"></a><span class='hs-definition'>illegalEnc</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Char</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>SomeException</span>
<a name="line-830"></a><span class='hs-definition'>illegalEnc</span> <span class='hs-varid'>name</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-varid'>toException</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>ErrorCall</span> <span class='hs-varop'>$</span>
<a name="line-831"></a> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-str'>"Codec "</span>
<a name="line-832"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>show</span> <span class='hs-varid'>name</span>
<a name="line-833"></a> <span class='hs-layout'>,</span> <span class='hs-str'>" can't encode character "</span>
<a name="line-834"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>reprChar</span> <span class='hs-varid'>c</span>
<a name="line-835"></a> <span class='hs-keyglyph'>]</span>
<a name="line-836"></a>
<a name="line-837"></a><a name="illegalDec"></a><span class='hs-definition'>illegalDec</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>SomeException</span>
<a name="line-838"></a><span class='hs-definition'>illegalDec</span> <span class='hs-varid'>name</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-varid'>toException</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>ErrorCall</span> <span class='hs-varop'>$</span>
<a name="line-839"></a> <span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-str'>"Codec "</span>
<a name="line-840"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>show</span> <span class='hs-varid'>name</span>
<a name="line-841"></a> <span class='hs-layout'>,</span> <span class='hs-str'>" can't decode byte "</span>
<a name="line-842"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>reprWord</span> <span class='hs-varid'>w</span>
<a name="line-843"></a> <span class='hs-keyglyph'>]</span>
<a name="line-844"></a>
<a name="line-845"></a><a name="tryEvaluate"></a><span class='hs-definition'>tryEvaluate</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-conid'>SomeException</span> <span class='hs-varid'>a</span>
<a name="line-846"></a><span class='hs-definition'>tryEvaluate</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafePerformIO</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-varid'>try</span> <span class='hs-varop'>.</span> <span class='hs-conid'>Exc</span><span class='hs-varop'>.</span><span class='hs-varid'>evaluate</span>
<a name="line-847"></a>
<a name="line-848"></a><a name="maybeDecode"></a><span class='hs-definition'>maybeDecode</span><span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-849"></a><span class='hs-definition'>maybeDecode</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>tryEvaluate</span> <span class='hs-varid'>a</span> <span class='hs-keyword'>of</span>
<a name="line-850"></a> <span class='hs-conid'>Left</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Nothing</span>
<a name="line-851"></a> <span class='hs-conid'>Right</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-852"></a>
<a name="line-853"></a>
<a name="line-854"></a><a name="toChunks"></a><span class='hs-definition'>toChunks</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stream</span> <span class='hs-conid'>T</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span>
<a name="line-855"></a><span class='hs-definition'>toChunks</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Chunks</span> <span class='hs-varop'>.</span> <span class='hs-conid'>TL</span><span class='hs-varop'>.</span><span class='hs-varid'>toChunks</span>
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distrib
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Fedora
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x86_64
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