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<title>Data/Text/Encoding/Fusion.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE BangPatterns, CPP, Rank2Types #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-- |</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : Data.Text.Encoding.Fusion</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) Tom Harper 2008-2009,</span>
<a name="line-6"></a><span class='hs-comment'>-- (c) Bryan O'Sullivan 2009,</span>
<a name="line-7"></a><span class='hs-comment'>-- (c) Duncan Coutts 2009</span>
<a name="line-8"></a><span class='hs-comment'>--</span>
<a name="line-9"></a><span class='hs-comment'>-- License : BSD-style</span>
<a name="line-10"></a><span class='hs-comment'>-- Maintainer : bos@serpentine.com, rtomharper@googlemail.com,</span>
<a name="line-11"></a><span class='hs-comment'>-- duncan@haskell.org</span>
<a name="line-12"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-13"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-14"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><span class='hs-comment'>-- Fusible 'Stream'-oriented functions for converting between 'Text'</span>
<a name="line-16"></a><span class='hs-comment'>-- and several common encodings.</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-keyword'>module</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-varop'>.</span><span class='hs-conid'>Fusion</span>
<a name="line-19"></a> <span class='hs-layout'>(</span>
<a name="line-20"></a> <span class='hs-comment'>-- * Streaming</span>
<a name="line-21"></a> <span class='hs-varid'>streamASCII</span>
<a name="line-22"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>streamUtf8</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>streamUtf16LE</span>
<a name="line-24"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>streamUtf16BE</span>
<a name="line-25"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>streamUtf32LE</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>streamUtf32BE</span>
<a name="line-27"></a>
<a name="line-28"></a> <span class='hs-comment'>-- * Unstreaming</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>unstream</span>
<a name="line-30"></a>
<a name="line-31"></a> <span class='hs-layout'>,</span> <span class='hs-keyword'>module</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-varop'>.</span><span class='hs-conid'>Fusion</span><span class='hs-varop'>.</span><span class='hs-conid'>Common</span>
<a name="line-32"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-33"></a>
<a name="line-34"></a><span class='hs-cpp'>#if defined(ASSERTS)</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span> <span class='hs-layout'>(</span><span class='hs-varid'>assert</span><span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-cpp'>#endif</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>mallocByteString</span><span class='hs-layout'>,</span> <span class='hs-varid'>memcpy</span><span class='hs-layout'>)</span>
<a name="line-38"></a><span class='hs-keyword'>import</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'>Fusion</span> <span class='hs-layout'>(</span><span class='hs-conid'>Step</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Stream</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-39"></a><span class='hs-keyword'>import</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'>Fusion</span><span class='hs-varop'>.</span><span class='hs-conid'>Size</span>
<a name="line-40"></a><span class='hs-keyword'>import</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-varop'>.</span><span class='hs-conid'>Error</span>
<a name="line-41"></a><span class='hs-keyword'>import</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-varop'>.</span><span class='hs-conid'>Fusion</span><span class='hs-varop'>.</span><span class='hs-conid'>Common</span>
<a name="line-42"></a><span class='hs-keyword'>import</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'>UnsafeChar</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeChr</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafeChr8</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafeChr32</span><span class='hs-layout'>)</span>
<a name="line-43"></a><span class='hs-keyword'>import</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'>UnsafeShift</span> <span class='hs-layout'>(</span><span class='hs-varid'>shiftL</span><span class='hs-layout'>,</span> <span class='hs-varid'>shiftR</span><span class='hs-layout'>)</span>
<a name="line-44"></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> <span class='hs-conid'>Word32</span><span class='hs-layout'>)</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-layout'>(</span><span class='hs-varid'>withForeignPtr</span><span class='hs-layout'>,</span> <span class='hs-conid'>ForeignPtr</span><span class='hs-layout'>)</span>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Storable</span> <span class='hs-layout'>(</span><span class='hs-varid'>pokeByteOff</span><span class='hs-layout'>)</span>
<a name="line-47"></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-48"></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-49"></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'>Unsafe</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-50"></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-varop'>.</span><span class='hs-conid'>Utf8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>U8</span>
<a name="line-51"></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-varop'>.</span><span class='hs-conid'>Utf16</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>U16</span>
<a name="line-52"></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-varop'>.</span><span class='hs-conid'>Utf32</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>U32</span>
<a name="line-53"></a>
<a name="line-54"></a><a name="streamASCII"></a><span class='hs-definition'>streamASCII</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stream</span> <span class='hs-conid'>Char</span>
<a name="line-55"></a><span class='hs-definition'>streamASCII</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stream</span> <span class='hs-varid'>next</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>maxSize</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-56"></a> <span class='hs-keyword'>where</span>
<a name="line-57"></a> <span class='hs-varid'>l</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'>bs</span>
<a name="line-58"></a> <span class='hs-comment'>{-# INLINE next #-}</span>
<a name="line-59"></a> <span class='hs-varid'>next</span> <span class='hs-varid'>i</span>
<a name="line-60"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Done</span>
<a name="line-61"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeChr8</span> <span class='hs-varid'>x1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-62"></a> <span class='hs-keyword'>where</span>
<a name="line-63"></a> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>bs</span> <span class='hs-varid'>i</span>
<a name="line-64"></a><span class='hs-comment'>{-# INLINE [0] streamASCII #-}</span>
<a name="line-65"></a>
<a name="line-66"></a><a name="streamUtf8"></a><span class='hs-comment'>-- | /O(n)/ Convert a 'ByteString' into a 'Stream Char', using UTF-8</span>
<a name="line-67"></a><span class='hs-comment'>-- encoding.</span>
<a name="line-68"></a><span class='hs-definition'>streamUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stream</span> <span class='hs-conid'>Char</span>
<a name="line-69"></a><span class='hs-definition'>streamUtf8</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stream</span> <span class='hs-varid'>next</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>maxSize</span> <span class='hs-varid'>l</span><span class='hs-layout'>)</span>
<a name="line-70"></a> <span class='hs-keyword'>where</span>
<a name="line-71"></a> <span class='hs-varid'>l</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'>bs</span>
<a name="line-72"></a> <span class='hs-varid'>next</span> <span class='hs-varid'>i</span>
<a name="line-73"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Done</span>
<a name="line-74"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>U8</span><span class='hs-varop'>.</span><span class='hs-varid'>validate1</span> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeChr8</span> <span class='hs-varid'>x1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-75"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U8</span><span class='hs-varop'>.</span><span class='hs-varid'>validate2</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>U8</span><span class='hs-varop'>.</span><span class='hs-varid'>chr2</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-76"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>2</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U8</span><span class='hs-varop'>.</span><span class='hs-varid'>validate3</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span> <span class='hs-varid'>x3</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>U8</span><span class='hs-varop'>.</span><span class='hs-varid'>chr3</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span> <span class='hs-varid'>x3</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>3</span><span class='hs-layout'>)</span>
<a name="line-77"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>3</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U8</span><span class='hs-varop'>.</span><span class='hs-varid'>validate4</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span> <span class='hs-varid'>x3</span> <span class='hs-varid'>x4</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>U8</span><span class='hs-varop'>.</span><span class='hs-varid'>chr4</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span> <span class='hs-varid'>x3</span> <span class='hs-varid'>x4</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>4</span><span class='hs-layout'>)</span>
<a name="line-78"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeError</span> <span class='hs-str'>"streamUtf8"</span> <span class='hs-str'>"UTF-8"</span> <span class='hs-varid'>onErr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>x1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-79"></a> <span class='hs-keyword'>where</span>
<a name="line-80"></a> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>i</span>
<a name="line-81"></a> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-82"></a> <span class='hs-varid'>x3</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-83"></a> <span class='hs-varid'>x4</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>3</span><span class='hs-layout'>)</span>
<a name="line-84"></a> <span class='hs-varid'>idx</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>bs</span>
<a name="line-85"></a><span class='hs-comment'>{-# INLINE [0] streamUtf8 #-}</span>
<a name="line-86"></a>
<a name="line-87"></a><a name="streamUtf16LE"></a><span class='hs-comment'>-- | /O(n)/ Convert a 'ByteString' into a 'Stream Char', using little</span>
<a name="line-88"></a><span class='hs-comment'>-- endian UTF-16 encoding.</span>
<a name="line-89"></a><span class='hs-definition'>streamUtf16LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stream</span> <span class='hs-conid'>Char</span>
<a name="line-90"></a><span class='hs-definition'>streamUtf16LE</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stream</span> <span class='hs-varid'>next</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>maxSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-91"></a> <span class='hs-keyword'>where</span>
<a name="line-92"></a> <span class='hs-varid'>l</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'>bs</span>
<a name="line-93"></a> <span class='hs-comment'>{-# INLINE next #-}</span>
<a name="line-94"></a> <span class='hs-varid'>next</span> <span class='hs-varid'>i</span>
<a name="line-95"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Done</span>
<a name="line-96"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U16</span><span class='hs-varop'>.</span><span class='hs-varid'>validate1</span> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeChr</span> <span class='hs-varid'>x1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-97"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>3</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U16</span><span class='hs-varop'>.</span><span class='hs-varid'>validate2</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>U16</span><span class='hs-varop'>.</span><span class='hs-varid'>chr2</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>4</span><span class='hs-layout'>)</span>
<a name="line-98"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeError</span> <span class='hs-str'>"streamUtf16LE"</span> <span class='hs-str'>"UTF-16LE"</span> <span class='hs-varid'>onErr</span> <span class='hs-conid'>Nothing</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-99"></a> <span class='hs-keyword'>where</span>
<a name="line-100"></a> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>8</span><span class='hs-layout'>)</span>
<a name="line-101"></a> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-layout'>(</span><span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>3</span><span class='hs-layout'>)</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>8</span><span class='hs-layout'>)</span>
<a name="line-102"></a> <span class='hs-varid'>idx</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word16</span>
<a name="line-103"></a><span class='hs-comment'>{-# INLINE [0] streamUtf16LE #-}</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="streamUtf16BE"></a><span class='hs-comment'>-- | /O(n)/ Convert a 'ByteString' into a 'Stream Char', using big</span>
<a name="line-106"></a><span class='hs-comment'>-- endian UTF-16 encoding.</span>
<a name="line-107"></a><span class='hs-definition'>streamUtf16BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stream</span> <span class='hs-conid'>Char</span>
<a name="line-108"></a><span class='hs-definition'>streamUtf16BE</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stream</span> <span class='hs-varid'>next</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>maxSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-109"></a> <span class='hs-keyword'>where</span>
<a name="line-110"></a> <span class='hs-varid'>l</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'>bs</span>
<a name="line-111"></a> <span class='hs-comment'>{-# INLINE next #-}</span>
<a name="line-112"></a> <span class='hs-varid'>next</span> <span class='hs-varid'>i</span>
<a name="line-113"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Done</span>
<a name="line-114"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U16</span><span class='hs-varop'>.</span><span class='hs-varid'>validate1</span> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeChr</span> <span class='hs-varid'>x1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-115"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>3</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U16</span><span class='hs-varop'>.</span><span class='hs-varid'>validate2</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-conid'>U16</span><span class='hs-varop'>.</span><span class='hs-varid'>chr2</span> <span class='hs-varid'>x1</span> <span class='hs-varid'>x2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>4</span><span class='hs-layout'>)</span>
<a name="line-116"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeError</span> <span class='hs-str'>"streamUtf16BE"</span> <span class='hs-str'>"UTF-16BE"</span> <span class='hs-varid'>onErr</span> <span class='hs-conid'>Nothing</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-keyword'>where</span>
<a name="line-118"></a> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>idx</span> <span class='hs-varid'>i</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'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-119"></a> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>2</span><span class='hs-layout'>)</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'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>3</span><span class='hs-layout'>)</span>
<a name="line-120"></a> <span class='hs-varid'>idx</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word16</span>
<a name="line-121"></a><span class='hs-comment'>{-# INLINE [0] streamUtf16BE #-}</span>
<a name="line-122"></a>
<a name="line-123"></a><a name="streamUtf32BE"></a><span class='hs-comment'>-- | /O(n)/ Convert a 'ByteString' into a 'Stream Char', using big</span>
<a name="line-124"></a><span class='hs-comment'>-- endian UTF-32 encoding.</span>
<a name="line-125"></a><span class='hs-definition'>streamUtf32BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stream</span> <span class='hs-conid'>Char</span>
<a name="line-126"></a><span class='hs-definition'>streamUtf32BE</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stream</span> <span class='hs-varid'>next</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>maxSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-127"></a> <span class='hs-keyword'>where</span>
<a name="line-128"></a> <span class='hs-varid'>l</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'>bs</span>
<a name="line-129"></a> <span class='hs-comment'>{-# INLINE next #-}</span>
<a name="line-130"></a> <span class='hs-varid'>next</span> <span class='hs-varid'>i</span>
<a name="line-131"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Done</span>
<a name="line-132"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>3</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U32</span><span class='hs-varop'>.</span><span class='hs-varid'>validate</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeChr32</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>4</span><span class='hs-layout'>)</span>
<a name="line-133"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeError</span> <span class='hs-str'>"streamUtf32BE"</span> <span class='hs-str'>"UTF-32BE"</span> <span class='hs-varid'>onErr</span> <span class='hs-conid'>Nothing</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-134"></a> <span class='hs-keyword'>where</span>
<a name="line-135"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>shiftL</span> <span class='hs-varid'>x1</span> <span class='hs-num'>24</span> <span class='hs-varop'>+</span> <span class='hs-varid'>shiftL</span> <span class='hs-varid'>x2</span> <span class='hs-num'>16</span> <span class='hs-varop'>+</span> <span class='hs-varid'>shiftL</span> <span class='hs-varid'>x3</span> <span class='hs-num'>8</span> <span class='hs-varop'>+</span> <span class='hs-varid'>x4</span>
<a name="line-136"></a> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>i</span>
<a name="line-137"></a> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-138"></a> <span class='hs-varid'>x3</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-139"></a> <span class='hs-varid'>x4</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>3</span><span class='hs-layout'>)</span>
<a name="line-140"></a> <span class='hs-varid'>idx</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word32</span>
<a name="line-141"></a><span class='hs-comment'>{-# INLINE [0] streamUtf32BE #-}</span>
<a name="line-142"></a>
<a name="line-143"></a><a name="streamUtf32LE"></a><span class='hs-comment'>-- | /O(n)/ Convert a 'ByteString' into a 'Stream Char', using little</span>
<a name="line-144"></a><span class='hs-comment'>-- endian UTF-32 encoding.</span>
<a name="line-145"></a><span class='hs-definition'>streamUtf32LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Stream</span> <span class='hs-conid'>Char</span>
<a name="line-146"></a><span class='hs-definition'>streamUtf32LE</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Stream</span> <span class='hs-varid'>next</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>maxSize</span> <span class='hs-layout'>(</span><span class='hs-varid'>l</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-147"></a> <span class='hs-keyword'>where</span>
<a name="line-148"></a> <span class='hs-varid'>l</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'>bs</span>
<a name="line-149"></a> <span class='hs-comment'>{-# INLINE next #-}</span>
<a name="line-150"></a> <span class='hs-varid'>next</span> <span class='hs-varid'>i</span>
<a name="line-151"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>l</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Done</span>
<a name="line-152"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>3</span> <span class='hs-varop'><</span> <span class='hs-varid'>l</span> <span class='hs-varop'>&&</span> <span class='hs-conid'>U32</span><span class='hs-varop'>.</span><span class='hs-varid'>validate</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Yield</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeChr32</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>4</span><span class='hs-layout'>)</span>
<a name="line-153"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeError</span> <span class='hs-str'>"streamUtf32LE"</span> <span class='hs-str'>"UTF-32LE"</span> <span class='hs-varid'>onErr</span> <span class='hs-conid'>Nothing</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-154"></a> <span class='hs-keyword'>where</span>
<a name="line-155"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>shiftL</span> <span class='hs-varid'>x4</span> <span class='hs-num'>24</span> <span class='hs-varop'>+</span> <span class='hs-varid'>shiftL</span> <span class='hs-varid'>x3</span> <span class='hs-num'>16</span> <span class='hs-varop'>+</span> <span class='hs-varid'>shiftL</span> <span class='hs-varid'>x2</span> <span class='hs-num'>8</span> <span class='hs-varop'>+</span> <span class='hs-varid'>x1</span>
<a name="line-156"></a> <span class='hs-varid'>x1</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-varid'>i</span>
<a name="line-157"></a> <span class='hs-varid'>x2</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-varop'>$</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span>
<a name="line-158"></a> <span class='hs-varid'>x3</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-varop'>$</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>2</span>
<a name="line-159"></a> <span class='hs-varid'>x4</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>idx</span> <span class='hs-varop'>$</span> <span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>3</span>
<a name="line-160"></a> <span class='hs-varid'>idx</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word32</span>
<a name="line-161"></a><span class='hs-comment'>{-# INLINE [0] streamUtf32LE #-}</span>
<a name="line-162"></a>
<a name="line-163"></a><a name="unstream"></a><span class='hs-comment'>-- | /O(n)/ Convert a 'Stream' 'Word8' to a 'ByteString'.</span>
<a name="line-164"></a><span class='hs-definition'>unstream</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Stream</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span>
<a name="line-165"></a><span class='hs-definition'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>Stream</span> <span class='hs-varid'>next</span> <span class='hs-varid'>s0</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafePerformIO</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-166"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>mlen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>upperBound</span> <span class='hs-num'>4</span> <span class='hs-varid'>len</span>
<a name="line-167"></a> <span class='hs-varid'>mallocByteString</span> <span class='hs-varid'>mlen</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>mlen</span> <span class='hs-num'>0</span> <span class='hs-varid'>s0</span>
<a name="line-168"></a> <span class='hs-keyword'>where</span>
<a name="line-169"></a> <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'>off</span> <span class='hs-varop'>!</span><span class='hs-varid'>s</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>next</span> <span class='hs-varid'>s</span> <span class='hs-keyword'>of</span>
<a name="line-170"></a> <span class='hs-conid'>Done</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>trimUp</span> <span class='hs-varid'>fp</span> <span class='hs-varid'>n</span> <span class='hs-varid'>off</span>
<a name="line-171"></a> <span class='hs-conid'>Skip</span> <span class='hs-varid'>s'</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-varid'>off</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>fp</span>
<a name="line-172"></a> <span class='hs-conid'>Yield</span> <span class='hs-varid'>x</span> <span class='hs-varid'>s'</span>
<a name="line-173"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>off</span> <span class='hs-varop'>==</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>realloc</span> <span class='hs-varid'>fp</span> <span class='hs-varid'>n</span> <span class='hs-varid'>off</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>x</span>
<a name="line-174"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-175"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pokeByteOff</span> <span class='hs-varid'>p</span> <span class='hs-varid'>off</span> <span class='hs-varid'>x</span>
<a name="line-176"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-varid'>off</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>s'</span> <span class='hs-varid'>fp</span>
<a name="line-177"></a> <span class='hs-comment'>{-# NOINLINE realloc #-}</span>
<a name="line-178"></a> <span class='hs-varid'>realloc</span> <span class='hs-varid'>fp</span> <span class='hs-varid'>n</span> <span class='hs-varid'>off</span> <span class='hs-varid'>s</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-179"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>n'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>n</span><span class='hs-varop'>+</span><span class='hs-varid'>n</span>
<a name="line-180"></a> <span class='hs-varid'>fp'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>copy0</span> <span class='hs-varid'>fp</span> <span class='hs-varid'>n</span> <span class='hs-varid'>n'</span>
<a name="line-181"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp'</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>p</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>pokeByteOff</span> <span class='hs-varid'>p</span> <span class='hs-varid'>off</span> <span class='hs-varid'>x</span>
<a name="line-182"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n'</span> <span class='hs-layout'>(</span><span class='hs-varid'>off</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>s</span> <span class='hs-varid'>fp'</span>
<a name="line-183"></a> <span class='hs-comment'>{-# NOINLINE trimUp #-}</span>
<a name="line-184"></a> <span class='hs-varid'>trimUp</span> <span class='hs-varid'>fp</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>off</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-conid'>PS</span> <span class='hs-varid'>fp</span> <span class='hs-num'>0</span> <span class='hs-varid'>off</span>
<a name="line-185"></a> <span class='hs-varid'>copy0</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>ForeignPtr</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>)</span>
<a name="line-186"></a> <span class='hs-varid'>copy0</span> <span class='hs-varop'>!</span><span class='hs-varid'>src</span> <span class='hs-varop'>!</span><span class='hs-varid'>srcLen</span> <span class='hs-varop'>!</span><span class='hs-varid'>destLen</span> <span class='hs-keyglyph'>=</span>
<a name="line-187"></a><span class='hs-cpp'>#if defined(ASSERTS)</span>
<a name="line-188"></a> <span class='hs-varid'>assert</span> <span class='hs-layout'>(</span><span class='hs-varid'>srcLen</span> <span class='hs-varop'><=</span> <span class='hs-varid'>destLen</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-189"></a><span class='hs-cpp'>#endif</span>
<a name="line-190"></a> <span class='hs-keyword'>do</span>
<a name="line-191"></a> <span class='hs-varid'>dest</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mallocByteString</span> <span class='hs-varid'>destLen</span>
<a name="line-192"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>src</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>src'</span> <span class='hs-keyglyph'>-></span>
<a name="line-193"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>dest</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>dest'</span> <span class='hs-keyglyph'>-></span>
<a name="line-194"></a> <span class='hs-varid'>memcpy</span> <span class='hs-varid'>dest'</span> <span class='hs-varid'>src'</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcLen</span><span class='hs-layout'>)</span>
<a name="line-195"></a> <span class='hs-varid'>return</span> <span class='hs-varid'>dest</span>
<a name="line-196"></a>
<a name="line-197"></a><a name="decodeError"></a><span class='hs-definition'>decodeError</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyword'>forall</span> <span class='hs-varid'>s</span><span class='hs-varop'>.</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Word8</span>
<a name="line-198"></a> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Step</span> <span class='hs-varid'>s</span> <span class='hs-conid'>Char</span>
<a name="line-199"></a><span class='hs-definition'>decodeError</span> <span class='hs-varid'>func</span> <span class='hs-varid'>kind</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>mb</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'>=</span>
<a name="line-200"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>desc</span> <span class='hs-varid'>mb</span> <span class='hs-keyword'>of</span>
<a name="line-201"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Skip</span> <span class='hs-varid'>i</span>
<a name="line-202"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Yield</span> <span class='hs-varid'>c</span> <span class='hs-varid'>i</span>
<a name="line-203"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>desc</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Data.Text.Encoding.Fusion."</span> <span class='hs-varop'>++</span> <span class='hs-varid'>func</span> <span class='hs-varop'>++</span> <span class='hs-str'>": Invalid "</span> <span class='hs-varop'>++</span>
<a name="line-204"></a> <span class='hs-varid'>kind</span> <span class='hs-varop'>++</span> <span class='hs-str'>" stream"</span>
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