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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE BangPatterns, CPP, ForeignFunctionInterface, MagicHash,
<a name="line-2"></a> UnliftedFFITypes #-}</span>
<a name="line-3"></a><span class='hs-comment'>-- |</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : Data.Text.Encoding</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : (c) 2009, 2010, 2011 Bryan O'Sullivan,</span>
<a name="line-6"></a><span class='hs-comment'>-- (c) 2009 Duncan Coutts,</span>
<a name="line-7"></a><span class='hs-comment'>-- (c) 2008, 2009 Tom Harper</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'>-- Functions for converting 'Text' values to and from 'ByteString',</span>
<a name="line-16"></a><span class='hs-comment'>-- using several standard encodings.</span>
<a name="line-17"></a><span class='hs-comment'>--</span>
<a name="line-18"></a><span class='hs-comment'>-- To gain access to a much larger family of encodings, use the</span>
<a name="line-19"></a><span class='hs-comment'>-- @text-icu@ package: <<a href="http://hackage.haskell.org/package/text-icu">http://hackage.haskell.org/package/text-icu</a>></span>
<a name="line-20"></a>
<a name="line-21"></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>
<a name="line-22"></a> <span class='hs-layout'>(</span>
<a name="line-23"></a> <span class='hs-comment'>-- * Decoding ByteStrings to Text</span>
<a name="line-24"></a> <span class='hs-comment'>-- $strict</span>
<a name="line-25"></a> <span class='hs-varid'>decodeASCII</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8</span>
<a name="line-27"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf16LE</span>
<a name="line-28"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf16BE</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf32LE</span>
<a name="line-30"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf32BE</span>
<a name="line-31"></a>
<a name="line-32"></a> <span class='hs-comment'>-- ** Catchable failure</span>
<a name="line-33"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8'</span>
<a name="line-34"></a>
<a name="line-35"></a> <span class='hs-comment'>-- ** Controllable error handling</span>
<a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8With</span>
<a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf16LEWith</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf16BEWith</span>
<a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf32LEWith</span>
<a name="line-40"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf32BEWith</span>
<a name="line-41"></a>
<a name="line-42"></a> <span class='hs-comment'>-- * Encoding Text to ByteStrings</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf8</span>
<a name="line-44"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf16LE</span>
<a name="line-45"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf16BE</span>
<a name="line-46"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf32LE</span>
<a name="line-47"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf32BE</span>
<a name="line-48"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-49"></a>
<a name="line-50"></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'>evaluate</span><span class='hs-layout'>,</span> <span class='hs-varid'>try</span><span class='hs-layout'>)</span>
<a name="line-51"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ >= 702</span>
<a name="line-52"></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'>ST</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeIOToST</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafeSTToIO</span><span class='hs-layout'>)</span>
<a name="line-53"></a><span class='hs-cpp'>#else</span>
<a name="line-54"></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'>ST</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeIOToST</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafeSTToIO</span><span class='hs-layout'>)</span>
<a name="line-55"></a><span class='hs-cpp'>#endif</span>
<a name="line-56"></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>
<a name="line-57"></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-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-58"></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-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-59"></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> <span class='hs-layout'>(</span><span class='hs-conid'>OnDecodeError</span><span class='hs-layout'>,</span> <span class='hs-conid'>UnicodeException</span><span class='hs-layout'>,</span> <span class='hs-varid'>strictDecode</span><span class='hs-layout'>)</span>
<a name="line-60"></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'>Internal</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</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'>textP</span><span class='hs-layout'>)</span>
<a name="line-61"></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'>ord</span><span class='hs-layout'>,</span> <span class='hs-varid'>unsafeWrite</span><span class='hs-layout'>)</span>
<a name="line-62"></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-63"></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>
<a name="line-64"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>C</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span> <span class='hs-layout'>(</span><span class='hs-conid'>CSize</span><span class='hs-layout'>)</span>
<a name="line-65"></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>
<a name="line-66"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Marshal</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span> <span class='hs-layout'>(</span><span class='hs-varid'>with</span><span class='hs-layout'>)</span>
<a name="line-67"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span><span class='hs-layout'>,</span> <span class='hs-varid'>minusPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>plusPtr</span><span class='hs-layout'>)</span>
<a name="line-68"></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'>peek</span><span class='hs-layout'>,</span> <span class='hs-varid'>poke</span><span class='hs-layout'>)</span>
<a name="line-69"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span> <span class='hs-layout'>(</span><span class='hs-conid'>MutableByteArray</span><span class='hs-cpp'>#</span><span class='hs-layout'>)</span>
<a name="line-70"></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-71"></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'>Array</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>A</span>
<a name="line-72"></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'>Fusion</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>E</span>
<a name="line-73"></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-74"></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'>Fusion</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>F</span>
<a name="line-75"></a>
<a name="line-76"></a><span class='hs-comment'>-- $strict</span>
<a name="line-77"></a><span class='hs-comment'>--</span>
<a name="line-78"></a><span class='hs-comment'>-- All of the single-parameter functions for decoding bytestrings</span>
<a name="line-79"></a><span class='hs-comment'>-- encoded in one of the Unicode Transformation Formats (UTF) operate</span>
<a name="line-80"></a><span class='hs-comment'>-- in a /strict/ mode: each will throw an exception if given invalid</span>
<a name="line-81"></a><span class='hs-comment'>-- input.</span>
<a name="line-82"></a><span class='hs-comment'>--</span>
<a name="line-83"></a><span class='hs-comment'>-- Each function has a variant, whose name is suffixed with -'With',</span>
<a name="line-84"></a><span class='hs-comment'>-- that gives greater control over the handling of decoding errors.</span>
<a name="line-85"></a><span class='hs-comment'>-- For instance, 'decodeUtf8' will throw an exception, but</span>
<a name="line-86"></a><span class='hs-comment'>-- 'decodeUtf8With' allows the programmer to determine what to do on a</span>
<a name="line-87"></a><span class='hs-comment'>-- decoding error.</span>
<a name="line-88"></a>
<a name="line-89"></a><a name="decodeASCII"></a><span class='hs-comment'>-- | /Deprecated/. Decode a 'ByteString' containing 7-bit ASCII</span>
<a name="line-90"></a><span class='hs-comment'>-- encoded text.</span>
<a name="line-91"></a><span class='hs-comment'>--</span>
<a name="line-92"></a><span class='hs-comment'>-- This function is deprecated. Use 'decodeUtf8' instead.</span>
<a name="line-93"></a><span class='hs-definition'>decodeASCII</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-94"></a><span class='hs-definition'>decodeASCII</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeUtf8</span>
<a name="line-95"></a><span class='hs-comment'>{-# DEPRECATED decodeASCII "Use decodeUtf8 instead" #-}</span>
<a name="line-96"></a>
<a name="line-97"></a><a name="decodeUtf8With"></a><span class='hs-comment'>-- | Decode a 'ByteString' containing UTF-8 encoded text.</span>
<a name="line-98"></a><span class='hs-definition'>decodeUtf8With</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'>Text</span>
<a name="line-99"></a><span class='hs-definition'>decodeUtf8With</span> <span class='hs-varid'>onErr</span> <span class='hs-layout'>(</span><span class='hs-conid'>PS</span> <span class='hs-varid'>fp</span> <span class='hs-varid'>off</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>textP</span> <span class='hs-layout'>(</span><span class='hs-varid'>fst</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>snd</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span>
<a name="line-100"></a> <span class='hs-keyword'>where</span>
<a name="line-101"></a> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>run2</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new</span> <span class='hs-varid'>len</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>unsafeIOToST</span> <span class='hs-varop'>.</span> <span class='hs-varid'>go</span><span class='hs-layout'>)</span>
<a name="line-102"></a> <span class='hs-varid'>desc</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Data.Text.Encoding.decodeUtf8: Invalid UTF-8 stream"</span>
<a name="line-103"></a> <span class='hs-varid'>go</span> <span class='hs-varid'>dest</span> <span class='hs-keyglyph'>=</span> <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'>ptr</span> <span class='hs-keyglyph'>-></span>
<a name="line-104"></a> <span class='hs-varid'>with</span> <span class='hs-layout'>(</span><span class='hs-num'>0</span><span class='hs-keyglyph'>::</span><span class='hs-conid'>CSize</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>destOffPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-105"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>end</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ptr</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-layout'>(</span><span class='hs-varid'>off</span> <span class='hs-varop'>+</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span>
<a name="line-106"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>curPtr</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-107"></a> <span class='hs-varid'>curPtr'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>c_decode_utf8</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>maBA</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span> <span class='hs-varid'>destOffPtr</span> <span class='hs-varid'>curPtr</span> <span class='hs-varid'>end</span>
<a name="line-108"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>curPtr'</span> <span class='hs-varop'>==</span> <span class='hs-varid'>end</span>
<a name="line-109"></a> <span class='hs-keyword'>then</span> <span class='hs-keyword'>do</span>
<a name="line-110"></a> <span class='hs-varid'>n</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>destOffPtr</span>
<a name="line-111"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>dest</span><span class='hs-layout'>,</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-112"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-113"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>curPtr'</span>
<a name="line-114"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>desc</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-115"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>loop</span> <span class='hs-varop'>$</span> <span class='hs-varid'>curPtr'</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>1</span>
<a name="line-116"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-117"></a> <span class='hs-varid'>destOff</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>destOffPtr</span>
<a name="line-118"></a> <span class='hs-varid'>w</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>unsafeSTToIO</span> <span class='hs-varop'>$</span>
<a name="line-119"></a> <span class='hs-varid'>unsafeWrite</span> <span class='hs-varid'>dest</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destOff</span><span class='hs-layout'>)</span> <span class='hs-varid'>c</span>
<a name="line-120"></a> <span class='hs-varid'>poke</span> <span class='hs-varid'>destOffPtr</span> <span class='hs-layout'>(</span><span class='hs-varid'>destOff</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
<a name="line-121"></a> <span class='hs-varid'>loop</span> <span class='hs-varop'>$</span> <span class='hs-varid'>curPtr'</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>1</span>
<a name="line-122"></a> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>ptr</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span>
<a name="line-123"></a><span class='hs-comment'>{- INLINE[0] decodeUtf8With #-}</span>
<a name="line-124"></a>
<a name="line-125"></a><a name="decodeUtf8"></a><span class='hs-comment'>-- | Decode a 'ByteString' containing UTF-8 encoded text that is known</span>
<a name="line-126"></a><span class='hs-comment'>-- to be valid.</span>
<a name="line-127"></a><span class='hs-comment'>--</span>
<a name="line-128"></a><span class='hs-comment'>-- If the input contains any invalid UTF-8 data, an exception will be</span>
<a name="line-129"></a><span class='hs-comment'>-- thrown that cannot be caught in pure code. For more control over</span>
<a name="line-130"></a><span class='hs-comment'>-- the handling of invalid data, use 'decodeUtf8'' or</span>
<a name="line-131"></a><span class='hs-comment'>-- 'decodeUtf8With'.</span>
<a name="line-132"></a><span class='hs-definition'>decodeUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-133"></a><span class='hs-definition'>decodeUtf8</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeUtf8With</span> <span class='hs-varid'>strictDecode</span>
<a name="line-134"></a><span class='hs-comment'>{-# INLINE[0] decodeUtf8 #-}</span>
<a name="line-135"></a><span class='hs-comment'>{-# RULES "STREAM stream/decodeUtf8 fusion" [1]
<a name="line-136"></a> forall bs. F.stream (decodeUtf8 bs) = E.streamUtf8 strictDecode bs #-}</span>
<a name="line-137"></a>
<a name="line-138"></a><a name="decodeUtf8'"></a><span class='hs-comment'>-- | Decode a 'ByteString' containing UTF-8 encoded text..</span>
<a name="line-139"></a><span class='hs-comment'>--</span>
<a name="line-140"></a><span class='hs-comment'>-- If the input contains any invalid UTF-8 data, the relevant</span>
<a name="line-141"></a><span class='hs-comment'>-- exception will be returned, otherwise the decoded text.</span>
<a name="line-142"></a><span class='hs-definition'>decodeUtf8'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>UnicodeException</span> <span class='hs-conid'>Text</span>
<a name="line-143"></a><span class='hs-definition'>decodeUtf8'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafePerformIO</span> <span class='hs-varop'>.</span> <span class='hs-varid'>try</span> <span class='hs-varop'>.</span> <span class='hs-varid'>evaluate</span> <span class='hs-varop'>.</span> <span class='hs-varid'>decodeUtf8With</span> <span class='hs-varid'>strictDecode</span>
<a name="line-144"></a><span class='hs-comment'>{-# INLINE decodeUtf8' #-}</span>
<a name="line-145"></a>
<a name="line-146"></a><a name="encodeUtf8"></a><span class='hs-comment'>-- | Encode text using UTF-8 encoding.</span>
<a name="line-147"></a><span class='hs-definition'>encodeUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span>
<a name="line-148"></a><span class='hs-definition'>encodeUtf8</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</span> <span class='hs-varid'>arr</span> <span class='hs-varid'>off</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'>$</span> <span class='hs-keyword'>do</span>
<a name="line-149"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>size0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-varid'>len</span> <span class='hs-num'>4</span>
<a name="line-150"></a> <span class='hs-varid'>mallocByteString</span> <span class='hs-varid'>size0</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>start</span> <span class='hs-varid'>size0</span> <span class='hs-varid'>off</span> <span class='hs-num'>0</span>
<a name="line-151"></a> <span class='hs-keyword'>where</span>
<a name="line-152"></a> <span class='hs-varid'>start</span> <span class='hs-varid'>size</span> <span class='hs-varid'>n0</span> <span class='hs-varid'>m0</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp</span> <span class='hs-varop'>$</span> <span class='hs-varid'>loop</span> <span class='hs-varid'>n0</span> <span class='hs-varid'>m0</span>
<a name="line-153"></a> <span class='hs-keyword'>where</span>
<a name="line-154"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>m1</span> <span class='hs-varid'>ptr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>n1</span> <span class='hs-varid'>m1</span>
<a name="line-155"></a> <span class='hs-keyword'>where</span>
<a name="line-156"></a> <span class='hs-varid'>offLen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>off</span> <span class='hs-varop'>+</span> <span class='hs-varid'>len</span>
<a name="line-157"></a> <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>n</span> <span class='hs-varop'>!</span><span class='hs-varid'>m</span>
<a name="line-158"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>n</span> <span class='hs-varop'>==</span> <span class='hs-varid'>offLen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PS</span> <span class='hs-varid'>fp</span> <span class='hs-num'>0</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-159"></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-160"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>poke8</span> <span class='hs-varid'>k</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>poke</span> <span class='hs-layout'>(</span><span class='hs-varid'>ptr</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-varid'>k</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>)</span>
<a name="line-161"></a> <span class='hs-varid'>ensure</span> <span class='hs-varid'>k</span> <span class='hs-varid'>act</span>
<a name="line-162"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>size</span><span class='hs-comment'>-</span><span class='hs-varid'>m</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>act</span>
<a name="line-163"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-comment'>{-# SCC "resizeUtf8/ensure" #-}</span> <span class='hs-keyword'>do</span>
<a name="line-164"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>newSize</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>size</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>1</span>
<a name="line-165"></a> <span class='hs-varid'>fp'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>mallocByteString</span> <span class='hs-varid'>newSize</span>
<a name="line-166"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp'</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr'</span> <span class='hs-keyglyph'>-></span>
<a name="line-167"></a> <span class='hs-varid'>memcpy</span> <span class='hs-varid'>ptr'</span> <span class='hs-varid'>ptr</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span>
<a name="line-168"></a> <span class='hs-varid'>start</span> <span class='hs-varid'>newSize</span> <span class='hs-varid'>n</span> <span class='hs-varid'>m</span> <span class='hs-varid'>fp'</span>
<a name="line-169"></a> <span class='hs-comment'>{-# INLINE ensure #-}</span>
<a name="line-170"></a> <span class='hs-keyword'>case</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>arr</span> <span class='hs-varid'>n</span> <span class='hs-keyword'>of</span>
<a name="line-171"></a> <span class='hs-varid'>w</span><span class='hs-keyglyph'>|</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>0x7F</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ensure</span> <span class='hs-num'>1</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-172"></a> <span class='hs-varid'>poke</span> <span class='hs-layout'>(</span><span class='hs-varid'>ptr</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-varid'>m</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>)</span>
<a name="line-173"></a> <span class='hs-comment'>-- A single ASCII octet is likely to start a run of</span>
<a name="line-174"></a> <span class='hs-comment'>-- them. We see better performance when we</span>
<a name="line-175"></a> <span class='hs-comment'>-- special-case this assumption.</span>
<a name="line-176"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>end</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ptr</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-varid'>size</span>
<a name="line-177"></a> <span class='hs-varid'>ascii</span> <span class='hs-varop'>!</span><span class='hs-varid'>t</span> <span class='hs-varop'>!</span><span class='hs-varid'>u</span>
<a name="line-178"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>t</span> <span class='hs-varop'>==</span> <span class='hs-varid'>offLen</span> <span class='hs-varop'>||</span> <span class='hs-varid'>u</span> <span class='hs-varop'>==</span> <span class='hs-varid'>end</span> <span class='hs-varop'>||</span> <span class='hs-varid'>v</span> <span class='hs-varop'>>=</span> <span class='hs-num'>0x80</span> <span class='hs-keyglyph'>=</span>
<a name="line-179"></a> <span class='hs-varid'>go</span> <span class='hs-varid'>t</span> <span class='hs-layout'>(</span><span class='hs-varid'>u</span> <span class='hs-varop'>`minusPtr`</span> <span class='hs-varid'>ptr</span><span class='hs-layout'>)</span>
<a name="line-180"></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-181"></a> <span class='hs-varid'>poke</span> <span class='hs-varid'>u</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>)</span>
<a name="line-182"></a> <span class='hs-varid'>ascii</span> <span class='hs-layout'>(</span><span class='hs-varid'>t</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>u</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-183"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>v</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>arr</span> <span class='hs-varid'>t</span>
<a name="line-184"></a> <span class='hs-varid'>ascii</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-layout'>(</span><span class='hs-varid'>ptr</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-185"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>0x7FF</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ensure</span> <span class='hs-num'>2</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-186"></a> <span class='hs-varid'>poke8</span> <span class='hs-varid'>m</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>6</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0xC0</span>
<a name="line-187"></a> <span class='hs-varid'>poke8</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0x3f</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-188"></a> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-189"></a> <span class='hs-keyglyph'>|</span> <span class='hs-num'>0xD800</span> <span class='hs-varop'><=</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>w</span> <span class='hs-varop'><=</span> <span class='hs-num'>0xDBFF</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ensure</span> <span class='hs-num'>4</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-190"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ord</span> <span class='hs-varop'>$</span> <span class='hs-conid'>U16</span><span class='hs-varop'>.</span><span class='hs-varid'>chr2</span> <span class='hs-varid'>w</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>arr</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-191"></a> <span class='hs-varid'>poke8</span> <span class='hs-varid'>m</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>18</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0xF0</span>
<a name="line-192"></a> <span class='hs-varid'>poke8</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>12</span><span class='hs-layout'>)</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0x3F</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-193"></a> <span class='hs-varid'>poke8</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>6</span><span class='hs-layout'>)</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0x3F</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-194"></a> <span class='hs-varid'>poke8</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>3</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0x3F</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-195"></a> <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>n</span><span class='hs-varop'>+</span><span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>4</span><span class='hs-layout'>)</span>
<a name="line-196"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>ensure</span> <span class='hs-num'>3</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-197"></a> <span class='hs-varid'>poke8</span> <span class='hs-varid'>m</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>12</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0xE0</span>
<a name="line-198"></a> <span class='hs-varid'>poke8</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>6</span><span class='hs-layout'>)</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0x3F</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-199"></a> <span class='hs-varid'>poke8</span> <span class='hs-layout'>(</span><span class='hs-varid'>m</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'>w</span> <span class='hs-varop'>.&.</span> <span class='hs-num'>0x3F</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-200"></a> <span class='hs-varid'>go</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-layout'>(</span><span class='hs-varid'>m</span><span class='hs-varop'>+</span><span class='hs-num'>3</span><span class='hs-layout'>)</span>
<a name="line-201"></a>
<a name="line-202"></a><a name="decodeUtf16LEWith"></a><span class='hs-comment'>-- | Decode text from little endian UTF-16 encoding.</span>
<a name="line-203"></a><span class='hs-definition'>decodeUtf16LEWith</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'>Text</span>
<a name="line-204"></a><span class='hs-definition'>decodeUtf16LEWith</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>streamUtf16LE</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span>
<a name="line-205"></a><span class='hs-comment'>{-# INLINE decodeUtf16LEWith #-}</span>
<a name="line-206"></a>
<a name="line-207"></a><a name="decodeUtf16LE"></a><span class='hs-comment'>-- | Decode text from little endian UTF-16 encoding.</span>
<a name="line-208"></a><span class='hs-comment'>--</span>
<a name="line-209"></a><span class='hs-comment'>-- If the input contains any invalid little endian UTF-16 data, an</span>
<a name="line-210"></a><span class='hs-comment'>-- exception will be thrown. For more control over the handling of</span>
<a name="line-211"></a><span class='hs-comment'>-- invalid data, use 'decodeUtf16LEWith'.</span>
<a name="line-212"></a><span class='hs-definition'>decodeUtf16LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-213"></a><span class='hs-definition'>decodeUtf16LE</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeUtf16LEWith</span> <span class='hs-varid'>strictDecode</span>
<a name="line-214"></a><span class='hs-comment'>{-# INLINE decodeUtf16LE #-}</span>
<a name="line-215"></a>
<a name="line-216"></a><a name="decodeUtf16BEWith"></a><span class='hs-comment'>-- | Decode text from big endian UTF-16 encoding.</span>
<a name="line-217"></a><span class='hs-definition'>decodeUtf16BEWith</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'>Text</span>
<a name="line-218"></a><span class='hs-definition'>decodeUtf16BEWith</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>streamUtf16BE</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span>
<a name="line-219"></a><span class='hs-comment'>{-# INLINE decodeUtf16BEWith #-}</span>
<a name="line-220"></a>
<a name="line-221"></a><a name="decodeUtf16BE"></a><span class='hs-comment'>-- | Decode text from big endian UTF-16 encoding.</span>
<a name="line-222"></a><span class='hs-comment'>--</span>
<a name="line-223"></a><span class='hs-comment'>-- If the input contains any invalid big endian UTF-16 data, an</span>
<a name="line-224"></a><span class='hs-comment'>-- exception will be thrown. For more control over the handling of</span>
<a name="line-225"></a><span class='hs-comment'>-- invalid data, use 'decodeUtf16BEWith'.</span>
<a name="line-226"></a><span class='hs-definition'>decodeUtf16BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-227"></a><span class='hs-definition'>decodeUtf16BE</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeUtf16BEWith</span> <span class='hs-varid'>strictDecode</span>
<a name="line-228"></a><span class='hs-comment'>{-# INLINE decodeUtf16BE #-}</span>
<a name="line-229"></a>
<a name="line-230"></a><a name="encodeUtf16LE"></a><span class='hs-comment'>-- | Encode text using little endian UTF-16 encoding.</span>
<a name="line-231"></a><span class='hs-definition'>encodeUtf16LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span>
<a name="line-232"></a><span class='hs-definition'>encodeUtf16LE</span> <span class='hs-varid'>txt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>restreamUtf16LE</span> <span class='hs-layout'>(</span><span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>stream</span> <span class='hs-varid'>txt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-233"></a><span class='hs-comment'>{-# INLINE encodeUtf16LE #-}</span>
<a name="line-234"></a>
<a name="line-235"></a><a name="encodeUtf16BE"></a><span class='hs-comment'>-- | Encode text using big endian UTF-16 encoding.</span>
<a name="line-236"></a><span class='hs-definition'>encodeUtf16BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span>
<a name="line-237"></a><span class='hs-definition'>encodeUtf16BE</span> <span class='hs-varid'>txt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>restreamUtf16BE</span> <span class='hs-layout'>(</span><span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>stream</span> <span class='hs-varid'>txt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-238"></a><span class='hs-comment'>{-# INLINE encodeUtf16BE #-}</span>
<a name="line-239"></a>
<a name="line-240"></a><a name="decodeUtf32LEWith"></a><span class='hs-comment'>-- | Decode text from little endian UTF-32 encoding.</span>
<a name="line-241"></a><span class='hs-definition'>decodeUtf32LEWith</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'>Text</span>
<a name="line-242"></a><span class='hs-definition'>decodeUtf32LEWith</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>streamUtf32LE</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span>
<a name="line-243"></a><span class='hs-comment'>{-# INLINE decodeUtf32LEWith #-}</span>
<a name="line-244"></a>
<a name="line-245"></a><a name="decodeUtf32LE"></a><span class='hs-comment'>-- | Decode text from little endian UTF-32 encoding.</span>
<a name="line-246"></a><span class='hs-comment'>--</span>
<a name="line-247"></a><span class='hs-comment'>-- If the input contains any invalid little endian UTF-32 data, an</span>
<a name="line-248"></a><span class='hs-comment'>-- exception will be thrown. For more control over the handling of</span>
<a name="line-249"></a><span class='hs-comment'>-- invalid data, use 'decodeUtf32LEWith'.</span>
<a name="line-250"></a><span class='hs-definition'>decodeUtf32LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-251"></a><span class='hs-definition'>decodeUtf32LE</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeUtf32LEWith</span> <span class='hs-varid'>strictDecode</span>
<a name="line-252"></a><span class='hs-comment'>{-# INLINE decodeUtf32LE #-}</span>
<a name="line-253"></a>
<a name="line-254"></a><a name="decodeUtf32BEWith"></a><span class='hs-comment'>-- | Decode text from big endian UTF-32 encoding.</span>
<a name="line-255"></a><span class='hs-definition'>decodeUtf32BEWith</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'>Text</span>
<a name="line-256"></a><span class='hs-definition'>decodeUtf32BEWith</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>streamUtf32BE</span> <span class='hs-varid'>onErr</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span>
<a name="line-257"></a><span class='hs-comment'>{-# INLINE decodeUtf32BEWith #-}</span>
<a name="line-258"></a>
<a name="line-259"></a><a name="decodeUtf32BE"></a><span class='hs-comment'>-- | Decode text from big endian UTF-32 encoding.</span>
<a name="line-260"></a><span class='hs-comment'>--</span>
<a name="line-261"></a><span class='hs-comment'>-- If the input contains any invalid big endian UTF-32 data, an</span>
<a name="line-262"></a><span class='hs-comment'>-- exception will be thrown. For more control over the handling of</span>
<a name="line-263"></a><span class='hs-comment'>-- invalid data, use 'decodeUtf32BEWith'.</span>
<a name="line-264"></a><span class='hs-definition'>decodeUtf32BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Text</span>
<a name="line-265"></a><span class='hs-definition'>decodeUtf32BE</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeUtf32BEWith</span> <span class='hs-varid'>strictDecode</span>
<a name="line-266"></a><span class='hs-comment'>{-# INLINE decodeUtf32BE #-}</span>
<a name="line-267"></a>
<a name="line-268"></a><a name="encodeUtf32LE"></a><span class='hs-comment'>-- | Encode text using little endian UTF-32 encoding.</span>
<a name="line-269"></a><span class='hs-definition'>encodeUtf32LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span>
<a name="line-270"></a><span class='hs-definition'>encodeUtf32LE</span> <span class='hs-varid'>txt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>restreamUtf32LE</span> <span class='hs-layout'>(</span><span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>stream</span> <span class='hs-varid'>txt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-271"></a><span class='hs-comment'>{-# INLINE encodeUtf32LE #-}</span>
<a name="line-272"></a>
<a name="line-273"></a><a name="encodeUtf32BE"></a><span class='hs-comment'>-- | Encode text using big endian UTF-32 encoding.</span>
<a name="line-274"></a><span class='hs-definition'>encodeUtf32BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ByteString</span>
<a name="line-275"></a><span class='hs-definition'>encodeUtf32BE</span> <span class='hs-varid'>txt</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>unstream</span> <span class='hs-layout'>(</span><span class='hs-conid'>E</span><span class='hs-varop'>.</span><span class='hs-varid'>restreamUtf32BE</span> <span class='hs-layout'>(</span><span class='hs-conid'>F</span><span class='hs-varop'>.</span><span class='hs-varid'>stream</span> <span class='hs-varid'>txt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-276"></a><span class='hs-comment'>{-# INLINE encodeUtf32BE #-}</span>
<a name="line-277"></a>
<a name="line-278"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"_hs_text_decode_utf8"</span> <span class='hs-varid'>c_decode_utf8</span>
<a name="line-279"></a> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>MutableByteArray</span><span class='hs-cpp'>#</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CSize</span>
<a name="line-280"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>)</span>
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