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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>Data/Text/Encoding.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE BangPatterns, CPP, ForeignFunctionInterface, GeneralizedNewtypeDeriving, MagicHash,
<a name="line-2"></a>    UnliftedFFITypes #-}</span>
<a name="line-3"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 702</span>
<a name="line-4"></a><span class='hs-comment'>{-# LANGUAGE Trustworthy #-}</span>
<a name="line-5"></a><span class='hs-cpp'>#endif</span>
<a name="line-6"></a><span class='hs-comment'>-- |</span>
<a name="line-7"></a><span class='hs-comment'>-- Module      : Data.Text.Encoding</span>
<a name="line-8"></a><span class='hs-comment'>-- Copyright   : (c) 2009, 2010, 2011 Bryan O'Sullivan,</span>
<a name="line-9"></a><span class='hs-comment'>--               (c) 2009 Duncan Coutts,</span>
<a name="line-10"></a><span class='hs-comment'>--               (c) 2008, 2009 Tom Harper</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- License     : BSD-style</span>
<a name="line-13"></a><span class='hs-comment'>-- Maintainer  : bos@serpentine.com</span>
<a name="line-14"></a><span class='hs-comment'>-- Stability   : experimental</span>
<a name="line-15"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-16"></a><span class='hs-comment'>--</span>
<a name="line-17"></a><span class='hs-comment'>-- Functions for converting 'Text' values to and from 'ByteString',</span>
<a name="line-18"></a><span class='hs-comment'>-- using several standard encodings.</span>
<a name="line-19"></a><span class='hs-comment'>--</span>
<a name="line-20"></a><span class='hs-comment'>-- To gain access to a much larger family of encodings, use the</span>
<a name="line-21"></a><span class='hs-comment'>-- @text-icu@ package: &lt;<a href="http://hackage.haskell.org/package/text-icu">http://hackage.haskell.org/package/text-icu</a>&gt;</span>
<a name="line-22"></a>
<a name="line-23"></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-24"></a>    <span class='hs-layout'>(</span>
<a name="line-25"></a>    <span class='hs-comment'>-- * Decoding ByteStrings to Text</span>
<a name="line-26"></a>    <span class='hs-comment'>-- $strict</span>
<a name="line-27"></a>      <span class='hs-varid'>decodeASCII</span>
<a name="line-28"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeLatin1</span>
<a name="line-29"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8</span>
<a name="line-30"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf16LE</span>
<a name="line-31"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf16BE</span>
<a name="line-32"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf32LE</span>
<a name="line-33"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf32BE</span>
<a name="line-34"></a>
<a name="line-35"></a>    <span class='hs-comment'>-- ** Catchable failure</span>
<a name="line-36"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8'</span>
<a name="line-37"></a>
<a name="line-38"></a>    <span class='hs-comment'>-- ** Controllable error handling</span>
<a name="line-39"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf8With</span>
<a name="line-40"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf16LEWith</span>
<a name="line-41"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf16BEWith</span>
<a name="line-42"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf32LEWith</span>
<a name="line-43"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>decodeUtf32BEWith</span>
<a name="line-44"></a>
<a name="line-45"></a>    <span class='hs-comment'>-- ** Stream oriented decoding</span>
<a name="line-46"></a>    <span class='hs-comment'>-- $stream</span>
<a name="line-47"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>streamDecodeUtf8</span>
<a name="line-48"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>streamDecodeUtf8With</span>
<a name="line-49"></a>    <span class='hs-layout'>,</span> <span class='hs-conid'>Decoding</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-50"></a>
<a name="line-51"></a>    <span class='hs-comment'>-- * Encoding Text to ByteStrings</span>
<a name="line-52"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf8</span>
<a name="line-53"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf16LE</span>
<a name="line-54"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf16BE</span>
<a name="line-55"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf32LE</span>
<a name="line-56"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf32BE</span>
<a name="line-57"></a>
<a name="line-58"></a><span class='hs-cpp'>#if MIN_VERSION_bytestring(0,10,4)</span>
<a name="line-59"></a>    <span class='hs-comment'>-- * Encoding Text using ByteString Builders</span>
<a name="line-60"></a>    <span class='hs-comment'>-- | /Note/ that these functions are only available if built against</span>
<a name="line-61"></a>    <span class='hs-comment'>-- @bytestring &gt;= 0.10.4.0@.</span>
<a name="line-62"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf8Builder</span>
<a name="line-63"></a>    <span class='hs-layout'>,</span> <span class='hs-varid'>encodeUtf8BuilderEscaped</span>
<a name="line-64"></a><span class='hs-cpp'>#endif</span>
<a name="line-65"></a>    <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-66"></a>
<a name="line-67"></a><span class='hs-cpp'>#if __GLASGOW_HASKELL__ &gt;= 702</span>
<a name="line-68"></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-69"></a><span class='hs-cpp'>#else</span>
<a name="line-70"></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-71"></a><span class='hs-cpp'>#endif</span>
<a name="line-72"></a>
<a name="line-73"></a><span class='hs-cpp'>#if MIN_VERSION_bytestring(0,10,4)</span>
<a name="line-74"></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'>.&amp;.</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-75"></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-varop'>.</span><span class='hs-conid'>Unsafe</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span><span class='hs-varid'>ord</span><span class='hs-layout'>)</span>
<a name="line-76"></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'>Builder</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-77"></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'>Builder</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>empty</span><span class='hs-layout'>,</span> <span class='hs-varid'>append</span><span class='hs-layout'>)</span>
<a name="line-78"></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'>Builder</span><span class='hs-varop'>.</span><span class='hs-conid'>Prim</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BP</span>
<a name="line-79"></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'>Builder</span><span class='hs-varop'>.</span><span class='hs-conid'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>BP</span>
<a name="line-80"></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'>Internal</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-81"></a><span class='hs-cpp'>#endif</span>
<a name="line-82"></a>
<a name="line-83"></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-84"></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'>runST</span><span class='hs-layout'>)</span>
<a name="line-85"></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-86"></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> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>c2w</span><span class='hs-layout'>)</span>
<a name="line-87"></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-88"></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-keyword'>safe</span><span class='hs-layout'>,</span> <span class='hs-varid'>text</span><span class='hs-layout'>)</span>
<a name="line-89"></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-varop'>.</span><span class='hs-conid'>Private</span> <span class='hs-layout'>(</span><span class='hs-varid'>runText</span><span class='hs-layout'>)</span>
<a name="line-90"></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-varop'>.</span><span class='hs-conid'>Unsafe</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeWrite</span><span class='hs-layout'>)</span>
<a name="line-91"></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-varop'>.</span><span class='hs-conid'>Unsafe</span><span class='hs-varop'>.</span><span class='hs-conid'>Shift</span> <span class='hs-layout'>(</span><span class='hs-varid'>shiftR</span><span class='hs-layout'>)</span>
<a name="line-92"></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'>Show</span> <span class='hs-conid'>()</span>
<a name="line-93"></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'>Unsafe</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeDupablePerformIO</span><span class='hs-layout'>)</span>
<a name="line-94"></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'>Word32</span><span class='hs-layout'>)</span>
<a name="line-95"></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><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-96"></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-97"></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-98"></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'>nullPtr</span><span class='hs-layout'>,</span> <span class='hs-varid'>plusPtr</span><span class='hs-layout'>)</span>
<a name="line-99"></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-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-100"></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'>ByteArray</span><span class='hs-cpp'>#</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-101"></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-102"></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'>Internal</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-103"></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'>Internal</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-104"></a>
<a name="line-105"></a><span class='hs-cpp'>#include "text_cbits.h"</span>
<a name="line-106"></a>
<a name="line-107"></a><span class='hs-comment'>-- $strict</span>
<a name="line-108"></a><span class='hs-comment'>--</span>
<a name="line-109"></a><span class='hs-comment'>-- All of the single-parameter functions for decoding bytestrings</span>
<a name="line-110"></a><span class='hs-comment'>-- encoded in one of the Unicode Transformation Formats (UTF) operate</span>
<a name="line-111"></a><span class='hs-comment'>-- in a /strict/ mode: each will throw an exception if given invalid</span>
<a name="line-112"></a><span class='hs-comment'>-- input.</span>
<a name="line-113"></a><span class='hs-comment'>--</span>
<a name="line-114"></a><span class='hs-comment'>-- Each function has a variant, whose name is suffixed with -'With',</span>
<a name="line-115"></a><span class='hs-comment'>-- that gives greater control over the handling of decoding errors.</span>
<a name="line-116"></a><span class='hs-comment'>-- For instance, 'decodeUtf8' will throw an exception, but</span>
<a name="line-117"></a><span class='hs-comment'>-- 'decodeUtf8With' allows the programmer to determine what to do on a</span>
<a name="line-118"></a><span class='hs-comment'>-- decoding error.</span>
<a name="line-119"></a>
<a name="line-120"></a><a name="decodeASCII"></a><span class='hs-comment'>-- | /Deprecated/.  Decode a 'ByteString' containing 7-bit ASCII</span>
<a name="line-121"></a><span class='hs-comment'>-- encoded text.</span>
<a name="line-122"></a><span class='hs-definition'>decodeASCII</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-123"></a><span class='hs-definition'>decodeASCII</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeUtf8</span>
<a name="line-124"></a><span class='hs-comment'>{-# DEPRECATED decodeASCII "Use decodeUtf8 instead" #-}</span>
<a name="line-125"></a>
<a name="line-126"></a><a name="decodeLatin1"></a><span class='hs-comment'>-- | Decode a 'ByteString' containing Latin-1 (aka ISO-8859-1) encoded text.</span>
<a name="line-127"></a><span class='hs-comment'>--</span>
<a name="line-128"></a><span class='hs-comment'>-- 'decodeLatin1' is semantically equivalent to</span>
<a name="line-129"></a><span class='hs-comment'>--  @Data.Text.pack . Data.ByteString.Char8.unpack@</span>
<a name="line-130"></a><span class='hs-definition'>decodeLatin1</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-131"></a><span class='hs-definition'>decodeLatin1</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'>text</span> <span class='hs-varid'>a</span> <span class='hs-num'>0</span> <span class='hs-varid'>len</span>
<a name="line-132"></a> <span class='hs-keyword'>where</span>
<a name="line-133"></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'>run</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'>&gt;&gt;=</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-134"></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'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-135"></a>    <span class='hs-varid'>c_decode_latin1</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-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> <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'>off</span><span class='hs-varop'>+</span><span class='hs-varid'>len</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-136"></a>    <span class='hs-varid'>return</span> <span class='hs-varid'>dest</span>
<a name="line-137"></a>
<a name="line-138"></a><a name="decodeUtf8With"></a><span class='hs-comment'>-- | Decode a 'ByteString' containing UTF-8 encoded text.</span>
<a name="line-139"></a><span class='hs-definition'>decodeUtf8With</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-140"></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'>runText</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>done</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-141"></a>  <span class='hs-keyword'>let</span> <span class='hs-varid'>go</span> <span class='hs-varid'>dest</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-142"></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'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-143"></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-144"></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-145"></a>                <span class='hs-varid'>curPtr'</span> <span class='hs-keyglyph'>&lt;-</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-146"></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-147"></a>                  <span class='hs-keyword'>then</span> <span class='hs-keyword'>do</span>
<a name="line-148"></a>                    <span class='hs-varid'>n</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>destOffPtr</span>
<a name="line-149"></a>                    <span class='hs-varid'>unsafeSTToIO</span> <span class='hs-layout'>(</span><span class='hs-varid'>done</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><span class='hs-layout'>)</span>
<a name="line-150"></a>                  <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-151"></a>                    <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>curPtr'</span>
<a name="line-152"></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-153"></a>                      <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</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-154"></a>                      <span class='hs-conid'>Just</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-155"></a>                        <span class='hs-varid'>destOff</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>destOffPtr</span>
<a name="line-156"></a>                        <span class='hs-varid'>w</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>unsafeSTToIO</span> <span class='hs-varop'>$</span>
<a name="line-157"></a>                             <span class='hs-varid'>unsafeWrite</span> <span class='hs-varid'>dest</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destOff</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-keyword'>safe</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-158"></a>                        <span class='hs-varid'>poke</span> <span class='hs-varid'>destOffPtr</span> <span class='hs-layout'>(</span><span class='hs-varid'>destOff</span> <span class='hs-varop'>+</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
<a name="line-159"></a>                        <span class='hs-varid'>loop</span> <span class='hs-varop'>$</span> <span class='hs-varid'>curPtr'</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>1</span>
<a name="line-160"></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-161"></a>  <span class='hs-layout'>(</span><span class='hs-varid'>unsafeIOToST</span> <span class='hs-varop'>.</span> <span class='hs-varid'>go</span><span class='hs-layout'>)</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new</span> <span class='hs-varid'>len</span>
<a name="line-162"></a> <span class='hs-keyword'>where</span>
<a name="line-163"></a>  <span class='hs-varid'>desc</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Data.Text.Internal.Encoding.decodeUtf8: Invalid UTF-8 stream"</span>
<a name="line-164"></a><span class='hs-comment'>{- INLINE[0] decodeUtf8With #-}</span>
<a name="line-165"></a>
<a name="line-166"></a><span class='hs-comment'>-- $stream</span>
<a name="line-167"></a><span class='hs-comment'>--</span>
<a name="line-168"></a><span class='hs-comment'>-- The 'streamDecodeUtf8' and 'streamDecodeUtf8With' functions accept</span>
<a name="line-169"></a><span class='hs-comment'>-- a 'ByteString' that represents a possibly incomplete input (e.g. a</span>
<a name="line-170"></a><span class='hs-comment'>-- packet from a network stream) that may not end on a UTF-8 boundary.</span>
<a name="line-171"></a><span class='hs-comment'>--</span>
<a name="line-172"></a><span class='hs-comment'>-- 1. The maximal prefix of 'Text' that could be decoded from the</span>
<a name="line-173"></a><span class='hs-comment'>--    given input.</span>
<a name="line-174"></a><span class='hs-comment'>--</span>
<a name="line-175"></a><span class='hs-comment'>-- 2. The suffix of the 'ByteString' that could not be decoded due to</span>
<a name="line-176"></a><span class='hs-comment'>--    insufficient input.</span>
<a name="line-177"></a><span class='hs-comment'>--</span>
<a name="line-178"></a><span class='hs-comment'>-- 3. A function that accepts another 'ByteString'.  That string will</span>
<a name="line-179"></a><span class='hs-comment'>--    be assumed to directly follow the string that was passed as</span>
<a name="line-180"></a><span class='hs-comment'>--    input to the original function, and it will in turn be decoded.</span>
<a name="line-181"></a><span class='hs-comment'>--</span>
<a name="line-182"></a><span class='hs-comment'>-- To help understand the use of these functions, consider the Unicode</span>
<a name="line-183"></a><span class='hs-comment'>-- string @\"hi &amp;#9731;\"@. If encoded as UTF-8, this becomes @\"hi</span>
<a name="line-184"></a><span class='hs-comment'>-- \\xe2\\x98\\x83\"@; the final @\'&amp;#9731;\'@ is encoded as 3 bytes.</span>
<a name="line-185"></a><span class='hs-comment'>--</span>
<a name="line-186"></a><span class='hs-comment'>-- Now suppose that we receive this encoded string as 3 packets that</span>
<a name="line-187"></a><span class='hs-comment'>-- are split up on untidy boundaries: @[\"hi \\xe2\", \"\\x98\",</span>
<a name="line-188"></a><span class='hs-comment'>-- \"\\x83\"]@. We cannot decode the entire Unicode string until we</span>
<a name="line-189"></a><span class='hs-comment'>-- have received all three packets, but we would like to make progress</span>
<a name="line-190"></a><span class='hs-comment'>-- as we receive each one.</span>
<a name="line-191"></a><span class='hs-comment'>--</span>
<a name="line-192"></a><span class='hs-comment'>-- @</span>
<a name="line-193"></a><span class='hs-comment'>-- ghci&gt; let s0\@('Some' _ _ f0) = 'streamDecodeUtf8' \"hi \\xe2\"</span>
<a name="line-194"></a><span class='hs-comment'>-- ghci&gt; s0</span>
<a name="line-195"></a><span class='hs-comment'>-- 'Some' \"hi \" \"\\xe2\" _</span>
<a name="line-196"></a><span class='hs-comment'>-- @</span>
<a name="line-197"></a><span class='hs-comment'>--</span>
<a name="line-198"></a><span class='hs-comment'>-- We use the continuation @f0@ to decode our second packet.</span>
<a name="line-199"></a><span class='hs-comment'>--</span>
<a name="line-200"></a><span class='hs-comment'>-- @</span>
<a name="line-201"></a><span class='hs-comment'>-- ghci&gt; let s1\@('Some' _ _ f1) = f0 \"\\x98\"</span>
<a name="line-202"></a><span class='hs-comment'>-- ghci&gt; s1</span>
<a name="line-203"></a><span class='hs-comment'>-- 'Some' \"\" \"\\xe2\\x98\"</span>
<a name="line-204"></a><span class='hs-comment'>-- @</span>
<a name="line-205"></a><span class='hs-comment'>--</span>
<a name="line-206"></a><span class='hs-comment'>-- We could not give @f0@ enough input to decode anything, so it</span>
<a name="line-207"></a><span class='hs-comment'>-- returned an empty string. Once we feed our second continuation @f1@</span>
<a name="line-208"></a><span class='hs-comment'>-- the last byte of input, it will make progress.</span>
<a name="line-209"></a><span class='hs-comment'>--</span>
<a name="line-210"></a><span class='hs-comment'>-- @</span>
<a name="line-211"></a><span class='hs-comment'>-- ghci&gt; let s2\@('Some' _ _ f2) = f1 \"\\x83\"</span>
<a name="line-212"></a><span class='hs-comment'>-- ghci&gt; s2</span>
<a name="line-213"></a><span class='hs-comment'>-- 'Some' \"\\x2603\" \"\" _</span>
<a name="line-214"></a><span class='hs-comment'>-- @</span>
<a name="line-215"></a><span class='hs-comment'>--</span>
<a name="line-216"></a><span class='hs-comment'>-- If given invalid input, an exception will be thrown by the function</span>
<a name="line-217"></a><span class='hs-comment'>-- or continuation where it is encountered.</span>
<a name="line-218"></a>
<a name="line-219"></a><a name="Decoding"></a><span class='hs-comment'>-- | A stream oriented decoding result.</span>
<a name="line-220"></a><a name="Decoding"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Decoding</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Some</span> <span class='hs-conid'>Text</span> <span class='hs-conid'>ByteString</span> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Decoding</span><span class='hs-layout'>)</span>
<a name="line-221"></a>
<a name="line-222"></a><a name="instance%20Show%20Decoding"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Show</span> <span class='hs-conid'>Decoding</span> <span class='hs-keyword'>where</span>
<a name="line-223"></a>    <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>d</span> <span class='hs-layout'>(</span><span class='hs-conid'>Some</span> <span class='hs-varid'>t</span> <span class='hs-varid'>bs</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>showParen</span> <span class='hs-layout'>(</span><span class='hs-varid'>d</span> <span class='hs-varop'>&gt;</span> <span class='hs-varid'>prec</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-224"></a>                                <span class='hs-varid'>showString</span> <span class='hs-str'>"Some "</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>prec'</span> <span class='hs-varid'>t</span> <span class='hs-varop'>.</span>
<a name="line-225"></a>                                <span class='hs-varid'>showChar</span> <span class='hs-chr'>' '</span> <span class='hs-varop'>.</span> <span class='hs-varid'>showsPrec</span> <span class='hs-varid'>prec'</span> <span class='hs-varid'>bs</span> <span class='hs-varop'>.</span>
<a name="line-226"></a>                                <span class='hs-varid'>showString</span> <span class='hs-str'>" _"</span>
<a name="line-227"></a>      <span class='hs-keyword'>where</span> <span class='hs-varid'>prec</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>10</span><span class='hs-layout'>;</span> <span class='hs-varid'>prec'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>prec</span> <span class='hs-varop'>+</span> <span class='hs-num'>1</span>
<a name="line-228"></a>
<a name="line-229"></a><a name="CodePoint"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>CodePoint</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>CodePoint</span> <span class='hs-conid'>Word32</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Num</span><span class='hs-layout'>,</span> <span class='hs-conid'>Storable</span><span class='hs-layout'>)</span>
<a name="line-230"></a><a name="DecoderState"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>DecoderState</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DecoderState</span> <span class='hs-conid'>Word32</span> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Num</span><span class='hs-layout'>,</span> <span class='hs-conid'>Storable</span><span class='hs-layout'>)</span>
<a name="line-231"></a>
<a name="line-232"></a><a name="streamDecodeUtf8"></a><span class='hs-comment'>-- | Decode, in a stream oriented way, a 'ByteString' containing UTF-8</span>
<a name="line-233"></a><span class='hs-comment'>-- encoded text that is known to be valid.</span>
<a name="line-234"></a><span class='hs-comment'>--</span>
<a name="line-235"></a><span class='hs-comment'>-- If the input contains any invalid UTF-8 data, an exception will be</span>
<a name="line-236"></a><span class='hs-comment'>-- thrown (either by this function or a continuation) that cannot be</span>
<a name="line-237"></a><span class='hs-comment'>-- caught in pure code.  For more control over the handling of invalid</span>
<a name="line-238"></a><span class='hs-comment'>-- data, use 'streamDecodeUtf8With'.</span>
<a name="line-239"></a><span class='hs-definition'>streamDecodeUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Decoding</span>
<a name="line-240"></a><span class='hs-definition'>streamDecodeUtf8</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>streamDecodeUtf8With</span> <span class='hs-varid'>strictDecode</span>
<a name="line-241"></a>
<a name="line-242"></a><a name="streamDecodeUtf8With"></a><span class='hs-comment'>-- | Decode, in a stream oriented way, a 'ByteString' containing UTF-8</span>
<a name="line-243"></a><span class='hs-comment'>-- encoded text.</span>
<a name="line-244"></a><span class='hs-definition'>streamDecodeUtf8With</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Decoding</span>
<a name="line-245"></a><span class='hs-definition'>streamDecodeUtf8With</span> <span class='hs-varid'>onErr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>decodeChunk</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span>
<a name="line-246"></a> <span class='hs-keyword'>where</span>
<a name="line-247"></a>  <span class='hs-comment'>-- We create a slightly larger than necessary buffer to accommodate a</span>
<a name="line-248"></a>  <span class='hs-comment'>-- potential surrogate pair started in the last buffer</span>
<a name="line-249"></a>  <span class='hs-varid'>decodeChunk</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>CodePoint</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>DecoderState</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-250"></a>              <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Decoding</span>
<a name="line-251"></a>  <span class='hs-varid'>decodeChunk</span> <span class='hs-varid'>undecoded0</span> <span class='hs-varid'>codepoint0</span> <span class='hs-varid'>state0</span> <span class='hs-varid'>bs</span><span class='hs-keyglyph'>@</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>
<a name="line-252"></a>    <span class='hs-varid'>runST</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeIOToST</span> <span class='hs-varop'>.</span> <span class='hs-varid'>decodeChunkToBuffer</span><span class='hs-layout'>)</span> <span class='hs-varop'>=&lt;&lt;</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>new</span> <span class='hs-layout'>(</span><span class='hs-varid'>len</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-253"></a>   <span class='hs-keyword'>where</span>
<a name="line-254"></a>    <span class='hs-varid'>decodeChunkToBuffer</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-conid'>MArray</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Decoding</span>
<a name="line-255"></a>    <span class='hs-varid'>decodeChunkToBuffer</span> <span class='hs-varid'>dest</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-256"></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'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>destOffPtr</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-257"></a>      <span class='hs-varid'>with</span> <span class='hs-varid'>codepoint0</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>codepointPtr</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-258"></a>      <span class='hs-varid'>with</span> <span class='hs-varid'>state0</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>statePtr</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-259"></a>      <span class='hs-varid'>with</span> <span class='hs-varid'>nullPtr</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>curPtrPtr</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-260"></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-261"></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-262"></a>              <span class='hs-varid'>poke</span> <span class='hs-varid'>curPtrPtr</span> <span class='hs-varid'>curPtr</span>
<a name="line-263"></a>              <span class='hs-varid'>curPtr'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>c_decode_utf8_with_state</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>
<a name="line-264"></a>                         <span class='hs-varid'>curPtrPtr</span> <span class='hs-varid'>end</span> <span class='hs-varid'>codepointPtr</span> <span class='hs-varid'>statePtr</span>
<a name="line-265"></a>              <span class='hs-varid'>state</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>statePtr</span>
<a name="line-266"></a>              <span class='hs-keyword'>case</span> <span class='hs-varid'>state</span> <span class='hs-keyword'>of</span>
<a name="line-267"></a>                <span class='hs-conid'>UTF8_REJECT</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-268"></a>                  <span class='hs-comment'>-- We encountered an encoding error</span>
<a name="line-269"></a>                  <span class='hs-varid'>x</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>curPtr'</span>
<a name="line-270"></a>                  <span class='hs-varid'>poke</span> <span class='hs-varid'>statePtr</span> <span class='hs-num'>0</span>
<a name="line-271"></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-272"></a>                    <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-varid'>loop</span> <span class='hs-varop'>$</span> <span class='hs-varid'>curPtr'</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>1</span>
<a name="line-273"></a>                    <span class='hs-conid'>Just</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-274"></a>                      <span class='hs-varid'>destOff</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>destOffPtr</span>
<a name="line-275"></a>                      <span class='hs-varid'>w</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>unsafeSTToIO</span> <span class='hs-varop'>$</span>
<a name="line-276"></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-layout'>(</span><span class='hs-keyword'>safe</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span>
<a name="line-277"></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-278"></a>                      <span class='hs-varid'>loop</span> <span class='hs-varop'>$</span> <span class='hs-varid'>curPtr'</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>1</span>
<a name="line-279"></a>
<a name="line-280"></a>                <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-281"></a>                  <span class='hs-comment'>-- We encountered the end of the buffer while decoding</span>
<a name="line-282"></a>                  <span class='hs-varid'>n</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>destOffPtr</span>
<a name="line-283"></a>                  <span class='hs-varid'>codepoint</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>codepointPtr</span>
<a name="line-284"></a>                  <span class='hs-varid'>chunkText</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>unsafeSTToIO</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-285"></a>                      <span class='hs-varid'>arr</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeFreeze</span> <span class='hs-varid'>dest</span>
<a name="line-286"></a>                      <span class='hs-varid'>return</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>text</span> <span class='hs-varid'>arr</span> <span class='hs-num'>0</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span>
<a name="line-287"></a>                  <span class='hs-varid'>lastPtr</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>curPtrPtr</span>
<a name="line-288"></a>                  <span class='hs-keyword'>let</span> <span class='hs-varid'>left</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>lastPtr</span> <span class='hs-varop'>`minusPtr`</span> <span class='hs-varid'>curPtr</span>
<a name="line-289"></a>                      <span class='hs-varop'>!</span><span class='hs-varid'>undecoded</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>state</span> <span class='hs-keyword'>of</span>
<a name="line-290"></a>                        <span class='hs-conid'>UTF8_ACCEPT</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-291"></a>                        <span class='hs-keyword'>_</span>           <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>append</span> <span class='hs-varid'>undecoded0</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-varid'>left</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span>
<a name="line-292"></a>                  <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Some</span> <span class='hs-varid'>chunkText</span> <span class='hs-varid'>undecoded</span>
<a name="line-293"></a>                           <span class='hs-layout'>(</span><span class='hs-varid'>decodeChunk</span> <span class='hs-varid'>undecoded</span> <span class='hs-varid'>codepoint</span> <span class='hs-varid'>state</span><span class='hs-layout'>)</span>
<a name="line-294"></a>        <span class='hs-keyword'>in</span> <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-295"></a>  <span class='hs-varid'>desc</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"Data.Text.Internal.Encoding.streamDecodeUtf8With: Invalid UTF-8 stream"</span>
<a name="line-296"></a>
<a name="line-297"></a><a name="decodeUtf8"></a><span class='hs-comment'>-- | Decode a 'ByteString' containing UTF-8 encoded text that is known</span>
<a name="line-298"></a><span class='hs-comment'>-- to be valid.</span>
<a name="line-299"></a><span class='hs-comment'>--</span>
<a name="line-300"></a><span class='hs-comment'>-- If the input contains any invalid UTF-8 data, an exception will be</span>
<a name="line-301"></a><span class='hs-comment'>-- thrown that cannot be caught in pure code.  For more control over</span>
<a name="line-302"></a><span class='hs-comment'>-- the handling of invalid data, use 'decodeUtf8'' or</span>
<a name="line-303"></a><span class='hs-comment'>-- 'decodeUtf8With'.</span>
<a name="line-304"></a><span class='hs-definition'>decodeUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-305"></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-306"></a><span class='hs-comment'>{-# INLINE[0] decodeUtf8 #-}</span>
<a name="line-307"></a><span class='hs-comment'>{-# RULES "STREAM stream/decodeUtf8 fusion" [1]
<a name="line-308"></a>    forall bs. F.stream (decodeUtf8 bs) = E.streamUtf8 strictDecode bs #-}</span>
<a name="line-309"></a>
<a name="line-310"></a><a name="decodeUtf8'"></a><span class='hs-comment'>-- | Decode a 'ByteString' containing UTF-8 encoded text.</span>
<a name="line-311"></a><span class='hs-comment'>--</span>
<a name="line-312"></a><span class='hs-comment'>-- If the input contains any invalid UTF-8 data, the relevant</span>
<a name="line-313"></a><span class='hs-comment'>-- exception will be returned, otherwise the decoded text.</span>
<a name="line-314"></a><span class='hs-definition'>decodeUtf8'</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Either</span> <span class='hs-conid'>UnicodeException</span> <span class='hs-conid'>Text</span>
<a name="line-315"></a><span class='hs-definition'>decodeUtf8'</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeDupablePerformIO</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-316"></a><span class='hs-comment'>{-# INLINE decodeUtf8' #-}</span>
<a name="line-317"></a>
<a name="line-318"></a><span class='hs-cpp'>#if MIN_VERSION_bytestring(0,10,4)</span>
<a name="line-319"></a>
<a name="line-320"></a><a name="encodeUtf8Builder"></a><span class='hs-comment'>-- | Encode text to a ByteString 'B.Builder' using UTF-8 encoding.</span>
<a name="line-321"></a><span class='hs-definition'>encodeUtf8Builder</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>Builder</span>
<a name="line-322"></a><span class='hs-definition'>encodeUtf8Builder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>encodeUtf8BuilderEscaped</span> <span class='hs-layout'>(</span><span class='hs-conid'>BP</span><span class='hs-varop'>.</span><span class='hs-varid'>liftFixedToBounded</span> <span class='hs-conid'>BP</span><span class='hs-varop'>.</span><span class='hs-varid'>word8</span><span class='hs-layout'>)</span>
<a name="line-323"></a>
<a name="line-324"></a><a name="encodeUtf8BuilderEscaped"></a><span class='hs-comment'>-- | Encode text using UTF-8 encoding and escape the ASCII characters using</span>
<a name="line-325"></a><span class='hs-comment'>-- a 'BP.BoundedPrim'.</span>
<a name="line-326"></a><span class='hs-comment'>--</span>
<a name="line-327"></a><span class='hs-comment'>-- Use this function is to implement efficient encoders for text-based formats</span>
<a name="line-328"></a><span class='hs-comment'>-- like JSON or HTML.</span>
<a name="line-329"></a><span class='hs-comment'>{-# INLINE encodeUtf8BuilderEscaped #-}</span>
<a name="line-330"></a><span class='hs-comment'>-- TODO: Extend documentation with references to source code in @blaze-html@</span>
<a name="line-331"></a><span class='hs-comment'>-- or @aeson@ that uses this function.</span>
<a name="line-332"></a><span class='hs-definition'>encodeUtf8BuilderEscaped</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>BP</span><span class='hs-varop'>.</span><span class='hs-conid'>BoundedPrim</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>Builder</span>
<a name="line-333"></a><span class='hs-definition'>encodeUtf8BuilderEscaped</span> <span class='hs-varid'>be</span> <span class='hs-keyglyph'>=</span>
<a name="line-334"></a>    <span class='hs-comment'>-- manual eta-expansion to ensure inlining works as expected</span>
<a name="line-335"></a>    <span class='hs-keyglyph'>\</span><span class='hs-varid'>txt</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>builder</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkBuildstep</span> <span class='hs-varid'>txt</span><span class='hs-layout'>)</span>
<a name="line-336"></a>  <span class='hs-keyword'>where</span>
<a name="line-337"></a>    <span class='hs-varid'>bound</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>max</span> <span class='hs-num'>4</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BP</span><span class='hs-varop'>.</span><span class='hs-varid'>sizeBound</span> <span class='hs-varid'>be</span>
<a name="line-338"></a>
<a name="line-339"></a>    <span class='hs-varid'>mkBuildstep</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-varop'>!</span><span class='hs-varid'>k</span> <span class='hs-keyglyph'>=</span>
<a name="line-340"></a>        <span class='hs-varid'>outerLoop</span> <span class='hs-varid'>off</span>
<a name="line-341"></a>      <span class='hs-keyword'>where</span>
<a name="line-342"></a>        <span class='hs-varid'>iend</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-343"></a>
<a name="line-344"></a>        <span class='hs-varid'>outerLoop</span> <span class='hs-varop'>!</span><span class='hs-varid'>i0</span> <span class='hs-varop'>!</span><span class='hs-varid'>br</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>BufferRange</span> <span class='hs-varid'>op0</span> <span class='hs-varid'>ope</span><span class='hs-layout'>)</span>
<a name="line-345"></a>          <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i0</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>iend</span>       <span class='hs-keyglyph'>=</span> <span class='hs-varid'>k</span> <span class='hs-varid'>br</span>
<a name="line-346"></a>          <span class='hs-keyglyph'>|</span> <span class='hs-varid'>outRemaining</span> <span class='hs-varop'>&gt;</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>goPartial</span> <span class='hs-layout'>(</span><span class='hs-varid'>i0</span> <span class='hs-varop'>+</span> <span class='hs-varid'>min</span> <span class='hs-varid'>outRemaining</span> <span class='hs-varid'>inpRemaining</span><span class='hs-layout'>)</span>
<a name="line-347"></a>          <span class='hs-comment'>-- TODO: Use a loop with an integrated bound's check if outRemaining</span>
<a name="line-348"></a>          <span class='hs-comment'>-- is smaller than 8, as this will save on divisions.</span>
<a name="line-349"></a>          <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>        <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-varop'>$</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>bufferFull</span> <span class='hs-varid'>bound</span> <span class='hs-varid'>op0</span> <span class='hs-layout'>(</span><span class='hs-varid'>outerLoop</span> <span class='hs-varid'>i0</span><span class='hs-layout'>)</span>
<a name="line-350"></a>          <span class='hs-keyword'>where</span>
<a name="line-351"></a>            <span class='hs-varid'>outRemaining</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>ope</span> <span class='hs-varop'>`minusPtr`</span> <span class='hs-varid'>op0</span><span class='hs-layout'>)</span> <span class='hs-varop'>`div`</span> <span class='hs-varid'>bound</span>
<a name="line-352"></a>            <span class='hs-varid'>inpRemaining</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>iend</span> <span class='hs-comment'>-</span> <span class='hs-varid'>i0</span>
<a name="line-353"></a>
<a name="line-354"></a>            <span class='hs-varid'>goPartial</span> <span class='hs-varop'>!</span><span class='hs-varid'>iendTmp</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>go</span> <span class='hs-varid'>i0</span> <span class='hs-varid'>op0</span>
<a name="line-355"></a>              <span class='hs-keyword'>where</span>
<a name="line-356"></a>                <span class='hs-varid'>go</span> <span class='hs-varop'>!</span><span class='hs-varid'>i</span> <span class='hs-varop'>!</span><span class='hs-varid'>op</span>
<a name="line-357"></a>                  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-varop'>&lt;</span> <span class='hs-varid'>iendTmp</span> <span class='hs-keyglyph'>=</span> <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'>i</span> <span class='hs-keyword'>of</span>
<a name="line-358"></a>                      <span class='hs-varid'>w</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&lt;=</span> <span class='hs-num'>0x7F</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-359"></a>                            <span class='hs-conid'>BP</span><span class='hs-varop'>.</span><span class='hs-varid'>runB</span> <span class='hs-varid'>be</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span> <span class='hs-varid'>op</span> <span class='hs-varop'>&gt;&gt;=</span> <span class='hs-varid'>go</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-360"></a>                        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&lt;=</span> <span class='hs-num'>0x7FF</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-361"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>0</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>6</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0xC0</span>
<a name="line-362"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>1</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>.&amp;.</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-363"></a>                            <span class='hs-varid'>go</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-layout'>(</span><span class='hs-varid'>op</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span>
<a name="line-364"></a>                        <span class='hs-keyglyph'>|</span> <span class='hs-num'>0xD800</span> <span class='hs-varop'>&lt;=</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&amp;&amp;</span> <span class='hs-varid'>w</span> <span class='hs-varop'>&lt;=</span> <span class='hs-num'>0xDBFF</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-365"></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'>$</span> <span class='hs-conid'>U16</span><span class='hs-varop'>.</span><span class='hs-varid'>chr2</span> <span class='hs-varid'>w</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>unsafeIndex</span> <span class='hs-varid'>arr</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-366"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>0</span> <span class='hs-varop'>$</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-367"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>1</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>12</span><span class='hs-layout'>)</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-num'>0x3F</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-368"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>2</span> <span class='hs-varop'>$</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'>.&amp;.</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-369"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>3</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-num'>0x3F</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-370"></a>                            <span class='hs-varid'>go</span> <span class='hs-layout'>(</span><span class='hs-varid'>i</span> <span class='hs-varop'>+</span> <span class='hs-num'>2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>op</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>4</span><span class='hs-layout'>)</span>
<a name="line-371"></a>                        <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-372"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>0</span> <span class='hs-varop'>$</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-373"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>1</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>6</span><span class='hs-layout'>)</span> <span class='hs-varop'>.&amp;.</span> <span class='hs-num'>0x3F</span><span class='hs-layout'>)</span> <span class='hs-varop'>+</span> <span class='hs-num'>0x80</span>
<a name="line-374"></a>                            <span class='hs-varid'>poke8</span> <span class='hs-num'>2</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varop'>.&amp;.</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-375"></a>                            <span class='hs-varid'>go</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-layout'>(</span><span class='hs-varid'>op</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-num'>3</span><span class='hs-layout'>)</span>
<a name="line-376"></a>                  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span>
<a name="line-377"></a>                      <span class='hs-varid'>outerLoop</span> <span class='hs-varid'>i</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>BufferRange</span> <span class='hs-varid'>op</span> <span class='hs-varid'>ope</span><span class='hs-layout'>)</span>
<a name="line-378"></a>                  <span class='hs-keyword'>where</span>
<a name="line-379"></a>                    <span class='hs-varid'>poke8</span> <span class='hs-varid'>j</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'>op</span> <span class='hs-varop'>`plusPtr`</span> <span class='hs-varid'>j</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-380"></a><span class='hs-cpp'>#endif</span>
<a name="line-381"></a>
<a name="line-382"></a><a name="encodeUtf8"></a><span class='hs-comment'>-- | Encode text using UTF-8 encoding.</span>
<a name="line-383"></a><span class='hs-definition'>encodeUtf8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-384"></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>
<a name="line-385"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>len</span> <span class='hs-varop'>==</span> <span class='hs-num'>0</span>  <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>empty</span>
<a name="line-386"></a>  <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeDupablePerformIO</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-387"></a>  <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>mallocByteString</span> <span class='hs-layout'>(</span><span class='hs-varid'>len</span><span class='hs-varop'>*</span><span class='hs-num'>4</span><span class='hs-layout'>)</span>
<a name="line-388"></a>  <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>fp</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>ptr</span> <span class='hs-keyglyph'>-&gt;</span>
<a name="line-389"></a>    <span class='hs-varid'>with</span> <span class='hs-varid'>ptr</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>destPtr</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-390"></a>      <span class='hs-varid'>c_encode_utf8</span> <span class='hs-varid'>destPtr</span> <span class='hs-layout'>(</span><span class='hs-conid'>A</span><span class='hs-varop'>.</span><span class='hs-varid'>aBA</span> <span class='hs-varid'>arr</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>len</span><span class='hs-layout'>)</span>
<a name="line-391"></a>      <span class='hs-varid'>newDest</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>destPtr</span>
<a name="line-392"></a>      <span class='hs-keyword'>let</span> <span class='hs-varid'>utf8len</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>newDest</span> <span class='hs-varop'>`minusPtr`</span> <span class='hs-varid'>ptr</span>
<a name="line-393"></a>      <span class='hs-keyword'>if</span> <span class='hs-varid'>utf8len</span> <span class='hs-varop'>&gt;=</span> <span class='hs-varid'>len</span> <span class='hs-varop'>`shiftR`</span> <span class='hs-num'>1</span>
<a name="line-394"></a>        <span class='hs-keyword'>then</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'>utf8len</span><span class='hs-layout'>)</span>
<a name="line-395"></a>        <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-396"></a>          <span class='hs-varid'>fp'</span> <span class='hs-keyglyph'>&lt;-</span> <span class='hs-varid'>mallocByteString</span> <span class='hs-varid'>utf8len</span>
<a name="line-397"></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'>-&gt;</span> <span class='hs-keyword'>do</span>
<a name="line-398"></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'>utf8len</span><span class='hs-layout'>)</span>
<a name="line-399"></a>            <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'>utf8len</span><span class='hs-layout'>)</span>
<a name="line-400"></a>
<a name="line-401"></a><a name="decodeUtf16LEWith"></a><span class='hs-comment'>-- | Decode text from little endian UTF-16 encoding.</span>
<a name="line-402"></a><span class='hs-definition'>decodeUtf16LEWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-403"></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-404"></a><span class='hs-comment'>{-# INLINE decodeUtf16LEWith #-}</span>
<a name="line-405"></a>
<a name="line-406"></a><a name="decodeUtf16LE"></a><span class='hs-comment'>-- | Decode text from little endian UTF-16 encoding.</span>
<a name="line-407"></a><span class='hs-comment'>--</span>
<a name="line-408"></a><span class='hs-comment'>-- If the input contains any invalid little endian UTF-16 data, an</span>
<a name="line-409"></a><span class='hs-comment'>-- exception will be thrown.  For more control over the handling of</span>
<a name="line-410"></a><span class='hs-comment'>-- invalid data, use 'decodeUtf16LEWith'.</span>
<a name="line-411"></a><span class='hs-definition'>decodeUtf16LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-412"></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-413"></a><span class='hs-comment'>{-# INLINE decodeUtf16LE #-}</span>
<a name="line-414"></a>
<a name="line-415"></a><a name="decodeUtf16BEWith"></a><span class='hs-comment'>-- | Decode text from big endian UTF-16 encoding.</span>
<a name="line-416"></a><span class='hs-definition'>decodeUtf16BEWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-417"></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-418"></a><span class='hs-comment'>{-# INLINE decodeUtf16BEWith #-}</span>
<a name="line-419"></a>
<a name="line-420"></a><a name="decodeUtf16BE"></a><span class='hs-comment'>-- | Decode text from big endian UTF-16 encoding.</span>
<a name="line-421"></a><span class='hs-comment'>--</span>
<a name="line-422"></a><span class='hs-comment'>-- If the input contains any invalid big endian UTF-16 data, an</span>
<a name="line-423"></a><span class='hs-comment'>-- exception will be thrown.  For more control over the handling of</span>
<a name="line-424"></a><span class='hs-comment'>-- invalid data, use 'decodeUtf16BEWith'.</span>
<a name="line-425"></a><span class='hs-definition'>decodeUtf16BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-426"></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-427"></a><span class='hs-comment'>{-# INLINE decodeUtf16BE #-}</span>
<a name="line-428"></a>
<a name="line-429"></a><a name="encodeUtf16LE"></a><span class='hs-comment'>-- | Encode text using little endian UTF-16 encoding.</span>
<a name="line-430"></a><span class='hs-definition'>encodeUtf16LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-431"></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-432"></a><span class='hs-comment'>{-# INLINE encodeUtf16LE #-}</span>
<a name="line-433"></a>
<a name="line-434"></a><a name="encodeUtf16BE"></a><span class='hs-comment'>-- | Encode text using big endian UTF-16 encoding.</span>
<a name="line-435"></a><span class='hs-definition'>encodeUtf16BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-436"></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-437"></a><span class='hs-comment'>{-# INLINE encodeUtf16BE #-}</span>
<a name="line-438"></a>
<a name="line-439"></a><a name="decodeUtf32LEWith"></a><span class='hs-comment'>-- | Decode text from little endian UTF-32 encoding.</span>
<a name="line-440"></a><span class='hs-definition'>decodeUtf32LEWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-441"></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-442"></a><span class='hs-comment'>{-# INLINE decodeUtf32LEWith #-}</span>
<a name="line-443"></a>
<a name="line-444"></a><a name="decodeUtf32LE"></a><span class='hs-comment'>-- | Decode text from little endian UTF-32 encoding.</span>
<a name="line-445"></a><span class='hs-comment'>--</span>
<a name="line-446"></a><span class='hs-comment'>-- If the input contains any invalid little endian UTF-32 data, an</span>
<a name="line-447"></a><span class='hs-comment'>-- exception will be thrown.  For more control over the handling of</span>
<a name="line-448"></a><span class='hs-comment'>-- invalid data, use 'decodeUtf32LEWith'.</span>
<a name="line-449"></a><span class='hs-definition'>decodeUtf32LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-450"></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-451"></a><span class='hs-comment'>{-# INLINE decodeUtf32LE #-}</span>
<a name="line-452"></a>
<a name="line-453"></a><a name="decodeUtf32BEWith"></a><span class='hs-comment'>-- | Decode text from big endian UTF-32 encoding.</span>
<a name="line-454"></a><span class='hs-definition'>decodeUtf32BEWith</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>OnDecodeError</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-455"></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-456"></a><span class='hs-comment'>{-# INLINE decodeUtf32BEWith #-}</span>
<a name="line-457"></a>
<a name="line-458"></a><a name="decodeUtf32BE"></a><span class='hs-comment'>-- | Decode text from big endian UTF-32 encoding.</span>
<a name="line-459"></a><span class='hs-comment'>--</span>
<a name="line-460"></a><span class='hs-comment'>-- If the input contains any invalid big endian UTF-32 data, an</span>
<a name="line-461"></a><span class='hs-comment'>-- exception will be thrown.  For more control over the handling of</span>
<a name="line-462"></a><span class='hs-comment'>-- invalid data, use 'decodeUtf32BEWith'.</span>
<a name="line-463"></a><span class='hs-definition'>decodeUtf32BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Text</span>
<a name="line-464"></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-465"></a><span class='hs-comment'>{-# INLINE decodeUtf32BE #-}</span>
<a name="line-466"></a>
<a name="line-467"></a><a name="encodeUtf32LE"></a><span class='hs-comment'>-- | Encode text using little endian UTF-32 encoding.</span>
<a name="line-468"></a><span class='hs-definition'>encodeUtf32LE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-469"></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-470"></a><span class='hs-comment'>{-# INLINE encodeUtf32LE #-}</span>
<a name="line-471"></a>
<a name="line-472"></a><a name="encodeUtf32BE"></a><span class='hs-comment'>-- | Encode text using big endian UTF-32 encoding.</span>
<a name="line-473"></a><span class='hs-definition'>encodeUtf32BE</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Text</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteString</span>
<a name="line-474"></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-475"></a><span class='hs-comment'>{-# INLINE encodeUtf32BE #-}</span>
<a name="line-476"></a>
<a name="line-477"></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-478"></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'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CSize</span>
<a name="line-479"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</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>
<a name="line-480"></a>
<a name="line-481"></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_state"</span> <span class='hs-varid'>c_decode_utf8_with_state</span>
<a name="line-482"></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'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CSize</span>
<a name="line-483"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span>
<a name="line-484"></a>    <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>CodePoint</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>DecoderState</span> <span class='hs-keyglyph'>-&gt;</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>
<a name="line-485"></a>
<a name="line-486"></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_latin1"</span> <span class='hs-varid'>c_decode_latin1</span>
<a name="line-487"></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'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-488"></a>
<a name="line-489"></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_encode_utf8"</span> <span class='hs-varid'>c_encode_utf8</span>
<a name="line-490"></a>    <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>ByteArray</span><span class='hs-cpp'>#</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>CSize</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>CSize</span> <span class='hs-keyglyph'>-&gt;</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
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