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<pre><a name="line-1"></a><span class='hs-comment'>{-# OPTIONS_GHC -XNoImplicitPrelude -funbox-strict-fields #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE BangPatterns #-}</span>
<a name="line-3"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-4"></a><span class='hs-comment'>-- |</span>
<a name="line-5"></a><span class='hs-comment'>-- Module : GHC.IO.Encoding.Latin1</span>
<a name="line-6"></a><span class='hs-comment'>-- Copyright : (c) The University of Glasgow, 2009</span>
<a name="line-7"></a><span class='hs-comment'>-- License : see libraries/base/LICENSE</span>
<a name="line-8"></a><span class='hs-comment'>-- </span>
<a name="line-9"></a><span class='hs-comment'>-- Maintainer : libraries@haskell.org</span>
<a name="line-10"></a><span class='hs-comment'>-- Stability : internal</span>
<a name="line-11"></a><span class='hs-comment'>-- Portability : non-portable</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- UTF-32 Codecs for the IO library</span>
<a name="line-14"></a><span class='hs-comment'>--</span>
<a name="line-15"></a><span class='hs-comment'>-- Portions Copyright : (c) Tom Harper 2008-2009,</span>
<a name="line-16"></a><span class='hs-comment'>-- (c) Bryan O'Sullivan 2009,</span>
<a name="line-17"></a><span class='hs-comment'>-- (c) Duncan Coutts 2009</span>
<a name="line-18"></a><span class='hs-comment'>--</span>
<a name="line-19"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Encoding</span><span class='hs-varop'>.</span><span class='hs-conid'>Latin1</span> <span class='hs-layout'>(</span>
<a name="line-22"></a> <span class='hs-varid'>latin1</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>latin1_checked</span><span class='hs-layout'>,</span>
<a name="line-24"></a> <span class='hs-varid'>latin1_decode</span><span class='hs-layout'>,</span>
<a name="line-25"></a> <span class='hs-varid'>latin1_encode</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>latin1_checked_encode</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-28"></a>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Base</span>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Real</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>Num</span>
<a name="line-32"></a><span class='hs-comment'>-- import GHC.IO</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Exception</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Buffer</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span><span class='hs-varop'>.</span><span class='hs-conid'>Encoding</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Maybe</span>
<a name="line-37"></a>
<a name="line-38"></a><span class='hs-comment'>-- -----------------------------------------------------------------------------</span>
<a name="line-39"></a><span class='hs-comment'>-- Latin1</span>
<a name="line-40"></a>
<a name="line-41"></a><a name="latin1"></a><span class='hs-definition'>latin1</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TextEncoding</span>
<a name="line-42"></a><span class='hs-definition'>latin1</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TextEncoding</span> <span class='hs-layout'>{</span> <span class='hs-varid'>textEncodingName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"ISO8859-1"</span><span class='hs-layout'>,</span>
<a name="line-43"></a> <span class='hs-varid'>mkTextDecoder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>latin1_DF</span><span class='hs-layout'>,</span>
<a name="line-44"></a> <span class='hs-varid'>mkTextEncoder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>latin1_EF</span> <span class='hs-layout'>}</span>
<a name="line-45"></a>
<a name="line-46"></a><a name="latin1_DF"></a><span class='hs-definition'>latin1_DF</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextDecoder</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-47"></a><span class='hs-definition'>latin1_DF</span> <span class='hs-keyglyph'>=</span>
<a name="line-48"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>BufferCodec</span> <span class='hs-layout'>{</span>
<a name="line-49"></a> <span class='hs-varid'>encode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>latin1_decode</span><span class='hs-layout'>,</span>
<a name="line-50"></a> <span class='hs-varid'>close</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>,</span>
<a name="line-51"></a> <span class='hs-varid'>getState</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>,</span>
<a name="line-52"></a> <span class='hs-varid'>setState</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-53"></a> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-54"></a>
<a name="line-55"></a><a name="latin1_EF"></a><span class='hs-definition'>latin1_EF</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextEncoder</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-56"></a><span class='hs-definition'>latin1_EF</span> <span class='hs-keyglyph'>=</span>
<a name="line-57"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>BufferCodec</span> <span class='hs-layout'>{</span>
<a name="line-58"></a> <span class='hs-varid'>encode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>latin1_encode</span><span class='hs-layout'>,</span>
<a name="line-59"></a> <span class='hs-varid'>close</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>,</span>
<a name="line-60"></a> <span class='hs-varid'>getState</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>,</span>
<a name="line-61"></a> <span class='hs-varid'>setState</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-62"></a> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="latin1_checked"></a><span class='hs-definition'>latin1_checked</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>TextEncoding</span>
<a name="line-65"></a><span class='hs-definition'>latin1_checked</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TextEncoding</span> <span class='hs-layout'>{</span> <span class='hs-varid'>textEncodingName</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"ISO8859-1(checked)"</span><span class='hs-layout'>,</span>
<a name="line-66"></a> <span class='hs-varid'>mkTextDecoder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>latin1_DF</span><span class='hs-layout'>,</span>
<a name="line-67"></a> <span class='hs-varid'>mkTextEncoder</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>latin1_checked_EF</span> <span class='hs-layout'>}</span>
<a name="line-68"></a>
<a name="line-69"></a><a name="latin1_checked_EF"></a><span class='hs-definition'>latin1_checked_EF</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextEncoder</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span>
<a name="line-70"></a><span class='hs-definition'>latin1_checked_EF</span> <span class='hs-keyglyph'>=</span>
<a name="line-71"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>BufferCodec</span> <span class='hs-layout'>{</span>
<a name="line-72"></a> <span class='hs-varid'>encode</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>latin1_checked_encode</span><span class='hs-layout'>,</span>
<a name="line-73"></a> <span class='hs-varid'>close</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>,</span>
<a name="line-74"></a> <span class='hs-varid'>getState</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span><span class='hs-layout'>,</span>
<a name="line-75"></a> <span class='hs-varid'>setState</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>const</span> <span class='hs-varop'>$</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-76"></a> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-77"></a>
<a name="line-78"></a>
<a name="line-79"></a><a name="latin1_decode"></a><span class='hs-definition'>latin1_decode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DecodeBuffer</span>
<a name="line-80"></a><span class='hs-definition'>latin1_decode</span>
<a name="line-81"></a> <span class='hs-varid'>input</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Buffer</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufRaw</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>iraw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ir0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>iw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufSize</span><span class='hs-keyglyph'>=</span><span class='hs-keyword'>_</span> <span class='hs-layout'>}</span>
<a name="line-82"></a> <span class='hs-varid'>output</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Buffer</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufRaw</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>oraw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ow0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufSize</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>os</span> <span class='hs-layout'>}</span>
<a name="line-83"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-84"></a> <span class='hs-varid'>loop</span> <span class='hs-varop'>!</span><span class='hs-varid'>ir</span> <span class='hs-varop'>!</span><span class='hs-varid'>ow</span>
<a name="line-85"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>ow</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>os</span> <span class='hs-varop'>||</span> <span class='hs-varid'>ir</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>iw</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>done</span> <span class='hs-varid'>ir</span> <span class='hs-varid'>ow</span>
<a name="line-86"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-87"></a> <span class='hs-varid'>c0</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readWord8Buf</span> <span class='hs-varid'>iraw</span> <span class='hs-varid'>ir</span>
<a name="line-88"></a> <span class='hs-varid'>ow'</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>writeCharBuf</span> <span class='hs-varid'>oraw</span> <span class='hs-varid'>ow</span> <span class='hs-layout'>(</span><span class='hs-varid'>unsafeChr</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>c0</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-89"></a> <span class='hs-varid'>loop</span> <span class='hs-layout'>(</span><span class='hs-varid'>ir</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-varid'>ow'</span>
<a name="line-90"></a>
<a name="line-91"></a> <span class='hs-comment'>-- lambda-lifted, to avoid thunks being built in the inner-loop:</span>
<a name="line-92"></a> <span class='hs-varid'>done</span> <span class='hs-varop'>!</span><span class='hs-varid'>ir</span> <span class='hs-varop'>!</span><span class='hs-varid'>ow</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>ir</span> <span class='hs-varop'>==</span> <span class='hs-varid'>iw</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>input</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-num'>0</span> <span class='hs-layout'>}</span>
<a name="line-93"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>input</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ir</span> <span class='hs-layout'>}</span><span class='hs-layout'>,</span>
<a name="line-94"></a> <span class='hs-varid'>output</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ow</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-95"></a> <span class='hs-keyword'>in</span>
<a name="line-96"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>ir0</span> <span class='hs-varid'>ow0</span>
<a name="line-97"></a>
<a name="line-98"></a><a name="latin1_encode"></a><span class='hs-definition'>latin1_encode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>EncodeBuffer</span>
<a name="line-99"></a><span class='hs-definition'>latin1_encode</span>
<a name="line-100"></a> <span class='hs-varid'>input</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Buffer</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufRaw</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>iraw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ir0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>iw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufSize</span><span class='hs-keyglyph'>=</span><span class='hs-keyword'>_</span> <span class='hs-layout'>}</span>
<a name="line-101"></a> <span class='hs-varid'>output</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Buffer</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufRaw</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>oraw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ow0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufSize</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>os</span> <span class='hs-layout'>}</span>
<a name="line-102"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-103"></a> <span class='hs-varid'>done</span> <span class='hs-varop'>!</span><span class='hs-varid'>ir</span> <span class='hs-varop'>!</span><span class='hs-varid'>ow</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>ir</span> <span class='hs-varop'>==</span> <span class='hs-varid'>iw</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>input</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-num'>0</span> <span class='hs-layout'>}</span>
<a name="line-104"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>input</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ir</span> <span class='hs-layout'>}</span><span class='hs-layout'>,</span>
<a name="line-105"></a> <span class='hs-varid'>output</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ow</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-106"></a> <span class='hs-varid'>loop</span> <span class='hs-varop'>!</span><span class='hs-varid'>ir</span> <span class='hs-varop'>!</span><span class='hs-varid'>ow</span>
<a name="line-107"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>ow</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>os</span> <span class='hs-varop'>||</span> <span class='hs-varid'>ir</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>iw</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>done</span> <span class='hs-varid'>ir</span> <span class='hs-varid'>ow</span>
<a name="line-108"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-109"></a> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span><span class='hs-varid'>ir'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readCharBuf</span> <span class='hs-varid'>iraw</span> <span class='hs-varid'>ir</span>
<a name="line-110"></a> <span class='hs-varid'>writeWord8Buf</span> <span class='hs-varid'>oraw</span> <span class='hs-varid'>ow</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>ord</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-111"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>ir'</span> <span class='hs-layout'>(</span><span class='hs-varid'>ow</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-112"></a> <span class='hs-keyword'>in</span>
<a name="line-113"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>ir0</span> <span class='hs-varid'>ow0</span>
<a name="line-114"></a>
<a name="line-115"></a><a name="latin1_checked_encode"></a><span class='hs-definition'>latin1_checked_encode</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>EncodeBuffer</span>
<a name="line-116"></a><span class='hs-definition'>latin1_checked_encode</span>
<a name="line-117"></a> <span class='hs-varid'>input</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Buffer</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufRaw</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>iraw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ir0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>iw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufSize</span><span class='hs-keyglyph'>=</span><span class='hs-keyword'>_</span> <span class='hs-layout'>}</span>
<a name="line-118"></a> <span class='hs-varid'>output</span><span class='hs-keyglyph'>@</span><span class='hs-conid'>Buffer</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufRaw</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>oraw</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-keyword'>_</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ow0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufSize</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>os</span> <span class='hs-layout'>}</span>
<a name="line-119"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span>
<a name="line-120"></a> <span class='hs-varid'>done</span> <span class='hs-varop'>!</span><span class='hs-varid'>ir</span> <span class='hs-varop'>!</span><span class='hs-varid'>ow</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-keyword'>if</span> <span class='hs-varid'>ir</span> <span class='hs-varop'>==</span> <span class='hs-varid'>iw</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>input</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-num'>0</span><span class='hs-layout'>,</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-num'>0</span> <span class='hs-layout'>}</span>
<a name="line-121"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>input</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufL</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ir</span> <span class='hs-layout'>}</span><span class='hs-layout'>,</span>
<a name="line-122"></a> <span class='hs-varid'>output</span><span class='hs-layout'>{</span> <span class='hs-varid'>bufR</span><span class='hs-keyglyph'>=</span><span class='hs-varid'>ow</span> <span class='hs-layout'>}</span><span class='hs-layout'>)</span>
<a name="line-123"></a> <span class='hs-varid'>loop</span> <span class='hs-varop'>!</span><span class='hs-varid'>ir</span> <span class='hs-varop'>!</span><span class='hs-varid'>ow</span>
<a name="line-124"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>ow</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>os</span> <span class='hs-varop'>||</span> <span class='hs-varid'>ir</span> <span class='hs-varop'>>=</span> <span class='hs-varid'>iw</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>done</span> <span class='hs-varid'>ir</span> <span class='hs-varid'>ow</span>
<a name="line-125"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-126"></a> <span class='hs-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span><span class='hs-varid'>ir'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>readCharBuf</span> <span class='hs-varid'>iraw</span> <span class='hs-varid'>ir</span>
<a name="line-127"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>ord</span> <span class='hs-varid'>c</span> <span class='hs-varop'>></span> <span class='hs-num'>0xff</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>invalid</span> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-128"></a> <span class='hs-varid'>writeWord8Buf</span> <span class='hs-varid'>oraw</span> <span class='hs-varid'>ow</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-layout'>(</span><span class='hs-varid'>ord</span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-129"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>ir'</span> <span class='hs-layout'>(</span><span class='hs-varid'>ow</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-130"></a> <span class='hs-keyword'>where</span>
<a name="line-131"></a> <span class='hs-varid'>invalid</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>ir</span> <span class='hs-varop'>></span> <span class='hs-varid'>ir0</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>done</span> <span class='hs-varid'>ir</span> <span class='hs-varid'>ow</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>ioe_encodingError</span>
<a name="line-132"></a> <span class='hs-keyword'>in</span>
<a name="line-133"></a> <span class='hs-varid'>loop</span> <span class='hs-varid'>ir0</span> <span class='hs-varid'>ow0</span>
<a name="line-134"></a>
<a name="line-135"></a><a name="ioe_encodingError"></a><span class='hs-definition'>ioe_encodingError</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span>
<a name="line-136"></a><span class='hs-definition'>ioe_encodingError</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ioException</span>
<a name="line-137"></a> <span class='hs-layout'>(</span><span class='hs-conid'>IOError</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>InvalidArgument</span> <span class='hs-str'>"latin1_checked_encode"</span>
<a name="line-138"></a> <span class='hs-str'>"character is out of range for this encoding"</span> <span class='hs-conid'>Nothing</span> <span class='hs-conid'>Nothing</span><span class='hs-layout'>)</span>
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