<?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://www.cs.york.ac.uk/fp/darcs/hscolour/ --> <title>Hledger/Data/UTF8.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></a><span class='hs-comment'>{- <a name="line-2"></a>From pandoc, slightly extended. <a name="line-3"></a> <a name="line-4"></a>---------------------------------------------------------------------- <a name="line-5"></a>Copyright (C) 2010 John MacFarlane <jgm@berkeley.edu> <a name="line-6"></a> <a name="line-7"></a>This program is free software; you can redistribute it and/or modify <a name="line-8"></a>it under the terms of the GNU General Public License as published by <a name="line-9"></a>the Free Software Foundation; either version 2 of the License, or <a name="line-10"></a>(at your option) any later version. <a name="line-11"></a> <a name="line-12"></a>This program is distributed in the hope that it will be useful, <a name="line-13"></a>but WITHOUT ANY WARRANTY; without even the implied warranty of <a name="line-14"></a>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the <a name="line-15"></a>GNU General Public License for more details. <a name="line-16"></a> <a name="line-17"></a>You should have received a copy of the GNU General Public License <a name="line-18"></a>along with this program; if not, write to the Free Software <a name="line-19"></a>Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA <a name="line-20"></a>-}</span> <a name="line-21"></a> <a name="line-22"></a><span class='hs-comment'>{- | <a name="line-23"></a> Module : Text.Pandoc.UTF8 <a name="line-24"></a> Copyright : Copyright (C) 2010 John MacFarlane <a name="line-25"></a> License : GNU GPL, version 2 or above <a name="line-26"></a> <a name="line-27"></a> Maintainer : John MacFarlane <jgm@berkeley.edu> <a name="line-28"></a> Stability : alpha <a name="line-29"></a> Portability : portable <a name="line-30"></a> <a name="line-31"></a>UTF-8 aware string IO functions that will work with GHC 6.10 or 6.12. <a name="line-32"></a>-}</span> <a name="line-33"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Hledger</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>UTF8</span> <span class='hs-layout'>(</span> <span class='hs-varid'>readFile</span> <a name="line-34"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>writeFile</span> <a name="line-35"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>appendFile</span> <a name="line-36"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>getContents</span> <a name="line-37"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>hGetContents</span> <a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>putStr</span> <a name="line-39"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>putStrLn</span> <a name="line-40"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>hPutStr</span> <a name="line-41"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>hPutStrLn</span> <a name="line-42"></a> <span class='hs-layout'>)</span> <a name="line-43"></a> <a name="line-44"></a><span class='hs-keyword'>where</span> <a name="line-45"></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'>Lazy</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span> <a name="line-46"></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'>Lazy</span><span class='hs-varop'>.</span><span class='hs-conid'>UTF8</span> <span class='hs-layout'>(</span><span class='hs-varid'>toString</span><span class='hs-layout'>,</span> <span class='hs-varid'>fromString</span><span class='hs-layout'>)</span> <a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>readFile</span><span class='hs-layout'>,</span> <span class='hs-varid'>writeFile</span><span class='hs-layout'>,</span> <span class='hs-varid'>appendFile</span><span class='hs-layout'>,</span> <span class='hs-varid'>getContents</span><span class='hs-layout'>,</span> <span class='hs-varid'>putStr</span><span class='hs-layout'>,</span> <span class='hs-varid'>putStrLn</span><span class='hs-layout'>)</span> <a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Handle</span><span class='hs-layout'>)</span> <a name="line-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span><span class='hs-layout'>)</span> <a name="line-50"></a> <a name="line-51"></a><a name="bom"></a><span class='hs-definition'>bom</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <a name="line-52"></a><span class='hs-definition'>bom</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-keyglyph'>[</span><span class='hs-num'>0xEF</span><span class='hs-layout'>,</span> <span class='hs-num'>0xBB</span><span class='hs-layout'>,</span> <span class='hs-num'>0xBF</span><span class='hs-keyglyph'>]</span> <a name="line-53"></a> <a name="line-54"></a><a name="stripBOM"></a><span class='hs-definition'>stripBOM</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <a name="line-55"></a><span class='hs-definition'>stripBOM</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>bom</span> <span class='hs-varop'>`</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>isPrefixOf</span><span class='hs-varop'>`</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-num'>3</span> <span class='hs-varid'>s</span> <a name="line-56"></a><span class='hs-definition'>stripBOM</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>s</span> <a name="line-57"></a> <a name="line-58"></a><a name="readFile"></a><span class='hs-definition'>readFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>String</span> <a name="line-59"></a><span class='hs-definition'>readFile</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-layout'>(</span><span class='hs-varid'>toString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>stripBOM</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>readFile</span> <a name="line-60"></a> <a name="line-61"></a><a name="writeFile"></a><span class='hs-definition'>writeFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-62"></a><span class='hs-definition'>writeFile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>writeFile</span> <span class='hs-varid'>f</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromString</span> <a name="line-63"></a> <a name="line-64"></a><a name="appendFile"></a><span class='hs-definition'>appendFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-65"></a><span class='hs-definition'>appendFile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>appendFile</span> <span class='hs-varid'>f</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromString</span> <a name="line-66"></a> <a name="line-67"></a><a name="getContents"></a><span class='hs-definition'>getContents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>String</span> <a name="line-68"></a><span class='hs-definition'>getContents</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-layout'>(</span><span class='hs-varid'>toString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>stripBOM</span><span class='hs-layout'>)</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>getContents</span> <a name="line-69"></a> <a name="line-70"></a><a name="hGetContents"></a><span class='hs-definition'>hGetContents</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Handle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>String</span> <a name="line-71"></a><span class='hs-definition'>hGetContents</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-layout'>(</span><span class='hs-varid'>toString</span> <span class='hs-varop'>.</span> <span class='hs-varid'>stripBOM</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>hGetContents</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <a name="line-72"></a> <a name="line-73"></a><a name="putStr"></a><span class='hs-definition'>putStr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-74"></a><span class='hs-definition'>putStr</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>putStr</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromString</span> <a name="line-75"></a> <a name="line-76"></a><a name="putStrLn"></a><span class='hs-definition'>putStrLn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-77"></a><span class='hs-definition'>putStrLn</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>putStrLn</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromString</span> <a name="line-78"></a> <a name="line-79"></a><a name="hPutStr"></a><span class='hs-definition'>hPutStr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Handle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-80"></a><span class='hs-definition'>hPutStr</span> <span class='hs-varid'>h</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-varid'>hPutStr</span> <span class='hs-varid'>h</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromString</span> <a name="line-81"></a> <a name="line-82"></a><a name="hPutStrLn"></a><span class='hs-definition'>hPutStrLn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Handle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span> <a name="line-83"></a><span class='hs-definition'>hPutStrLn</span> <span class='hs-varid'>h</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hPutStr</span> <span class='hs-varid'>h</span> <span class='hs-layout'>(</span><span class='hs-varid'>s</span> <span class='hs-varop'>++</span> <span class='hs-str'>"\n"</span><span class='hs-layout'>)</span> </pre></body> </html>