<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>StringBuffer</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">ghc-7.4.2: The GHC API</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Safe Haskell</th><td>None</td></tr></table><p class="caption">StringBuffer</p></div><div id="table-of-contents"><p class="caption">Contents</p><ul><li><a href="#g:1">Creation/destruction
</a></li><li><a href="#g:2">Inspection
</a></li><li><a href="#g:3">Moving and comparison
</a></li><li><a href="#g:4">Conversion
</a></li><li><a href="#g:5">Parsing integers
</a></li></ul></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><span class="keyword">data</span> <a href="#t:StringBuffer">StringBuffer</a> = <a href="#v:StringBuffer">StringBuffer</a> {<ul class="subs"><li><a href="#v:buf">buf</a> :: !(<a href="../base-4.5.1.0/Foreign-ForeignPtr-Safe.html#t:ForeignPtr">ForeignPtr</a> <a href="../base-4.5.1.0/Data-Word.html#t:Word8">Word8</a>)</li><li><a href="#v:len">len</a> :: !<a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a></li><li><a href="#v:cur">cur</a> :: !<a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a></li></ul>}</li><li class="src short"><a href="#v:hGetStringBuffer">hGetStringBuffer</a> :: <a href="../base-4.5.1.0/System-IO.html#t:FilePath">FilePath</a> -> <a href="../base-4.5.1.0/System-IO.html#t:IO">IO</a> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></li><li class="src short"><a href="#v:hGetStringBufferBlock">hGetStringBufferBlock</a> :: <a href="../base-4.5.1.0/GHC-IO-Handle.html#t:Handle">Handle</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="../base-4.5.1.0/System-IO.html#t:IO">IO</a> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></li><li class="src short"><a href="#v:appendStringBuffers">appendStringBuffers</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/System-IO.html#t:IO">IO</a> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></li><li class="src short"><a href="#v:stringToStringBuffer">stringToStringBuffer</a> :: <a href="../base-4.5.1.0/Data-String.html#t:String">String</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></li><li class="src short"><a href="#v:nextChar">nextChar</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> (<a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a>, <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a>)</li><li class="src short"><a href="#v:currentChar">currentChar</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a></li><li class="src short"><a href="#v:prevChar">prevChar</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a> -> <a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a></li><li class="src short"><a href="#v:atEnd">atEnd</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Bool.html#t:Bool">Bool</a></li><li class="src short"><a href="#v:stepOn">stepOn</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></li><li class="src short"><a href="#v:offsetBytes">offsetBytes</a> :: <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></li><li class="src short"><a href="#v:byteDiff">byteDiff</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a></li><li class="src short"><a href="#v:lexemeToString">lexemeToString</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="../base-4.5.1.0/Data-String.html#t:String">String</a></li><li class="src short"><a href="#v:lexemeToFastString">lexemeToFastString</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="FastString.html#t:FastString">FastString</a></li><li class="src short"><a href="#v:parseUnsignedInteger">parseUnsignedInteger</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="../base-4.5.1.0/Prelude.html#t:Integer">Integer</a> -> (<a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a>) -> <a href="../base-4.5.1.0/Prelude.html#t:Integer">Integer</a></li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><span class="keyword">data</span> <a name="t:StringBuffer" class="def">StringBuffer</a> </p><div class="doc"><p>A StringBuffer is an internal pointer to a sized chunk of bytes.
The bytes are intended to be *immutable*. There are pure
operations to read the contents of a StringBuffer.
</p><p>A StringBuffer may have a finalizer, depending on how it was
obtained.
</p></div><div class="subs constructors"><p class="caption">Constructors</p><table><tr><td class="src"><a name="v:StringBuffer" class="def">StringBuffer</a></td><td class="doc empty"> </td></tr><tr><td colspan="2"><div class="subs fields"><p class="caption">Fields</p><dl><dt class="src"><a name="v:buf" class="def">buf</a> :: !(<a href="../base-4.5.1.0/Foreign-ForeignPtr-Safe.html#t:ForeignPtr">ForeignPtr</a> <a href="../base-4.5.1.0/Data-Word.html#t:Word8">Word8</a>)</dt><dd class="doc empty"> </dd><dt class="src"><a name="v:len" class="def">len</a> :: !<a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a></dt><dd class="doc empty"> </dd><dt class="src"><a name="v:cur" class="def">cur</a> :: !<a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a></dt><dd class="doc empty"> </dd></dl><div class="clear"></div></div></td></tr></table></div><div class="subs instances"><p id="control.i:StringBuffer" class="caption collapser" onclick="toggleSection('i:StringBuffer')">Instances</p><div id="section.i:StringBuffer" class="show"><table><tr><td class="src"><a href="../base-4.5.1.0/Text-Show.html#t:Show">Show</a> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></td><td class="doc empty"> </td></tr></table></div></div></div><h1 id="g:1">Creation/destruction
</h1><div class="top"><p class="src"><a name="v:hGetStringBuffer" class="def">hGetStringBuffer</a> :: <a href="../base-4.5.1.0/System-IO.html#t:FilePath">FilePath</a> -> <a href="../base-4.5.1.0/System-IO.html#t:IO">IO</a> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></p></div><div class="top"><p class="src"><a name="v:hGetStringBufferBlock" class="def">hGetStringBufferBlock</a> :: <a href="../base-4.5.1.0/GHC-IO-Handle.html#t:Handle">Handle</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="../base-4.5.1.0/System-IO.html#t:IO">IO</a> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></p></div><div class="top"><p class="src"><a name="v:appendStringBuffers" class="def">appendStringBuffers</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/System-IO.html#t:IO">IO</a> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></p></div><div class="top"><p class="src"><a name="v:stringToStringBuffer" class="def">stringToStringBuffer</a> :: <a href="../base-4.5.1.0/Data-String.html#t:String">String</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></p></div><h1 id="g:2">Inspection
</h1><div class="top"><p class="src"><a name="v:nextChar" class="def">nextChar</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> (<a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a>, <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a>)</p></div><div class="top"><p class="src"><a name="v:currentChar" class="def">currentChar</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a></p></div><div class="top"><p class="src"><a name="v:prevChar" class="def">prevChar</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a> -> <a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a></p></div><div class="top"><p class="src"><a name="v:atEnd" class="def">atEnd</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Bool.html#t:Bool">Bool</a></p></div><h1 id="g:3">Moving and comparison
</h1><div class="top"><p class="src"><a name="v:stepOn" class="def">stepOn</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></p></div><div class="top"><p class="src"><a name="v:offsetBytes" class="def">offsetBytes</a> :: <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a></p></div><div class="top"><p class="src"><a name="v:byteDiff" class="def">byteDiff</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a></p></div><h1 id="g:4">Conversion
</h1><div class="top"><p class="src"><a name="v:lexemeToString" class="def">lexemeToString</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="../base-4.5.1.0/Data-String.html#t:String">String</a></p></div><div class="top"><p class="src"><a name="v:lexemeToFastString" class="def">lexemeToFastString</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="FastString.html#t:FastString">FastString</a></p></div><h1 id="g:5">Parsing integers
</h1><div class="top"><p class="src"><a name="v:parseUnsignedInteger" class="def">parseUnsignedInteger</a> :: <a href="StringBuffer.html#t:StringBuffer">StringBuffer</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a> -> <a href="../base-4.5.1.0/Prelude.html#t:Integer">Integer</a> -> (<a href="../base-4.5.1.0/Data-Char.html#t:Char">Char</a> -> <a href="../base-4.5.1.0/Data-Int.html#t:Int">Int</a>) -> <a href="../base-4.5.1.0/Prelude.html#t:Integer">Integer</a></p><div class="doc"><p>XXX assumes ASCII digits only (by using byteOff)
</p></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.11.0</p></div></body></html>
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