<!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>Data.String</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">base-4.5.1.0: Basic libraries</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Portability</th><td>portable</td></tr><tr><th>Stability</th><td>experimental</td></tr><tr><th>Maintainer</th><td>libraries@haskell.org</td></tr><tr><th>Safe Haskell</th><td>Trustworthy</td></tr></table><p class="caption">Data.String</p></div><div id="table-of-contents"><p class="caption">Contents</p><ul><li><a href="#g:1">Functions on strings
</a></li></ul></div><div id="description"><p class="caption">Description</p><div class="doc"><p>The <code>String</code> type and associated operations.
</p></div></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">type</span> <a href="#t:String">String</a> = [<a href="Data-Char.html#t:Char">Char</a>]</li><li class="src short"><span class="keyword">class</span> <a href="#t:IsString">IsString</a> a <span class="keyword">where</span><ul class="subs"><li><a href="#v:fromString">fromString</a> :: <a href="Data-String.html#t:String">String</a> -> a</li></ul></li><li class="src short"><a href="#v:lines">lines</a> :: <a href="Data-String.html#t:String">String</a> -> [<a href="Data-String.html#t:String">String</a>]</li><li class="src short"><a href="#v:words">words</a> :: <a href="Data-String.html#t:String">String</a> -> [<a href="Data-String.html#t:String">String</a>]</li><li class="src short"><a href="#v:unlines">unlines</a> :: [<a href="Data-String.html#t:String">String</a>] -> <a href="Data-String.html#t:String">String</a></li><li class="src short"><a href="#v:unwords">unwords</a> :: [<a href="Data-String.html#t:String">String</a>] -> <a href="Data-String.html#t:String">String</a></li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><span class="keyword">type</span> <a name="t:String" class="def">String</a> = [<a href="Data-Char.html#t:Char">Char</a>]</p><div class="doc"><p>A <code><a href="Data-String.html#t:String">String</a></code> is a list of characters. String constants in Haskell are values
of type <code><a href="Data-String.html#t:String">String</a></code>.
</p></div></div><div class="top"><p class="src"><span class="keyword">class</span> <a name="t:IsString" class="def">IsString</a> a <span class="keyword">where</span></p><div class="doc"><p>Class for string-like datastructures; used by the overloaded string
extension (-foverloaded-strings in GHC).
</p></div><div class="subs methods"><p class="caption">Methods</p><p class="src"><a name="v:fromString" class="def">fromString</a> :: <a href="Data-String.html#t:String">String</a> -> a</p></div><div class="subs instances"><p id="control.i:IsString" class="caption collapser" onclick="toggleSection('i:IsString')">Instances</p><div id="section.i:IsString" class="show"><table><tr><td class="src"><a href="Data-String.html#t:IsString">IsString</a> [<a href="Data-Char.html#t:Char">Char</a>]</td><td class="doc empty"> </td></tr></table></div></div></div><h1 id="g:1">Functions on strings
</h1><div class="top"><p class="src"><a name="v:lines" class="def">lines</a> :: <a href="Data-String.html#t:String">String</a> -> [<a href="Data-String.html#t:String">String</a>]</p><div class="doc"><p><code><a href="Data-String.html#v:lines">lines</a></code> breaks a string up into a list of strings at newline
characters. The resulting strings do not contain newlines.
</p></div></div><div class="top"><p class="src"><a name="v:words" class="def">words</a> :: <a href="Data-String.html#t:String">String</a> -> [<a href="Data-String.html#t:String">String</a>]</p><div class="doc"><p><code><a href="Data-String.html#v:words">words</a></code> breaks a string up into a list of words, which were delimited
by white space.
</p></div></div><div class="top"><p class="src"><a name="v:unlines" class="def">unlines</a> :: [<a href="Data-String.html#t:String">String</a>] -> <a href="Data-String.html#t:String">String</a></p><div class="doc"><p><code><a href="Data-String.html#v:unlines">unlines</a></code> is an inverse operation to <code><a href="Data-String.html#v:lines">lines</a></code>.
It joins lines, after appending a terminating newline to each.
</p></div></div><div class="top"><p class="src"><a name="v:unwords" class="def">unwords</a> :: [<a href="Data-String.html#t:String">String</a>] -> <a href="Data-String.html#t:String">String</a></p><div class="doc"><p><code><a href="Data-String.html#v:unwords">unwords</a></code> is an inverse operation to <code><a href="Data-String.html#v:words">words</a></code>.
It joins words with separating spaces.
</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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