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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/Control-Arrow-ArrowIO.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">hxt-9.3.1.15: A collection of tools for processing XML with Haskell.</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Copyright</th><td>Copyright (C) 2005 Uwe Schmidt</td></tr><tr><th>License</th><td>MIT</td></tr><tr><th>Maintainer</th><td>Uwe Schmidt (uwe\@fh-wedel.de)</td></tr><tr><th>Stability</th><td>experimental</td></tr><tr><th>Portability</th><td>portable</td></tr><tr><th>Safe Haskell</th><td>Safe</td></tr><tr><th>Language</th><td>Haskell98</td></tr></table><p class="caption">Control.Arrow.ArrowIO</p></div><div id="description"><p class="caption">Description</p><div class="doc"><p>Lifting of IO actions to arrows</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">class</span> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Control-Arrow.html#t:Arrow">Arrow</a> a => <a href="#t:ArrowIO">ArrowIO</a> a <span class="keyword">where</span><ul class="subs"><li><a href="#v:arrIO">arrIO</a> :: (b -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c) -> a b c</li><li><a href="#v:arrIO0">arrIO0</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c -> a b c</li><li><a href="#v:arrIO2">arrIO2</a> :: (b1 -> b2 -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c) -> a (b1, b2) c</li><li><a href="#v:arrIO3">arrIO3</a> :: (b1 -> b2 -> b3 -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c) -> a (b1, (b2, b3)) c</li><li><a href="#v:arrIO4">arrIO4</a> :: (b1 -> b2 -> b3 -> b4 -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c) -> a (b1, (b2, (b3, b4))) c</li></ul></li><li class="src short"><span class="keyword">class</span> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Control-Arrow.html#t:Arrow">Arrow</a> a, <a href="Control-Arrow-ArrowIO.html#t:ArrowIO">ArrowIO</a> a) => <a href="#t:ArrowIOIf">ArrowIOIf</a> a <span class="keyword">where</span><ul class="subs"><li><a href="#v:isIOA">isIOA</a> :: (b -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Bool.html#t:Bool">Bool</a>) -> a b b</li></ul></li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><span class="keyword">class</span> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Control-Arrow.html#t:Arrow">Arrow</a> a => <a name="t:ArrowIO" class="def">ArrowIO</a> a <span class="keyword">where</span> <a href="src/Control-Arrow-ArrowIO.html#ArrowIO" class="link">Source</a></p><div class="doc"><p>the interface for converting an IO action into an arrow</p></div><div class="subs minimal"><p class="caption">Minimal complete definition</p><p class="src"><a href="Control-Arrow-ArrowIO.html#v:arrIO">arrIO</a></p></div><div class="subs methods"><p class="caption">Methods</p><p class="src"><a name="v:arrIO" class="def">arrIO</a> :: (b -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c) -> a b c <a href="src/Control-Arrow-ArrowIO.html#arrIO" class="link">Source</a></p><div class="doc"><p>construct an arrow from an IO action</p></div><p class="src"><a name="v:arrIO0" class="def">arrIO0</a> :: <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c -> a b c <a href="src/Control-Arrow-ArrowIO.html#arrIO0" class="link">Source</a></p><div class="doc"><p>construct an arrow from an IO action without any parameter</p></div><p class="src"><a name="v:arrIO2" class="def">arrIO2</a> :: (b1 -> b2 -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c) -> a (b1, b2) c <a href="src/Control-Arrow-ArrowIO.html#arrIO2" class="link">Source</a></p><div class="doc"><p>construction of a 2 argument arrow from a binary IO action
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| example: <code> a1 &&& a2 >>> arr2 f </code></p></div><p class="src"><a name="v:arrIO3" class="def">arrIO3</a> :: (b1 -> b2 -> b3 -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c) -> a (b1, (b2, b3)) c <a href="src/Control-Arrow-ArrowIO.html#arrIO3" class="link">Source</a></p><div class="doc"><p>construction of a 3 argument arrow from a 3-ary IO action
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| example: <code> a1 &&& a2 &&& a3 >>> arr3 f </code></p></div><p class="src"><a name="v:arrIO4" class="def">arrIO4</a> :: (b1 -> b2 -> b3 -> b4 -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> c) -> a (b1, (b2, (b3, b4))) c <a href="src/Control-Arrow-ArrowIO.html#arrIO4" class="link">Source</a></p><div class="doc"><p>construction of a 4 argument arrow from a 4-ary IO action
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| example: <code> a1 &&& a2 &&& a3 &&& a4 >>> arr4 f </code></p></div></div><div class="subs instances"><p id="control.i:ArrowIO" class="caption collapser" onclick="toggleSection('i:ArrowIO')">Instances</p><div id="section.i:ArrowIO" class="show"><table><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Arrow-ArrowIO.html#t:ArrowIO">ArrowIO</a> <a href="Control-Arrow-IOListArrow.html#t:IOLA">IOLA</a></span> <a href="src/Control-Arrow-ArrowIO.html#line-120" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Arrow-ArrowIO.html#t:ArrowIO">ArrowIO</a> (<a href="Control-Arrow-IOStateListArrow.html#t:IOSLA">IOSLA</a> s)</span> <a href="src/Control-Arrow-ArrowIO.html#line-161" class="link">Source</a></td><td class="doc empty"> </td></tr></table></div></div></div><div class="top"><p class="src"><span class="keyword">class</span> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Control-Arrow.html#t:Arrow">Arrow</a> a, <a href="Control-Arrow-ArrowIO.html#t:ArrowIO">ArrowIO</a> a) => <a name="t:ArrowIOIf" class="def">ArrowIOIf</a> a <span class="keyword">where</span> <a href="src/Control-Arrow-ArrowIO.html#ArrowIOIf" class="link">Source</a></p><div class="doc"><p>the interface for converting an IO predicate into a list arrow</p></div><div class="subs methods"><p class="caption">Methods</p><p class="src"><a name="v:isIOA" class="def">isIOA</a> :: (b -> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/System-IO.html#t:IO">IO</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Bool.html#t:Bool">Bool</a>) -> a b b <a href="src/Control-Arrow-ArrowIO.html#isIOA" class="link">Source</a></p><div class="doc"><p>builds an arrow from an IO predicate</p><p>if the predicate holds, the single list containing the input is returned, else the empty list,
similar to <code><a href="Control-Arrow-ArrowList.html#v:isA">isA</a></code></p></div></div><div class="subs instances"><p id="control.i:ArrowIOIf" class="caption collapser" onclick="toggleSection('i:ArrowIOIf')">Instances</p><div id="section.i:ArrowIOIf" class="show"><table><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Arrow-ArrowIO.html#t:ArrowIOIf">ArrowIOIf</a> <a href="Control-Arrow-IOListArrow.html#t:IOLA">IOLA</a></span> <a href="src/Control-Arrow-ArrowIO.html#line-136" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Arrow-ArrowIO.html#t:ArrowIOIf">ArrowIOIf</a> (<a href="Control-Arrow-IOStateListArrow.html#t:IOSLA">IOSLA</a> s)</span> <a href="src/Control-Arrow-ArrowIO.html#line-177" class="link">Source</a></td><td class="doc empty"> </td></tr></table></div></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.16.1</p></div></body></html>
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