<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--Rendered using the Haskell Html Library v0.2--> <HTML ><HEAD ><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8" ><TITLE >Control.Arrow.IOStateListArrow</TITLE ><LINK HREF="haddock.css" REL="stylesheet" TYPE="text/css" ><SCRIPT SRC="haddock-util.js" TYPE="text/javascript" ></SCRIPT ><SCRIPT TYPE="text/javascript" >window.onload = function () {setSynopsis("mini_Control-Arrow-IOStateListArrow.html")};</SCRIPT ></HEAD ><BODY ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="topbar" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD ><IMG SRC="haskell_icon.gif" WIDTH="16" HEIGHT="16" ALT=" " ></TD ><TD CLASS="title" >hxt-8.3.2: A collection of tools for processing XML with Haskell.</TD ><TD CLASS="topbut" ><A HREF="index.html" >Contents</A ></TD ><TD CLASS="topbut" ><A HREF="doc-index.html" >Index</A ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="modulebar" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD ><FONT SIZE="6" >Control.Arrow.IOStateListArrow</FONT ></TD ><TD ALIGN="right" ><TABLE CLASS="narrow" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="infohead" >Portability</TD ><TD CLASS="infoval" >portable</TD ></TR ><TR ><TD CLASS="infohead" >Stability</TD ><TD CLASS="infoval" >experimental</TD ></TR ><TR ><TD CLASS="infohead" >Maintainer</TD ><TD CLASS="infoval" >Uwe Schmidt (uwe\@fh-wedel.de)</TD ></TR ></TABLE ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" >Description</TD ></TR ><TR ><TD CLASS="doc" >Implementation of arrows with IO and a state </TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" >Synopsis</TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="decl" ><SPAN CLASS="keyword" >newtype</SPAN > <A HREF="#t%3AIOSLA" >IOSLA</A > s a b = <A HREF="#v%3AIOSLA" >IOSLA</A > {<TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="recfield" ><A HREF="#v%3ArunIOSLA" >runIOSLA</A > :: s -> a -> <A HREF="/usr/share/doc/ghc/libraries/base/System-IO.html#t%3AIO" >IO</A > (s, [b])</TD ></TR ></TABLE >}</TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AliftSt" >liftSt</A > :: <A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s1 b c -> <A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > (s1, s2) b c</TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3ArunSt" >runSt</A > :: s2 -> <A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > (s1, s2) b c -> <A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s1 b c</TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="section1" >Documentation</TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><SPAN CLASS="keyword" >newtype</SPAN > <A NAME="t:IOSLA" ><A NAME="t%3AIOSLA" ></A ></A ><B >IOSLA</B > s a b </TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="ndoc" >list arrow combined with a state and the IO monad </TD ></TR ><TR ><TD CLASS="section4" >Constructors</TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="5" CELLPADDING="0" ><TR ><TD CLASS="arg" ><A NAME="v:IOSLA" ><A NAME="v%3AIOSLA" ></A ></A ><B >IOSLA</B ></TD ><TD CLASS="rdoc" ></TD ></TR ><TR ><TD CLASS="body" COLSPAN="2" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="arg" ><A NAME="v:runIOSLA" ><A NAME="v%3ArunIOSLA" ></A ></A ><B >runIOSLA</B > :: s -> a -> <A HREF="/usr/share/doc/ghc/libraries/base/System-IO.html#t%3AIO" >IO</A > (s, [b])</TD ><TD CLASS="rdoc" ></TD ></TR ></TABLE ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:IOSLA')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:IOSLA" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="Control-Arrow-ArrowState.html#t%3AArrowState" >ArrowState</A > s (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/libraries/base/Control-Arrow.html#t%3AArrow" >Arrow</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/libraries/base/Control-Arrow.html#t%3AArrowZero" >ArrowZero</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/libraries/base/Control-Arrow.html#t%3AArrowPlus" >ArrowPlus</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/libraries/base/Control-Arrow.html#t%3AArrowChoice" >ArrowChoice</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/libraries/base/Control-Arrow.html#t%3AArrowApply" >ArrowApply</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/libraries/base/Control-Category.html#t%3ACategory" >Category</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/libraries/parallel/Control-Parallel-Strategies.html#t%3ANFData" >NFData</A > s => <A HREF="Control-Arrow-ArrowNF.html#t%3AArrowNF" >ArrowNF</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Arrow-ArrowList.html#t%3AArrowList" >ArrowList</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Arrow-ArrowIf.html#t%3AArrowIf" >ArrowIf</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Arrow-ArrowTree.html#t%3AArrowTree" >ArrowTree</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Arrow-ArrowIO.html#t%3AArrowIOIf" >ArrowIOIf</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Control-Arrow-ArrowIO.html#t%3AArrowIO" >ArrowIO</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Text-XML-HXT-Arrow-XmlArrow.html#t%3AArrowDTD" >ArrowDTD</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ><TR ><TD CLASS="decl" ><A HREF="Text-XML-HXT-Arrow-XmlArrow.html#t%3AArrowXml" >ArrowXml</A > (<A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s)</TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:liftSt" ><A NAME="v%3AliftSt" ></A ></A ><B >liftSt</B > :: <A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s1 b c -> <A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > (s1, s2) b c</TD ></TR ><TR ><TD CLASS="doc" ><P >lift the state of an IOSLA arrow to a state with an additional component. </P ><P >This is uesful, when running predefined IO arrows, e.g. for document input, in a context with a more complex state component. </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:runSt" ><A NAME="v%3ArunSt" ></A ></A ><B >runSt</B > :: s2 -> <A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > (s1, s2) b c -> <A HREF="Control-Arrow-IOStateListArrow.html#t%3AIOSLA" >IOSLA</A > s1 b c</TD ></TR ><TR ><TD CLASS="doc" ><P >run an arrow with augmented state in the context of a simple state arrow. An initial value for the new state component is needed. </P ><P >This is useful, when running an arrow with an extra environment component, e.g. for namespace handling in XML. </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="botbar" >Produced by <A HREF="http://www.haskell.org/haddock/" >Haddock</A > version 2.5.0</TD ></TR ></TABLE ></BODY ></HTML >