<!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 >Text.XML.HXT.Arrow.XmlRegex</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_Text-XML-HXT-Arrow-XmlRegex.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" >Text.XML.HXT.Arrow.XmlRegex</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" ><P >Regular Expression Matcher working on lists of XmlTrees </P ><P >It's intendet to import this module with an explicit import declaration for not spoiling the namespace with these somewhat special arrows </P ></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" >data</SPAN > <A HREF="#t%3AXmlRegex" >XmlRegex</A > </TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkZero" >mkZero</A > :: <A HREF="/usr/share/doc/ghc/libraries/base/Data-Char.html#t%3AString" >String</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkUnit" >mkUnit</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkPrim" >mkPrim</A > :: (<A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Bool.html#t%3ABool" >Bool</A >) -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkPrimA" >mkPrimA</A > :: <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkDot" >mkDot</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkStar" >mkStar</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkAlt" >mkAlt</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkSeq" >mkSeq</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkRep" >mkRep</A > :: <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Types.html#t%3AInt" >Int</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkRng" >mkRng</A > :: <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Types.html#t%3AInt" >Int</A > -> <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Types.html#t%3AInt" >Int</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmkOpt" >mkOpt</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3Anullable" >nullable</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Bool.html#t%3ABool" >Bool</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3Adelta" >delta</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmatchXmlRegex" >matchXmlRegex</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A > -> <A HREF="/usr/share/doc/ghc/libraries/base/Data-Maybe.html#t%3AMaybe" >Maybe</A > <A HREF="/usr/share/doc/ghc/libraries/base/Data-Char.html#t%3AString" >String</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AsplitXmlRegex" >splitXmlRegex</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A > -> <A HREF="/usr/share/doc/ghc/libraries/base/Data-Maybe.html#t%3AMaybe" >Maybe</A > (<A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >, <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >)</TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AscanXmlRegex" >scanXmlRegex</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A > -> <A HREF="/usr/share/doc/ghc/libraries/base/Data-Maybe.html#t%3AMaybe" >Maybe</A > [<A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >]</TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AmatchRegexA" >matchRegexA</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A ></TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AsplitRegexA" >splitRegexA</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > (<A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >, <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >)</TD ></TR ><TR ><TD CLASS="s8" ></TD ></TR ><TR ><TD CLASS="decl" ><A HREF="#v%3AscanRegexA" >scanRegexA</A > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A ></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" >data</SPAN > <A NAME="t:XmlRegex" ><A NAME="t%3AXmlRegex" ></A ></A ><B >XmlRegex</B > </TD ></TR ><TR ><TD CLASS="body" ><TABLE CLASS="vanilla" CELLSPACING="0" CELLPADDING="0" ><TR ><TD CLASS="section4" ><IMG SRC="minus.gif" CLASS="coll" ONCLICK="toggle(this,'i:XmlRegex')" ALT="show/hide" > Instances</TD ></TR ><TR ><TD CLASS="body" ><DIV ID="i:XmlRegex" STYLE="display:block;" ><TABLE CLASS="vanilla" CELLSPACING="1" CELLPADDING="0" ><TR ><TD CLASS="decl" ><A HREF="/usr/share/doc/ghc/libraries/base/Text-Show.html#t%3AShow" >Show</A > <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkZero" ><A NAME="v%3AmkZero" ></A ></A ><B >mkZero</B > :: <A HREF="/usr/share/doc/ghc/libraries/base/Data-Char.html#t%3AString" >String</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkUnit" ><A NAME="v%3AmkUnit" ></A ></A ><B >mkUnit</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkPrim" ><A NAME="v%3AmkPrim" ></A ></A ><B >mkPrim</B > :: (<A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Bool.html#t%3ABool" >Bool</A >) -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkPrimA" ><A NAME="v%3AmkPrimA" ></A ></A ><B >mkPrimA</B > :: <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkDot" ><A NAME="v%3AmkDot" ></A ></A ><B >mkDot</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkStar" ><A NAME="v%3AmkStar" ></A ></A ><B >mkStar</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkAlt" ><A NAME="v%3AmkAlt" ></A ></A ><B >mkAlt</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkSeq" ><A NAME="v%3AmkSeq" ></A ></A ><B >mkSeq</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkRep" ><A NAME="v%3AmkRep" ></A ></A ><B >mkRep</B > :: <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Types.html#t%3AInt" >Int</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkRng" ><A NAME="v%3AmkRng" ></A ></A ><B >mkRng</B > :: <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Types.html#t%3AInt" >Int</A > -> <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Types.html#t%3AInt" >Int</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:mkOpt" ><A NAME="v%3AmkOpt" ></A ></A ><B >mkOpt</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:nullable" ><A NAME="v%3Anullable" ></A ></A ><B >nullable</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="/usr/share/doc/ghc/libraries/ghc-prim/GHC-Bool.html#t%3ABool" >Bool</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:delta" ><A NAME="v%3Adelta" ></A ></A ><B >delta</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:matchXmlRegex" ><A NAME="v%3AmatchXmlRegex" ></A ></A ><B >matchXmlRegex</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A > -> <A HREF="/usr/share/doc/ghc/libraries/base/Data-Maybe.html#t%3AMaybe" >Maybe</A > <A HREF="/usr/share/doc/ghc/libraries/base/Data-Char.html#t%3AString" >String</A ></TD ></TR ><TR ><TD CLASS="doc" ><P >match a sequence of XML trees with a regular expression over trees </P ><P >If the input matches, the result is Nothing, else Just an error message is returned </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:splitXmlRegex" ><A NAME="v%3AsplitXmlRegex" ></A ></A ><B >splitXmlRegex</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A > -> <A HREF="/usr/share/doc/ghc/libraries/base/Data-Maybe.html#t%3AMaybe" >Maybe</A > (<A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >, <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >)</TD ></TR ><TR ><TD CLASS="doc" ><P >split a sequence of XML trees into a pair of a a matching prefix and a rest </P ><P >If there is no matching prefix, Nothing is returned </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:scanXmlRegex" ><A NAME="v%3AscanXmlRegex" ></A ></A ><B >scanXmlRegex</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A > -> <A HREF="/usr/share/doc/ghc/libraries/base/Data-Maybe.html#t%3AMaybe" >Maybe</A > [<A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >]</TD ></TR ><TR ><TD CLASS="doc" ><P >scan a sequence of XML trees and split it into parts matching the given regex </P ><P >If the parts cannot be split because of a missing match, or because of the empty sequence as match, Nothing is returned </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:matchRegexA" ><A NAME="v%3AmatchRegexA" ></A ></A ><B >matchRegexA</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A ></TD ></TR ><TR ><TD CLASS="doc" ><P >check whether a sequence of XmlTrees match an Xml regular expression </P ><P >The arrow for <TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AmatchXmlRegex" >matchXmlRegex</A ></TT >. </P ><P >The expession is build up from simple arrows acting as predicate (<TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AmkPrimA" >mkPrimA</A ></TT >) for an XmlTree and of the usual cobinators for sequence (<TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AmkSeq" >mkSeq</A ></TT >), repetition (<TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AmkStar" >mkStar</A ></TT >, mkRep', <TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AmkRng" >mkRng</A ></TT >) and choice (<TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AmkAlt" >mkAlt</A ></TT >, <TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AmkOpt" >mkOpt</A ></TT >) </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:splitRegexA" ><A NAME="v%3AsplitRegexA" ></A ></A ><B >splitRegexA</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > (<A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >, <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A >)</TD ></TR ><TR ><TD CLASS="doc" ><P >split the sequence of trees computed by the filter a into </P ><P >The arrow for <TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AsplitXmlRegex" >splitXmlRegex</A ></TT >. </P ><P >a first part matching the regex and a rest, if a prefix of the input sequence does not match the regex, the arrow fails else the pair containing the result lists is returned </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="decl" ><A NAME="v:scanRegexA" ><A NAME="v%3AscanRegexA" ></A ></A ><B >scanRegexA</B > :: <A HREF="Text-XML-HXT-Arrow-XmlRegex.html#t%3AXmlRegex" >XmlRegex</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > -> <A HREF="Control-Arrow-ListArrow.html#t%3ALA" >LA</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTree" >XmlTree</A > <A HREF="Text-XML-HXT-DOM-TypeDefs.html#t%3AXmlTrees" >XmlTrees</A ></TD ></TR ><TR ><TD CLASS="doc" ><P >scan the input sequence with a regex and give the result as a list of lists of trees back the regex must at least match one input tree, so the empty sequence should not match the regex </P ><P >The arrow for <TT ><A HREF="Text-XML-HXT-Arrow-XmlRegex.html#v%3AscanXmlRegex" >scanXmlRegex</A ></TT >. </P ></TD ></TR ><TR ><TD CLASS="s15" ></TD ></TR ><TR ><TD CLASS="botbar" >Produced by <A 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