hxt-8.2.0: doc/hdoc/src/Text-XML-HXT-XSLT-XsltArrows.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ -->
<title>Haskell Code by HsColour</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='comment'>{- |
<a name="line-4"></a> Module : Text.XML.HXT.XSLT.XsltArrows
<a name="line-5"></a> Copyright : Copyright (C) 2006 Tim Walkenhorst, Uwe Schmidt
<a name="line-6"></a> License : MIT
<a name="line-7"></a>
<a name="line-8"></a> Maintainer : Uwe Schmidt (uwe@fh-wedel.de)
<a name="line-9"></a> Stability : experimental
<a name="line-10"></a> Portability: portable
<a name="line-11"></a> Version : $Id: XsltArrows.hs,v 1.1 2006/11/11 15:36:05 hxml Exp $
<a name="line-12"></a>
<a name="line-13"></a> The HXT arrow interface for the XSLT module
<a name="line-14"></a>
<a name="line-15"></a> The application programming interface to the arrow modules of the Haskell XML Toolbox.
<a name="line-16"></a> This module exports all important arrows for input, output, parsing, validating and transforming XML.
<a name="line-17"></a> It also exports all basic datatypes and functions of the toolbox.
<a name="line-18"></a>
<a name="line-19"></a>-}</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-22"></a>
<a name="line-23"></a>
<a name="line-24"></a><span class='keyword'>module</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>XSLT</span><span class='varop'>.</span><span class='conid'>XsltArrows</span>
<a name="line-25"></a> <span class='layout'>(</span> <span class='varid'>xsltCompileStylesheet</span>
<a name="line-26"></a> <span class='layout'>,</span> <span class='varid'>xsltCompileStylesheetFromURI</span>
<a name="line-27"></a> <span class='layout'>,</span> <span class='varid'>xsltApplyStylesheet</span>
<a name="line-28"></a> <span class='layout'>,</span> <span class='varid'>xsltApplyStylesheetFromURI</span>
<a name="line-29"></a> <span class='layout'>,</span> <span class='conid'>CompiledStylesheet</span>
<a name="line-30"></a> <span class='layout'>)</span>
<a name="line-31"></a><span class='keyword'>where</span>
<a name="line-32"></a>
<a name="line-33"></a><span class='keyword'>import</span> <span class='conid'>Prelude</span> <span class='varid'>hiding</span> <span class='layout'>(</span> <span class='varid'>catch</span> <span class='layout'>)</span>
<a name="line-34"></a>
<a name="line-35"></a><span class='keyword'>import</span> <span class='conid'>Control</span><span class='varop'>.</span><span class='conid'>Exception</span>
<a name="line-36"></a> <span class='layout'>(</span> <span class='conid'>SomeException</span>
<a name="line-37"></a> <span class='layout'>,</span> <span class='varid'>catch</span>
<a name="line-38"></a> <span class='layout'>,</span> <span class='varid'>evaluate</span> <span class='layout'>)</span>
<a name="line-39"></a>
<a name="line-40"></a><span class='keyword'>import</span> <span class='conid'>Control</span><span class='varop'>.</span><span class='conid'>Arrow</span><span class='varop'>.</span><span class='conid'>ListArrows</span>
<a name="line-41"></a>
<a name="line-42"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>DOM</span><span class='varop'>.</span><span class='conid'>Interface</span>
<a name="line-43"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>Arrow</span><span class='varop'>.</span><span class='conid'>XmlIOStateArrow</span>
<a name="line-44"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>Arrow</span><span class='varop'>.</span><span class='conid'>XmlArrow</span>
<a name="line-45"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>Arrow</span><span class='varop'>.</span><span class='conid'>ReadDocument</span>
<a name="line-46"></a>
<a name="line-47"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>XSLT</span><span class='varop'>.</span><span class='conid'>Names</span>
<a name="line-48"></a>
<a name="line-49"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>XSLT</span><span class='varop'>.</span><span class='conid'>CompiledStylesheet</span>
<a name="line-50"></a> <span class='layout'>(</span> <span class='conid'>CompiledStylesheet</span> <span class='layout'>)</span>
<a name="line-51"></a>
<a name="line-52"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>XSLT</span><span class='varop'>.</span><span class='conid'>Compilation</span>
<a name="line-53"></a> <span class='layout'>(</span> <span class='varid'>prepareXSLTDocument</span>
<a name="line-54"></a> <span class='layout'>,</span> <span class='varid'>assembleStylesheet</span>
<a name="line-55"></a> <span class='layout'>)</span>
<a name="line-56"></a>
<a name="line-57"></a><span class='keyword'>import</span> <span class='conid'>Text</span><span class='varop'>.</span><span class='conid'>XML</span><span class='varop'>.</span><span class='conid'>HXT</span><span class='varop'>.</span><span class='conid'>XSLT</span><span class='varop'>.</span><span class='conid'>Application</span>
<a name="line-58"></a> <span class='layout'>(</span> <span class='varid'>applyStylesheet</span> <span class='layout'>)</span>
<a name="line-59"></a>
<a name="line-60"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-61"></a>
<a name="line-62"></a><span class='comment'>-- | arrow for applying a pure partial function, catch the error case and issue the error</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="arrWithCatch"></a><span class='definition'>arrWithCatch</span> <span class='keyglyph'>::</span> <span class='layout'>(</span><span class='varid'>a</span> <span class='keyglyph'>-></span> <span class='varid'>b</span><span class='layout'>)</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='varid'>a</span> <span class='varid'>b</span>
<a name="line-65"></a><span class='definition'>arrWithCatch</span> <span class='varid'>f</span>
<a name="line-66"></a> <span class='keyglyph'>=</span> <span class='varid'>arrIO</span> <span class='layout'>(</span><span class='varid'>applyf</span> <span class='varid'>f</span><span class='layout'>)</span>
<a name="line-67"></a> <span class='varop'>>>></span>
<a name="line-68"></a> <span class='layout'>(</span> <span class='layout'>(</span><span class='varid'>applyA</span> <span class='layout'>(</span><span class='varid'>arr</span> <span class='varid'>issueErr</span><span class='layout'>)</span> <span class='varop'>>>></span> <span class='varid'>none</span><span class='layout'>)</span>
<a name="line-69"></a> <span class='varop'>|||</span>
<a name="line-70"></a> <span class='varid'>this</span>
<a name="line-71"></a> <span class='layout'>)</span>
<a name="line-72"></a>
<a name="line-73"></a><a name="applyf"></a><span class='definition'>applyf</span> <span class='keyglyph'>::</span> <span class='layout'>(</span><span class='varid'>a</span> <span class='keyglyph'>-></span> <span class='varid'>b</span><span class='layout'>)</span> <span class='keyglyph'>-></span> <span class='varid'>a</span> <span class='keyglyph'>-></span> <span class='conid'>IO</span> <span class='layout'>(</span><span class='conid'>Either</span> <span class='conid'>String</span> <span class='varid'>b</span><span class='layout'>)</span>
<a name="line-74"></a><span class='definition'>applyf</span> <span class='varid'>f</span> <span class='varid'>x</span>
<a name="line-75"></a> <span class='keyglyph'>=</span> <span class='varid'>catch'</span> <span class='layout'>(</span> <span class='keyword'>do</span>
<a name="line-76"></a> <span class='varid'>res</span> <span class='keyglyph'><-</span> <span class='varid'>evaluate</span> <span class='layout'>(</span> <span class='varid'>f</span> <span class='varid'>x</span> <span class='layout'>)</span>
<a name="line-77"></a> <span class='varid'>return</span> <span class='varop'>.</span> <span class='conid'>Right</span> <span class='varop'>$</span> <span class='varid'>res</span>
<a name="line-78"></a> <span class='layout'>)</span>
<a name="line-79"></a> <span class='layout'>(</span><span class='keyglyph'>\</span> <span class='varid'>e</span> <span class='keyglyph'>-></span> <span class='varid'>return</span> <span class='varop'>.</span> <span class='conid'>Left</span> <span class='varop'>.</span> <span class='layout'>(</span><span class='str'>"XSLT: "</span> <span class='varop'>++</span><span class='layout'>)</span> <span class='varop'>.</span> <span class='varid'>show</span> <span class='varop'>$</span> <span class='varid'>e</span><span class='layout'>)</span>
<a name="line-80"></a> <span class='keyword'>where</span>
<a name="line-81"></a> <span class='varid'>catch'</span> <span class='keyglyph'>::</span> <span class='conid'>IO</span> <span class='varid'>a</span> <span class='keyglyph'>-></span> <span class='layout'>(</span><span class='conid'>SomeException</span> <span class='keyglyph'>-></span> <span class='conid'>IO</span> <span class='varid'>a</span><span class='layout'>)</span> <span class='keyglyph'>-></span> <span class='conid'>IO</span> <span class='varid'>a</span>
<a name="line-82"></a> <span class='varid'>catch'</span> <span class='keyglyph'>=</span> <span class='varid'>catch</span>
<a name="line-83"></a>
<a name="line-84"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-85"></a>
<a name="line-86"></a><span class='comment'>-- | lift prepareXSLTDocument</span>
<a name="line-87"></a>
<a name="line-88"></a><a name="prepareXSLTDoc"></a><span class='definition'>prepareXSLTDoc</span> <span class='keyglyph'>::</span> <span class='conid'>IOSArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-89"></a><span class='definition'>prepareXSLTDoc</span>
<a name="line-90"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>arrWithCatch</span> <span class='varid'>prepareXSLTDocument</span>
<a name="line-91"></a> <span class='varop'>>>></span>
<a name="line-92"></a> <span class='varid'>traceDoc</span> <span class='str'>"prepareXSLTDocument"</span>
<a name="line-93"></a> <span class='layout'>)</span>
<a name="line-94"></a> <span class='varop'>`when`</span>
<a name="line-95"></a> <span class='varid'>documentStatusOk</span>
<a name="line-96"></a>
<a name="line-97"></a><span class='comment'>-- | read an XSLT stylesheet</span>
<a name="line-98"></a>
<a name="line-99"></a><a name="readXSLTDoc"></a><span class='definition'>readXSLTDoc</span> <span class='keyglyph'>::</span> <span class='conid'>Attributes</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='conid'>String</span> <span class='conid'>XmlTree</span>
<a name="line-100"></a><span class='definition'>readXSLTDoc</span> <span class='varid'>options</span>
<a name="line-101"></a> <span class='keyglyph'>=</span> <span class='varid'>readFromDocument</span> <span class='layout'>(</span><span class='varid'>options</span> <span class='varop'>++</span> <span class='varid'>defaultOptions</span><span class='layout'>)</span>
<a name="line-102"></a> <span class='keyword'>where</span>
<a name="line-103"></a> <span class='varid'>defaultOptions</span>
<a name="line-104"></a> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span> <span class='layout'>(</span><span class='varid'>a_check_namespaces</span><span class='layout'>,</span> <span class='varid'>v_1</span><span class='layout'>)</span>
<a name="line-105"></a> <span class='layout'>,</span> <span class='layout'>(</span><span class='varid'>a_validate</span><span class='layout'>,</span> <span class='varid'>v_0</span><span class='layout'>)</span>
<a name="line-106"></a> <span class='layout'>,</span> <span class='layout'>(</span><span class='varid'>a_preserve_comment</span><span class='layout'>,</span> <span class='varid'>v_0</span><span class='layout'>)</span>
<a name="line-107"></a> <span class='keyglyph'>]</span>
<a name="line-108"></a>
<a name="line-109"></a><span class='comment'>-- | Normalize stylesheet, expand includes, select imports and assemble the rules</span>
<a name="line-110"></a>
<a name="line-111"></a><a name="compileSSTWithIncludeStack"></a><span class='definition'>compileSSTWithIncludeStack</span> <span class='keyglyph'>::</span> <span class='keyglyph'>[</span><span class='conid'>String</span><span class='keyglyph'>]</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>CompiledStylesheet</span>
<a name="line-112"></a><span class='definition'>compileSSTWithIncludeStack</span> <span class='varid'>incStack</span>
<a name="line-113"></a> <span class='keyglyph'>=</span> <span class='varid'>traceMsg</span> <span class='num'>2</span> <span class='str'>"compile stylesheet"</span>
<a name="line-114"></a> <span class='varop'>>>></span>
<a name="line-115"></a> <span class='varid'>getChildren</span> <span class='comment'>-- remove document root</span>
<a name="line-116"></a> <span class='varop'>>>></span>
<a name="line-117"></a> <span class='varid'>isElem</span> <span class='comment'>-- select XSLT root element</span>
<a name="line-118"></a> <span class='varop'>>>></span>
<a name="line-119"></a> <span class='varid'>choiceA</span>
<a name="line-120"></a> <span class='keyglyph'>[</span> <span class='varid'>isXsltLREstylesheet</span> <span class='comment'>-- simplified syntax</span>
<a name="line-121"></a> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='varid'>xsltlre2stylesheet</span>
<a name="line-122"></a> <span class='varop'>>>></span>
<a name="line-123"></a> <span class='varid'>assStylesheet</span> <span class='conid'>[]</span>
<a name="line-124"></a> <span class='layout'>)</span>
<a name="line-125"></a> <span class='layout'>,</span> <span class='varid'>isXsltStylesheetElem</span> <span class='comment'>-- xsl:stylesheet or xsl:transform</span>
<a name="line-126"></a> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='varid'>expStylesheet</span>
<a name="line-127"></a> <span class='varop'>$<</span> <span class='layout'>(</span> <span class='varid'>listA</span> <span class='layout'>(</span> <span class='varid'>getChildren</span> <span class='comment'>-- take contents and expand includes</span>
<a name="line-128"></a> <span class='varop'>>>></span>
<a name="line-129"></a> <span class='varid'>expandIncludes</span> <span class='varid'>incStack</span>
<a name="line-130"></a> <span class='layout'>)</span>
<a name="line-131"></a> <span class='varop'>>>></span>
<a name="line-132"></a> <span class='varid'>partitionA</span> <span class='varid'>isXsltImport</span> <span class='comment'>-- separate imports from normal rules</span>
<a name="line-133"></a> <span class='layout'>)</span>
<a name="line-134"></a> <span class='layout'>)</span>
<a name="line-135"></a> <span class='layout'>,</span> <span class='varid'>this</span>
<a name="line-136"></a> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='varid'>issueErr</span> <span class='str'>"XSLT: Either xsl:stylesheet/xsl:transform or simplified syntax expected"</span>
<a name="line-137"></a> <span class='varop'>>>></span>
<a name="line-138"></a> <span class='varid'>none</span>
<a name="line-139"></a> <span class='layout'>)</span>
<a name="line-140"></a> <span class='keyglyph'>]</span>
<a name="line-141"></a> <span class='keyword'>where</span>
<a name="line-142"></a> <span class='varid'>assStylesheet</span> <span class='varid'>imports</span> <span class='comment'>-- do the assembly, the compilation</span>
<a name="line-143"></a> <span class='keyglyph'>=</span> <span class='varid'>arrWithCatch</span> <span class='layout'>(</span><span class='varid'>flip</span> <span class='varid'>assembleStylesheet</span> <span class='varop'>$</span> <span class='varid'>imports</span><span class='layout'>)</span>
<a name="line-144"></a>
<a name="line-145"></a> <span class='varid'>expStylesheet</span> <span class='layout'>(</span><span class='varid'>imports</span><span class='layout'>,</span> <span class='varid'>rest</span><span class='layout'>)</span>
<a name="line-146"></a> <span class='keyglyph'>=</span> <span class='varid'>traceMsg</span> <span class='num'>2</span> <span class='str'>"expandStylesheet"</span>
<a name="line-147"></a> <span class='varop'>>>></span>
<a name="line-148"></a> <span class='varid'>setChildren</span> <span class='varid'>rest</span> <span class='comment'>-- remove import rules from stylesheet</span>
<a name="line-149"></a> <span class='varop'>>>></span>
<a name="line-150"></a> <span class='varid'>assStylesheet</span> <span class='varop'>$<</span> <span class='varid'>listA</span> <span class='layout'>(</span> <span class='varid'>constL</span> <span class='varid'>imports</span> <span class='comment'>-- read the imports and assemble the stylesheet</span>
<a name="line-151"></a> <span class='varop'>>>></span>
<a name="line-152"></a> <span class='varid'>getXsltAttrValue</span> <span class='varid'>xsltHRef</span>
<a name="line-153"></a> <span class='varop'>>>></span>
<a name="line-154"></a> <span class='varid'>compileSSTFromUriWithIncludeStack</span> <span class='varid'>incStack</span>
<a name="line-155"></a> <span class='layout'>)</span>
<a name="line-156"></a>
<a name="line-157"></a><span class='comment'>-- | read an include and check for recursive includes</span>
<a name="line-158"></a>
<a name="line-159"></a><a name="readSSTWithIncludeStack"></a><span class='definition'>readSSTWithIncludeStack</span> <span class='keyglyph'>::</span> <span class='keyglyph'>[</span><span class='conid'>String</span><span class='keyglyph'>]</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='conid'>String</span> <span class='conid'>XmlTree</span>
<a name="line-160"></a><span class='definition'>readSSTWithIncludeStack</span> <span class='varid'>incStack</span>
<a name="line-161"></a> <span class='keyglyph'>=</span> <span class='varid'>ifP</span> <span class='layout'>(</span><span class='varop'>`elem`</span> <span class='varid'>incStack</span><span class='layout'>)</span>
<a name="line-162"></a> <span class='layout'>(</span> <span class='layout'>(</span><span class='varid'>issueErr</span> <span class='varop'>$<</span> <span class='varid'>arr</span> <span class='varid'>recursiveInclude</span><span class='layout'>)</span> <span class='varop'>>>></span> <span class='varid'>none</span> <span class='layout'>)</span>
<a name="line-163"></a> <span class='layout'>(</span> <span class='varid'>readXSLTDoc</span> <span class='conid'>[]</span>
<a name="line-164"></a> <span class='varop'>>>></span>
<a name="line-165"></a> <span class='varid'>prepareXSLTDoc</span>
<a name="line-166"></a> <span class='layout'>)</span>
<a name="line-167"></a> <span class='keyword'>where</span>
<a name="line-168"></a> <span class='varid'>recursiveInclude</span> <span class='varid'>uri</span>
<a name="line-169"></a> <span class='keyglyph'>=</span> <span class='str'>"XSLT error: "</span>
<a name="line-170"></a> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>uri</span> <span class='varop'>++</span> <span class='str'>" is recursively imported/included."</span>
<a name="line-171"></a> <span class='varop'>++</span> <span class='varid'>concatMap</span> <span class='layout'>(</span><span class='layout'>(</span><span class='str'>"\n imported/included from: "</span> <span class='varop'>++</span><span class='layout'>)</span> <span class='varop'>.</span> <span class='varid'>show</span><span class='layout'>)</span> <span class='varid'>incStack</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="compileSSTFromUriWithIncludeStack"></a><span class='definition'>compileSSTFromUriWithIncludeStack</span> <span class='keyglyph'>::</span> <span class='keyglyph'>[</span><span class='conid'>String</span><span class='keyglyph'>]</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='conid'>String</span> <span class='conid'>CompiledStylesheet</span>
<a name="line-174"></a><span class='definition'>compileSSTFromUriWithIncludeStack</span> <span class='varid'>incStack</span>
<a name="line-175"></a> <span class='keyglyph'>=</span> <span class='varid'>comp</span> <span class='varop'>$<</span> <span class='varid'>this</span>
<a name="line-176"></a> <span class='keyword'>where</span>
<a name="line-177"></a> <span class='varid'>comp</span> <span class='varid'>uri</span>
<a name="line-178"></a> <span class='keyglyph'>=</span> <span class='varid'>readSSTWithIncludeStack</span> <span class='varid'>incStack</span>
<a name="line-179"></a> <span class='varop'>>>></span>
<a name="line-180"></a> <span class='varid'>compileSSTWithIncludeStack</span> <span class='layout'>(</span><span class='varid'>uri</span><span class='conop'>:</span><span class='varid'>incStack</span><span class='layout'>)</span>
<a name="line-181"></a>
<a name="line-182"></a><a name="expandIncludes"></a><span class='definition'>expandIncludes</span> <span class='keyglyph'>::</span> <span class='keyglyph'>[</span><span class='conid'>String</span><span class='keyglyph'>]</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-183"></a><span class='definition'>expandIncludes</span> <span class='varid'>incStack</span>
<a name="line-184"></a> <span class='keyglyph'>=</span> <span class='varid'>isElem</span>
<a name="line-185"></a> <span class='varop'>>>></span>
<a name="line-186"></a> <span class='layout'>(</span> <span class='layout'>(</span> <span class='varid'>expandInclude</span> <span class='varop'>$<</span> <span class='varid'>getXsltAttrValue</span> <span class='varid'>xsltHRef</span> <span class='layout'>)</span>
<a name="line-187"></a> <span class='varop'>`when`</span>
<a name="line-188"></a> <span class='varid'>isXsltInclude</span>
<a name="line-189"></a> <span class='layout'>)</span>
<a name="line-190"></a> <span class='keyword'>where</span>
<a name="line-191"></a> <span class='varid'>expandInclude</span> <span class='varid'>href</span>
<a name="line-192"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>constA</span> <span class='varid'>href</span>
<a name="line-193"></a> <span class='varop'>>>></span>
<a name="line-194"></a> <span class='varid'>readSSTWithIncludeStack</span> <span class='varid'>incStack</span>
<a name="line-195"></a> <span class='varop'>>>></span>
<a name="line-196"></a> <span class='varid'>getChildren</span>
<a name="line-197"></a> <span class='varop'>>>></span>
<a name="line-198"></a> <span class='varid'>isElem</span>
<a name="line-199"></a> <span class='varop'>>>></span>
<a name="line-200"></a> <span class='varid'>choiceA</span>
<a name="line-201"></a> <span class='keyglyph'>[</span> <span class='varid'>isXsltLREstylesheet</span>
<a name="line-202"></a> <span class='conop'>:-></span> <span class='varid'>xsltlre2template</span>
<a name="line-203"></a>
<a name="line-204"></a> <span class='layout'>,</span> <span class='varid'>isXsltStylesheetElem</span>
<a name="line-205"></a> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='varid'>getChildren</span>
<a name="line-206"></a> <span class='varop'>>>></span>
<a name="line-207"></a> <span class='varid'>expandIncludes</span> <span class='layout'>(</span><span class='varid'>href</span><span class='conop'>:</span><span class='varid'>incStack</span><span class='layout'>)</span>
<a name="line-208"></a> <span class='layout'>)</span>
<a name="line-209"></a>
<a name="line-210"></a> <span class='layout'>,</span> <span class='varid'>this</span>
<a name="line-211"></a> <span class='conop'>:-></span> <span class='varid'>issueFatal</span> <span class='layout'>(</span><span class='str'>"XSLT error: Included file "</span> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>href</span> <span class='varop'>++</span> <span class='str'>" is not a stylesheet"</span><span class='layout'>)</span>
<a name="line-212"></a> <span class='keyglyph'>]</span>
<a name="line-213"></a> <span class='layout'>)</span>
<a name="line-214"></a>
<a name="line-215"></a><a name="isXsltElem"></a><span class='definition'>isXsltElem</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='conid'>QName</span> <span class='keyglyph'>-></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-216"></a><span class='definition'>isXsltElem</span> <span class='varid'>qn</span> <span class='keyglyph'>=</span> <span class='varid'>isElem</span> <span class='varop'>>>></span> <span class='varid'>hasNameWith</span> <span class='layout'>(</span><span class='varid'>equivQName</span> <span class='varid'>qn</span><span class='layout'>)</span>
<a name="line-217"></a>
<a name="line-218"></a><a name="isXsltAttr"></a><span class='definition'>isXsltAttr</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='conid'>QName</span> <span class='keyglyph'>-></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-219"></a><span class='definition'>isXsltAttr</span> <span class='varid'>qn</span> <span class='keyglyph'>=</span> <span class='varid'>isAttr</span> <span class='varop'>>>></span> <span class='varid'>hasNameWith</span> <span class='layout'>(</span><span class='varid'>equivQName</span> <span class='varid'>qn</span><span class='layout'>)</span>
<a name="line-220"></a>
<a name="line-221"></a><a name="hasXsltAttr"></a><span class='definition'>hasXsltAttr</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='conid'>QName</span> <span class='keyglyph'>-></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-222"></a><span class='definition'>hasXsltAttr</span> <span class='varid'>qn</span> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>getAttrl</span> <span class='varop'>>>></span> <span class='varid'>isXsltAttr</span> <span class='varid'>qn</span> <span class='layout'>)</span>
<a name="line-223"></a> <span class='varop'>`guards`</span>
<a name="line-224"></a> <span class='varid'>this</span>
<a name="line-225"></a>
<a name="line-226"></a><a name="isXsltInclude"></a><span class='definition'>isXsltInclude</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-227"></a><span class='definition'>isXsltInclude</span> <span class='keyglyph'>=</span> <span class='varid'>isXsltElem</span> <span class='varid'>xsltInclude</span>
<a name="line-228"></a>
<a name="line-229"></a><a name="isXsltImport"></a><span class='definition'>isXsltImport</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-230"></a><span class='definition'>isXsltImport</span> <span class='keyglyph'>=</span> <span class='varid'>isXsltElem</span> <span class='varid'>xsltImport</span>
<a name="line-231"></a>
<a name="line-232"></a><a name="isXsltLREstylesheet"></a><span class='definition'>isXsltLREstylesheet</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-233"></a><span class='definition'>isXsltLREstylesheet</span> <span class='keyglyph'>=</span> <span class='varid'>hasXsltAttr</span> <span class='varid'>xsltVersionLRE</span>
<a name="line-234"></a>
<a name="line-235"></a><a name="isXsltStylesheetElem"></a><span class='definition'>isXsltStylesheetElem</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-236"></a><span class='definition'>isXsltStylesheetElem</span> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>isXsltElem</span> <span class='varid'>xsltTransform</span>
<a name="line-237"></a> <span class='varop'><+></span>
<a name="line-238"></a> <span class='varid'>isXsltElem</span> <span class='varid'>xsltStylesheet</span>
<a name="line-239"></a> <span class='layout'>)</span>
<a name="line-240"></a> <span class='varop'>>>></span>
<a name="line-241"></a> <span class='varid'>hasXsltAttr</span> <span class='varid'>xsltVersion</span>
<a name="line-242"></a>
<a name="line-243"></a><a name="getXsltAttrValue"></a><span class='definition'>getXsltAttrValue</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='conid'>QName</span> <span class='keyglyph'>-></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>String</span>
<a name="line-244"></a><span class='definition'>getXsltAttrValue</span> <span class='varid'>qn</span> <span class='keyglyph'>=</span> <span class='varid'>getAttrl</span> <span class='varop'>>>></span> <span class='varid'>isXsltAttr</span> <span class='varid'>qn</span> <span class='varop'>>>></span> <span class='varid'>xshow</span> <span class='varid'>getChildren</span>
<a name="line-245"></a>
<a name="line-246"></a><a name="xsltlre2template"></a><span class='definition'>xsltlre2template</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-247"></a><span class='definition'>xsltlre2template</span> <span class='keyglyph'>=</span> <span class='varid'>mkqelem</span> <span class='varid'>xsltTemplate</span> <span class='keyglyph'>[</span><span class='varid'>sqattr</span> <span class='varid'>xsltMatch</span> <span class='str'>"/"</span><span class='keyglyph'>]</span> <span class='keyglyph'>[</span><span class='varid'>this</span><span class='keyglyph'>]</span>
<a name="line-248"></a>
<a name="line-249"></a><a name="xsltlre2stylesheet"></a><span class='definition'>xsltlre2stylesheet</span> <span class='keyglyph'>::</span> <span class='conid'>ArrowXml</span> <span class='varid'>a</span> <span class='keyglyph'>=></span> <span class='varid'>a</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-250"></a><span class='definition'>xsltlre2stylesheet</span> <span class='keyglyph'>=</span> <span class='varid'>mkqelem</span> <span class='varid'>xsltTransform</span> <span class='conid'>[]</span> <span class='keyglyph'>[</span> <span class='varid'>this</span> <span class='varop'>>>></span> <span class='varid'>xsltlre2template</span> <span class='keyglyph'>]</span>
<a name="line-251"></a>
<a name="line-252"></a><span class='comment'>--</span>
<a name="line-253"></a>
<a name="line-254"></a><a name="checkApplySST"></a><span class='definition'>checkApplySST</span> <span class='keyglyph'>::</span> <span class='conid'>IOSArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-255"></a><span class='definition'>checkApplySST</span> <span class='varid'>appl</span>
<a name="line-256"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>isRoot</span>
<a name="line-257"></a> <span class='varop'>>>></span>
<a name="line-258"></a> <span class='varid'>replaceChildren</span> <span class='varid'>appl</span>
<a name="line-259"></a> <span class='varop'>>>></span>
<a name="line-260"></a> <span class='varid'>traceDoc</span> <span class='str'>"XSLT stylesheet applied"</span>
<a name="line-261"></a> <span class='varop'>>>></span>
<a name="line-262"></a> <span class='varid'>setDocumentStatusFromSystemState</span> <span class='str'>"applying XSLT styleshhet"</span>
<a name="line-263"></a> <span class='layout'>)</span>
<a name="line-264"></a> <span class='varop'>`orElse`</span>
<a name="line-265"></a> <span class='varid'>issueErr</span> <span class='str'>"XSLT: complete document with root node required for stylesheet application"</span>
<a name="line-266"></a>
<a name="line-267"></a><span class='comment'>-- | Compile a document representing an XSLT stylesheet into an internal representation</span>
<a name="line-268"></a><span class='comment'>--</span>
<a name="line-269"></a><span class='comment'>-- The internal representation is an abstract syntax tree for the XSLT rules.</span>
<a name="line-270"></a><span class='comment'>-- XSLT imports and includes are evaluated and the rules are normalized and prepared</span>
<a name="line-271"></a><span class='comment'>-- for easy application.</span>
<a name="line-272"></a>
<a name="line-273"></a><a name="xsltCompileStylesheet"></a><span class='definition'>xsltCompileStylesheet</span> <span class='keyglyph'>::</span> <span class='conid'>IOSArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>CompiledStylesheet</span>
<a name="line-274"></a><span class='definition'>xsltCompileStylesheet</span>
<a name="line-275"></a> <span class='keyglyph'>=</span> <span class='varid'>prepareXSLTDoc</span>
<a name="line-276"></a> <span class='varop'>>>></span>
<a name="line-277"></a> <span class='varid'>compileSSTWithIncludeStack</span> <span class='conid'>[]</span>
<a name="line-278"></a>
<a name="line-279"></a><span class='comment'>-- | A convinient function for combining reading a stylesheet and compilation.</span>
<a name="line-280"></a><span class='comment'>--</span>
<a name="line-281"></a><span class='comment'>-- Reading an XSLT stylesheet is always done without validation but with</span>
<a name="line-282"></a><span class='comment'>-- namespace propagation. Comments are removed from the stylesheet.</span>
<a name="line-283"></a>
<a name="line-284"></a><a name="xsltCompileStylesheetFromURI"></a><span class='definition'>xsltCompileStylesheetFromURI</span> <span class='keyglyph'>::</span> <span class='conid'>IOSArrow</span> <span class='conid'>String</span> <span class='conid'>CompiledStylesheet</span>
<a name="line-285"></a><span class='definition'>xsltCompileStylesheetFromURI</span> <span class='keyglyph'>=</span> <span class='varid'>compileSSTFromUriWithIncludeStack</span> <span class='conid'>[]</span>
<a name="line-286"></a>
<a name="line-287"></a><span class='comment'>-- | apply a compiled XSLT stylesheet to a whole document tree</span>
<a name="line-288"></a><span class='comment'>--</span>
<a name="line-289"></a><span class='comment'>-- The compiled stylesheet must have been created with 'xsltCompileStylesheet'</span>
<a name="line-290"></a><span class='comment'>-- or 'xsltCompileStylesheetFromURI'</span>
<a name="line-291"></a>
<a name="line-292"></a><a name="xsltApplyStylesheet"></a><span class='definition'>xsltApplyStylesheet</span> <span class='keyglyph'>::</span> <span class='conid'>CompiledStylesheet</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-293"></a><span class='definition'>xsltApplyStylesheet</span> <span class='varid'>css</span>
<a name="line-294"></a> <span class='keyglyph'>=</span> <span class='varid'>checkApplySST</span> <span class='layout'>(</span><span class='varid'>arrWithCatch</span> <span class='layout'>(</span><span class='varid'>applyStylesheet</span> <span class='varid'>css</span><span class='layout'>)</span> <span class='varop'>>>.</span> <span class='varid'>concat</span><span class='layout'>)</span>
<a name="line-295"></a>
<a name="line-296"></a><span class='comment'>-- | apply an XSLT stylesheet given by an URI to a whole document tree</span>
<a name="line-297"></a><span class='comment'>--</span>
<a name="line-298"></a><span class='comment'>-- The string parameter is the URI of the XSLT stylesheet.</span>
<a name="line-299"></a><span class='comment'>-- In case of an error during stylesheet compilation or stylesheet application</span>
<a name="line-300"></a><span class='comment'>-- all children of the root node are removed and</span>
<a name="line-301"></a><span class='comment'>-- the error status is set in the attribute list of the root node of the input document.</span>
<a name="line-302"></a>
<a name="line-303"></a><a name="xsltApplyStylesheetFromURI"></a><span class='definition'>xsltApplyStylesheetFromURI</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>IOSArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-304"></a><span class='definition'>xsltApplyStylesheetFromURI</span> <span class='varid'>uri</span>
<a name="line-305"></a> <span class='keyglyph'>=</span> <span class='varid'>xsltApplyStylesheet</span> <span class='varop'>$<</span> <span class='layout'>(</span><span class='varid'>constA</span> <span class='varid'>uri</span> <span class='varop'>>>></span> <span class='varid'>xsltCompileStylesheetFromURI</span><span class='layout'>)</span>
<a name="line-306"></a>
<a name="line-307"></a><span class='comment'>{-
<a name="line-308"></a>xsltApplyStylesheetWParams :: Map ExName Expr -> CompiledStylesheet -> IOSArrow XmlTree XmlTree
<a name="line-309"></a>xsltApplyStylesheetWParams wp css = arrL (applyStylesheetWParams wp css)
<a name="line-310"></a>-}</span>
</pre></body>
</html>