hxt-8.0.0: doc/hdoc/src/Text-XML-HXT-Arrow-DTDProcessing.html
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<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.Arrow.DTDProcessing
<a name="line-5"></a> Copyright : Copyright (C) 2005 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: DTDProcessing.hs,v 1.9 2006/05/11 14:47:19 hxml Exp $
<a name="line-12"></a>
<a name="line-13"></a> DTD processing function for
<a name="line-14"></a> including external parts of a DTD
<a name="line-15"></a> parameter entity substitution and general entity substitution
<a name="line-16"></a>
<a name="line-17"></a> Implemtation completely done with arrows
<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><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'>Arrow</span><span class='varop'>.</span><span class='conid'>DTDProcessing</span>
<a name="line-24"></a> <span class='layout'>(</span> <span class='varid'>processDTD</span>
<a name="line-25"></a> <span class='layout'>)</span>
<a name="line-26"></a><span class='keyword'>where</span>
<a name="line-27"></a>
<a name="line-28"></a><span class='keyword'>import</span> <span class='conid'>Control</span><span class='varop'>.</span><span class='conid'>Arrow</span> <span class='comment'>-- arrow classes</span>
<a name="line-29"></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'>ArrowList</span>
<a name="line-30"></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'>ArrowIf</span>
<a name="line-31"></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'>ArrowTree</span>
<a name="line-32"></a>
<a name="line-33"></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-34"></a><span class='keyword'>import</span> <span class='keyword'>qualified</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'>XmlNode</span> <span class='keyword'>as</span> <span class='conid'>XN</span>
<a name="line-35"></a>
<a name="line-36"></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-37"></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-38"></a>
<a name="line-39"></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'>ParserInterface</span>
<a name="line-40"></a> <span class='layout'>(</span> <span class='varid'>parseXmlDTDdecl</span>
<a name="line-41"></a> <span class='layout'>,</span> <span class='varid'>parseXmlDTDdeclPart</span>
<a name="line-42"></a> <span class='layout'>,</span> <span class='varid'>parseXmlDTDEntityValue</span>
<a name="line-43"></a> <span class='layout'>,</span> <span class='varid'>parseXmlDTDPart</span>
<a name="line-44"></a> <span class='layout'>)</span>
<a name="line-45"></a>
<a name="line-46"></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'>Edit</span>
<a name="line-47"></a> <span class='layout'>(</span> <span class='varid'>transfCharRef</span>
<a name="line-48"></a> <span class='layout'>)</span>
<a name="line-49"></a>
<a name="line-50"></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'>DocumentInput</span>
<a name="line-51"></a> <span class='layout'>(</span> <span class='varid'>getXmlEntityContents</span>
<a name="line-52"></a> <span class='layout'>)</span>
<a name="line-53"></a>
<a name="line-54"></a><span class='keyword'>import</span> <span class='conid'>Data</span><span class='varop'>.</span><span class='conid'>Maybe</span>
<a name="line-55"></a>
<a name="line-56"></a><span class='keyword'>import</span> <span class='keyword'>qualified</span> <span class='conid'>Data</span><span class='varop'>.</span><span class='conid'>Map</span> <span class='keyword'>as</span> <span class='conid'>M</span>
<a name="line-57"></a> <span class='layout'>(</span> <span class='conid'>Map</span>
<a name="line-58"></a> <span class='layout'>,</span> <span class='varid'>empty</span>
<a name="line-59"></a> <span class='layout'>,</span> <span class='varid'>lookup</span>
<a name="line-60"></a> <span class='layout'>,</span> <span class='varid'>insert</span>
<a name="line-61"></a> <span class='layout'>)</span>
<a name="line-62"></a>
<a name="line-63"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-64"></a><span class='comment'>--</span>
<a name="line-65"></a>
<a name="line-66"></a><a name="DTDPart"></a><span class='keyword'>data</span> <span class='conid'>DTDPart</span> <span class='keyglyph'>=</span> <span class='conid'>Internal</span>
<a name="line-67"></a> <span class='keyglyph'>|</span> <span class='conid'>External</span>
<a name="line-68"></a> <span class='keyword'>deriving</span> <span class='layout'>(</span><span class='conid'>Eq</span><span class='layout'>)</span>
<a name="line-69"></a>
<a name="line-70"></a><a name="RecList"></a><span class='keyword'>type</span> <span class='conid'>RecList</span> <span class='keyglyph'>=</span> <span class='keyglyph'>[</span><span class='conid'>String</span><span class='keyglyph'>]</span>
<a name="line-71"></a>
<a name="line-72"></a><a name="DTDStateArrow"></a><span class='keyword'>type</span> <span class='conid'>DTDStateArrow</span> <span class='varid'>b</span> <span class='varid'>c</span> <span class='keyglyph'>=</span> <span class='conid'>IOStateArrow</span> <span class='conid'>PEEnv</span> <span class='varid'>b</span> <span class='varid'>c</span>
<a name="line-73"></a>
<a name="line-74"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-75"></a>
<a name="line-76"></a><a name="PEEnv"></a><span class='keyword'>newtype</span> <span class='conid'>PEEnv</span> <span class='keyglyph'>=</span> <span class='conid'>PEEnv</span> <span class='layout'>(</span><span class='conid'>M</span><span class='varop'>.</span><span class='conid'>Map</span> <span class='conid'>String</span> <span class='conid'>XmlTree</span><span class='layout'>)</span>
<a name="line-77"></a>
<a name="line-78"></a><a name="emptyPeEnv"></a><span class='definition'>emptyPeEnv</span> <span class='keyglyph'>::</span> <span class='conid'>PEEnv</span>
<a name="line-79"></a><span class='definition'>emptyPeEnv</span> <span class='keyglyph'>=</span> <span class='conid'>PEEnv</span> <span class='conid'>M</span><span class='varop'>.</span><span class='varid'>empty</span>
<a name="line-80"></a>
<a name="line-81"></a><a name="lookupPeEnv"></a><span class='definition'>lookupPeEnv</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>PEEnv</span> <span class='keyglyph'>-></span> <span class='conid'>Maybe</span> <span class='conid'>XmlTree</span>
<a name="line-82"></a><span class='definition'>lookupPeEnv</span> <span class='varid'>k</span> <span class='layout'>(</span><span class='conid'>PEEnv</span> <span class='varid'>env</span><span class='layout'>)</span>
<a name="line-83"></a> <span class='keyglyph'>=</span> <span class='conid'>M</span><span class='varop'>.</span><span class='varid'>lookup</span> <span class='varid'>k</span> <span class='varid'>env</span>
<a name="line-84"></a>
<a name="line-85"></a><a name="addPeEntry"></a><span class='definition'>addPeEntry</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>XmlTree</span> <span class='keyglyph'>-></span> <span class='conid'>PEEnv</span> <span class='keyglyph'>-></span> <span class='conid'>PEEnv</span>
<a name="line-86"></a><span class='definition'>addPeEntry</span> <span class='varid'>k</span> <span class='varid'>a</span> <span class='layout'>(</span><span class='conid'>PEEnv</span> <span class='varid'>env</span><span class='layout'>)</span>
<a name="line-87"></a> <span class='keyglyph'>=</span> <span class='conid'>PEEnv</span> <span class='varop'>$</span> <span class='conid'>M</span><span class='varop'>.</span><span class='varid'>insert</span> <span class='varid'>k</span> <span class='varid'>a</span> <span class='varid'>env</span>
<a name="line-88"></a>
<a name="line-89"></a><a name="getPeValue"></a><span class='definition'>getPeValue</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>String</span> <span class='conid'>XmlTree</span>
<a name="line-90"></a><span class='definition'>getPeValue</span>
<a name="line-91"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span><span class='varid'>this</span> <span class='varop'>&&&</span> <span class='varid'>getUserState</span><span class='layout'>)</span>
<a name="line-92"></a> <span class='varop'>>>></span>
<a name="line-93"></a> <span class='varid'>arrL</span> <span class='layout'>(</span><span class='keyglyph'>\</span> <span class='layout'>(</span><span class='varid'>n</span><span class='layout'>,</span> <span class='varid'>env</span><span class='layout'>)</span> <span class='keyglyph'>-></span> <span class='varid'>maybeToList</span> <span class='varop'>.</span> <span class='varid'>lookupPeEnv</span> <span class='varid'>n</span> <span class='varop'>$</span> <span class='varid'>env</span><span class='layout'>)</span>
<a name="line-94"></a>
<a name="line-95"></a><a name="addPe"></a><span class='definition'>addPe</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-96"></a><span class='definition'>addPe</span> <span class='varid'>n</span>
<a name="line-97"></a> <span class='keyglyph'>=</span> <span class='varid'>traceMsg</span> <span class='num'>2</span> <span class='layout'>(</span><span class='str'>"substParamEntity: add entity "</span> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>n</span> <span class='varop'>++</span> <span class='str'>" to env"</span><span class='layout'>)</span>
<a name="line-98"></a> <span class='varop'>>>></span>
<a name="line-99"></a> <span class='varid'>changeUserState</span> <span class='varid'>ins</span>
<a name="line-100"></a> <span class='keyword'>where</span>
<a name="line-101"></a> <span class='varid'>ins</span> <span class='varid'>t</span> <span class='varid'>peEnv</span> <span class='keyglyph'>=</span> <span class='varid'>addPeEntry</span> <span class='varid'>n</span> <span class='varid'>t</span> <span class='varid'>peEnv</span>
<a name="line-102"></a>
<a name="line-103"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-104"></a>
<a name="line-105"></a><span class='comment'>-- |</span>
<a name="line-106"></a><span class='comment'>-- a filter for DTD processing</span>
<a name="line-107"></a><span class='comment'>--</span>
<a name="line-108"></a><span class='comment'>-- inclusion of external parts of DTD,</span>
<a name="line-109"></a><span class='comment'>-- parameter entity substitution</span>
<a name="line-110"></a><span class='comment'>-- conditional section evaluation</span>
<a name="line-111"></a><span class='comment'>--</span>
<a name="line-112"></a><span class='comment'>-- input tree must represent a complete document including root node</span>
<a name="line-113"></a>
<a name="line-114"></a><a name="processDTD"></a><span class='definition'>processDTD</span> <span class='keyglyph'>::</span> <span class='conid'>IOStateArrow</span> <span class='varid'>s</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-115"></a><span class='definition'>processDTD</span>
<a name="line-116"></a> <span class='keyglyph'>=</span> <span class='varid'>runInLocalURIContext</span>
<a name="line-117"></a> <span class='layout'>(</span> <span class='varid'>processRoot</span>
<a name="line-118"></a> <span class='varop'>>>></span>
<a name="line-119"></a> <span class='varid'>traceTree</span>
<a name="line-120"></a> <span class='varop'>>>></span>
<a name="line-121"></a> <span class='varid'>traceSource</span>
<a name="line-122"></a> <span class='layout'>)</span>
<a name="line-123"></a> <span class='varop'>`when`</span> <span class='layout'>(</span> <span class='varid'>isRoot</span> <span class='varop'>>>></span> <span class='varid'>getChildren</span> <span class='layout'>)</span>
<a name="line-124"></a> <span class='keyword'>where</span>
<a name="line-125"></a>
<a name="line-126"></a> <span class='varid'>processRoot</span> <span class='keyglyph'>::</span> <span class='conid'>IOStateArrow</span> <span class='varid'>s</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-127"></a> <span class='varid'>processRoot</span>
<a name="line-128"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>traceMsg</span> <span class='num'>1</span> <span class='layout'>(</span><span class='str'>"processDTD: process parameter entities"</span><span class='layout'>)</span>
<a name="line-129"></a> <span class='varop'>>>></span>
<a name="line-130"></a> <span class='varid'>setParamString</span> <span class='varid'>a_standalone</span> <span class='str'>""</span>
<a name="line-131"></a> <span class='varop'>>>></span>
<a name="line-132"></a> <span class='layout'>(</span> <span class='varid'>addDocType</span>
<a name="line-133"></a> <span class='varop'>`whenNot`</span>
<a name="line-134"></a> <span class='layout'>(</span> <span class='varid'>getChildren</span> <span class='varop'>>>></span> <span class='varid'>isDTDDoctype</span> <span class='layout'>)</span>
<a name="line-135"></a> <span class='layout'>)</span>
<a name="line-136"></a> <span class='varop'>>>></span>
<a name="line-137"></a> <span class='varid'>processChildren</span> <span class='varid'>substParamEntities</span>
<a name="line-138"></a> <span class='varop'>>>></span>
<a name="line-139"></a> <span class='varid'>setDocumentStatusFromSystemState</span> <span class='str'>"in XML DTD processing"</span>
<a name="line-140"></a> <span class='layout'>)</span>
<a name="line-141"></a> <span class='varop'>`when`</span>
<a name="line-142"></a> <span class='varid'>documentStatusOk</span>
<a name="line-143"></a> <span class='keyword'>where</span>
<a name="line-144"></a> <span class='varid'>addDocType</span>
<a name="line-145"></a> <span class='keyglyph'>=</span> <span class='varid'>replaceChildren</span> <span class='layout'>(</span> <span class='layout'>(</span><span class='varid'>getChildren</span> <span class='varop'>>>></span> <span class='varid'>isXmlPi</span><span class='layout'>)</span>
<a name="line-146"></a> <span class='varop'><+></span>
<a name="line-147"></a> <span class='varid'>mkDTDDoctype</span> <span class='conid'>[]</span> <span class='varid'>none</span>
<a name="line-148"></a> <span class='varop'><+></span>
<a name="line-149"></a> <span class='layout'>(</span><span class='varid'>getChildren</span> <span class='varop'>>>></span> <span class='varid'>neg</span> <span class='varid'>isXmlPi</span><span class='layout'>)</span>
<a name="line-150"></a> <span class='layout'>)</span>
<a name="line-151"></a>
<a name="line-152"></a><a name="substParamEntities"></a><span class='definition'>substParamEntities</span> <span class='keyglyph'>::</span> <span class='conid'>IOStateArrow</span> <span class='varid'>s</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-153"></a><span class='definition'>substParamEntities</span>
<a name="line-154"></a> <span class='keyglyph'>=</span> <span class='varid'>withOtherUserState</span> <span class='varid'>emptyPeEnv</span> <span class='varid'>processParamEntities</span>
<a name="line-155"></a> <span class='varop'>`when`</span>
<a name="line-156"></a> <span class='varid'>isDTDDoctype</span>
<a name="line-157"></a> <span class='keyword'>where</span>
<a name="line-158"></a>
<a name="line-159"></a> <span class='varid'>processParamEntities</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-160"></a> <span class='varid'>processParamEntities</span>
<a name="line-161"></a> <span class='keyglyph'>=</span> <span class='varid'>mergeEntities</span> <span class='varop'>$<<<</span> <span class='layout'>(</span> <span class='varid'>listA</span> <span class='varid'>processPredef</span>
<a name="line-162"></a> <span class='varop'>&&&</span>
<a name="line-163"></a> <span class='varid'>listA</span> <span class='varid'>processInt</span>
<a name="line-164"></a> <span class='varop'>&&&</span>
<a name="line-165"></a> <span class='varid'>listA</span> <span class='layout'>(</span><span class='varid'>runInLocalURIContext</span> <span class='varid'>processExt</span><span class='layout'>)</span>
<a name="line-166"></a> <span class='layout'>)</span>
<a name="line-167"></a> <span class='keyword'>where</span>
<a name="line-168"></a> <span class='varid'>mergeEntities</span> <span class='varid'>dtdPre</span> <span class='varid'>dtdInt</span> <span class='varid'>dtdExt</span>
<a name="line-169"></a> <span class='keyglyph'>=</span> <span class='varid'>replaceChildren</span> <span class='layout'>(</span><span class='varid'>arrL</span> <span class='varop'>$</span> <span class='varid'>const</span> <span class='varop'>$</span> <span class='varid'>foldl1</span> <span class='varid'>mergeDTDs</span> <span class='keyglyph'>[</span><span class='varid'>dtdPre</span><span class='layout'>,</span> <span class='varid'>dtdInt</span><span class='layout'>,</span> <span class='varid'>dtdExt</span><span class='keyglyph'>]</span><span class='layout'>)</span>
<a name="line-170"></a>
<a name="line-171"></a> <span class='varid'>processPredef</span>
<a name="line-172"></a> <span class='keyglyph'>=</span> <span class='varid'>predefDTDPart</span> <span class='varop'>>>></span> <span class='varid'>substParamEntity</span> <span class='conid'>Internal</span> <span class='conid'>[]</span>
<a name="line-173"></a>
<a name="line-174"></a> <span class='varid'>processInt</span>
<a name="line-175"></a> <span class='keyglyph'>=</span> <span class='varid'>getChildren</span> <span class='varop'>>>></span> <span class='varid'>substParamEntity</span> <span class='conid'>Internal</span> <span class='conid'>[]</span>
<a name="line-176"></a>
<a name="line-177"></a> <span class='varid'>processExt</span>
<a name="line-178"></a> <span class='keyglyph'>=</span> <span class='varid'>externalDTDPart</span> <span class='varop'>>>></span> <span class='varid'>substParamEntity</span> <span class='conid'>External</span> <span class='conid'>[]</span>
<a name="line-179"></a>
<a name="line-180"></a> <span class='varid'>mergeDTDs</span> <span class='keyglyph'>::</span> <span class='conid'>XmlTrees</span> <span class='keyglyph'>-></span> <span class='conid'>XmlTrees</span> <span class='keyglyph'>-></span> <span class='conid'>XmlTrees</span>
<a name="line-181"></a> <span class='varid'>mergeDTDs</span> <span class='varid'>dtdInt</span> <span class='varid'>dtdExt</span>
<a name="line-182"></a> <span class='keyglyph'>=</span> <span class='varid'>dtdInt</span> <span class='varop'>++</span> <span class='layout'>(</span><span class='varid'>filter</span> <span class='layout'>(</span><span class='varid'>filterDTDNodes</span> <span class='varid'>dtdInt</span><span class='layout'>)</span> <span class='varid'>dtdExt</span><span class='layout'>)</span>
<a name="line-183"></a>
<a name="line-184"></a> <span class='varid'>filterDTDNodes</span> <span class='keyglyph'>::</span> <span class='conid'>XmlTrees</span> <span class='keyglyph'>-></span> <span class='conid'>XmlTree</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-185"></a> <span class='varid'>filterDTDNodes</span> <span class='varid'>dtdPart</span> <span class='varid'>t</span>
<a name="line-186"></a> <span class='keyglyph'>=</span> <span class='varid'>not</span> <span class='layout'>(</span><span class='varid'>any</span> <span class='layout'>(</span><span class='varid'>filterDTDNode</span> <span class='varid'>t</span><span class='layout'>)</span> <span class='varid'>dtdPart</span><span class='layout'>)</span>
<a name="line-187"></a>
<a name="line-188"></a> <span class='varid'>filterDTDNode</span> <span class='keyglyph'>::</span> <span class='conid'>XmlTree</span> <span class='keyglyph'>-></span> <span class='conid'>XmlTree</span> <span class='keyglyph'>-></span> <span class='conid'>Bool</span>
<a name="line-189"></a>
<a name="line-190"></a> <span class='varid'>filterDTDNode</span> <span class='varid'>t1</span> <span class='varid'>t2</span>
<a name="line-191"></a> <span class='keyglyph'>=</span> <span class='varid'>fromMaybe</span> <span class='conid'>False</span> <span class='varop'>$</span>
<a name="line-192"></a> <span class='keyword'>do</span>
<a name="line-193"></a> <span class='varid'>dp1</span> <span class='keyglyph'><-</span> <span class='conid'>XN</span><span class='varop'>.</span><span class='varid'>getDTDPart</span> <span class='varid'>t1</span>
<a name="line-194"></a> <span class='varid'>dp2</span> <span class='keyglyph'><-</span> <span class='conid'>XN</span><span class='varop'>.</span><span class='varid'>getDTDPart</span> <span class='varid'>t2</span>
<a name="line-195"></a> <span class='varid'>al1</span> <span class='keyglyph'><-</span> <span class='conid'>XN</span><span class='varop'>.</span><span class='varid'>getDTDAttrl</span> <span class='varid'>t1</span>
<a name="line-196"></a> <span class='varid'>al2</span> <span class='keyglyph'><-</span> <span class='conid'>XN</span><span class='varop'>.</span><span class='varid'>getDTDAttrl</span> <span class='varid'>t2</span>
<a name="line-197"></a> <span class='varid'>return</span> <span class='layout'>(</span> <span class='varid'>dp1</span> <span class='varop'>==</span> <span class='varid'>dp2</span>
<a name="line-198"></a> <span class='varop'>&&</span>
<a name="line-199"></a> <span class='layout'>(</span> <span class='varid'>dp1</span> <span class='varop'>`elem`</span> <span class='keyglyph'>[</span><span class='conid'>ELEMENT</span><span class='layout'>,</span> <span class='conid'>NOTATION</span><span class='layout'>,</span> <span class='conid'>ENTITY</span><span class='layout'>,</span> <span class='conid'>ATTLIST</span><span class='keyglyph'>]</span> <span class='layout'>)</span>
<a name="line-200"></a> <span class='varop'>&&</span>
<a name="line-201"></a> <span class='layout'>(</span> <span class='varid'>lookup</span> <span class='varid'>a_name</span> <span class='varid'>al1</span> <span class='varop'>==</span> <span class='varid'>lookup</span> <span class='varid'>a_name</span> <span class='varid'>al2</span> <span class='layout'>)</span>
<a name="line-202"></a> <span class='varop'>&&</span>
<a name="line-203"></a> <span class='layout'>(</span> <span class='varid'>dp1</span> <span class='varop'>/=</span> <span class='conid'>ATTLIST</span>
<a name="line-204"></a> <span class='varop'>||</span>
<a name="line-205"></a> <span class='varid'>lookup</span> <span class='varid'>a_value</span> <span class='varid'>al1</span> <span class='varop'>==</span> <span class='varid'>lookup</span> <span class='varid'>a_value</span> <span class='varid'>al2</span>
<a name="line-206"></a> <span class='layout'>)</span>
<a name="line-207"></a> <span class='layout'>)</span>
<a name="line-208"></a>
<a name="line-209"></a><a name="substParamEntity"></a><span class='definition'>substParamEntity</span> <span class='keyglyph'>::</span> <span class='conid'>DTDPart</span> <span class='keyglyph'>-></span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-210"></a><span class='definition'>substParamEntity</span> <span class='varid'>loc</span> <span class='varid'>recList</span>
<a name="line-211"></a> <span class='keyglyph'>=</span> <span class='varid'>choiceA</span>
<a name="line-212"></a> <span class='keyglyph'>[</span> <span class='varid'>isDTDEntity</span> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='varid'>traceDTD</span> <span class='str'>"ENTITY declaration before DTD declaration parsing"</span>
<a name="line-213"></a> <span class='varop'>>>></span>
<a name="line-214"></a> <span class='varid'>processChildren</span> <span class='layout'>(</span><span class='varid'>substPeRefsInDTDdecl</span> <span class='varid'>recList</span><span class='layout'>)</span>
<a name="line-215"></a> <span class='varop'>>>></span>
<a name="line-216"></a> <span class='varid'>parseXmlDTDdecl</span>
<a name="line-217"></a> <span class='varop'>>>></span>
<a name="line-218"></a> <span class='varid'>substRefsInEntityValue</span>
<a name="line-219"></a> <span class='varop'>>>></span>
<a name="line-220"></a> <span class='varid'>processEntityDecl</span>
<a name="line-221"></a> <span class='varop'>>>></span>
<a name="line-222"></a> <span class='varid'>traceDTD</span> <span class='str'>"ENTITY declaration after DTD declaration parsing"</span>
<a name="line-223"></a> <span class='layout'>)</span>
<a name="line-224"></a> <span class='layout'>,</span> <span class='layout'>(</span> <span class='varid'>isDTDElement</span>
<a name="line-225"></a> <span class='varop'><+></span>
<a name="line-226"></a> <span class='varid'>isDTDAttlist</span>
<a name="line-227"></a> <span class='varop'><+></span>
<a name="line-228"></a> <span class='varid'>isDTDNotation</span>
<a name="line-229"></a> <span class='layout'>)</span> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='varid'>traceDTD</span> <span class='str'>"DTD declaration before PE substitution"</span>
<a name="line-230"></a> <span class='varop'>>>></span>
<a name="line-231"></a> <span class='varid'>processChildren</span> <span class='layout'>(</span><span class='varid'>substPeRefsInDTDdecl</span> <span class='varid'>recList</span><span class='layout'>)</span>
<a name="line-232"></a> <span class='varop'>>>></span>
<a name="line-233"></a> <span class='varid'>parseXmlDTDdecl</span>
<a name="line-234"></a> <span class='varop'>>>></span>
<a name="line-235"></a> <span class='varid'>traceDTD</span> <span class='str'>"DTD declaration after DTD declaration parsing"</span>
<a name="line-236"></a> <span class='layout'>)</span>
<a name="line-237"></a> <span class='layout'>,</span> <span class='varid'>isDTDPERef</span> <span class='conop'>:-></span> <span class='varid'>substPeRefsInDTDpart</span> <span class='varid'>recList</span>
<a name="line-238"></a>
<a name="line-239"></a> <span class='layout'>,</span> <span class='varid'>isDTDCondSect</span> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='keyword'>if</span> <span class='varid'>loc</span> <span class='varop'>==</span> <span class='conid'>Internal</span>
<a name="line-240"></a> <span class='keyword'>then</span> <span class='varid'>issueErr</span> <span class='str'>"conditional sections in internal part of the DTD is not allowed"</span>
<a name="line-241"></a> <span class='keyword'>else</span> <span class='varid'>evalCondSect</span> <span class='varop'>$<</span> <span class='varid'>getDTDAttrValue</span> <span class='varid'>a_value</span>
<a name="line-242"></a> <span class='layout'>)</span>
<a name="line-243"></a> <span class='layout'>,</span> <span class='varid'>isCmt</span> <span class='conop'>:-></span> <span class='varid'>none</span>
<a name="line-244"></a> <span class='layout'>,</span> <span class='varid'>this</span> <span class='conop'>:-></span> <span class='varid'>this</span>
<a name="line-245"></a> <span class='keyglyph'>]</span>
<a name="line-246"></a> <span class='keyword'>where</span>
<a name="line-247"></a> <span class='varid'>processEntityDecl</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-248"></a> <span class='varid'>processEntityDecl</span>
<a name="line-249"></a> <span class='keyglyph'>=</span> <span class='varid'>choiceA</span>
<a name="line-250"></a> <span class='keyglyph'>[</span> <span class='varid'>isDTDEntity</span> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='varid'>ifA</span> <span class='layout'>(</span><span class='varid'>hasDTDAttr</span> <span class='varid'>k_system</span><span class='layout'>)</span>
<a name="line-251"></a> <span class='varid'>processExternalEntity</span>
<a name="line-252"></a> <span class='varid'>processInternalEntity</span>
<a name="line-253"></a> <span class='layout'>)</span>
<a name="line-254"></a> <span class='layout'>,</span> <span class='varid'>isDTDPEntity</span>
<a name="line-255"></a> <span class='conop'>:-></span> <span class='layout'>(</span> <span class='varid'>processParamEntity</span> <span class='varop'>$<</span> <span class='varid'>getDTDAttrValue</span> <span class='varid'>a_name</span> <span class='layout'>)</span>
<a name="line-256"></a> <span class='layout'>,</span> <span class='varid'>this</span> <span class='conop'>:-></span> <span class='varid'>none</span>
<a name="line-257"></a> <span class='keyglyph'>]</span>
<a name="line-258"></a> <span class='keyword'>where</span>
<a name="line-259"></a> <span class='varid'>processExternalEntity</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span> <span class='comment'>-- processing external entities is delayed until first usage</span>
<a name="line-260"></a> <span class='varid'>processExternalEntity</span> <span class='comment'>-- only the current base uri must be remembered</span>
<a name="line-261"></a> <span class='keyglyph'>=</span> <span class='varid'>setDTDAttrValue</span> <span class='varid'>a_url</span> <span class='varop'>$<</span> <span class='layout'>(</span> <span class='varid'>getDTDAttrValue</span> <span class='varid'>k_system</span> <span class='varop'>>>></span> <span class='varid'>mkAbsURI</span> <span class='layout'>)</span>
<a name="line-262"></a>
<a name="line-263"></a> <span class='varid'>processInternalEntity</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span> <span class='comment'>-- just combine all parts of the entity value</span>
<a name="line-264"></a> <span class='varid'>processInternalEntity</span> <span class='comment'>-- into one string</span>
<a name="line-265"></a> <span class='keyglyph'>=</span> <span class='varid'>replaceChildren</span> <span class='layout'>(</span><span class='varid'>xshow</span> <span class='varid'>getChildren</span> <span class='varop'>>>></span> <span class='varid'>mkText</span><span class='layout'>)</span>
<a name="line-266"></a>
<a name="line-267"></a> <span class='varid'>processParamEntity</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-268"></a> <span class='varid'>processParamEntity</span> <span class='varid'>peName</span>
<a name="line-269"></a> <span class='keyglyph'>=</span> <span class='varid'>ifA</span> <span class='layout'>(</span><span class='varid'>constA</span> <span class='varid'>peName</span> <span class='varop'>>>></span> <span class='varid'>getPeValue</span><span class='layout'>)</span>
<a name="line-270"></a> <span class='layout'>(</span> <span class='varid'>issueWarn</span> <span class='layout'>(</span><span class='str'>"parameter entity "</span> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>peName</span> <span class='varop'>++</span> <span class='str'>" already defined"</span><span class='layout'>)</span> <span class='layout'>)</span>
<a name="line-271"></a> <span class='layout'>(</span> <span class='layout'>(</span> <span class='varid'>ifA</span> <span class='layout'>(</span> <span class='varid'>hasDTDAttr</span> <span class='varid'>k_system</span> <span class='layout'>)</span> <span class='comment'>-- is external param entity ?</span>
<a name="line-272"></a> <span class='layout'>(</span> <span class='varid'>runInLocalURIContext</span> <span class='varid'>getExternalParamEntityValue</span> <span class='layout'>)</span>
<a name="line-273"></a> <span class='layout'>(</span> <span class='varid'>replaceChildren</span> <span class='layout'>(</span><span class='varid'>xshow</span> <span class='varid'>getChildren</span> <span class='varop'>>>></span> <span class='varid'>mkText</span><span class='layout'>)</span> <span class='layout'>)</span> <span class='comment'>-- just combine all parts of the entity value into one string</span>
<a name="line-274"></a> <span class='layout'>)</span>
<a name="line-275"></a> <span class='varop'>>>></span>
<a name="line-276"></a> <span class='varid'>addPe</span> <span class='varid'>peName</span>
<a name="line-277"></a> <span class='layout'>)</span>
<a name="line-278"></a>
<a name="line-279"></a> <span class='varid'>substPERef</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-280"></a> <span class='varid'>substPERef</span> <span class='varid'>pn</span>
<a name="line-281"></a> <span class='keyglyph'>=</span> <span class='varid'>choiceA</span>
<a name="line-282"></a> <span class='keyglyph'>[</span> <span class='varid'>isInternalRef</span> <span class='conop'>:-></span> <span class='varid'>issueErr</span> <span class='layout'>(</span><span class='str'>"a parameter entity reference of "</span> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>pn</span> <span class='varop'>++</span> <span class='str'>" occurs in the internal subset of the DTD"</span><span class='layout'>)</span>
<a name="line-283"></a> <span class='layout'>,</span> <span class='varid'>isUndefinedRef</span> <span class='conop'>:-></span> <span class='varid'>issueErr</span> <span class='layout'>(</span><span class='str'>"parameter entity "</span> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>pn</span> <span class='varop'>++</span> <span class='str'>" not found (forward reference?)"</span><span class='layout'>)</span>
<a name="line-284"></a> <span class='layout'>,</span> <span class='varid'>this</span> <span class='conop'>:-></span> <span class='varid'>substPE</span>
<a name="line-285"></a> <span class='keyglyph'>]</span>
<a name="line-286"></a> <span class='varop'>`when`</span>
<a name="line-287"></a> <span class='varid'>isDTDPERef</span>
<a name="line-288"></a> <span class='keyword'>where</span>
<a name="line-289"></a> <span class='varid'>isInternalRef</span> <span class='keyglyph'>=</span> <span class='varid'>isA</span> <span class='layout'>(</span><span class='varid'>const</span> <span class='layout'>(</span><span class='varid'>loc</span> <span class='varop'>==</span> <span class='conid'>Internal</span><span class='layout'>)</span><span class='layout'>)</span>
<a name="line-290"></a> <span class='varid'>peVal</span> <span class='keyglyph'>=</span> <span class='varid'>constA</span> <span class='varid'>pn</span> <span class='varop'>>>></span> <span class='varid'>getPeValue</span>
<a name="line-291"></a> <span class='varid'>isUndefinedRef</span> <span class='keyglyph'>=</span> <span class='varid'>neg</span> <span class='varid'>peVal</span>
<a name="line-292"></a> <span class='varid'>substPE</span>
<a name="line-293"></a> <span class='keyglyph'>=</span> <span class='varid'>replaceChildren</span> <span class='layout'>(</span><span class='varid'>peVal</span> <span class='varop'>>>></span> <span class='varid'>getChildren</span><span class='layout'>)</span> <span class='comment'>-- store PE value in children component</span>
<a name="line-294"></a> <span class='varop'>>>></span>
<a name="line-295"></a> <span class='layout'>(</span> <span class='layout'>(</span> <span class='varid'>setBase</span> <span class='varop'>$<</span> <span class='layout'>(</span><span class='varid'>peVal</span> <span class='varop'>>>></span> <span class='varid'>getDTDAttrValue</span> <span class='varid'>a_url</span><span class='layout'>)</span> <span class='layout'>)</span> <span class='comment'>-- store base uri for external refs</span>
<a name="line-296"></a> <span class='varop'>`orElse`</span>
<a name="line-297"></a> <span class='varid'>this</span>
<a name="line-298"></a> <span class='layout'>)</span>
<a name="line-299"></a> <span class='keyword'>where</span>
<a name="line-300"></a> <span class='varid'>setBase</span> <span class='varid'>uri</span> <span class='keyglyph'>=</span> <span class='varid'>setDTDAttrValue</span> <span class='varid'>a_url</span> <span class='varid'>uri</span>
<a name="line-301"></a>
<a name="line-302"></a> <span class='varid'>substRefsInEntityValue</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-303"></a> <span class='varid'>substRefsInEntityValue</span>
<a name="line-304"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='layout'>(</span> <span class='varid'>processChildren</span> <span class='layout'>(</span> <span class='varid'>transfCharRef</span>
<a name="line-305"></a> <span class='varop'>>>></span>
<a name="line-306"></a> <span class='varid'>substPeRefsInValue</span> <span class='conid'>[]</span>
<a name="line-307"></a> <span class='layout'>)</span>
<a name="line-308"></a> <span class='layout'>)</span>
<a name="line-309"></a> <span class='varop'>`whenNot`</span>
<a name="line-310"></a> <span class='varid'>hasDTDAttr</span> <span class='varid'>k_system</span> <span class='comment'>-- only apply for internal entities</span>
<a name="line-311"></a> <span class='layout'>)</span>
<a name="line-312"></a> <span class='varop'>`when`</span>
<a name="line-313"></a> <span class='layout'>(</span> <span class='varid'>isDTDEntity</span> <span class='varop'><+></span> <span class='varid'>isDTDPEntity</span> <span class='layout'>)</span> <span class='comment'>-- only apply for entity declarations</span>
<a name="line-314"></a>
<a name="line-315"></a> <span class='varid'>substPeRefsInDTDpart</span> <span class='keyglyph'>::</span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-316"></a> <span class='varid'>substPeRefsInDTDpart</span> <span class='varid'>rl</span>
<a name="line-317"></a> <span class='keyglyph'>=</span> <span class='varid'>recursionCheck</span> <span class='str'>"DTD part"</span> <span class='varid'>rl</span> <span class='varid'>subst</span>
<a name="line-318"></a> <span class='keyword'>where</span>
<a name="line-319"></a> <span class='varid'>subst</span> <span class='keyglyph'>::</span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-320"></a> <span class='varid'>subst</span> <span class='varid'>recl</span> <span class='varid'>pn</span>
<a name="line-321"></a> <span class='keyglyph'>=</span> <span class='varid'>substPERef</span> <span class='varid'>pn</span>
<a name="line-322"></a> <span class='varop'>>>></span>
<a name="line-323"></a> <span class='varid'>traceDTD</span> <span class='str'>"substPeRefsInDTDdecl: before parseXmlDTDPart"</span>
<a name="line-324"></a> <span class='varop'>>>></span>
<a name="line-325"></a> <span class='layout'>(</span> <span class='varid'>runInPeContext</span> <span class='layout'>(</span> <span class='varid'>getChildren</span>
<a name="line-326"></a> <span class='varop'>>>></span>
<a name="line-327"></a> <span class='layout'>(</span> <span class='layout'>(</span><span class='varid'>constA</span> <span class='layout'>(</span><span class='str'>"parameter entity: "</span> <span class='varop'>++</span> <span class='varid'>pn</span><span class='layout'>)</span><span class='layout'>)</span> <span class='varop'>&&&</span> <span class='varid'>this</span> <span class='layout'>)</span>
<a name="line-328"></a> <span class='varop'>>>></span>
<a name="line-329"></a> <span class='varid'>parseXmlDTDPart</span>
<a name="line-330"></a> <span class='varop'>>>></span>
<a name="line-331"></a> <span class='varid'>traceDTD</span> <span class='str'>"substPeRefsInDTDpart: after parseXmlDTDPart"</span>
<a name="line-332"></a> <span class='varop'>>>></span>
<a name="line-333"></a> <span class='varid'>substParamEntity</span> <span class='varid'>loc</span> <span class='layout'>(</span><span class='varid'>pn</span> <span class='conop'>:</span> <span class='varid'>recl</span><span class='layout'>)</span>
<a name="line-334"></a> <span class='layout'>)</span>
<a name="line-335"></a> <span class='varop'>`when`</span>
<a name="line-336"></a> <span class='varid'>isDTDPERef</span>
<a name="line-337"></a> <span class='layout'>)</span>
<a name="line-338"></a>
<a name="line-339"></a> <span class='varid'>substPeRefsInDTDdecl</span> <span class='keyglyph'>::</span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-340"></a> <span class='varid'>substPeRefsInDTDdecl</span> <span class='varid'>rl</span>
<a name="line-341"></a> <span class='keyglyph'>=</span> <span class='varid'>recursionCheck</span> <span class='str'>"DTD declaration"</span> <span class='varid'>rl</span> <span class='varid'>subst</span>
<a name="line-342"></a> <span class='keyword'>where</span>
<a name="line-343"></a> <span class='varid'>subst</span> <span class='keyglyph'>::</span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-344"></a> <span class='varid'>subst</span> <span class='varid'>recl</span> <span class='varid'>pn</span>
<a name="line-345"></a> <span class='keyglyph'>=</span> <span class='varid'>substPERef</span> <span class='varid'>pn</span>
<a name="line-346"></a> <span class='varop'>>>></span>
<a name="line-347"></a> <span class='varid'>traceDTD</span> <span class='str'>"substPeRefsInDTDdecl: before parseXmlDTDdeclPart"</span>
<a name="line-348"></a> <span class='varop'>>>></span>
<a name="line-349"></a> <span class='layout'>(</span> <span class='varid'>runInPeContext</span> <span class='layout'>(</span> <span class='varid'>parseXmlDTDdeclPart</span>
<a name="line-350"></a> <span class='varop'>>>></span>
<a name="line-351"></a> <span class='varid'>traceDTD</span> <span class='str'>"substPeRefsInDTDdecl: after parseXmlDTDdeclPart"</span>
<a name="line-352"></a> <span class='varop'>>>></span>
<a name="line-353"></a> <span class='varid'>processChildren</span> <span class='layout'>(</span> <span class='varid'>substPeRefsInDTDdecl</span> <span class='layout'>(</span><span class='varid'>pn</span> <span class='conop'>:</span> <span class='varid'>recl</span><span class='layout'>)</span> <span class='layout'>)</span>
<a name="line-354"></a> <span class='layout'>)</span>
<a name="line-355"></a> <span class='varop'>`when`</span>
<a name="line-356"></a> <span class='varid'>isDTDPERef</span>
<a name="line-357"></a> <span class='layout'>)</span>
<a name="line-358"></a>
<a name="line-359"></a> <span class='varid'>substPeRefsInValue</span> <span class='keyglyph'>::</span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-360"></a> <span class='varid'>substPeRefsInValue</span> <span class='varid'>rl</span>
<a name="line-361"></a> <span class='keyglyph'>=</span> <span class='varid'>recursionCheck</span> <span class='str'>"entity value"</span> <span class='varid'>rl</span> <span class='varid'>subst</span>
<a name="line-362"></a> <span class='keyword'>where</span>
<a name="line-363"></a> <span class='varid'>subst</span> <span class='keyglyph'>::</span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-364"></a> <span class='varid'>subst</span> <span class='varid'>recl</span> <span class='varid'>pn</span>
<a name="line-365"></a> <span class='keyglyph'>=</span> <span class='varid'>substPERef</span> <span class='varid'>pn</span>
<a name="line-366"></a> <span class='varop'>>>></span>
<a name="line-367"></a> <span class='varid'>parseXmlDTDEntityValue</span>
<a name="line-368"></a> <span class='varop'>>>></span>
<a name="line-369"></a> <span class='varid'>transfCharRef</span>
<a name="line-370"></a> <span class='varop'>>>></span>
<a name="line-371"></a> <span class='varid'>substPeRefsInValue</span> <span class='layout'>(</span><span class='varid'>pn</span> <span class='conop'>:</span> <span class='varid'>recl</span><span class='layout'>)</span>
<a name="line-372"></a>
<a name="line-373"></a> <span class='varid'>substPeRefsInCondSect</span> <span class='keyglyph'>::</span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-374"></a> <span class='varid'>substPeRefsInCondSect</span> <span class='varid'>rl</span>
<a name="line-375"></a> <span class='keyglyph'>=</span> <span class='varid'>recursionCheck</span> <span class='str'>"conditional section"</span> <span class='varid'>rl</span> <span class='varid'>subst</span>
<a name="line-376"></a> <span class='keyword'>where</span>
<a name="line-377"></a> <span class='varid'>subst</span> <span class='keyglyph'>::</span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-378"></a> <span class='varid'>subst</span> <span class='varid'>recl</span> <span class='varid'>pn</span>
<a name="line-379"></a> <span class='keyglyph'>=</span> <span class='varid'>substPERef</span> <span class='varid'>pn</span>
<a name="line-380"></a> <span class='varop'>>>></span>
<a name="line-381"></a> <span class='varid'>traceDTD</span> <span class='str'>"substPeRefsInCondSect: parseXmlDTDdeclPart"</span>
<a name="line-382"></a> <span class='varop'>>>></span>
<a name="line-383"></a> <span class='varid'>runInPeContext</span> <span class='layout'>(</span> <span class='varid'>parseXmlDTDdeclPart</span>
<a name="line-384"></a> <span class='varop'>>>></span>
<a name="line-385"></a> <span class='varid'>traceDTD</span> <span class='str'>"substPeRefsInCondSect: after parseXmlDTDdeclPart"</span>
<a name="line-386"></a> <span class='varop'>>>></span>
<a name="line-387"></a> <span class='varid'>processChildren</span> <span class='layout'>(</span> <span class='varid'>substPeRefsInCondSect</span> <span class='layout'>(</span><span class='varid'>pn</span> <span class='conop'>:</span> <span class='varid'>recl</span><span class='layout'>)</span> <span class='layout'>)</span>
<a name="line-388"></a> <span class='layout'>)</span>
<a name="line-389"></a>
<a name="line-390"></a> <span class='varid'>recursionCheck</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='layout'>(</span><span class='conid'>RecList</span> <span class='keyglyph'>-></span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span><span class='layout'>)</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-391"></a> <span class='varid'>recursionCheck</span> <span class='varid'>wher</span> <span class='varid'>rl</span> <span class='varid'>subst</span>
<a name="line-392"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>recusiveSubst</span> <span class='varop'>$<</span> <span class='varid'>getDTDAttrValue</span> <span class='varid'>a_peref</span> <span class='layout'>)</span>
<a name="line-393"></a> <span class='varop'>`when`</span>
<a name="line-394"></a> <span class='varid'>isDTDPERef</span>
<a name="line-395"></a> <span class='keyword'>where</span>
<a name="line-396"></a> <span class='varid'>recusiveSubst</span> <span class='varid'>name</span>
<a name="line-397"></a> <span class='keyglyph'>|</span> <span class='varid'>name</span> <span class='varop'>`elem`</span> <span class='varid'>rl</span>
<a name="line-398"></a> <span class='keyglyph'>=</span> <span class='varid'>issueErr</span> <span class='layout'>(</span><span class='str'>"recursive call of parameter entity "</span> <span class='varop'>++</span> <span class='varid'>show</span> <span class='varid'>name</span> <span class='varop'>++</span> <span class='str'>" in "</span> <span class='varop'>++</span> <span class='varid'>wher</span><span class='layout'>)</span>
<a name="line-399"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span>
<a name="line-400"></a> <span class='keyglyph'>=</span> <span class='varid'>subst</span> <span class='varid'>rl</span> <span class='varid'>name</span>
<a name="line-401"></a>
<a name="line-402"></a> <span class='varid'>runInPeContext</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-403"></a> <span class='varid'>runInPeContext</span> <span class='varid'>f</span>
<a name="line-404"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>runWithNewBase</span> <span class='varop'>$<</span> <span class='varid'>getDTDAttrValue</span> <span class='varid'>a_url</span> <span class='layout'>)</span>
<a name="line-405"></a> <span class='varop'>`orElse`</span>
<a name="line-406"></a> <span class='varid'>f</span>
<a name="line-407"></a> <span class='keyword'>where</span>
<a name="line-408"></a> <span class='varid'>runWithNewBase</span> <span class='varid'>base</span>
<a name="line-409"></a> <span class='keyglyph'>=</span> <span class='varid'>runInLocalURIContext</span>
<a name="line-410"></a> <span class='layout'>(</span> <span class='varid'>perform</span> <span class='layout'>(</span><span class='varid'>constA</span> <span class='varid'>base</span> <span class='varop'>>>></span> <span class='varid'>setBaseURI</span><span class='layout'>)</span>
<a name="line-411"></a> <span class='varop'>>>></span>
<a name="line-412"></a> <span class='varid'>f</span>
<a name="line-413"></a> <span class='layout'>)</span>
<a name="line-414"></a>
<a name="line-415"></a> <span class='varid'>evalCondSect</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-416"></a> <span class='varid'>evalCondSect</span> <span class='varid'>content</span>
<a name="line-417"></a> <span class='keyglyph'>=</span> <span class='varid'>traceDTD</span> <span class='str'>"evalCondSect: process conditional section"</span>
<a name="line-418"></a> <span class='varop'>>>></span>
<a name="line-419"></a> <span class='varid'>processChildren</span> <span class='layout'>(</span><span class='varid'>substPeRefsInCondSect</span> <span class='conid'>[]</span><span class='layout'>)</span>
<a name="line-420"></a> <span class='varop'>>>></span>
<a name="line-421"></a> <span class='varid'>parseXmlDTDdecl</span>
<a name="line-422"></a> <span class='varop'>>>></span>
<a name="line-423"></a> <span class='layout'>(</span> <span class='varid'>hasText</span> <span class='layout'>(</span><span class='varop'>==</span> <span class='varid'>k_include</span><span class='layout'>)</span>
<a name="line-424"></a> <span class='varop'>`guards`</span>
<a name="line-425"></a> <span class='layout'>(</span> <span class='layout'>(</span> <span class='varid'>constA</span> <span class='str'>"conditional section"</span> <span class='varop'>&&&</span> <span class='varid'>txt</span> <span class='varid'>content</span> <span class='layout'>)</span>
<a name="line-426"></a> <span class='varop'>>>></span>
<a name="line-427"></a> <span class='varid'>parseXmlDTDPart</span>
<a name="line-428"></a> <span class='varop'>>>></span>
<a name="line-429"></a> <span class='varid'>traceMsg</span> <span class='num'>2</span> <span class='str'>"evalCond: include DTD part"</span>
<a name="line-430"></a> <span class='varop'>>>></span>
<a name="line-431"></a> <span class='varid'>substParamEntity</span> <span class='conid'>External</span> <span class='varid'>recList</span>
<a name="line-432"></a> <span class='layout'>)</span>
<a name="line-433"></a> <span class='layout'>)</span>
<a name="line-434"></a>
<a name="line-435"></a><a name="predefDTDPart"></a><span class='definition'>predefDTDPart</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-436"></a><span class='definition'>predefDTDPart</span>
<a name="line-437"></a> <span class='keyglyph'>=</span> <span class='layout'>(</span> <span class='varid'>constA</span> <span class='str'>"predefined entities"</span>
<a name="line-438"></a> <span class='varop'>&&&</span>
<a name="line-439"></a> <span class='layout'>(</span> <span class='varid'>constA</span> <span class='varid'>predefinedEntities</span> <span class='varop'>>>></span> <span class='varid'>mkText</span><span class='layout'>)</span>
<a name="line-440"></a> <span class='layout'>)</span>
<a name="line-441"></a> <span class='varop'>>>></span>
<a name="line-442"></a> <span class='varid'>parseXmlDTDPart</span>
<a name="line-443"></a> <span class='keyword'>where</span>
<a name="line-444"></a> <span class='varid'>predefinedEntities</span> <span class='keyglyph'>::</span> <span class='conid'>String</span>
<a name="line-445"></a> <span class='varid'>predefinedEntities</span>
<a name="line-446"></a> <span class='keyglyph'>=</span> <span class='varid'>concat</span> <span class='keyglyph'>[</span> <span class='str'>"<!ENTITY lt '&#38;#60;'>"</span>
<a name="line-447"></a> <span class='layout'>,</span> <span class='str'>"<!ENTITY gt '&#62;'>"</span>
<a name="line-448"></a> <span class='layout'>,</span> <span class='str'>"<!ENTITY amp '&#38;#38;'>"</span>
<a name="line-449"></a> <span class='layout'>,</span> <span class='str'>"<!ENTITY apos '&#39;'>"</span>
<a name="line-450"></a> <span class='layout'>,</span> <span class='str'>"<!ENTITY quot '&#34;'>"</span>
<a name="line-451"></a> <span class='keyglyph'>]</span>
<a name="line-452"></a>
<a name="line-453"></a><a name="externalDTDPart"></a><span class='definition'>externalDTDPart</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-454"></a><span class='definition'>externalDTDPart</span>
<a name="line-455"></a> <span class='keyglyph'>=</span> <span class='varid'>isDTDDoctype</span>
<a name="line-456"></a> <span class='varop'>`guards`</span>
<a name="line-457"></a> <span class='layout'>(</span> <span class='varid'>hasDTDAttr</span> <span class='varid'>k_system</span>
<a name="line-458"></a> <span class='varop'>`guards`</span>
<a name="line-459"></a> <span class='layout'>(</span> <span class='varid'>getExternalDTDPart</span> <span class='varop'>$<</span> <span class='varid'>getDTDAttrValue</span> <span class='varid'>k_system</span> <span class='layout'>)</span>
<a name="line-460"></a> <span class='layout'>)</span>
<a name="line-461"></a>
<a name="line-462"></a><a name="getExternalDTDPart"></a><span class='definition'>getExternalDTDPart</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-463"></a><span class='definition'>getExternalDTDPart</span> <span class='varid'>src</span>
<a name="line-464"></a> <span class='keyglyph'>=</span> <span class='varid'>root</span> <span class='keyglyph'>[</span><span class='varid'>sattr</span> <span class='varid'>a_source</span> <span class='varid'>src</span><span class='keyglyph'>]</span> <span class='conid'>[]</span>
<a name="line-465"></a> <span class='varop'>>>></span>
<a name="line-466"></a> <span class='varid'>getXmlEntityContents</span>
<a name="line-467"></a> <span class='varop'>>>></span>
<a name="line-468"></a> <span class='varid'>replaceChildren</span> <span class='layout'>(</span> <span class='layout'>(</span> <span class='varid'>constA</span> <span class='varid'>src</span> <span class='varop'>&&&</span> <span class='varid'>getChildren</span> <span class='layout'>)</span>
<a name="line-469"></a> <span class='varop'>>>></span>
<a name="line-470"></a> <span class='varid'>parseXmlDTDPart</span>
<a name="line-471"></a> <span class='layout'>)</span>
<a name="line-472"></a> <span class='varop'>>>></span>
<a name="line-473"></a> <span class='varid'>traceDoc</span> <span class='str'>"processExternalDTD: parsing DTD part done"</span>
<a name="line-474"></a> <span class='varop'>>>></span>
<a name="line-475"></a> <span class='varid'>getChildren</span>
<a name="line-476"></a>
<a name="line-477"></a><a name="getExternalParamEntityValue"></a><span class='definition'>getExternalParamEntityValue</span> <span class='keyglyph'>::</span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-478"></a><span class='definition'>getExternalParamEntityValue</span>
<a name="line-479"></a> <span class='keyglyph'>=</span> <span class='varid'>isDTDPEntity</span>
<a name="line-480"></a> <span class='varop'>`guards`</span>
<a name="line-481"></a> <span class='layout'>(</span> <span class='varid'>setEntityValue</span> <span class='varop'>$<<<</span> <span class='layout'>(</span> <span class='varid'>getDTDAttrl</span>
<a name="line-482"></a> <span class='varop'>&&&</span>
<a name="line-483"></a> <span class='varid'>listA</span> <span class='layout'>(</span> <span class='varid'>getEntityValue</span> <span class='varop'>$<</span> <span class='varid'>getDTDAttrl</span> <span class='layout'>)</span>
<a name="line-484"></a> <span class='varop'>&&&</span>
<a name="line-485"></a> <span class='varid'>getBaseURI</span>
<a name="line-486"></a> <span class='layout'>)</span>
<a name="line-487"></a> <span class='layout'>)</span>
<a name="line-488"></a> <span class='keyword'>where</span>
<a name="line-489"></a> <span class='varid'>getEntityValue</span> <span class='keyglyph'>::</span> <span class='conid'>Attributes</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-490"></a> <span class='varid'>getEntityValue</span> <span class='varid'>al</span>
<a name="line-491"></a> <span class='keyglyph'>=</span> <span class='varid'>root</span> <span class='keyglyph'>[</span><span class='varid'>sattr</span> <span class='varid'>a_source</span> <span class='layout'>(</span><span class='varid'>lookup1</span> <span class='varid'>k_system</span> <span class='varid'>al</span><span class='layout'>)</span><span class='comment'>{- <+> catA (map (uncurry sattr) al)-}</span><span class='keyglyph'>]</span> <span class='conid'>[]</span>
<a name="line-492"></a> <span class='varop'>>>></span>
<a name="line-493"></a> <span class='varid'>getXmlEntityContents</span>
<a name="line-494"></a> <span class='varop'>>>></span>
<a name="line-495"></a> <span class='varid'>traceMsg</span> <span class='num'>2</span> <span class='str'>"getExternalParamEntityValue: contents read"</span>
<a name="line-496"></a> <span class='varop'>>>></span>
<a name="line-497"></a> <span class='varid'>getChildren</span>
<a name="line-498"></a>
<a name="line-499"></a> <span class='varid'>setEntityValue</span> <span class='keyglyph'>::</span> <span class='conid'>Attributes</span> <span class='keyglyph'>-></span> <span class='conid'>XmlTrees</span> <span class='keyglyph'>-></span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-500"></a> <span class='varid'>setEntityValue</span> <span class='varid'>al</span> <span class='varid'>res</span> <span class='varid'>base</span>
<a name="line-501"></a> <span class='keyglyph'>|</span> <span class='varid'>null</span> <span class='varid'>res</span>
<a name="line-502"></a> <span class='keyglyph'>=</span> <span class='varid'>issueErr</span> <span class='layout'>(</span><span class='str'>"illegal external parameter entity value for entity %"</span> <span class='varop'>++</span> <span class='varid'>peName</span> <span class='varop'>++</span><span class='str'>";"</span><span class='layout'>)</span>
<a name="line-503"></a> <span class='keyglyph'>|</span> <span class='varid'>otherwise</span>
<a name="line-504"></a> <span class='keyglyph'>=</span> <span class='varid'>mkDTDElem</span> <span class='conid'>PENTITY</span> <span class='layout'>(</span><span class='layout'>(</span><span class='varid'>a_url</span><span class='layout'>,</span> <span class='varid'>base</span><span class='layout'>)</span> <span class='conop'>:</span> <span class='varid'>al</span><span class='layout'>)</span> <span class='layout'>(</span><span class='varid'>arrL</span> <span class='varop'>$</span> <span class='varid'>const</span> <span class='varid'>res</span><span class='layout'>)</span>
<a name="line-505"></a> <span class='keyword'>where</span>
<a name="line-506"></a> <span class='varid'>peName</span> <span class='keyglyph'>=</span> <span class='varid'>lookup1</span> <span class='varid'>a_name</span> <span class='varid'>al</span>
<a name="line-507"></a>
<a name="line-508"></a><a name="traceDTD"></a><span class='definition'>traceDTD</span> <span class='keyglyph'>::</span> <span class='conid'>String</span> <span class='keyglyph'>-></span> <span class='conid'>DTDStateArrow</span> <span class='conid'>XmlTree</span> <span class='conid'>XmlTree</span>
<a name="line-509"></a><span class='definition'>traceDTD</span> <span class='varid'>msg</span> <span class='keyglyph'>=</span> <span class='varid'>traceMsg</span> <span class='num'>3</span> <span class='varid'>msg</span> <span class='varop'>>>></span> <span class='varid'>traceTree</span>
<a name="line-510"></a>
<a name="line-511"></a><span class='comment'>-- ------------------------------------------------------------</span>
<a name="line-512"></a>
<a name="line-513"></a>
</pre></body>
</html>