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WebKit transformToDocument() failing with large XML

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Subject: WebKit transformToDocument() failing with large XML
From: "Dustin N. Jenkins" <Dustin.Jenkins@xxxxxxxxxxxxxx>
Date: Tue, 06 Sep 2011 15:07:54 -0700
WebKit transformToDocument() failing with large XML
I have a bug with WebKit ( https://bugs.webkit.org/show_bug.cgi?id=67310) for large XML documents (> 3MB) that are being run through one XSL file.

With both Safari 5.1, and Google Chrome 13.0.782.220 this happens.

If I run the XSL file using xsltproc, I get this error, but it still produces something:

runtime error: file filter.xsl line 134 element param
xsltApplyXSLTTemplate: A potential infinite template recursion was detected.

I'm not sure where the endless recursion would come from. I've posted my XSL file, which is called filter.xsl:

<code>
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:vo="http://www.ivoa.net/xml/VOTable/v1.1"
                xmlns:v1="http://vizier.u-strasbg.fr/VOTable"
                xmlns:v2="http://vizier.u-strasbg.fr/xml/VOTable-1.1.xsd"
                xmlns:v3="http://www.ivoa.net/xml/VOTable/v1.0"
                xmlns:v4="http://www.ivoa.net/xml/VOTable/v1.2"
                exclude-result-prefixes="vo v1 v2 v3 v4" version="1.0">

<xsl:output method="xml" />

<xsl:variable name="allRows"
select="/VOTABLE/RESOURCE/TABLE/DATA/TABLEDATA/TR"/>
<xsl:variable name="allRows0"
select="/vo:VOTABLE/vo:RESOURCE/vo:TABLE/vo:DATA/vo:TABLEDATA/vo:TR"/>
<xsl:variable name="allRows1"
select="/v1:VOTABLE/v1:RESOURCE/v1:TABLE/v1:DATA/v1:TABLEDATA/v1:TR"/>
<xsl:variable name="allRows2"
select="/v2:VOTABLE/v2:RESOURCE/v2:TABLE/v2:DATA/v2:TABLEDATA/v2:TR"/>
<xsl:variable name="allRows3"
select="/v3:VOTABLE/v3:RESOURCE/v3:TABLE/v3:DATA/v3:TABLEDATA/v3:TR"/>
<xsl:variable name="allRows4"
select="/v4:VOTABLE/v4:RESOURCE/v4:TABLE/v4:DATA/v4:TABLEDATA/v4:TR"/>

<xsl:variable name="filterRows" select="$allRows[__filterExp__]"/>
<xsl:variable name="filterRows0" select="$allRows0[__filterExp__]"/>
<xsl:variable name="filterRows1" select="$allRows1[__filterExp__]"/>
<xsl:variable name="filterRows2" select="$allRows2[__filterExp__]"/>
<xsl:variable name="filterRows3" select="$allRows3[__filterExp__]"/>
<xsl:variable name="filterRows4" select="$allRows4[__filterExp__]"/>

<!--
<xsl:variable name="filterRows" select="$allRows"/>
<xsl:variable name="filterRows0" select="$allRows0"/>
<xsl:variable name="filterRows1" select="$allRows1"/>
<xsl:variable name="filterRows2" select="$allRows2"/>
<xsl:variable name="filterRows3" select="$allRows3"/>
<xsl:variable name="filterRows4" select="$allRows4"/>
  -->

<!--
<xsl:variable name="filterRows" select="$allRows[TD[7]/@val&gt;0]"/>
<xsl:variable name="filterRows0" select="$allRows0[vo:TD[7]/@val&gt;0]"/>
<xsl:variable name="filterRows1" select="$allRows1[v1:TD[7]/@val&gt;0]"/>
<xsl:variable name="filterRows2" select="$allRows2[v2:TD[7]/@val&gt;0]"/>
<xsl:variable name="filterRows3" select="$allRows3[v3:TD[7]/@val&gt;0]"/>
<xsl:variable name="filterRows4" select="$allRows4[v4:TD[7]/@val&gt;0]"/>
  -->

<xsl:variable name="nrows"
select="count($allRows)+count($allRows0)+count($allRows1)+count($allRows2)+count($allRows3)+count($allRows4)"/>

<xsl:param name="sortOrder">ascending</xsl:param>
<xsl:param name="sortColumn">1</xsl:param>
<xsl:param name="pageStart">1</xsl:param>
<xsl:param name="pageEnd" select="$nrows"/>
<xsl:param name="selectAllCriteria" />

<xsl:variable name="fieldlist"
select="/VOTABLE/RESOURCE/TABLE/FIELD|/vo:VOTABLE/vo:RESOURCE/vo:TABLE/vo:FIELD|/v1:VOTABLE/v1:RESOURCE/v1:TABLE/v1:FIELD|/v2:VOTABLE/v2:RESOURCE/v2:TABLE/v2:FIELD|/v3:VOTABLE/v3:RESOURCE/v3:TABLE/v3:FIELD|/v4:VOTABLE/v4:RESOURCE/v4:TABLE/v4:FIELD"/>
<xsl:variable name="paramlist"
select="/VOTABLE/RESOURCE/PARAM|/vo:VOTABLE/vo:RESOURCE/vo:PARAM|/v1:VOTABLE/v1:RESOURCE/v1:PARAM|/v2:VOTABLE/v2:RESOURCE/v2:PARAM|/v3:VOTABLE/v3:RESOURCE/v3:PARAM|/v4:VOTABLE/v4:RESOURCE/v4:PARAM"/>

<xsl:variable name="lc" select="'abcdefghijklmnopqrstuvwxyz'"/>
<xsl:variable name="uc" select="'ABCDEFGHIJKLMNOPQRSTUVWXYZ'"/>

<xsl:variable name="sortColumnNum">
<xsl:if test="$sortColumn != ''">
<xsl:choose>
<xsl:when test="string(number($sortColumn))='NaN'">
<xsl:call-template name="getColumnByName">
<xsl:with-param name="value" select="$sortColumn"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="number($sortColumn)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:if>

</xsl:variable>

<xsl:variable name="datatype">
<xsl:choose>
<xsl:when test="$sortColumnNum=''">text</xsl:when>
<xsl:otherwise>
<xsl:for-each select="$fieldlist[position()=$sortColumnNum]">
<xsl:choose>
<xsl:when test="not(@arraysize) and (@datatype='float' or @datatype='double' or @datatype='int' or @datatype='long' or @datatype='short' or @datatype='unsignedByte' or @datatype='bit')">
number
</xsl:when>
<xsl:otherwise>text</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>

<xsl:template name="getColumnByName">
<xsl:param name="value"/>
<xsl:variable name="tvalue" select="translate($value,$lc,$uc)"/>
<xsl:for-each select="$fieldlist">
<xsl:variable name="ID">
<xsl:call-template name="getID"/>
</xsl:variable>
<xsl:if test="translate($ID,$lc,$uc) = $tvalue">
<xsl:value-of select="position()"/>
</xsl:if>
</xsl:for-each>
</xsl:template>

<!-- ID is primary FIELD identifier (fall back to name if ID is not available) -->

<xsl:template name="getID">
<xsl:choose>
<xsl:when test="@ID">
<xsl:value-of select="@ID"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="@name"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>

<xsl:template name="selectAllList">
<xsl:call-template name="selectAllTemplate">
<xsl:with-param name="rowList"
select="/VOTABLE/RESOURCE/TABLE/DATA/TABLEDATA/TR|/vo:VOTABLE/vo:RESOURCE/vo:TABLE/vo:DATA/vo:TABLEDATA/vo:TR|/v1:VOTABLE/v1:RESOURCE/v1:TABLE/v1:DATA/v1:TABLEDATA/v1:TR|/v2:VOTABLE/v2:RESOURCE/v2:TABLE/v2:DATA/v2:TABLEDATA/v2:TR|/v3:VOTABLE/v3:RESOURCE/v3:TABLE/v3:DATA/v3:TABLEDATA/v3:TR|/v4:VOTABLE/v4:RESOURCE/v4:TABLE/v4:DATA/v4:TABLEDATA/v4:TR"/>
<xsl:with-param name="delimiter" />
</xsl:call-template>
</xsl:template>

<xsl:template name="selectAllTemplate">
<xsl:param name="rowList" />
<xsl:param name="delimiter" />
<xsl:choose>
<xsl:when test="$selectAllCriteria=''">
<xsl:value-of select="$delimiter" />
<xsl:value-of select="$rowList[position()=1]/@vovid" />
</xsl:when>
<xsl:when test="contains($rowList[position()=1], $selectAllCriteria) and $rowList[position()=1]/@vovid">
<xsl:value-of select="$delimiter" />
<xsl:value-of select="$rowList[position()=1]/@vovid" />
</xsl:when>
</xsl:choose>
<xsl:if test="count($rowList) &gt; 0">
<xsl:call-template name="selectAllTemplate">
<xsl:with-param name="rowList" select="$rowList[position() != 1]"/>
<xsl:with-param name="delimiter">,</xsl:with-param>
</xsl:call-template>
</xsl:if>
</xsl:template>

<xsl:template match="TABLE|vo:TABLE|v1:TABLE|v2:TABLE|v3:TABLE|v4:TABLE">
<xsl:variable name="inputSpace">
<xsl:value-of select="namespace-uri()"/>
</xsl:variable>
<xsl:element name="PARAM" namespace="{$inputSpace}">
<xsl:attribute name="datatype">int</xsl:attribute>
<xsl:attribute name="ID">VOV:TotalCount</xsl:attribute>
<xsl:attribute name="value">
<xsl:value-of select="$nrows"/>
</xsl:attribute>
</xsl:element>
<xsl:element name="PARAM" namespace="{$inputSpace}">
<xsl:attribute name="datatype">int</xsl:attribute>
<xsl:attribute name="ID">VOV:FilterCount</xsl:attribute>
<xsl:attribute name="value">
<xsl:value-of
select="count($filterRows)+count($filterRows0)+count($filterRows1)+count($filterRows2)+count($filterRows3)+count($filterRows4)"/>
</xsl:attribute>
</xsl:element>
<xsl:element name="PARAM" namespace="{$inputSpace}">
<xsl:attribute name="datatype">int</xsl:attribute>
<xsl:attribute name="ID">VOV:SelectAllRows</xsl:attribute>
<xsl:attribute name="value">
<xsl:call-template name="selectAllList"/>
</xsl:attribute>
</xsl:element>
<xsl:element name="PARAM" namespace="{$inputSpace}">
<xsl:attribute name="datatype">int</xsl:attribute>
<xsl:attribute name="ID">VOV:PageStart</xsl:attribute>
<xsl:attribute name="value">
<xsl:value-of select="$pageStart"/>
</xsl:attribute>
</xsl:element>
<xsl:element name="PARAM" namespace="{$inputSpace}">
<xsl:attribute name="datatype">int</xsl:attribute>
<xsl:attribute name="ID">VOV:PageEnd</xsl:attribute>
<xsl:attribute name="value">
<xsl:value-of select="$pageEnd"/>
</xsl:attribute>
</xsl:element>
<xsl:element name="PARAM" namespace="{$inputSpace}">
<xsl:attribute name="datatype">int</xsl:attribute>
<xsl:attribute name="ID">VOV:SortColumnsList</xsl:attribute>
<xsl:attribute name="value">
<xsl:choose>
<xsl:when test="$sortOrder = 'ascending'">+</xsl:when>
<xsl:when test="$sortOrder = 'descending'">-</xsl:when>
</xsl:choose>
<xsl:value-of select="$sortColumn"/>
</xsl:attribute>
</xsl:element>
<xsl:copy>
<xsl:apply-templates/>
</xsl:copy>
</xsl:template>

<xsl:template match="TABLEDATA|vo:TABLEDATA|v1:TABLEDATA|v2:TABLEDATA|v3:TABLEDATA|v4:TABLEDATA">
<xsl:copy>
<xsl:for-each select="$filterRows|$filterRows0|$filterRows1|$filterRows2|$filterRows3|$filterRows4">
<xsl:sort select="TD[position()=$sortColumnNum]/@val"
order="{$sortOrder}" data-type="{$datatype}"/>
<xsl:sort select="TD[position()=$sortColumnNum]" order="{$sortOrder}"
data-type="{$datatype}"/>
<xsl:sort select="vo:TD[position()=$sortColumnNum]/@val"
order="{$sortOrder}" data-type="{$datatype}"/>
<xsl:sort select="vo:TD[position()=$sortColumnNum]" order="{$sortOrder}"
data-type="{$datatype}"/>
<xsl:sort select="v1:TD[position()=$sortColumnNum]/@val"
order="{$sortOrder}" data-type="{$datatype}"/>
<xsl:sort select="v1:TD[position()=$sortColumnNum]" order="{$sortOrder}"
data-type="{$datatype}"/>
<xsl:sort select="v2:TD[position()=$sortColumnNum]/@val"
order="{$sortOrder}" data-type="{$datatype}"/>
<xsl:sort select="v2:TD[position()=$sortColumnNum]" order="{$sortOrder}"
data-type="{$datatype}"/>
<xsl:sort select="v3:TD[position()=$sortColumnNum]/@val"
order="{$sortOrder}" data-type="{$datatype}"/>
<xsl:sort select="v3:TD[position()=$sortColumnNum]" order="{$sortOrder}"
data-type="{$datatype}"/>
<xsl:sort select="v4:TD[position()=$sortColumnNum]/@val"
order="{$sortOrder}" data-type="{$datatype}"/>
<xsl:sort select="v4:TD[position()=$sortColumnNum]" order="{$sortOrder}"
data-type="{$datatype}"/>
<xsl:if test="not (position() &lt; $pageStart or position() &gt; $pageEnd)">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:if>
</xsl:for-each>
</xsl:copy>
</xsl:template>

<xsl:template match="@*|node()">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>

<xsl:template name="start" match="/">
<xsl:copy>
<xsl:apply-templates />
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
</code>

The XML source file might be a bit large to post here, but it's attached to the bug report from above.

Anyone else experience this?

Many thanks,
Dustin

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