RE: [xsl] Too many apply-templates call error -- can't figure out what causes the error

[UlyLee <ulyleeka@xxxxxxxxx>]

Hi Michael,

I actually devised a way so that i would not always
process the whole 14000 list of strings in each pass
of the function so that i will not create a stack
overflow. what i did was i would place in another
variable the strings in the $WordList that are
contained in the text() node being processed and so
far its working :D.

<xsl:template match="text()[name(parent::*)!=$Tag]">
<xsl:variable name="x" as="xs:string" select="."/>
<xsl:variable name="srchStr" as="xs:string*">
<xsl:for-each select="$wordLst">
<xsl:if test="contains($x,.)">
<xsl:value-of select="."/>
</xsl:if>
</xsl:for-each>
</xsl:variable>
<xsl:variable name="repLst" as="xs:string*"
select="for $i in (1 to count($srchStr)) return
f:tempReplacement($i)"/>
<xsl:variable name="tmpStr"
select="f:replace-all(.,$srchStr,$repLst,1)"/>
<xsl:value-of
select="f:replace-all($tmpStr,$repLst,$srchStr,0)"/>
</xsl:template>

thanks,
UlyLee

--- Michael Kay <mike@xxxxxxxxxxxx> wrote:

> > Hi! the listEXP.txt i have included here is just a
> > part of the actual listEXP.txt; on the original
> list
> > there are 1400 strings. what i have listed below
> > consist only 9 strings. i tested the xsl again
> using
> > the list of 9 strings and it was ok. so i think
> the
> > error comes in when the list is too big for the
> > processor... am i correct at this??? if so how can
> i
> > correct my xsl so that i can handle a list file
> with
> > many strings???
> 
> Yes, I was coming to the same conclusion. Your code
> appears to be
> essentially correct but has run out of stack space.
> Saxon should be able to
> handle this with a technique called tail call
> optimization - your recursive
> call is the last thing the function does, so the
> optimizer should turn it
> into a loop. It's not clear to me at first sight why
> this isn't happening.
> If you can send me the required files I'll take a
> look at it, though it may
> not be for a few days.
> 
> Michael Kay
> http://www.saxonica.com/
> 
> > 
> > --UlyLee
> > 
> > --- UlyLee <ulyleeka@xxxxxxxxx> wrote:
> > 
> > > I'm running an xsl transformation using saxon
> 8.6
> > > and
> > > i encounter this error, 'too many apply-template
> > > calls'. The purpose of the xslt is to tag all
> > > strings
> > > in the listEXP.txt file with EXP. I have 2
> templates
> > > to match, 1st the template that matches * which
> > > simply
> > > copies the element and its attributes. the 2nd
> is a
> > > template that matches
> > > text()[name(parent::*)!='EXP'],
> > > here it should search all the occurrences of the
> > > strings and tag it with EXP.
> > > 
> > > I have created two functions, 1 is the
> > > tmpReplacement
> > > function which creates a tree of strings that i
> will
> > > use as temporary replacement strings. and the
> other
> > > is
> > > the replace-all function that do the search and
> > > replace function.
> > > 
> > > the error message points me to the
> apply-templates
> > > in
> > > the template that matches * but i think thats
> not
> > > the
> > > one actually causing the error because when i
> remove
> > > the elements that calls the replace-all function
> the
> > > transformation is a success.
> > > 
> > > so i think the error is in the replace-all
> function
> > > but i can't seem to find out which part of the
> > > function is actually causing it.
> > > 
> > > this is the xsl file:
> > > 
> > > <?xml version="1.0" encoding="UTF-8"?>
> > > <xsl:stylesheet version="2.0"
> > > xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> > > xmlns:xs="http://www.w3.org/2001/XMLSchema";
> > > xmlns:f="data:,f">
> > > <xsl:output method="xml" version="1.0"
> > > encoding="utf-8" indent="yes"/>
> > > <xsl:variable name="wordLst" as="xs:string*">
> > > <xsl:analyze-string
> > > select="unparsed-text('listEXP.txt','utf-8')"
> > > regex="[\r\n]">
> > > <xsl:non-matching-substring>
> > > <xsl:value-of select="."/>
> > > </xsl:non-matching-substring>
> > > </xsl:analyze-string>
> > > </xsl:variable>
> > > <xsl:template match="/">
> > > <xsl:apply-templates/>
> > > </xsl:template>
> > > <xsl:template match="*">
> > > <xsl:element name="{name(.)}">
> > > <xsl:copy-of select="@*"/>
> > > <xsl:apply-templates/>
> > > </xsl:element>
> > > </xsl:template>
> > > <xsl:template
> > > match="text()[name(parent::*)!='EXP']">
> > > <xsl:variable name="repLst" as="xs:string*"
> > > select="for $i in (1 to count($wordLst)) return
> > > f:tempReplacement($i)"/>
> > > <xsl:variable name="tmpStr"
> > > select="f:replace-all(.,$wordLst,$repLst,1)"/>
> > > <xsl:value-of
> > >
> select="f:replace-all($tmpStr,$repLst,$wordLst,0)"/>
> > > </xsl:template>
> > > <!--Function that creates a tree node of
> temporary
> > > replacement strings.-->
> > > <xsl:function name="f:tempReplacement"
> > > as="xs:string">
> > > <xsl:param name="value" as="xs:integer"/>
> > > <xsl:value-of select="if ($value &lt; 10) then
> > > concat('replacement','00',$value) else if
> ($value
> > > &gt;
> > > 9 and $value &lt; 100) then
> > > concat('replacement','0',$value) else
> > > concat('replacement',$value)"/>
> > > </xsl:function>
> > > <!--Function that simulates a replace-all
> function
> > > and
> > > returns the replaced string.-->
> > > <xsl:function name="f:replace-all">
> > > <xsl:param name="input" as="xs:string"/>
> > > <xsl:param name="words-to-replace"
> as="xs:string*"/>
> > > <xsl:param name="replacement" as="xs:string*"/>
> > > <xsl:param name="flag" as="xs:integer"/>
> > > <xsl:choose>
> > > <xsl:when test="$flag=1">
> > > <xsl:sequence select="if
> (exists($words-to-replace))
> > > then f:replace-all(replace($input,
> > > replace($words-to-replace[1],
> '[.\\?*+{}()\[\]^$]',
> > > '\\$0'),
> > >
> >
>
$replacement[1],'i'),remove($words-to-replace,1),remove($repla
> > cement,1),1)
> > > else $input"/>
> > > </xsl:when>
> > > <xsl:otherwise>
> > > <xsl:sequence select="if
> (exists($words-to-replace))
> > > then f:replace-all(replace($input,
> > > replace($words-to-replace[1],
> '[.\\?*+{}()\[\]^$]',
> > > '\\$0'),
> > >
> >
>
concat('<EXP>',$replacement[1],'</EXP>')),remove($words-to-rep
> > lace,1),remove($replacement,1),0)
> > > else $input"/>
> > > </xsl:otherwise>
> > > </xsl:choose>
> > > </xsl:function>
> > > </xsl:stylesheet>
> > > 
> > > this is the listEXP.txt
> > > Faire-part
> > > Par-dessus
> > > S. Prieure
> > > dernier-ni
> > > sang-froid
> > > sage-femme
> > > Brise-bise
> > > branle-bas
> > > ` peu prhs
> > > 
> > > here is the source xml:
> > > <?xml version="1.0" encoding="ISO-8859-1"?>
> > > <CORPUS>
> > > <T1>
> > > <LIB>
> > > <T>1901-1913</T>trois cent soixante-cinq
> > > chambres ` coucher
> > > <EXP>Faire-part</EXP>
> > > Faire-part
> > > sage-femme
> > > Brise-bise
> > > branle-bas
> > > ` peu prhs
> > > </LIB>
> > > </T1>
> > > </CORPUS>
> 
=== message truncated ===



	
		
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