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Subject: Re: [docbook-apps] Infinite loop in xsl processing

On Mon, Nov 17, 2003 at 01:57:04PM +0100, Sanders, M. wrote:
> Hi,
> I am using modular documents with xi:include.
> When I include a sect1 document, a part of a modular chapter, xsltproc
> works fine with my own xsl customization file (only param's). When I
> process the file as a stand alone document with the same customization
> file xsltproc and stylesheets (1.62.4) go in an infinite loop. The top
> of the loop looks like:
> runtime error: file ..../common/common.xsl line 132 element text
> xsltApplyOneTemplate: Loop found ???
> try increasing xsltMaxDepth (--maxdepth)
> Templates:
> #0 name is.component
> #1 name sect1 name label.markup
> #2 name sect1 name label.markup
> #3 name sect1 name label.markup
> #4 name sect1 name label.markup
> etc.
> If I remove the param section.label.includes.component.label '1' from
> the customization everything works fine. Is this a bug, a feature or am
> I doing something wrong?

It's a bug.  I just checked in a fix in common/labels.xsl.
Until the next stylesheet release, you can put this
fixed version of the template in your customization:

<xsl:template match="sect1" mode="label.markup">
  <!-- if the parent is a component, maybe label that too -->
  <xsl:variable name="parent.is.component">
    <xsl:call-template name="is.component">
      <xsl:with-param name="node" select=".."/>

  <xsl:if test="$section.label.includes.component.label != 0
                and $parent.is.component != 0">
    <xsl:variable name="parent.label">
      <xsl:apply-templates select=".." mode="label.markup"/>
    <xsl:if test="$parent.label != ''">
      <xsl:apply-templates select=".." mode="label.markup"/>
      <xsl:apply-templates select=".." mode="intralabel.punctuation"/>

    <xsl:when test="@label">
      <xsl:value-of select="@label"/>
    <xsl:when test="$section.autolabel != 0">
      <xsl:number count="sect1"/>


Bob Stayton                                 400 Encinal Street
Publications Architect                      Santa Cruz, CA  95060
Technical Publications                      voice: (831) 427-7796
The SCO Group                               fax:   (831) 429-1887
                                            email: bobs@sco.com

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