[XSL-LIST Mailing List Archive Home] [By Thread] [By Date]

RE: [xsl] Process following siblings that have no text into children.


Subject: RE: [xsl] Process following siblings that have no text into children.
From: "Kerry, Richard" <richard.kerry@xxxxxxxx>
Date: Thu, 16 Aug 2012 13:26:23 +0000

I've not yet tried this group-based approach, or the Tree Walking approach
from Dave's FAQ....

Before I start looking at those approaches, and before I'd received these
replies from you, I'd been trying to do the task by manipulating the axis to
be used for applying the next template.

I have something like :

<xsl:variable name="axis"
select="following-sibling::element()[preceding-sibling::element()[column[1] =
'']]" />
<xsl:apply-templates select="$axis" mode="col-1" />

What I mean by this is :
following-sibling::element() - all subsequent "row" elements in the document.
[preceding-sibling::element()[column[1] = '']]" - but only those which have no
column[1] text in elements preceding them.

I've tried this using element(), node() and *, and = and !=, but I don't get
the restricted axis I want.

Should I expect this approach to work ?
If so, can anyone advise what I might need to change.
If not, why not ?


Regards,
Richard.

PS, XSTL-2, via Saxon 9 HE.

PPS. Is something wrong with this mailing list ? I sent this message this
morning and it doesn't seem to have appeared. Apologies if anyone gets it
twice.



Richard Kerry
BNCS Engineer
T: +44 (0)20 82259063
M: +44 (0)7812 325518
Room EBX 301, BBC Television Centre, Wood Lane, London, W12 7RJ
richard.kerry@xxxxxxxx
uk.atos.net

This e-mail and the documents attached are confidential and intended solely
for the addressee; it may also be privileged. If you receive this e-mail in
error, please notify the sender immediately and destroy it. As its integrity
cannot be secured on the Internet, the Atos group liability cannot be
triggered for the message content. Although the sender endeavours to maintain
a computer virus-free network, the sender does not warrant that this
transmission is virus-free and will not be liable for any damages resulting
from any virus transmitted.

________________________________________
From: Michael M|ller-Hillebrand [mmh@xxxxxxxxx]
Sent: 15 August 2012 17:20
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [xsl] Process following siblings that have no text into
children.

Richard,

Because I like to test stuff using Kernow [1] so much, I came up with this
little template for <sheet>:

<xsl:template match="sheet">
  <result name="{@name}">
    <xsl:for-each-group select="row" group-starting-with="row[column[1][. !=
'']]" >
      <item row="{@row}" name="{column[1]}">
        <xsl:for-each select="current-group()">
          <sub-item value="{column[3]}"/>
        </xsl:for-each>
      </item>
    </xsl:for-each-group>
  </result>
</xsl:template>

It requires XSLT2, but who would like to do without it?

BTW, your XML example was missing the closing </item> elements.

- Michael

[1]: http://kernowforsaxon.sourceforge.net

Am 15.08.2012 um 16:54 schrieb Kerry, Richard:

> ... this is what I really needed to ask in my query from yesterday ...
>
> I have Xml corresponding to part of a spreadsheet, like this :
>
> <sheet name="sheet-1" >
> <row row="6">
> <column column="1" cell="A6">Reference Present</column>
> <column column="2" cell="B6">1,2</column>
> <column column="3" cell="C6">1=missing</column>
> </row>
>
> <row row="7">
> <column column="1" cell="A7"/>
> <column column="2" cell="B7"/>
> <column column="3" cell="C7">2=present</column>
> </row>
>
> <row row="8">
> <column column="1" cell="A8">Reference Standard</column>
> <column column="2" cell="B8">0-11</column>
> <column column="3" cell="C8">0=missing</column>
> </row>
>
> <row row="9">
> <column column="1" cell="A9"/>
> <column column="2" cell="B9"/>
> <column column="3" cell="C9">1=525</column>
> </row>
>
> <row row="10">
> <column column="1" cell="A10"/>
> <column column="2" cell="B10"/>
> <column column="3" cell="C10">2=625</column>
> </row>
> </sheet>
>
> What I want to do is to make all the elements that have no text children of
the most recent one which does have text (as well as getting its own column[3]
put into a child).
>
> The result I want is as follows:
>
> <result name="sheet-1" >
> <item row="6" name="Reference Present" >
>    <sub-item value="1=missing" />
>    <sub-item value="2=present" />
> <item row="8" name="Reference Standard" >
>    <sub-item value="0=missing" />
>    <sub-item value="1=525" />
>    <sub-item value="2=625" />
> </result>
>
> The text from cells C6 and C7 have been used for the sub-item elements which
have been created as children of the item corresponding to row 6 (and A6)
> and that from cells C8, C9 and C10 have been used for the sub-item elements
which have been created as children of the item corresponding to row 8 (and
A8).
>
> At the moment I've got the following template in my stylesheet :
>
> <xsl:template match="row[column[1] != '']">
> <test-1 row="{@row}" value="{column[3]}" >
>    <xsl:variable name="axis" select="following-sibling::element()" />
>    <xsl:apply-templates select="$axis" mode="col-1"></xsl:apply-templates>
> </test-1>
> </xsl:template>
>
> (I have another template to catch "row" with no text in column 1, and one
for "row" with mode=col-1. )
>
> This matches every "row" which does have text in column[1].
> It then applies the mode=col-1 template on every following-sibling.
>
> However, that of course runs to the end of the document.  I only actually
want it to run up to, but not including, the next "row" with non-null text.
>
> Please can someone advise what the best way of achieving this would be ?
> Do I need just to do a search along $axis for the first non-null text, save
the position in a variable, then use that to select the length of a
subsequence of $axis ?
> Or is there a neater way of doing the job ?  Can I get the sequence up to
the next following sibling with non-null text in a single call ?
>
>
> Puzzledly,
> Richard.


Current Thread
Keywords
xml