Re: [xsl] with XPath 1.0, select all following sibling elements of name "foo" up to the first non-"foo" element

["G. Ken Holman g.ken.holman@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

self::a:b is namespace-sensitive.
name(.)='a:b' is not namespace-sensitive.

Namespace sensitivity always is preferred.

I hope this helps.

. . . . . . . Ken

At 2021-02-18 18:43 +0000, Wolfhart Totschnig
wolfhart.totschnig@xxxxxxxxxxx wrote:
> Hello again,
>
> Thank you, Wendell!
>
> The proposed solutions leave me with two questions:
>
>
> 1) Is there a way to do what I originally had in
> mind, i.e., go forward to the first non-"foo"
> sibling and from there go backwards, taking all the
> "foo" siblings up to the current node? Asked
> differently, can the following XPath expression be fixed?
>
> following-sibling::*[not(self::source)][1]/preceding-sibling::*[self::source
][preceding-sibling::current()]
> Specifically, can "preceding-sibling::current()" be fixed?
>
>
> 2) Liam's and Wendell's proposals involve the
> expression [name()=...], whereas I have used
> [self:: ...]. Are these strictly equivalent, or
> is there a reason to prefer the one over the other?
>
>
> Thanks again for your help!
> Wolfhart
>
>
> On 18-02-21 13:06, Wendell Piez
> <mailto:wapiez@xxxxxxxxxxxxxxx>wapiez@xxxxxxxxxxxxxxx wrote:
> > Hi,
> >
> > With a sequence of variable declarations:
> >
> > <xsl:variable name="name" select="name()"/>
> > <xsl:variable name="followers"
select="following-sibling::*[name()=$name]"/>
> > <xsl:variable name="interlopers"
> > select="following-sibling::*[not(name()=$name)]
> > | following-sibling::*[not(name()=$name)]/following-sibling::*"/>
> > <xsl:variable name="invited" select=". |
> > $followers[not(count(.|$interlopers)=count($interlopers))]"/>
> >
> > Note: untested.
> >
> > Good luck,
> > Wendell
> > B  B B
> >
> > On Wed, Feb 17, 2021 at 8:32 PM Wolfhart
> > Totschnig
> > <mailto:wolfhart.totschnig@xxxxxxxxxxx>wolfhart.totschnig@xxxxxxxxxxx
> > <<mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>xsl-list-service@xxxxxxxxx
berrytech.com>
> > wrote:
> > Dear list,
> >
> > I am facing an XPath problem for which I cannot find the solution. I
> > want to select all following sibling elements of name "foo" up to the
> > first non-"foo" element. So, in the following case, the first two <foo>
> > elements should be selected:
> >
> > <foo/>
> > <foo/>
> > <bar/>
> > <foo/>
> >
> > In the following case, all three <foo> elements should be selected:
> >
> > <foo/>
> > <foo/>
> > <foo/>
> >
> > And in the following case, nothing should be selected:
> >
> > <bar/>
> > <foo/>
> > <foo/>
> >
> > I came up with the following non-working approach:
> >
> > B B B B  B B B  B B B  <xsl:choose>
> > B B B B  B B B  B B B  B B B  <xsl:when
> > test="not(following-sibling::*[not(self::foo)])">
> > B B B B  B B B  B B B  B B B  B B
> > B  <xsl:value-of select="following-sibling::*"/>
> > B B B B  B B B  B B B  B B B  </xsl:when>
> > B B B B  B B B  B B B  B B B  <xsl:otherwise>
> > B B B B  B B B  B B B  B B B  B B B  <xsl:value-of
> > select="following-sibling::*[not(self::source)][1]/preceding-sibling::*[sel
f::source][preceding-sibling::current()]"/>
> > B B B B  B B B  B B B  B B B  </xsl:otherwise>
> > B B B B  B B B  B B B  </xsl:choose>
> >
> > That is, test whether there are non-"foo" following siblings. If there
> > are none, take all following siblings. If there are, go forward to the
> > first non-"foo" sibling, and from there go backwards, taking all the
> > "foo" siblings up to the current node.
> >
> > But this does not work. Apparently, the expression
> > "preceding-sibling::current()" is not a valid construct. So what is the
> > correct way to do what I have in mind (or a simpler solution, if there
> > is one). Please note that this stylesheet needs to be executed by a web
> > browser, and so the solution has to remain within XPath 1.0.
> >
> > Thanks in advance for your help!
> > Wolfhart


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