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

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 
[email protected] 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:[email protected]>[email protected] 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
>>Â  Â Â
>>
>>On Wed, Feb 17, 2021 at 8:32 PM Wolfhart 
>>Totschnig 
>><mailto:[email protected]>[email protected] 
>><<mailto:[email protected]>[email protected]> 
>>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:
>>
>>Â Â Â Â  Â Â Â  Â Â Â  <xsl:choose>
>>Â Â Â Â  Â Â Â  Â Â Â  Â Â Â  <xsl:when 
>>test="not(following-sibling::*[not(self::foo)])">
>>Â Â Â Â  Â Â Â  Â Â Â  Â Â Â  Â Â 
>>Â  <xsl:value-of select="following-sibling::*"/>
>>Â Â Â Â  Â Â Â  Â Â Â  Â Â Â  </xsl:when>
>>Â Â Â Â  Â Â Â  Â Â Â  Â Â Â  <xsl:otherwise>
>>Â Â Â Â  Â Â Â  Â Â Â  Â Â Â  Â Â Â  <xsl:value-of
>>select="following-sibling::*[not(self::source)][1]/preceding-sibling::*[self::source][preceding-sibling::current()]"/>
>>Â Â Â Â  Â Â Â  Â Â Â  Â Â Â  </xsl:otherwise>
>>Â Â Â Â  Â Â Â  Â Â Â  </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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