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Re: [xsl] Xpath to node that has a parent with a certain attribute

Subject: Re: [xsl] Xpath to node that has a parent with a certain attribute
From: "Manuel Souto Pico terminolator@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 26 Oct 2016 10:04:49 -0000
Thanks, Eliot.

Unfortunately none of your suggestions work. I get
*Warning*: SimpleXMLElement::xpath(): Invalid expression
bool(false)

As I said in my previous email, the expression below seems to work,
following Michael's tip:
$xliff->xpath('//target[parent::trans-unit[@id="xxx"]]')[0]->__toString()

However, I'm curious about (and not familiar with) the *: Could you explain
what it means? Thanks.

Cheers, Manuel


2016-10-25 20:44 GMT+02:00 Eliot Kimber ekimber@xxxxxxxxxxxx <
xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>:

> Most like the elements are in a namespace, so your match expressions will
> not match.
>
> You can test that by changing "//target[parent::trans-unit[@id="xxx"]]"
> to //*:target[parent::*:trans-unit[@id="xxx"]]
>
> If the @id value will be unique within the document then you can do
> something like:
>
> //*[@id = 'xxx']/*:target
>
> Also, since you know the structure, you can replace "//", which is very
> inefficient, with "/*/*/*" (if I've counted the ancestor levels correctly).
>
> Cheers,
>
> Eliot
> --
> Eliot Kimber
> http://contrext.com
>
>
>
> From: "Manuel Souto Pico terminolator@xxxxxxxxx" <xsl-list-service@lists.
> mulberrytech.com>
> Reply-To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> Date: Tuesday, October 25, 2016 at 12:48 PM
> To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> Subject: [xsl] Xpath to node that has a parent with a certain attribute
>
> Hi there,
>
> I'm struggling to match a node where the parent has a particular id,
> perhaps someone can help me.
>
> This is my data:
>
> <xliff>
>   <file>
>     <header/>
>     <body>
>     (...)
>       <trans-unit id="xxx>
>         <source xml:lang="en">foo</source>
>         <target xml:lang="sl" state="zzz">bar</target>
>       </trans-unit>
>
> I have parsed the file and I am trying expressions
>
> $xliff->xpath('//target[parent::trans-unit[@id="xxx"]]')
>
> and
>
> $xliff->xpath('//trans-unit[@id="xxx"]/target')
>
> but they both give me the same result:
>
> array(1) {
>   [0]=>
>   object(SimpleXMLElement)#8 (1) {
>     ["@attributes"]=>
>     array(1) {
>       ["state"]=>
>       string(22) "zzz"
>     }
>   }
> }
>
> My expected result is "bar"
>
> What I doing wrong?
>
> I'm doing this in php 5.5.11 with libxml Version 2.9.1.
>
> Thank you so much.
> Cheers, Manuel
>
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