CODEWITHSUNDEEP
xpath
Jeffz
Jeffz

Reputation: 2105

xpath: find child, where another child of the same node has specific value

Here is the xml:

<cat>
    <row>
       <col attr="w">111</col>
       <col attr="p">222</col>
       <col attr="g">333</col>
       <col attr="r">444</col>
       <col attr="n1">555</col>
       <col attr="n2">666</col>
       <col attr="s">777</col>
    </row>
    <row>
       <col attr="w">aaa</col>
       <col attr="p">bbb</col>
       <col attr="g">nnn</col>
       <col attr="r">mmm</col>
       <col attr="n1">xxx</col>
       <col attr="n2">ccc</col>
       <col attr="s">vvv</col>
    </row>
</cat>

What I look for: find 

//cat/row/col[@attr='n2']

only , if in the same parent node

//cat/row/col[@attr='w']==111

Upvotes: 0

Views: 181

Answers (3)

Nora
Nora

Reputation: 1482

This xpath will find the col with attr=w and text='111', then go back to it's parent and look for the parent's children with col @attr=n2 

//row/col[@attr='w' and text()='111']/../col[@attr='n2']

Upvotes: 0

Rolando Isidoro
Rolando Isidoro

Reputation: 5114

Here's an alternative solution which I consider more readable as you add the conditions in each node of the XPath expression as you go, without the need to use parent:

//cat/row[./col[@attr='w' and text()='111']]/col[@attr='n2']

with the same output:

<col attr="n2">666</col>

Upvotes: 1

Navin Rawat
Navin Rawat

Reputation: 3138

Your correct XPATH is:

//cat/row/col[@attr='n2'][parent::row/col[@attr='w' and text()='111'] ]

to get output:

<col attr="n2">666</col>

Upvotes: 1

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