CODEWITHSUNDEEP
xpath
krl
krl

Reputation: 5296

XPath select parent attribute and child element data

XPath newbie here.

Is there a way to select a list of attr1 and child3 pairs using XPath from the sample XML below?

In other words I need a list of a11, c13, a21, c23, etc.

Or I can only do //parent and pick required values from the array of resulting nodes?

<parentList>
  <parent attr1="a11" attr2="a12">
    <child1>c11</child1>
    <child2>c12</child2>
    <child3>c13</child3>
    <child4>c14</child4>
    <child5>c15</child5>
  </parent>
  <parent attr1="a21" attr2="22">
    <child1>c21</child1>
    <child2>c22</child2>
    <child3>c23</child3>
    <child4>c24</child4>
    <child5>c25</child5>
  </parent>
</parentList>

Upvotes: 1

Views: 51

Answers (2)

E.Wiest
E.Wiest

Reputation: 5905

XPath 1.0 solution to select the elements of interest :

//parent/descendant-or-self::*[position()=1 or position()=4]

But, to generate a list of data you should use the following one :

(//@attr1|//text()[normalize-space()])[parent::parent or parent::*[parent::parent][count(preceding-sibling::*)=2]]

Look for an attribute or text with : parent element as parent or child of parent as parent and two preceding siblings.

Output : a11,c13,a21,c23

Upvotes: 0

Jack Fleeting
Jack Fleeting

Reputation: 24930

This xpath 2.0 expression (and properly closing your sample html) 

//parent/concat(@attr1,' ',child3/text())

should output:

a11 c13
a21 c23

Upvotes: 2

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