[xpath] Selecting Several Paths

[Ronald63]

Hi,

I want select several path in Xml with XPath expression. I try to use | operator but without success.

Thanks for your help.

var s = '<Root>';;
s += '<TAG1>t1</TAG1>';
s += '<TAG2>i1</TAG2>';
s += '<TAG3>tag_3_value</TAG3>';
s += '<TAG1>t2</TAG1>';
s += '<TAG2>i2</TAG2>';
s += '<TAG4>tag_4_value</TAG4>';
s += '<TAG1>t3</TAG1>';
s += '<TAG2>i3</TAG2>';
s += '</Root>';
var x = new XML (s);
var p0 = x.xpath('//TAG3'); // return 'tag_3_value'
$.writeln(p0)
var p1 = x.xpath('//TAG3|//TAG4'); // return nothing
$.writeln(p1)
var p2 = x.xpath('//(TAG3|TAG4)'); // syntax error

Ronald

[Loic.Aigon · Accepted solution]

Hi,

First of all, you don't need to instantiate an XML object passing by a XML string. E4X allows you to declare XML as Objects:

var xmlObject = <Root>  
<TAG1>t1</TAG1>  
<TAG2>i1</TAG2>  
<TAG3>tag_3_value</TAG3>  
<TAG1>t2</TAG1>  
<TAG2>i2</TAG2>  
<TAG4>tag_4_value</TAG4>
<TAG1>t3</TAG1>
<TAG2>i3</TAG2>  
</Root>;  

Second of all, you need to take a serious look at XPath even if its implementation is not fully completed in ExtendScript:

//E4X approach for retrieving TAG2 & TAG3
xmlObject.*.(/TAG[23]/.test(name()) );
//or using xpath
xmlObject.xpath( "//*[local-name()='TAG2' or local-name()='TAG3']" );

HTH

Loic

[Ronald63]

Hi Loic,

Thank you for your help 😉

Bonne journée