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 FileMaker Pro Custom Functions

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GetXmlContent ( theXml ; theNodeName ; theInstanceNumber )

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  Average rating: 4.6  (25 votes)
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JT Hughes, N/A

Extract data from XML snippet which may contain attributes and/or erroneous partial matches

Sample Input:
GetXmlContent ( theXml ; "test" ; 2 )

Where theXml =
<test top="yes">123</test>
<test bottom="yes">789</test>
Sample Output:

 Then copy & paste into FileMaker Advanced's Edit Custom Function window.


This function was inspired by Andy Knasinski's ExtractData ( ) and expanded to account for erroneous partial-match error returns and multiple matching instances which may or may not contain attributes.

Note: these functions are not guaranteed or supported by Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it


It is a common misconception that XML can be easily and relaible paresed using text function. Consider the folowing example:

<test xmlns="urn:X-ample:1">two</test>
<test>the real two</test>

What is the value of the second occurrence of element named "test"? The above CF tells us it is "two", but the correct answer is "the real two" - compare: b20-6a49ffee330e-xpath#.VOL3IYURJFQ

comment, VR
February 17, 2015 12:15am

~positionNodeTest = Position ( ~xmlTransformed ; RARETEXT ; 1 ; theInstanceNumber );

should be:
~positionNodeTest = Position ( ~xmlTransformed ; RARETEXT ; 1 ; ~instanceNumber );

john renfrew, curdworth
February 25, 2015 3:36pm

Fixed, thanks John. I noticed that earlier but hadn't a chance to fix it yet.

comment, good point about the namespacing. But for my purposes at least, "two" would be the correct result. Caveat Functioner, I guess.

JT, Fresno
February 25, 2015 8:48pm

Does not compile as written. There is no Null function.

Case (
IsEmpty ( theXml )
or IsEmpty ( theNodeName ) ;
Null; // RETURN

Bruce Robertson, Redmond WA
April 13, 2015 7:58am

Fixed. Thanks, Bruce!

JT, Fresno
April 13, 2015 11:08am

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