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 FileMaker Pro Custom Functions

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GetXMLNode ( XML ; XPath )

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  Average rating: 4.2  (43 votes)
  Discuss this Custom Function

Michael Wallace, Richard Carlton Consulting
http://www.rcconsulting.com

Navigate XML tree and return results using XPath type functionality (Nonrecursive)

Sample Input:
XMLfield is set to:
<class><student>Bill</student><student>Sue</student><class>
GetXMLNode ( XMLfield ; "/class[1]/student[1]" ) & "¶" &
GetXMLNode ( XMLfield ; "/class[1]/student[2]" )
Sample Output:
Bill
Sue


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

Description:

Navigate XML tree and return results using XPath type functionality.

Parameter Description
XML - vanilla xml imput without attributes
XPath - basic XPath like syntax consiting of a series of xml nodes formatted as follows:
/nodeName[instanceNumber]


Requires ExtractData ( XML ; Attribute ; Instance ) by Andy Knasinski of NRG Software which can be found at http://www.briandunning.com/cf/1

Thanks to Andy for the great base function!

This function is not recursive. It simply creates multiple nested instances of ExtractData in a calculation string and then evaluates it to get the data.

*************
EXAMPLE USE
*************
XMLfield is set to:
<class>
<teacher>
<name>Kelly</name>
</teacher>
<students>
<student>
<name>Bill</name>
<age>15</age>
</student>
<student>
<name>Sue</name>
<age>16</age>
</student>
</students>
</class>

GetXMLNode ( XMLfield ; "/class[1]/teacher[1]/name[1]" ) & "¶" &
GetXMLNode ( XMLfield ; "/class[1]/students[1]/student[2]/age[1]" ) & "¶" &
GetXMLNode ( XMLfield ; "/class[1]/students[1]/student[1]" )

Will produce the following:
Kelly
16
<name>Bill</name><age>15</age>

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

This is my Custom Function and I want to edit it

Discuss:

Trailing section of example is incorrect, <class> should be </class>

Bruce Robertson, Redmond WA
February 16, 2009 1:49pm

Thanks Bruce, correction made.

Michael Wallace, Fairfield CA
February 26, 2009 12:14pm

No, it has not been corrected, in the Sample Input section here where you state "XMLfield is set to: … "

Bruce Robertson, Redmond WA
November 01, 2013 4:53pm

"Nonrecursive, this function simply creates multiple nested instances of GetXMLData in a calculation string and then evaluates it to get the data."

Don't you mean ExtractData instead of GetXMLData?

Simon Plint, Australia
October 26, 2014 10:47pm

Fixed the typo in the description. Thanks Simon.

Mike Wallace, Dallas Texas
April 27, 2015 9:47am

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