GetXMLNode ( XML ; XPath )

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

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Michael Wallace - Show more from this author
Empowered Data Solutions
http://empowereddatasolutions.com

Sample input:

XMLfield is set to:
BillSue
GetXMLNode ( XMLfield ; "/class[1]/student[1]" ) & "¶" &
GetXMLNode ( XMLfield ; "/class[1]/student[2]" )

Sample output:

Bill
Sue

Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

// GetXMLNode ( XML ; XPath )
// Requires ExtractData ( XML ; Attribute ; Instance ) 
// ExtractData can be found at http://www.briandunning.com/cf/1 
// Thanks to Andy Knasinski of NRG Software for the great base function!

// *** 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]  

Evaluate ( Substitute ( Filter ( XPath ; "/" ) ; "/" ; "ExtractData ( " ) & "\"" & XML & "\"" & Substitute ( XPath ; [ "/" ; ";\"" ] ; [ "[" ; "\";" ] ;  [ "]" ; ")" ] ) )


/****************************************************************
Nonrecursive, this function 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>

****************************************************************
****************************************************************/

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:

Kelly

Bill
15

Sue
16

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
Bill15

Comments

		Bruce Robertson Feb 16, 2009
Trailing section of example is incorrect, <class> should be </class>

		Michael Wallace, Empowered Data Solutions Feb 26, 2009
Thanks Bruce, correction made.

		Bruce Robertson Nov 1, 2013
No, it has not been corrected, in the Sample Input section here where you state "XMLfield is set to: â€¦ "

		Simon Plint, Australia Oct 26, 2014
"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?

		Mike Wallace, Dallas Texas Apr 27, 2015
Fixed the typo in the description. Thanks Simon.

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

GetXMLNode ( XML ; XPath )

Comments

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