Brian Dunning's FileMaker Custom Functions

CustomQuickSort ( values ; valueFunction ; direction )

QuickSort using custom evaluation

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Richard Dyce   Richard Dyce - Show more from this author
Dyce & Sons Ltd.
http://dyce.com

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  Sample input:
CustomQuickSort ( "3,5¶4,2¶1,3¶4,1¶1,7¶2,0¶1,9" ; "Middle( \"[t]\" ; Position( \"[t]\" ; \",\" ; -1 ; 1 ) + Length( \",\" ) ; 64000 )" ; True )
  Sample output:
"2,0¶4,1¶4,2¶1,3¶3,5¶1,7¶1,9"

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

This is an extension of the existing QuickSort( list ) function from Jeremy Bante ( OshVay Systems, Inc. http://www.oshvay.com).

It allows you to effectively use a comparison function so that you can sort more complex values. For example, given a list of coordinates:

"3,5¶4,2¶1,3¶4,1¶1,7¶2,0¶1,9"

You can sort them by their y coordinate:

CustomQuickSort ( "3,5¶4,2¶1,3¶4,1¶1,7¶2,0¶1,9" ; "GetAsNumber( Middle( \"[t]\" ; Position( \"[t]\" ; \",\" ; -1 ; 1 ) + Length( \",\" ) ; 64000 ) )" ; True )

gives:

"2,0¶4,1¶4,2¶1,3¶3,5¶1,7¶1,9"

 

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

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