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 FileMaker Pro Custom Functions

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IsNumber ( _var )

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Rewolfer, -
http://rewolfer.de

return a valid number according to regional setting

Sample Input:
".445"
Sample Output:
0,445


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

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed

Description:

/*=================================================

FORMAT: IsNumber ( _var )

PURPOSE: return a valid number according to regional setting

PARAMETER: _var type: unknown value: variable

RESULT: valid number in regional setting or nothing if invalid

DEPENDENCY: -

NOTE: build on the profound work of thomas seidler (http://www.harmlesswise.com)
see http://www.json.org/ for number testing trickery

EXAMPLE: IsNumber ( ".445" ) => 0,445 (in a FMP-file with German settings)
IsNumber ( "5,54e-2" ) => -10575000

HISTORY: 2011-10-04 [000000] 1.20 tseidler original number function
2012-04-14 [120433] 2.00 tsw aligned to other Is-functions: IsNumber returns value if valid or nothing if false
2012-04-19 [235920] 2.10 tsw caches file settings in $$IsNumberFormatAccepted on first run

DEVELOPER: thomas seidler @ http://www.harmlesswise.com
tsw @ http://rewolfer.de
=================================================*/

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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