RandomStringWithCharacterSet ( stringLength ; characterSet )

Returns a random string using a specified character set.

Average rating: 4.1 (35 votes) Log in to vote

Jeremy Bante

https://github.com/jbante/

Sample input:

List (
RandomStringWithCharacterSet ( 10 ; "abcXYZ123" );
RandomStringWithCharacterSet ( 10 ; "1234567890abcdefghijklmnopqrstuvwxyz-");
RandomStringWithCharacterSet ( 10 ; "aeiouyfb~!@#$%^&*()_+" )
)

Sample output:

3YbaZZZYca
2kn-w8zff-
b@^eafy!y@

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

/**
 * =====================================
 * RandomStringWithCharacterSet ( stringLength ; characterSet )
 *
 * RETURNS:
 *		A random text string of length stringLength. The returned string can include
 *		characters from the specified characterSet.
 *
 * PARAMETERS:
 *		stringLength: The length of the desired result
 *		characterSet: A string containing all possible characters to include in the result
 *
 * DEPENDENCIES: none
 *
 * HISTORY:
 *		CREATED on 2012-11-08 by Jeremy Bante <http://scr.im/jbante>.
 * =====================================
 */

If ( stringLength ≤ 0 or IsEmpty ( characterSet );
	"";
/* Else */
	Let ( [
		~setLength = Length ( characterSet );
		~position = Ceiling ( ( 1 - Random ) * ~setLength );
		~character = Middle ( characterSet ; ~position ; 1 )
	];
		~character
		& RandomStringWithCharacterSet ( stringLength - 1 ; characterSet )
	)
)

Returns a random string using a specified character set.

Comments

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

RandomStringWithCharacterSet ( stringLength ; characterSet )

Comments

Support this website.

Support this website.