CFLib.org – Common Function Library Project

Description:
Tests passed value to see if it is a properly formatted Dutch zip code. Does not check actual validity/existence of zip code!

Return Values:
Returns a Boolean value.

Example:

<cfoutput>
4808 CW: #YesNoFormat(IsZipNL("4808 CW"))#<br>
902 WS: #YesNoFormat(IsZipNL("902 WS"))#<br>
0241 WS: #YesNoFormat(IsZipNL("0241 WS"))#<br>
ARCS 14: #YesNoFormat(IsZipNL("ARCS 14"))#<br>
2345 AB: #YesNoFormat(IsZipNL("2345 AB"))#<br>
</cfoutput>

Parameters:

Full UDF Source:

/**
 * Tests passed value to see if it is a properly formatted Dutch zip code.
 * Thanks to Jeff Guillaume on who's UDF IsZip I based this UDF.
 * Version 2 by pjf@maestropublishing.com
 * 
 * @param str      String to be checked. (Required)
 * @return Returns a Boolean value. 
 * @author Martijn Verhoeven (MVerhoeven@Rhinofly.nl) 
 * @version 2, July 15, 2005 
 */
function IsZipNL(str) {
    /* All dutch zip codes contains four numbers and two letters  (NNNN AA) with an optional space for the regex. */
    /* Zips start at 1000 so if the first number is a 0 the zip is wrong. */
    return REFind("^[1-9][[:digit:]]{3}( )?[[:alpha:]]{2}$", arguments.str);
}