string_in

Description:

Compares a string with a list of strings. Returns the string true if the string is identical to at least one of the other strings, otherwise the string returned is false.

Syntax:

Three to n parameters: Values to be compared

Example:

<operation name="string_in">
<constant>42</constant>
<constant>42</constant>
<constant>37</constant>
<constant>42</constant>
</operation>

Return value:

true
As soon as a string is found, which is identical to the string to be compared, true is returned even if more values are to follow. If no value can be determined for the first parameter, nothing is returned.