Vorlage:If-Instring

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If parameter "searchterm" exists in parameter "string", then the parameter "then" is returned, else the parameter "else". If else is missing, an empty string is returned in the second case

USAGE:

={{If-Instring | searchterm = a | string = abc | then = found | else = not found}}= returns actually "=found=", expected: "=found="
={{If-Instring | searchterm = a | string = bcd | then = found | else = not found}}= returns actually "=not found=", expected: "=not found="

Note on the code: If the search term is found, the return value of #pos is a zero-based integer of the first position within the string (and #if is true). If the search term is not found, the function returns an empty string (and #if is false).