A ColdFusion function to convert dot notation strings to structs

ConvertStringToStruct.cfm

<cfscript>
private struct function convertStringToStruct(required string key, required any value, string delimiter = ".") {
    var obj = StructNew();
    var first = ListFirst(arguments.key, arguments.delimiter);
    var rest = ListRest(arguments.key, arguments.delimiter);

    if (Len(rest)) {
        obj[first] = convertStringToStruct(rest, arguments.value, arguments.delimiter);
    } else {
        obj[first] = arguments.value;
    }

    return obj;
}
</cfscript>

TestConvertStringToStruct.cfm

<cfscript>

	// Declare a struct. We will later append to this
	obj = StructNew();
	
	// Create a few top level keys
	obj["ab"] = "foo";
	obj["b"] = "bar";
	
	// Append a dynamically created structure
	StructAppend(obj, convertStringToStruct("a.b.c", "baz"), false);
	
	// Show our output
	WriteDump(obj);

</cfscript>