string set

Creates a set from the given list of semicolon-separated strings.

Returns the unique elements of the specified <string set>, removing duplicates and sorting by value.Example: elements of set of ("beta";"beta";"alpha";"gamma";"beta") - Returns the strings alpha, beta, gamma.

Returns a set of strings equal to the intersection of the specified sets, aphabetized and with redundant elements stripped out.

Returns the number of unique elements in the specified set.Example: size of set of ("to";"be"; "or"; "not"; "to"; "be") - Returns 4, the number of unique strings in the set.

Returns a set of strings equal to the union of the specified sets, alphabetized and with redundant elements stripped out.

Returns the intersection of the specified sets.Example: elements of (set of ("to";"be";"or") set of ("not";"to";"be")) - Returns the list: be,to.Example: elements of (set of ("lime";"pie") set of ("pie";"face") * set of("pie";"in";"sky")) - Returns "pie.".

Returns the union of the specified sets.Example: elements of (set of ("to";"be";"or") + set of ("not";"to";"be")) - Returns the list: be,not,or,to.

Subtracts the elements in the second set from the elements in the first.Example: elements of (set of ("to";"be";"or") - set of ("not";"to";"be")) - Returns or.Example: elements of (set of ("fee";"fie";"foe") - set of ("fee") - set of("foe")) - Return "fie.".

Returns True if the specified sets have identical contents.

Returns True if the first set contains all the elements of the second set.Example: set of ("to";"be";"or";"not") contains set of ("to";"be") - Returns True.

Returns True if the specified set of strings contains the given string.Example: set of ("foo";"bar") contains "foo" - Returns True.