Is lower

IS_LOWER

Type Function	BOOL
Input STR	STRING (String input)
Output	BOOL (TRUE if str contains only lowercase letters)
	IS_LOWER tests whether the string STR only lowercase letters are included. If anything other than a small letter found the function returns FALSE. If in STR are only lowercase letters included, the function returns TRUE. In examining the Global Setup EXTENDED_ASCII constant is considered. If EXTENDED_ASCII = TRUE the extended ASCII character-set to be considered in accordance with ISO 8859-1. Umlauts like Ä, Ö, Ü are considered only if the global constant EXTENDED_ASCII = TRUE.