STRCMP - Compares two strings.
STRCOMPRESS - Removes whitespace from a string.
STREGEX - Performs regular expression matching.
STRING - Converts arguments to string type.
STRJOIN - Collapses a string scalar or array into merged strings.
STRLEN - Returns the length of a string.
STRLOWCASE - Converts a string to lower case.
STRMATCH - Compares search string against input string expression.
STRMID - Extracts a substring from a string.
STRPOS - Finds first occurrence of a substring within a string.
STRPUT - Inserts the contents of one string into another.
STRSPLIT - Splits its input string argument into separate substrings, according to the specified pattern.
STRTRIM - Removes leading and/or trailing blanks from string.
STRUPCASE - Converts a string to upper case.