A STRING type variable can contain any string of characters. The size entry in the declaration determines how much memory space should be reserved for the variable. It refers to the number of characters in the string and can be placed in parentheses or square brackets. If no size specification is given, the default size of 80 characters will be used.
The string length basically is not limited, but string functions only can process strings of 1 - 255 characters!
Example of a String Declaration with 35 characters:
str:STRING(35):='This is a String';
See also: STRING constants⮫ “STRING constants”