Assignment statements serve to assign the value of an expression to one (or several) destinations. A value-type assignment is indicated with the symbol ':=', a reference-type assignment with the symbol ':-'. Rules:
ΓÇó The types of the variable and expression must be equal. real := integer is ok, integer := real leads to rounding.
ΓÇó Text value assignment (s := t): The characters in s are replaced by those in t. t.length must be <= s.length, blank padding if not equal. s.pos is unchanged. See also
ΓÇó Text reference assignment (s :- t): The text variable s is set to reference the same text frame as s. See also