SET - assign the value of an expression to a variable.

$*$SEt var = expression: sets a variable to the value of the given expression. The type of the variable is the type of the expression's result. The "=" after the variable name may be omitted. If "expression" is a string expression, the string may contain the '*' escape sequences described in "expl if". For example, you can use *" to stand for a double quote character. Contrast this with $*$IniT, where characters are taken literally and *" would be taken as an asterisk followed by a double quote.