Scripting Guide - SAS

184 Programming Methods Chapter 8
Lists and Expressions
You can do this to any level, for example:
a=expr(expr(expr(expr(x+y))));
b=a;
Expr(Expr(x + y))
c=eval(a);
expr(x+y)
d=eval(eval(a));
x+y
e=eval(eval(eval(a)));
21
Quote an expression as a string
The JSL Quote() function returns the contents of an expression as a quoted string. Comments and white
space in the string are preserved. Syntax coloring is also applied to the output.
The following script is an example:
x = JSL Quote( /* Begin quote. */
For (i = 1, i