Executing a string as PostScript instructions

Question

I have programmatically constructed a string, for example

(/r1 [256 782 502] def)

I'd then like to execute the string as PostScript instructions in order to have the array on the stack.

How can I execute a string object?

Answer 1

As commented by Ken, you can call cvx on a string to make it executable, and then call exec on it.

That will execute the contents of the string as PostScript source.