How do I detect an error in a "Set Directory" statement?
It appears that 'set the directory to "My Dir"; answer the result' will return an empty string on success, an error message on failure. This behavior makes sense.
But 'set the directory to myFunction(); answer the result' appears to return the result of myFunction on success, and an error message on failure. I found this unacceptable because myFunction may return something that looks like an error.
I'm assuming that 'the result' was getting confused by the function call. So I tried 'get myFunction(); set the directory to it; answer the result'. This form returns the value of 'it' on success, an error message on failure. So I have the same problem as with the function call.
How can I reliably determine if "Set Directory" worked or failed?
