multi-line constants? (for RSA keys)

[Dr. Hawkins]

RSA keys, as generated, are multiple lines, like
 "-----BEGIN PUBLIC KEY-----"
"ABC123"
"DEF456"
"-----END PUBLIC KEY-----"

I'm trying to do something like

constant mykey= "-----BEGIN PUBLIC KEY-----" \
& "ABC123"\
& "DEF456"\
& "-----END PUBLIC KEY-----"

but it appears that you can't concatenate strings like this . . . (using
6.6.0)

Is there a clean solution for this?

-- 
Dr. Richard E. Hawkins, Esq.
(702) 508-8462