Contents of file named text

setbb str "ABC.XYZ"
message "Letters 2 and 3 of the string are (substring 2 3 %str%)"
message "The Jackson Five sang (change XYZ 123 %str%)"
message "Prefix is (before . %str%); suffix is (after . %str%)"
message "Blank replacing the dot yields (delete . %str%)"
message "Substitution is (change . ' ' %str%)"
message "All in lower case: (changecase L %str%)"

setbb rts "ABC 123 XYZ"
message "There are (itemcount %rts%) items in the string"
message "Item 2 is (item 2 %rts%)"
message "The last two are (items 2 3 %rts%)"
message "Does str exist? (existbb str)"
message "  how about xyzzy? (existbb xyzzy)"