James Hilton (novelist) months later it appeared as a book in Britain. Hilton, who lived and worked in Hollywood beginning in the mid-1930s, won an Academy Award in 1942 for his work on the screenplay of "Mrs. Miniver", based on the novel by Jan Struther. He presented six episodes of "Ceiling Unlimited" (1943) and hosted "The Hallmark Playhouse" (1948–1953) for CBS Radio. One of his later novels, "Morning Journey", was about the film business. Some of Hilton's novels were filmed: Hilton co-wrote the book and lyrics for "Shangri-La", a disastrous 1956 Broadway musical adaptation of "Lost Horizon". There is one sequel to "Lost
S-expression be formatted as pretty printed S-expressions using the function PPRINT (note: with two Ps, short for "pretty"-print). Lisp programs are valid s-expressions, but not all s-expressions are valid Lisp programs. codice_21 is a valid s-expression, but not a valid Lisp program, since Lisp uses prefix notation and a floating point number (here 1.0) is not valid as an operation (the first element of the expression). An S-expression preceded by a single quotation mark, as in codice_22, is syntactic sugar for a quoted S-expression, in this case codice_23. S-Expressions are often compared to XML, a key difference being that S-Expressions are