(read-descr file) -> string or #f
(read-descr file integer) -> value
Reads from the given <file>. If given the optional integer argument, it returns only that number of bytes.
Examples:
>> (define a (open-file "test.txt" "r")) :: [fileopen test.txt] >> (read-file a) :: "Just testing." >> (read-file a) :: #f >> (read-file a 1) :: "J"