Input / OutputPortsFormatted I/O

Formatted I/O

GOO provides convenient s-expression reading/writing facilities.
 read (x|<in-port> => <any>) G
returns sexpr result of parsing characters in a sequence.
 write (x|<out-port> y|<any>) G
verbose printing. prints strings with double quotes etc.
 writeln (x|<out-port> y|<any>) G
== (seq (write x y) (newline x))
 emit (x|<out-port> y|<any>) G
concise printing (e.g., prints strings without double quotes).
 msg (x|<out-port> message|<seq> args|...) G
formatted output using special commands embedded in message. supported commands are:
  • %= -> (write x arg)
  • %s -> (display x arg)
  • %d -> (write x arg)
  • %% -> (write-char x #\%)
which consume one argument at a time. otherwise subsequent message characters are printed to port x (cf. Dylan's and CL's format).
 post (message|<seq> args|...) G
== (app msg out message args)


Input / OutputPortsFormatted I/O