5.8 Input/output

This chapter describes Scheme’s libraries for performing input and output:

(rnrs io ports (6))

it is an I/O layer for conventional, imperative buffered input and output with text and binary data;

(rnrs io simple (6))

it is a convenience library atop the (rnrs io ports (6)) library for textual I/O, compatible with the traditional Scheme I/O procedures.

The section on conditions defines a condition–type hierarchy that is exported by both the (rnrs io ports (6)) and (rnrs io simple (6)) libraries.