6.6.3 Output

library procedure: write obj

library procedure: write obj port

Writes a written representation of obj to the given port. Strings that appear in the written representation are enclosed in doublequotes, and within those strings backslash and doublequote characters are escaped by backslashes. Character objects are written using the ‘#\’ notation. ‘Write’ returns an unspecified value. The port argument may be omitted, in which case it defaults to the value returned by ‘current-output-port’.

library procedure: display obj

library procedure: display obj port

Writes a representation of obj to the given port. Strings that appear in the written representation are not enclosed in doublequotes, and no characters are escaped within those strings. Character objects appear in the representation as if written by ‘write-char’ instead of by ‘write’. ‘Display’ returns an unspecified value. The port argument may be omitted, in which case it defaults to the value returned by ‘current-output-port’.

Rationale: ‘Write’ is intended for producing machine-readable output and ‘display’ is for producing human-readable output. Implementations that allow “slashification” within symbols will probably want ‘write’ but not ‘display’ to slashify funny characters in symbols.

library procedure: newline

library procedure: newline port

Writes an end of line to port. Exactly how this is done differs from one operating system to another. Returns an unspecified value. The port argument may be omitted, in which case it defaults to the value returned by ‘current-output-port’.

procedure: write-char char

procedure: write-char char port

Writes the character char (not an external representation of the character) to the given port and returns an unspecified value. The port argument may be omitted, in which case it defaults to the value returned by ‘current-output-port’.