The following character names must be present in all conforming implementations:
NewlineThe character that represents the division between lines.
An implementation must translate between #\Newline,
a single-character representation, and whatever external representation(s)
may be used.
SpaceThe space or blank character.
The following names are semi-standard; if an implementation supports them, they should be used for the described characters and no others.
RuboutThe rubout or delete character.
PageThe form-feed or page-separator character.
TabThe tabulate character.
BackspaceThe backspace character.
ReturnThe carriage return character.
LinefeedThe line-feed character.
In some implementations,
one or more of these character names
might denote a standard character;
for example,
#\Linefeed and #\Newline might be the same character
in some implementations.