The escape character, \
by default, is always followed by at
least one more input character, making an escape sequence. Any
token \X
with X not in the list below emits a
warning and interpolates character X. Note the entries for
\.
, which may be obscured by the leader dots, and for
\RET
and \SPC
, which are sorted
alphabetically, not by code point order. See Using Escape Sequences.