Ordinarily, multiple whitespace characters (space, tab, and newline) are collapsed into a single space.
Occasionally, you may want to produce several consecutive spaces,
either for purposes of example (e.g., what your program does with
multiple spaces as input), or merely for purposes of appearance in
headings or lists. Texinfo supports three commands:
@SPACE, @TAB, and @NL, all
of which insert a single space into the output. (Here,
@SPACE represents an ‘@’ character followed by a
space, i.e., ‘@ ’, TAB represents an actual tab character,
and @NL represents an ‘@’ character and end-of-line,
i.e., when ‘@’ is the last character on a line.)
For example,
Spacey@ @ @ @ example.
produces
Spacey example.
Do not follow any of these commands with braces.
To produce a non-breakable space, see @tie{}: Inserting an Unbreakable Space.