The following troff commands cause a break (end of a line):
Use ` (backquote) in place of the leading . (dot) to suppress the break.
- Begin a new page
- Center lines
- Start filling
- Stop filling
- Vertical space
- Indent left margin
- Temporary indent the left margin of the next line.
(blank lines)are printed as they appear. That is, leading white space ends the previous line.
and leading spaces
wo\p rdcauses a break at the end of word, and has the line up to, including, word spread out to fill its line.
(eof)causes a break.
A trailing \c in a line glues this line to the next text line; there can be control lines in between.
turns on adjustment according to
key, or restores the previous adjustment if no key is given.
The current adjustment is in the number register .j. It's not a number, I don't know what it's doing in a number register, but there you have it.
does the same as .ad l, but doesn't affect the number
turns it off,
turns it on,
and the number register
is 1 in fill mode, else 0.