reformatting

reformatting
These are useful to reformat text paragraphs or chunks of code:

V= - select text, then reformat with =
= - will correct alignment of code
== - one line;
gq - reformat paragraph
Options to change how automatic formatting is done:

:set formatoptions (default "tcq")
t - textwidth
c - comments (plus leader -- see :help comments)
q - allogw 'gq' to work
n - numbered lists
2 - keep second line indent
1 - single letter words on next line
r - (in mail) comment leader after
Other related options:

:set wrapmargin
:set textwidth