I am considering using Vim's
auto-format feature (i.e., adding
formatoptions). However, I can't seem to figure out a combination of options that will give me the configuration that I want. For reference, I am using Vim 8.1 (from May 18, 2018).
I mainly use Vim for coding, and obviously I only want to automatically format comments. When writing comments alone, then
formatoptions=acoqr seems to give me exactly what I want.
For code, I also want Vim to force me to break a line after
textwidth has been reached, but I do not want it to reformat whole paragraphs when lines are edited. Using
formatoptions=t seems to give me the behavior that I want.
However, if I try to combine the two, with
formatoptions=acoqrt, then Vim starts to reformat whole blocks of code as well as comments. This seems to contradict the information in
:help fo-table, which states:
a Automatic formatting of paragraphs. Every time text is inserted or deleted the paragraph will be reformatted. See |auto-format|. When the 'c' flag is present this only happens for recognized comments.
That is, I would expect that since I am including
formatoptions, then the auto-formatting behavior should apply to comments, and the ordinary
t behavior (inserting newlines but not reformatting whole paragraphs) should apply to code.
Am I missing something? Is this a bug? If so, is there a workaround?