This is probably an incredibly simple question, but I did not find any answer so far (I must lack the right sources, and I don't know where to search in vim's help).
I have a condition and I would like it to include 'AND', like
if (condition1 .AND. condition2)
"do what I want you to do
endif
but I couldn't find the syntax. Same thing for 'OR'.
Vimscript use C-like operators && and ||.
You can find description of their usage on :h expr2. Some important points mentioned by the doc are the following
You'll find that the operators can be concatenated and && takes precedence over ||, so
&nu || &list && &shell == "csh"
Is equivalent to
&nu || (&list && &shell == "csh")
Also once the result is known, the expression "short-circuits", that is, further arguments are not evaluated. This is like what happens in C.
If you use:
if a || b
The expression will be valid even is b is not defined.