What is the NOP code for vimscript?
VimScript interpreter ignores colons and spaces, so
: could be qualified as "nop" command. For example,
echo 'foo' | : is the same as just
However, there's a problem: due to Vi compatibility
:| is forcefully parsed as
echo 'foo' | : | echo 'bar' surprisingly transforms into
echo 'foo' | print | echo 'bar'.
To deal with this one can create a user-defined command, e.g.
command! -bar Nop :
Now this works:
echo 'foo' | Nop | echo 'bar'
According to the url provided:
The simplest possible statement in C that behaves like a NOP is the so-called null statement, which is just a semi-colon in a context requiring a statement. (A compiler is not required to generate a NOP instruction in this case; typically, no instructions whatsoever would be generated.)
Alternatively, an empty block (compound statement) may be used, and may be more legible:
What about "empty command"
func! Test() : endfunc