I am trying to run a shell script from within a .vimrc file (three problems marked in the script):
function! CheckMe(file)
let shellcmd = 'checkme '.a:file
" Start the command and return 0 on success.
" XXX: How do you evaluate the return code?
execute '!'.shellcmd
if !result
return 0
endif
" Ending up here, the command returned an error.
" XXX: Where to you get the output?
let pair = split(output, '\S')
let line = pair[0]
let char = pair[1]
" Jump to the errenous column and line.
" XXX: Why does this not work?
normal '/\%'.line.'l\%'.char.'c'
return 1
endfunction
So to summarize, how do you get the result/output of the script, and why does the jump statement not work?
Additional details:
function! CheckMe(file)
let shellcmd = 'checkme '.a:file
let output=system(shellcmd)
if !v:shell_error
return 0
endif
" Are you sure you want to split on non-blanks? This
" will result in list of blank strings.
" My variant:
let [line, char]=split(output)
" Normal is not an execute: this is what it will do:
" «'/» means «Go to mark /», produces an error E78 because /
" is not a valid symbol for mark. Than normal stops after error occured.
" If you need to use variables in nomal use «execute 'normal '.ncmd».
" And you can not use «normal» to perform search
execute '/\%'.line.'l\%'.char.'c'
" or
call setpos('.', [0, line, char, 0])
return 1
endfunction
According to the Vim docs, the argument of the "normal" keyword is "executed like it is typed", but apparently that is not the case. It works fine when I type it (in the normal command mode, without leading ':'), but doesn't in the script ("E78: Unknown mark).
Just type «'/» to get this error.
I think you want to use the system()
function instead of the !
shell command.
From the linked page:
The result is a String. Example: :let files = system("ls " . shellescape(expand('%:h')))
and
The resulting error code can be found in |v:shell_error|.
So your output
would come from the result of the system call and your result
would come from v:shell_error
. Then your jump should work.
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