Re: Problems using value returned by external command

On 02/04/11 08:52, ZyX wrote:
> Reply to message «Re: Problems using value returned by external command»,
> sent 10:21:48 02 April 2011, Saturday
> by Gary Johnson:
>
>> As you've figured out, Vim's system() function includes in its
>> return value the newline at the end of the command's output. If you
>> need the result without the newline, use substitute() like this:
>>
>> let x = substitute(system("some command"), "\n", "", "")
> This will remove all newlines, not just at the end. If one knows that command
> will output newline at the end, then he should just use system(...)[:-2].

If a newline at the end is possible but not certain, and must be
removed, just use (untested)

substitute(system('foo bar baz'), '\n$', "", "")

where (IIUC)
\n (within single quotes) is passed unchanged to substitute() and
*then* interpreted by it as a linefeed
$ means end-of-string

Best regards,
Tony.
--
Stay away from flying saucers today.

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