Re: Problems using value returned by external command

On 2/04/11 12:57 PM, Spiros Bousbouras wrote:
> The following on GNU/Linux with vim version 7.1
>
> prompt> cat myscript
> #!/bin/sh
> echo 1
>
> prompt> cat myscript.vim
> function! Check()
> let l:r = system("./myscript")
> if l:r == "1"
> echo "Good"
> else
> echo "Length of l:r is" strlen(l:r)
> echoerr "l:r is" l:r
> endif
> endfunction
>
> I start a vim session and do
>
> :source myscript.vim
> :echo Check()
>
> and get
>
> Length of l:r is 2
> Error detected while processing function Check:
> line 6:
> l:r is 1^@
> 0
>
> Replacing inside Check()
> if l:r == "1"
> with
> if l:r == "1\000"
> doesn't make any difference.

Try

if l:r == "1\n"

I think it's :echoerr that is not displaying the \n in the string
correctly, but interpreting it as if it were \n in a buffer (which
stands in place of \0). If you just used :echo you would see 1 followed
by a blank line.

Ben.

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