Re: how to display window number?

On 11/10/10 01:16, Thomas Adam wrote:
> On 10 October 2010 00:47, Tony Mechelynck<antoine.mechelynck@gmail.com> wrote:
>> - To display the window number on the status line: use a custom status line
>> (see http://vim.wikia.com/wiki/Show_fileencoding_and_bomb_in_the_status_line
>> for an example) and include in it the string
>>
>> %{winnr()}
>>
>> where you want the window number to appear. Add any spaces, punctuation,
>> etc. to your liking outside the %{...} and remember that in the operand of a
>> :set statement, any spaces, double quotes, vertical bars or backslashes must
>> be backslash-escaped.
>
> This is interesting. What would I need to go away and read to
> conditionally only display this number if there's>1 split window? I
> basically only want to display that number from ${winnr()} if I've
> split a window, not if it just contains one split.
>
> Kindly,
>
> -- Thomas Adam
>

Well, display that if the highest window number is greater than one,
otherwise display the empty string at the same location:

if has('statusline') && has('windows')
set stl=%{winnr('$')\ >\ 1?winnr().')':''}…
endif

replacing the … by the rest of your custom statusline settings: this
should display 1) 2) 3) etc. as a prefix at the left end of your
statuslines if there are more than one, or no prefix if only one (split)
window is present (and give no error when running in a Vim instance with
limited capabilities: that's the purpose of the ":if" wrapper). There
are (intentionally) no double quotes in that option value.

See
:help winnr()
:help 'statusline'
:help expr1
:help option-backslash
" etc.

Best regards,
Tony.
--
"Why are we importing all these highbrow plays like `Amadeus'? I could
have told you Mozart was a jerk for nothing."
-- Ian Shoales

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