Re: vim: map a key to "conditionally" override built-in behavior

On 2/19/2013 4:20 AM, Paul Isambert wrote:
> You can use <expr> to define a mapping with a function:
>
> function! <SID>Map()
> if line(".") == 1 && wincol(".") == 1
> return ":q\r"
> else
> return "h"
> endif
> endfunction
>
> nnoremap <expr> h <SID>Map()
thanks!

I still don't fully understand the theory of this <SID> thing (even read
: help <SID>)
but per my test this doesn't work well.
it's weird that echo wincol() starting from 7, instead of 1, when I move
my cursor to the leftmost column.

regards
ping

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