> a écrit:
> 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()
> 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.
Quite normal it doesn’t work, I made a mistake and mixed two versions.
The conditional should be either (to trigger the special mapping when
in the upper left corner of the window):
if winline() == 1 && wincol() - (&number ? &numberwidth : 0) == 1
or (to trigger the mapping in the upper left corner of the file):
if line(".") == 1 && col(".") == 1
As for <SID>: the “real name” of a <SID>-prefixed function is that
function’s name with a prefix unique to the script, so that in script
Foo “<SID>MyFunc()” is e.g. “<SNR>22_MyFunc()” and in script Bar
“<SID>MyFunc()” is e.g. “<SNR>47_MyFunc()”. In the script itself, the
script’s author can use <SID> without bothering to define a unique
prefix; the automatic replacement then ensures that functions with the
same names don’t clash outside the script.
> it's weird that echo wincol() starting from 7, instead of 1, when I move
> my cursor to the leftmost column.
That’s because wincol() really starts counting at the window’s left
side, before line numbers.
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