On 08/25/2011 06:17 AM, John Beckett wrote:
lessthanideal wrote:
function RangeTest() range
echo a:firstline . " " . a:lastline
endfunction
command -range=% CallRT<line1>,<line2>call RangeTest()
These two commands give the same output
:CallRT
:%CallRt
Could the function distinguish between the two?
I don't think the two cases can be distinguished. A possible
workaround would be to omit '=%' so the default range is the
current line. We would assume that no one wants to sort just
one line, so in the function a test could say if first and last
lines are equal, use the default wanted by the function.
I like the "omit the =%" suggestion, but might be tempted to check
if a:firstline == 1 && a:lastline == line('$')
instead, because the range can be more than just "%". E.g.
something like
:1,$CallRT
:2-1,$CallRT
:1,18CallRT "assuming the last line is 18
:?SomethingOnFirstLine?,/OnLastLine/CallRT
all of which are effectively passing a full-file range.
Hmmm. I just remembered something. You can use this trick:
let cmd = histget(':', -1)
If cmd is just 'CallRT' then no range was used.
Though expecting particular sequences in the history can break in
fragile ways when you have things like
:g/pattern/;+5CallRT
-tim
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