On Aug 25, 2013 10:36 PM, "Liang Li" <[email protected]> wrote:
>
> Hey guys, this is sort of an obscure problem, I'm not sure if you have
any suggestions. I'm running vim 7.3.3 (locally) on an android phone, via
Connectbot, and I'm getting a crash that can't be reproduced on a computer
due to redr!, maybe because of memory constraints or something. For
example, the following script will crash my phone after about 3 seconds
Why not use some more recent version? There were plenty of bug fixes.
> while 1
> if reltime()[1]%2
> exe "norm! \<c-e>"
> else
> exe "norm! \<c-y>"
> en
> redr!
> endwhile
>
> On the "verbose" error log I get an "Interrupted" message and it jumps
straight into my VimLeavePre autocommmands. I'm mostly looking for a
work-around or any suggestions as to how to avoid this, or whether it's
possible to do a safer redraw, etc. Try / catch, for example, doesn't work.
Try setting 'nolazyredraw'. This should cause normally omitted redraws
while script is running. I have no other idea how to cause a redraw except
for :execute "normal!\<C-l>", which should not make any difference.
> The actual script I'm working on, if this is relevant, is a mouse panning
thing, a la Adobe reader:
>
> nn <silent> <leftmouse> :call getchar()<cr><leftmouse>:exe
(MousePan()==1? "keepj norm! \<lt>leftmouse>":"")<cr>
> let glidestep=[99999999]+map(range(11),'11*(11-v:val)*(11-v:val)')
> fun! MousePan()
> if v:mouse_lnum>line('w$') || (&wrap &&
v:mouse_col%winwidth(0)==1) || (!&wrap &&
v:mouse_col>=winwidth(0)+winsaveview().leftcol) || v:mouse_lnum==line('$')
> if line('$')==line('w0') | exe "keepj norm!
\<c-y>" |en
> return 1 | en
> exe "norm! \<leftmouse>"
> let
[veon,fr,tl,dvl,dhl]=[&ve==?'all',-1,repeat([reltime()],4),[0,0,0,0],[0,0,0,0]]
> let v=winsaveview()
> let [v.col,v.coladd]=[0,v.curswant]
> while getchar()=="\<leftdrag>"
> let
[dV,dH,fr]=[min([v:mouse_lnum-v.lnum,v.topline-1]),
min([veon*(v:mouse_col-v.coladd-1),v.leftcol]),(fr+1)%4]
> let
[v.topline,v.leftcol,v.lnum,v.coladd,tl[fr],dvl[fr],dhl[fr]]=[v.topline-dV,v.leftcol-dH,v:mouse_lnum-dV,v:mouse_col-1-dH,reltime(),dV,dH]
> call winrestview(v)
> redr!
> endwhile
> let
[sv,sh]=[dvl[0]+dvl[1]+dvl[2]+dvl[3],dhl[0]+dhl[1]+dhl[2]+dhl[3]]
> let [ctl,cln,sv]=sv>2?
['-(v.topline>1)','-(v.lnum>1)',sv+10] : sv<-2?
['v.topline<'.line('$'),'v.lnum<'.line('$'),-sv+10] :
['-(v.topline>1)','-(v.lnum>1)',0]
> let [clc,cca,sh,vc,hc]=sh>2?
['-(v.leftcol>0)','-(v.coladd>0)',sh+10,0,0] : sh<-2? ['1','1',-sh+10,0,0]
: ['1','1',0,0,0]
> if !eval(join(reltime(tl[(fr+1)%4]),' || 20000<')) || !sv
&& !sh | return | en
> while !getchar(1) && sv+sh>0
> let
[y,x,vc,hc]=[vc>get(g:glidestep,sv,1),hc>get(g:glidestep,sh,1),vc+1,hc+1]
> if y+x
> let [v.topline,v.lnum,sv,vc]+=y?
[eval(ctl),eval(cln),-1,-vc] : [0,0,0,0]
> let [v.leftcol,v.coladd,sh,hc]+=x?
[eval(clc),eval(cca),-1,-hc] : [0,0,0,0]
> call winrestview(v)
> redr!
> en
> endw
> endfun
>
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