I look now at streams image. I actually not use XStreams but look at it
some times ago. So I solve your task with such code:
s:= FileLocator changes reading .
reversed := [ :out | s -= 1. [s position=0] whileFalse: [ out put: s peek.
s -- 1 ] ] reading.
lines := (reversed ending: Character cr asIn
Le 29 juin 2014 16:42, "Sven Van Caekenberghe" a écrit :
>
>
> On 29 Jun 2014, at 16:18, Denis Kudriashov wrote:
>
> > It should be trivial with XStream
>
> I would love to see that code.
>
> We have Xtreams building happily
>
> https://ci.inria.fr/pharo-contribution/job/Xtreams/
>
> it is wait
On 29 Jun 2014, at 16:18, Denis Kudriashov wrote:
> It should be trivial with XStream
I would love to see that code.
We have Xtreams building happily
https://ci.inria.fr/pharo-contribution/job/Xtreams/
it is waiting in the trenches, waiting to be used...
> 2014-06-27 21:45 GMT+04:00 Sven
It should be trivial with XStream
2014-06-27 21:45 GMT+04:00 Sven Van Caekenberghe :
>
> http://stackoverflow.com/questions/10164597/how-would-you-implement-tail-efficiently
> http://git.savannah.gnu.org/cgit/coreutils.git/tree/src/tail.c
>
> I would work with the growing buffer read backwards.
On Sat, Jun 28, 2014 at 08:19:41AM +0200, p...@highoctane.be wrote:
> Le 28 juin 2014 01:18, "David T. Lewis" a ??crit :
> >
> > On Fri, Jun 27, 2014 at 06:50:11PM +0200, p...@highoctane.be wrote:
> > > Thanks.
> > >
> > > But this would give me the 200 last chars. I am interested in the 200
> las
Le 28 juin 2014 01:18, "David T. Lewis" a écrit :
>
> On Fri, Jun 27, 2014 at 06:50:11PM +0200, p...@highoctane.be wrote:
> > Thanks.
> >
> > But this would give me the 200 last chars. I am interested in the 200
last
> > lines.
> >
> > Now, I did this:
> >
> > command := 'tac ', file fullName, ' |
On Fri, Jun 27, 2014 at 06:50:11PM +0200, p...@highoctane.be wrote:
> Thanks.
>
> But this would give me the 200 last chars. I am interested in the 200 last
> lines.
>
> Now, I did this:
>
> command := 'tac ', file fullName, ' | head -200'.
> ^ (PipeableOSProcess command: command) output.
>
> w
http://stackoverflow.com/questions/10164597/how-would-you-implement-tail-efficiently
http://git.savannah.gnu.org/cgit/coreutils.git/tree/src/tail.c
I would work with the growing buffer read backwards.
It would be great fun doing that in Pharo.
On 27 Jun 2014, at 18:50, p...@highoctane.be wrote:
Thanks.
But this would give me the 200 last chars. I am interested in the 200 last
lines.
Now, I did this:
command := 'tac ', file fullName, ' | head -200'.
^ (PipeableOSProcess command: command) output.
which did the trick but isn't portable at all (Linux here).
I had a look at RemoteString a
If you have a MultiByteFileStream you can do
stream position: stream size - 200.
stream next: 200.
Have a look at RemoteString, which is the class used to read the source
from the source and changes files (without loading all of them into memory)
On Fri, Jun 27, 2014 at 6:15 PM, p...@highoctane
I wonder how you guys would read the last n lines from a file in Pharo
without reading through the whole thing.
Is there code doing just that somewhere?
The code I have is a shell script doing a 'tac file | tail -200 >
/temp/something'
I can always do that through OSProcess but wondered if there
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