Thread overview
BFS in recls
Aug 10, 2004
Adi Shavit
Aug 12, 2004
Matthew
Aug 15, 2004
Adi Shavit
Aug 16, 2004
Matthew
Jun 17, 2010
Matt Wilson
August 10, 2004
Hi Mathew,

  A feature of file searches I've been yearning for for years, is BFS
(Breadth First Search) searching.
When searching for a file you usually have general  idea about where it is.
The fact the dir. AAA has 100s of sub dirs. usually, isn't relevant, but
still they'll all be checked before going into the rest.
I'd love to see a BFS pattern file search, a.k.a onion peel searches ("Ogres
are like onions"...)

Thanks,
Adi


August 12, 2004
Do you mean search the files in a given directory before searching its subdirectories? I think that's what it does (though I now need to go and check).


"Adi Shavit" <adish@gentech.co.il> wrote in message news:cfbbp3$f0v$1@digitaldaemon.com...
> Hi Mathew,
>
>   A feature of file searches I've been yearning for for years, is BFS
> (Breadth First Search) searching.
> When searching for a file you usually have general  idea about where it is.
> The fact the dir. AAA has 100s of sub dirs. usually, isn't relevant, but
> still they'll all be checked before going into the rest.
> I'd love to see a BFS pattern file search, a.k.a onion peel searches ("Ogres
> are like onions"...)
>
> Thanks,
> Adi
>
>


August 15, 2004
yes and no.
Yes, check the files in a given directory before searching its
subdirectories, but that's not all.
The next directory you check is not one of the subdirs, but the files in a
sibling dir.

It's like peeling an onion.
Say the root is the starting dir.
First check the files in the root.
Then check the files a "distance" of one dir away from the root, in all the
roots subdir.
Then check the files in all the subdirs' subdirs, a distance of 2 from the
root and so on.
Of course, you must watch out for soft links etc.

The way you do this is quite simple algorithmically.
Just push all the subdirs of the current dir into a queue.
Dequeue the queue to get the next dir to search.
Stop when there are no more entries in the queue.

Naturally, see google.

Adi


"Matthew" <admin.hat@stlsoft.dot.org> wrote in message news:cfehb5$1f16$1@digitaldaemon.com...
> Do you mean search the files in a given directory before searching its
subdirectories? I think that's what it does
> (though I now need to go and check).
>
>
> "Adi Shavit" <adish@gentech.co.il> wrote in message
news:cfbbp3$f0v$1@digitaldaemon.com...
> > Hi Mathew,
> >
> >   A feature of file searches I've been yearning for for years, is BFS
> > (Breadth First Search) searching.
> > When searching for a file you usually have general  idea about where it
is.
> > The fact the dir. AAA has 100s of sub dirs. usually, isn't relevant, but
> > still they'll all be checked before going into the rest.
> > I'd love to see a BFS pattern file search, a.k.a onion peel searches
("Ogres
> > are like onions"...)
> >
> > Thanks,
> > Adi
> >
> >
>
>


August 16, 2004
Doh! What a goose am I. (Been having far too little time to think/sleep of late. Well, that's my excuse and I'm sticking to it ...)

BFS: Leave it with me. I can certainly see the utility in it, but it means providng a separate search implementation, so it'll have to be an option for version 1.8, or something like that. :)

"Adi Shavit" <adish@gentech.co.il> wrote in message news:cfon3g$16fl$1@digitaldaemon.com...
> yes and no.
> Yes, check the files in a given directory before searching its
> subdirectories, but that's not all.
> The next directory you check is not one of the subdirs, but the files in a
> sibling dir.
>
> It's like peeling an onion.
> Say the root is the starting dir.
> First check the files in the root.
> Then check the files a "distance" of one dir away from the root, in all the
> roots subdir.
> Then check the files in all the subdirs' subdirs, a distance of 2 from the
> root and so on.
> Of course, you must watch out for soft links etc.
>
> The way you do this is quite simple algorithmically.
> Just push all the subdirs of the current dir into a queue.
> Dequeue the queue to get the next dir to search.
> Stop when there are no more entries in the queue.
>
> Naturally, see google.
>
> Adi
>
>
> "Matthew" <admin.hat@stlsoft.dot.org> wrote in message news:cfehb5$1f16$1@digitaldaemon.com...
> > Do you mean search the files in a given directory before searching its
> subdirectories? I think that's what it does
> > (though I now need to go and check).
> >
> >
> > "Adi Shavit" <adish@gentech.co.il> wrote in message
> news:cfbbp3$f0v$1@digitaldaemon.com...
> > > Hi Mathew,
> > >
> > >   A feature of file searches I've been yearning for for years, is BFS
> > > (Breadth First Search) searching.
> > > When searching for a file you usually have general  idea about where it
> is.
> > > The fact the dir. AAA has 100s of sub dirs. usually, isn't relevant, but
> > > still they'll all be checked before going into the rest.
> > > I'd love to see a BFS pattern file search, a.k.a onion peel searches
> ("Ogres
> > > are like onions"...)
> > >
> > > Thanks,
> > > Adi
> > >
> > >
> >
> >
>
>


June 17, 2010
"Adi Shavit" <adish@gentech.co.il> wrote in message news:cfbbp3$f0v$1@digitaldaemon.com...
> Hi Mathew,
>
>  A feature of file searches I've been yearning for for years, is BFS
> (Breadth First Search) searching.
> When searching for a file you usually have general  idea about where it
> is.
> The fact the dir. AAA has 100s of sub dirs. usually, isn't relevant, but
> still they'll all be checked before going into the rest.
> I'd love to see a BFS pattern file search, a.k.a onion peel searches
> ("Ogres
> are like onions"...)

Well, recls 100%.NET (http://recls.net) has BFS. "Regular" recls still does not, alas, and that'll have to wait until recls 2.0.