From: Krishna Dole <kpd@...>
Date: 2003-03-26T06:27:36+09:00
Subject: Re: Recursive methods allowed in Ruby?

Thanks Gennady, Martin & Brian! I'm back on track now...

Krishna

> -----Original Message-----
> From: Gennady [mailto:gfb@tonesoft.com]
> Sent: Tuesday, March 25, 2003 1:15 PM
> To: ruby-talk ML
> Subject: Re: Recursive methods allowed in Ruby?
> 
> 
> For this particular case, it is much easier to use class Find (require
> "find", p. 450 of Pickaxe) to do directory traversing for you. It works
> similar to Unix 'find' command.
> 
> Gennady.
> 
> ----- Original Message -----
> From: "Brian Candler" <B.Candler@pobox.com>
> To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
> Sent: Tuesday, March 25, 2003 1:01 PM
> Subject: Re: Recursive methods allowed in Ruby?
> 
> 
> > On Wed, Mar 26, 2003 at 05:50:47AM +0900, Krishna Dole wrote:
> > > def list_dirs( inDir )
> > >     Dir.foreach( inDir ) {|x|
> > >         print( x )
> > >         if File.ftype( x ) == "directory"
> > >             list_dirs( x )
> > >         end
> > >     }
> > > end
> > >
> > > ARGV.each{ |dirName|
> > >     list_dirs(dirName)
> > > }
> >
> > Dir.foreach lists "." (current directory" and ".." (parent directory)
> which
> > is why you are getting infinite recursion. Try adding:
> >    next if x == "." or x == ".."
> >
> > To make your program work you will also need to chdir() into each
> directory,
> > or else build up a pathname, so that directories within directories are
> > found. Something like this:
> >
> >    path = inDir + "/" + x
> >    if File.ftype( path ) == "directory"
> >      list_dirs( path )
> >    end
> >
> > Regards,
> >
> > Brian.
> >
> >
> 
> 
>