# How do I exit from a block **URL:** \ **Category:** ruby-talk\ **Created:** [13 November 2007 14:11 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161 "2007-11-13T14:11:21Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Jigar\_Gosar](https://avatars.discourse-cdn.com/v4/letter/j/4bbf92/32.png) [@Jigar\_Gosar](https://rubytalk.org/u/Jigar_Gosar)\ **Post date:** [13 November 2007 14:11 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/1 "2007-11-13T14:11:21Z")
base\_dir = "C:/pde" def list base\_dir   d= Dir.new base\_dir   d.each {|x|     return "asd" if x.eql? "."     return "asd" if x.eql? ".."     puts "Got #{x}"     full\_name = base\_dir+"/"+x     if(File.directory?(full\_name))       list full\_name     end   } end puts ( list base\_dir) The return inside the block in the "list" method actually return from the "list" method itself. But i just wanted to exit the block. how does one exit from a block in ruby? please advise. > **···** > > -- > Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/). ---
**Author:** ![Stefano\_Crocco](https://avatars.discourse-cdn.com/v4/letter/s/5f9b8f/32.png) [@Stefano\_Crocco](https://rubytalk.org/u/Stefano_Crocco)\ **Post date:** [13 November 2007 14:16 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/2 "2007-11-13T14:16:37Z")
Alle martedì 13 novembre 2007, Jigar Gosar ha scritto: > base\_dir = "C:/pde" > > def list base\_dir >   d= Dir.new base\_dir >   d.each {|x| >     return "asd" if x.eql? "." >     return "asd" if x.eql? ".." >     puts "Got #{x}" >     full\_name = base\_dir+"/"+x >     if(File.directory?(full\_name)) >       list full\_name >     end >   } > end > > puts ( list base\_dir) > > The return inside the block in the "list" method actually return from > the "list" method itself. But i just wanted to exit the block. how does > one exit from a block in ruby? > > please advise. You should use break instead of return. Stefano ---
**Author:** ![Robert\_K1](https://yyz1.discourse-cdn.com/flex029/user_avatar/rubytalk.org/robert_k1/32/1830_2.png) [@Robert\_K1](https://rubytalk.org/u/Robert_K1)\ **Post date:** [13 November 2007 14:23 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/3 "2007-11-13T14:23:00Z")
> base\_dir = "C:/pde" > > def list base\_dir >   d= Dir.new base\_dir >   d.each {|x| >     return "asd" if x.eql? "." >     return "asd" if x.eql? ".." >     puts "Got #{x}" >     full\_name = base\_dir+"/"+x >     if(File.directory?(full\_name)) >       list full\_name >     end >   } > end > > puts ( list base\_dir) Why do you use "puts" here? As far as I can see you do the printing in #list. > The return inside the block in the "list" method actually return from > the "list" method itself. But i just wanted to exit the block. how does > one exit from a block in ruby? > > please advise. Not exactly the answer you were looking for, but... 15:21:46 /$ ruby -r find -e 'Find.find("/tmp") {|f| puts f}' /tmp /tmp/uscreens /tmp/uscreens/S-rklemme /tmp/4052 /tmp/4052/sshlog /tmp/4052/servicelog /tmp/4052/runlog /tmp/4052/keylog /tmp/.X11-unix /tmp/.X11-unix/X0 Cheers robert > **···** > > 2007/11/13, Jigar Gosar \: > > -- > use.inject do |as, often| as.you\_can - without end ---
**Author:** ![Dam](https://avatars.discourse-cdn.com/v4/letter/d/f04885/32.png) [@Dam](https://rubytalk.org/u/Dam)\ **Post date:** [13 November 2007 14:41 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/4 "2007-11-13T14:41:10Z")
Or even Dir["/tmp/\*\*/\*"] see [class Dir - RDoc Documentation](http://www.ruby-doc.org/core/classes/Dir.html#M002348) Regards, > **···** > > On Tue, Nov 13, 2007 at 11:23:00PM +0900, Robert Klemme wrote: > > > 2007/11/13, Jigar Gosar \: > > \> base\_dir = "C:/pde" > > \> > > \> def list base\_dir > > \> d= Dir.new base\_dir > > \> d.each {|x| > > \> return "asd" if x.eql? "." > > \> return "asd" if x.eql? ".." > > \> puts "Got #{x}" > > \> full\_name = base\_dir+"/"+x > > \> if(File.directory?(full\_name)) > > \> list full\_name > > \> end > > \> } > > \> end > > \> > > Not exactly the answer you were looking for, but... > > > > 15:21:46 /$ ruby -r find -e 'Find.find("/tmp") {|f| puts f}' > > /tmp > > /tmp/uscreens > > /tmp/uscreens/S-rklemme > > /tmp/4052 > > /tmp/4052/sshlog > > /tmp/4052/servicelog > > /tmp/4052/runlog > > /tmp/4052/keylog > > /tmp/.X11-unix > > /tmp/.X11-unix/X0 > > -- > Damien MERENNE \ > [http://blog.cosinux.org/](http://blog.cosinux.org/) ---
**Author:** ![Jigar\_Gosar](https://avatars.discourse-cdn.com/v4/letter/j/4bbf92/32.png) [@Jigar\_Gosar](https://rubytalk.org/u/Jigar_Gosar)\ **Post date:** [13 November 2007 14:41 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/5 "2007-11-13T14:41:15Z")
def list base\_dir, prefix   Dir.foreach(base\_dir){|file|     if (file.eql? "." or file.eql? "..")       puts "break dosent work either"       break     end     # this if is the only solution i found, but its ugly.     if !(file.eql? "." or file.eql? "..")       puts "Got #{prefix+file.gsub(/.java$/,"")}" if file =~ /.\*\.java$/       full\_name = base\_dir+"/"+file       if(File.directory?(full\_name))         list full\_name, prefix+file+"."       end     end   } end list "c:/java/", "" break not only exited the block but also prevented execution with the next file in the directory, break actually broke the foreach loop entirely, I just wanted something like continue 🙂 please advise. I am trying to recurse all directories and find certain type of files. Stefano Crocco wrote: > **···** > > > Alle martedì 13 novembre 2007, Jigar Gosar ha scritto: > > > > >       list full\_name > > > please advise. > > > > You should use break instead of return. > > > > Stefano > > -- > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C). ---
**Author:** ![Jigar\_Gosar](https://avatars.discourse-cdn.com/v4/letter/j/4bbf92/32.png) [@Jigar\_Gosar](https://rubytalk.org/u/Jigar_Gosar)\ **Post date:** [13 November 2007 14:51 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/6 "2007-11-13T14:51:58Z")
Robert Klemme wrote: > 15:21:46 /$ ruby -r find -e 'Find.find("/tmp") {|f| puts f}' > /tmp > /tmp/uscreens > /tmp/uscreens/S-rklemme > /tmp/4052 > /tmp/4052/sshlog > /tmp/4052/servicelog > /tmp/4052/runlog > /tmp/4052/keylog > /tmp/.X11-unix > /tmp/.X11-unix/X0 > > Cheers > > robert Find look intresing, will solve my problem, thanks. But I still need a way to exit from a block 🙂 > **···** > > -- > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C). ---
**Author:** ![Jigar\_Gosar](https://avatars.discourse-cdn.com/v4/letter/j/4bbf92/32.png) [@Jigar\_Gosar](https://rubytalk.org/u/Jigar_Gosar)\ **Post date:** [13 November 2007 15:03 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/7 "2007-11-13T15:03:42Z")
Thanks a lot, this is so cool, how did I miss it my code has reduced to Dir["C:/pde/cvshome/trunk/OBox/\*\*/src/core/\*\*/\*.java"].each{|f|   file = f.gsub(/.\*\/src\/core\//,"")   file = file.gsub("/",".")   file = file.gsub(/.java$/,"")   puts file } Any way to shorten it further?? Damien Merenne wrote: > **···** > > > On Tue, Nov 13, 2007 at 11:23:00PM +0900, Robert Klemme wrote: > > > > > \> if(File.directory?(full\_name)) > > > /tmp/uscreens/S-rklemme > > > /tmp/4052 > > > /tmp/4052/sshlog > > > /tmp/4052/servicelog > > > /tmp/4052/runlog > > > /tmp/4052/keylog > > > /tmp/.X11-unix > > > /tmp/.X11-unix/X0 > > > > Or even > > > > Dir["/tmp/\*\*/\*"] > > > > see [class Dir - RDoc Documentation](http://www.ruby-doc.org/core/classes/Dir.html#M002348) > > > > Regards, > > -- > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C). ---
**Author:** ![Robert\_K1](https://yyz1.discourse-cdn.com/flex029/user_avatar/rubytalk.org/robert_k1/32/1830_2.png) [@Robert\_K1](https://rubytalk.org/u/Robert_K1)\ **Post date:** [13 November 2007 15:05 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/8 "2007-11-13T15:05:34Z")
That would be "next". Note that exiting from a block and switching to the next iteration is something completely different. You asked for exiting and thusly were correctly referred to "break". Cheers robert > **···** > > 2007/11/13, Jigar Gosar \: > > > def list base\_dir, prefix > >   Dir.foreach(base\_dir){|file| > >     if (file.eql? "." or file.eql? "..") > >       puts "break dosent work either" > >       break > >     end > > > >     # this if is the only solution i found, but its ugly. > >     if !(file.eql? "." or file.eql? "..") > >       puts "Got #{prefix+file.gsub(/.java$/,"")}" if file =~ /.\*\.java$/ > >       full\_name = base\_dir+"/"+file > >       if(File.directory?(full\_name)) > >         list full\_name, prefix+file+"." > >       end > >     end > >   } > > end > > > > list "c:/java/", "" > > > > break not only exited the block but also prevented execution with the > > next file in the directory, break actually broke the foreach loop > > entirely, I just wanted something like continue 🙂 > > please advise. > > -- > use.inject do |as, often| as.you\_can - without end ---
**Author:** ![Jigar\_Gosar](https://avatars.discourse-cdn.com/v4/letter/j/4bbf92/32.png) [@Jigar\_Gosar](https://rubytalk.org/u/Jigar_Gosar)\ **Post date:** [13 November 2007 15:16 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/9 "2007-11-13T15:16:37Z")
Thanks for clearing that up, I am thoroughly impressed with the ruby community, best in world. Even professional support is slower. I am a young convert from java 🙂 Robert Klemme wrote: > **···** > > > 2007/11/13, Jigar Gosar \: > > > > >       full\_name = base\_dir+"/"+file > > > next file in the directory, break actually broke the foreach loop > > > entirely, I just wanted something like continue 🙂 > > > please advise. > > > > That would be "next". Note that exiting from a block and switching to > > the next iteration is something completely different. You asked for > > exiting and thusly were correctly referred to "break". > > > > Cheers > > > > robert > > -- > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C). ---
**Author:** ![Dam](https://avatars.discourse-cdn.com/v4/letter/d/f04885/32.png) [@Dam](https://rubytalk.org/u/Dam)\ **Post date:** [13 November 2007 15:31 UTC](https://rubytalk.org/t/how-do-i-exit-from-a-block/42161/10 "2007-11-13T15:31:54Z")
If you want only the name of the file, use puts File.basename(f, ".java") Best, > **···** > > On Wed, Nov 14, 2007 at 12:03:42AM +0900, Jigar Gosar wrote: > > > my code has reduced to > > > > Dir["C:/pde/cvshome/trunk/OBox/\*\*/src/core/\*\*/\*.java"].each{|f| > >   file = f.gsub(/.\*\/src\/core\//,"") > >   file = file.gsub("/",".") > >   file = file.gsub(/.java$/,"") > >   puts file > > } > > > > Any way to shorten it further?? > > -- > Damien MERENNE \ > [http://blog.cosinux.org/](http://blog.cosinux.org/)