gmane.comp.lang.ruby.general

Re: from ruby/RoR to Java (framework unknown) :(

Eleanor McHugh — 2008-07-06T00:30:17

Indeed. Although its not that slow compared to other dynamic JVM languages of similar vintage. JRuby runs rings around it though ;) Ellie Eleanor McHugh Games With Brains http://slides.games-with-brains.net ---- raise ArgumentError unless < at >reality.responds_to? :reason

Re: Does Ruby have any advantage over Python to create semantic applications?

Costan — 2008-07-06T00:01:41

Thanks a lot Eric, Dave and Mark, I found the text that made me think of Ruby as having some advantages for semantic processing: " I will probably still fall back on Ruby for text-processing scripts as its always been stellar for those kinds of tasks" (in http://blog.cbcg.net/articles/2007/04/22/python-up-ruby-down-if-that-runtime-dont-work-then-its-bound-to-drizzown). But reading your answers it seems there's no real advantage for this particular purpose so that guy must be wrong... I still will need to investigate more or just try both to decide which one fits better my needs. I don't know what you meant by "fun" and "beautiful" and although the Ruby's there's-more-than-one-way-to-do-it sounds like more things to remember and more time needed to learn it and also like giving freedom to users-programmers because the author lack the clarity on what is the best way to do it, I'm really intrigued and attracted by those "fun" and "beautiful" words (could it be related with what I read in Why's manual that t

Re: ruby wish-list

Nobuyoshi Nakada — 2008-07-05T23:42:43

Hi, At Wed, 2 Jul 2008 10:24:21 +0900, Roger Pack wrote in [ruby-talk:306957]: Of course, it's been possible also in 1.8 or earlier, even in 0.95. $ ./ruby -v -e 'print "abc\x14"'| od -tx1z ruby - version 0.95 (95/12/21) 0000000 61 62 63 14 >abc.< 0000004

Re: Parameter name reflection

ara.t.howard — 2008-07-05T23:08:47

On Jul 5, 2008, at 2:36 PM, Oliver Saunders wrote: bad idea ihmo - it'll be almost impossible to map valid http request names to ruby vars, for instance you'll have 'a var with a space' #=> ?? 'a var with a /' #=> ?? etc etc in addition the only way you can do that is with a heavy duty eval process (vars set by eval are only available to further evals) which makes for a super slow request loop. so this sounds like it'll end up being a huge stack of evals - not metaprogramming - unless i'm misunderstanding. can you sketch out an example of what you'd like to do for us? cheers. a < at > http://codeforpeople.com/ -- we can deny everything, except that we have the possibility of being better. simply reflect on that. h.h. the 14th dalai lama

Re: irb not recognized in windows command line

Bert Ameche — 2008-07-05T23:02:21

Thanks so much, Joel. I got it working in the meantime by uninstalling Ruby and installing Instant Rails.

Re: irb not recognized in windows command line

Bert Ameche — 2008-07-05T23:01:23

Thanks you very much, Tim! I actually uninstalled Ruby in the meantime and installed InstantRails. It's working now.

ANN: Sequel 2.2.0 Released

Jeremy Evans — 2008-07-05T22:55:40

Sequel is a lightweight database access toolkit for Ruby. * Sequel provides thread safety, connection pooling and a concise DSL for constructing database queries and table schemas. * Sequel also includes a lightweight but comprehensive ORM layer for mapping records to Ruby objects and handling associated records. * Sequel makes it easy to deal with multiple records without having to break your teeth on SQL. * Sequel currently has adapters for ADO, DB2, DBI, Informix, JDBC, MySQL, ODBC, OpenBase, Oracle, PostgreSQL and SQLite3. Sequel 2.2.0 has been released and should be available on the gem mirrors. 2.2.0 has the following exciting new features: The Most Powerful and Flexible Associations of Any Ruby ORM ----------------------------------------------------------- Sequel can now support any association type supported by ActiveRecord, and many association types ActiveRecord doesn't support. Association callbacks (:before_add, :after_add, :before_remove, :after_remove) have been added, and work f

Re: irb not recognized in windows command line

Joel VanderWerf — 2008-07-05T22:12:36

Maybe helpful, maybe not: Are you using a command prompt window that was open before you installed ruby? If so, try opening a new window. The environment variable settings performed by the installer (such as the PATH to search for executable programs) will not take effect retroactively.

Re: irb not recognized in windows command line

Tim Hunter — 2008-07-05T22:10:33

Your path has nothing to do specifically with Ruby. It's part of the way Windows command prompt windows work. Your path is a list of directories. When you enter a command at a command prompt, if the command is not built into Windows itself (like dir, or chdir), then Windows searches for the command in the directories listed in your path. You can make temporary changes to your path using the SET PATH= command, or permanent changes via the System tab in Control Panel. When you install Ruby using the One-Click Installer, the installer changes your path to include the directory in which it installs the ruby and irb commands. That change does not affect existing command prompt windows, it only affects command prompt windows that you start after running the One-Click Installer. If you continue to use an command prompt window that was open before you used the One-Click Installer, then that window is still using the old path and therefore can't find ruby or irb. If you haven't started a new command p

Re: irb not recognized in windows command line

Bert Ameche — 2008-07-05T21:34:33

I forgot to mention that 'ruby -v' does not work either - get the same message "ruby" is not recognized.

Re: irb not recognized in windows command line

Bert Ameche — 2008-07-05T21:13:51

Thank you, Bill! As you can probably tell, I'm not a programmer. I thought the paths would be created automatically since the author of Beginning Ruby just said to type irb at the command prompt to get irb(main):001:0> and this will shows it's installed correctly. When I enter Ruby commands into fxri, the expected results appear, so that is set up correctly. How would I create a path to ruby/bin? The books I have do not go into paths unfortunately. Bert

Re: irb not recognized in windows command line

Bill Walton — 2008-07-05T20:54:23

Hi Bert, Have you checked your PATH? It should contain an entry to ruby/bin. If not, you'll need to add it. You might also check, just to make sure ruby itself is operable, 'ruby -v' at the command line. HTH, Bill ----- Original Message ----- Bert Ameche wrote:

irb not recognized in windows command line

Bert Ameche — 2008-07-05T20:39:47

I'm reading Beginning Ruby and followed the installation process , using the one-click installer for Windows from Ruby Forge. I successfully loaded fxri. Received the following message after typing irb in the Windows command prompt: 'irb' is not recognized as an internal or external command, operable program or batch file. Any suggestions on how to get this working will be greatly appreciated.

Re: Parameter name reflection

Oliver Saunders — 2008-07-05T20:36:02

Thanks Matthias that looks pretty cool. < at >ara.t.howard: this is useful as a meta-programming technique. Here's an example: # controller implementation def index_action(id, style, redirected_from) local_variables # pre-populated with values from HTTP request params end

Re: Getting Folder Size

John Joyce — 2008-07-05T20:15:10

On Jul 5, 2008, at 1:16 PM, Seebs wrote: To explain it a little further... technically, even the system is doing some recursion here when it shows you a folder size. Directories don't really have any size to speak of since they are really just abstract ways to organize data. Doing the recursion is a good idea. It gives you a chance to get a more accurate result. Sometimes the system call may be faster though depending on just how many files are *in* a directory. The system may have some meta data available already.

Re: Problem with unpack

Eric Hodel — 2008-07-05T19:50:33

Yes! sorry!

rainbow tables

Thomas Roberts — 2008-07-05T19:35:51

hi, here is my script so far to make rainbow tables require 'digest/md5' string = "a" File.open("rainbow.txt", "a") do |f| while string != "zzzzzzzz" md5 = Digest::MD5.hexdigest(string) f.puts string + " : " + md5 string = string.next end end but string only goes into lowercase characters i.e z > aa i want it to do z > A thanks...

Re: sqlite3 Re: title avoiding spurious response

Jeremy Hinegardner — 2008-07-05T19:01:43

try this from the sqlite3 command line and see what you get: select id, typeof( title ), typeof( guid ) from moz_bookmarks; That will tell you the internal sqlite storage type of the field you are requesting. I'm assuming the problem is with one of those fields, so try typeof() on any field that you want to test out. enjoy, -jeremy

Re: [ANN] amalgalite 0.2.0 Released

Jeremy Hinegardner — 2008-07-05T18:46:29

This would be a bug in the example. I've run it so many times that the db already existed all the time ran it. This is the patch: < at >< at > -37,6 +37,7 < at >< at > unless schema.tables['gems'] author VARCHAR(128) ); SQL + db.reload_schema! end # Or download a new example script from github: http://github.com/copiousfreetime/amalgalite/tree/master/examples/gem-db.rb I haven't done any testing with a Firefox 3 bookmarks file. I haven't done anything specifically to address this, but I could see if SQLite internally had decided that one of the values in there was to be stored as a BLOB storage type that amalgalite would have failed before. enjoy, -jeremy

Re: Ruby C API Question

Seebs — 2008-07-05T18:21:37

No. If it were "just a style thing", there would not exist code where the semantics are significantly changed by choice of declaration style, but there does. Now, you may think that the semantic differences don't come up very often, and in some code this may be correct. However, there really is a difference; it is not "just a style thing". There's really no correlation there.

Re: Getting Folder Size

Seebs — 2008-07-05T18:16:39

There is no non-recursive solution. There are solutions that put the recursion in another application, but that's it.