What’s the difference between Process.fork and the new Process.spawn methods in Ruby 1.9.2 Process.fork allows you to run ruby code in another process. Process.spawn allows you to run another program in another process. Basically Process.spawn is like using Process.fork and then calling exec in the forked process, except that it gives you more options. and … Read more
Instead of adding # coding: UTF-8 try to add # encoding: UTF-8 on the first line of the file. It worked for me. I found the information here : http://groups.google.com/group/sinatrarb/browse_thread/thread/f92529bf0cf62015
I think you can either use -E utf-8 command line argument to ruby, or set your RUBYOPT environment variable to “-E utf-8”
Here’s an example that outputs a file in the UTF-16LE encoding: open(“data.txt”, “w:UTF-16LE”) Ruby looks at the encoding of the string you are writing, and transcodes as necessary. Here’s a very detailed blog post describing mechanics with excellent examples (see the section called “The Default External and Internal Encodings”).
No, there are not “exactly 3 ways” to specify the ‘magic comment’ — there are an infinite number of them. Any comment on the first line that contains coding: will work, according to JEG2: … the preferred way to set your source Encoding … it’s called a magic comment. If the first line of your … Read more
Ruby doesn’t have functions. It only has methods (which aren’t first-class) and Procs which are first-class, but are not associated with any object. So, this is a method: def foo(bar) puts bar end foo(‘Hello’) # Hello Oh, and, yes, this is a real method, not a top-level function or procedure or something. Methods defined at … Read more
BasicObject was introduced in Ruby 1.9 and it is a parent of Object (thus BasicObject is the parent class of all classes in Ruby). BasicObject has almost no methods on itself: ::new #! #!= #== #__id__ #__send__ #equal? #instance_eval #instance_exec BasicObject can be used for creating object hierarchies independent of Ruby’s object hierarchy, proxy objects … Read more
I’m not really sure, but maybe this can help: update-alternatives –config ruby … and here’s the non-interactive, scriptable, way: update-alternatives –set ruby /usr/bin/ruby1.9.1 You may find out about available alternatives and respective /usr/bin/… paths by doing: update-alternatives –query ruby
There are some legitimate symbols that cannot be used with the new syntax. I cannot find a reference, but it appears that a symbol name matching /^[a-zA-Z_][a-zA-Z_0-9]*[!?]?$/ is allowed with the new syntax. The last character may be the special character “!” or “?”. For any symbol that does not meet these restrictions, you have … Read more
Here is the way I fix the “invalid date format in specification” error: 1.) Go to the specifications folder located at: /usr/local/lib/ruby/gems/1.8/specifications/ 2.) Find the spec that is causing the problem. 3.) Change s.date = %q{2011-05-21 00:00:00.000000000Z} to s.date = %q{2011-05-21} That’s a WIN for me! Good Luck