From: Heesob Park <phasis@...>
Date: 2013-02-05T23:21:08+09:00
Subject: Re: old syntax? what's going on here

2013/2/5 tamouse mailing lists <tamouse.lists@gmail.com>
>
> I have this in a _spec.rb file: (a gem I inherited at work)
>
> Open3.expects(:popen3).with do |command|
>       case part_of_command
>       when Regexp: command =~ part_of_command
>       when String: command.include?(part_of_command)
>       else raise "Can't match that"
>       end
>     end
>
> which ruby is complaining about:
>
> spec/ruby_gpg_spec.rb:7: syntax error, unexpected ':', expecting
> keyword_then or ',' or ';' or '\n'
>       when Regexp: command =~ part_of_command
>                   ^
> spec/ruby_gpg_spec.rb:8: syntax error, unexpected keyword_when,
> expecting keyword_end
>       when String: command.include?(part_of_command)
>           ^
> spec/ruby_gpg_spec.rb:9: syntax error, unexpected keyword_else,
> expecting keyword_end
>       else raise "Can't match that"
>           ^
> spec/ruby_gpg_spec.rb:241: syntax error, unexpected keyword_end, expecting
> $end
>
> I'm completely unfamiliar with what is supposed to be happening above,
> but I rather assume that Regexp: and String: have something to do with
> the Open3.expects bit.
>
> I'm a bit pressed for time right now, can anyone give me some fast
> pointers? Already delving into Open3...
>
The above case syntax is legitimate in ruby 1.8 but not in 1.9.
Refer to
http://blog.grayproductions.net/articles/getting_code_ready_for_ruby_19


Regards,

Park Heesob