i’m trying out my first ruby debugging session from a DOS prompt, but am
running into a weird problem as shown below. anyone knows what’s
happening?
i can’t list my program (ptest.rb) from inside the debug session; also,
i don’t
know why i’m getting the rubygem thingy since my program consists of
plain ruby code:
C:\rubyquizzes>ruby -r debug ptest.rb
Debug.rb
Emacs support available.
c:/ruby/lib/ruby/site_ruby/1.8/ubygems.rb:4:require ‘rubygems’
(rdb:1) list 1-7
[1, 7] in c:/ruby/lib/ruby/site_ruby/1.8/ubygems.rb
1 # This file allows for the running of rubygems with a nice
2 # command line look-and-feel: ruby -rubygems foo.rb
3
=> 4 require ‘rubygems’
(rdb:1) list 1-12
[1, 12] in c:/ruby/lib/ruby/site_ruby/1.8/ubygems.rb
1 # This file allows for the running of rubygems with a nice
2 # command line look-and-feel: ruby -rubygems foo.rb
3
=> 4 require ‘rubygems’
(rdb:1) c
With braces, result = block given to ‘two’ returns three
With do/end, result = block given to ‘one’ returns three
----- ptest.rb -----
def one(arg)
if block_given?
“block given to ‘one’ returns #{yield}”
else
arg
end
end
def two
if block_given?
“block given to ‘two’ returns #{yield}”
end
end
result1 = one two {
“three”
}
result2 = one two do
“three”
end
puts “With braces, result = #{result1}”
puts “With do/end, result = #{result2}”