From: Robert Klemme <bob.news@...>
Date: 2003-08-06T17:01:44+09:00
Subject: Re: cygwin-provided ruby 1.6.8's map/chomp can't remove dos newlines?!


"Justin Honold" <jhonold@bigfoot.com> schrieb im Newsbeitrag
news:vj1bb56v6l1gb7@corp.supernews.com...
> user@HOST ~/julia/proj
> $ cat keynames.txt
> julia
> justin
>
> user@HOST ~/julia/proj
> $ cat blah.rb
> keynames = IO.readlines("keynames.txt")
> keynames.map! { |line| line.chomp! }
> p keynames

Maybe you found a bug. My non cygwin 1.7.8 yields the expected output.

Anyway, I'd change the code in one of two ways:

# use "chomp" instead of "chomp!"
# because map! expects to reassign the elements and
# comp! returns nil if there was no change
keynames = IO.readlines("keynames.txt")
keynames.map! { |line| line.chomp }
p keynames

or (preferably)

# use "each" instead of "map!"
# because chomp! changes the instace itself
keynames = IO.readlines("keynames.txt")
keynames.each { |line| line.chomp! }
p keynames

> user@HOST ~/julia/proj
> $ ruby blah.rb
> ["julia\r", "justin\r"]
>
> how do i get rid of this?

Regards

    robert