rub 1.8.1 and $=

[Patrick Gundlach]

Hello out there,

I have the following code to sort an array:

def Myclass
def sort
# $= =false => case sensitive
oldequal=$=
$= =1
@allcmds.sort!
$= =oldequal
end
end

And ruby 1.8.1 gives me a warning, that setting $= is deprecated. How
should I rather do the case insensitive sort?

Patrick

 

[Robert Klemme]

Hello out there,

I have the following code to sort an array:

def Myclass
def sort
# $= =false => case sensitive
oldequal=$=
$= =1
@allcmds.sort!
$= =oldequal
end
end

And ruby 1.8.1 gives me a warning, that setting $= is deprecated. How
should I rather do the case insensitive sort?

Patrick

class Myclass
def sort
@allcmds.sort! {|a,b| a.casecmp b}
end
end

robert

 

[Patrick Gundlach]

Hello Robert,

class Myclass
def sort
@allcmds.sort! {|a,b| a.casecmp b}
end
end

Oh, that's new in 1.8.0. I'll read the news section more carefully
next time. Thank you for pointing out casecmp.

Patrick

 

[Yukihiro Matsumoto]

Hi,

In message "Re: rub 1.8.1 and $="

|> class Myclass
|> def sort
|> @allcmds.sort! {|a,b| a.casecmp b}
|> end
|> end
|
|Oh, that's new in 1.8.0. I'll read the news section more carefully
|next time. Thank you for pointing out casecmp.

FYI, this also work

class Myclass
def sort
@allcmds.sort_by{|x| x.upcase}
end
end

Note "sort_by" do not modify @allcmds.

matz.

 

[Robert Klemme]

Hello Robert,


Oh, that's new in 1.8.0. I'll read the news section more carefully
next time. Thank you for pointing out casecmp.

With older versions you can use

@allcmds.sort! {|a,b| a.upcase <=> b.upcase}

Regards

robert