String.tr bug?

Ruby
#1

Greetings,
I found strange behaviour of string.tr:

p “=+=/=”.tr("+/=", “,[email protected]”)
got “.,.-.”
expected “@,@[email protected]”

Is this bug in ruby?

#2

[email protected] wrote:

I found strange behaviour of string.tr:

p “=+=/=”.tr("+/=", “,[email protected]”)
got “.,.-.”
expected “@,@[email protected]”

Is this bug in ruby?

It’s not a bug. For tr “,[email protected]” is the same as “,-./0123456789:;<=>[email protected]”. You
have
to escape the - to use it as a literal “-”:
“=+=/=”.tr("+/=", ‘,[email protected]’) #=> “@,@[email protected]”

HTH,
Sebastian