From: Pawel Szymczykowski <makenai@...>
Date: 2006-06-24T13:30:31+09:00
Subject: Carats are irreplaceable? (String#tr quandry)

Hi all,

I ran into a little problem with String#tr today. I wanted to do something like:

str = 'kame^hame^ha^'
str.tr('^','-')

But I got back an error about having a nil character class ([^]).
According to the docs: "Both strings may use the c1�c2 notation to
denote ranges of characters, and from_str may start with a ^, which
denotes all characters except those listed."

So it's trying to interpret the first argument as some sort of a
single character regex, even though it's in a string. Bummer. How then
can I replace a carat character in my string?

str.tr('\^','-') doesn't seem to work either.

Is there any way of doing this? I know that I can just use gsub
instead and go on with my life (I have actually), but this is
bothering me for some reason.

Thanks!

-Pawel