On Apr 15, 4:13 pm, "Jeffrey L. Taylor" <[email protected]> wrote:
> Interesting. Not what I expected. This is Ruby 1.8.6.
>
Inside a rexexp, \b is not a backspace (except in a character class).
it means word boundary.
Fred
> > irb
>
> irb(main):001:0> str = "abx\bc"
> => "abx\bc"
> irb(main):002:0> str.length
> => 5
> irb(main):003:0> s = str.sub(/.\b/, '')
> => "ab\bc"
> irb(main):004:0> s.length
> => 4
> irb(main):005:0> s = str.sub(/.\x08/, '')
> => "abc"
> irb(main):006:0> s.length
> => 3
> irb(main):007:0>
>
> Backspace character representation in ASCII, UTF-8, etc. is 8.
>
> Jeffrey
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