From: Robert Klemme <shortcutter@...>
Date: 2009-02-23T23:15:36+09:00
Subject: Re: Improving hexadecimal escaping performance

2009/2/23 Iñaki Baz Castillo <ibc@aliax.net>
>
> 2009/2/23 Robert Klemme <shortcutter@googlemail.com>:
> > Well, you can at least do this in 1.8
> >
> > def self::hex_escape(str)
> >   str.gsub(/[^a-zA-Z0-9_\-.]/n) {|m| sprintf("%%%02X", m[0]) }
> > end
> >
> > And this in 1.9
> >
> > def self::hex_escape(str)
> >   str.gsub(/[^a-zA-Z0-9_\-.]/n) {|m| sprintf("%%%02X", m.getbyte(0)) }
> > end
>
>
> Thanks, do you mean that "m[0]" in Ruby 1.9 has a different behaviour
> than in 1.8? maybe in 1.9 "m[0]" returns the first character (even if
> it's more than two bytes as "ñ", "€"...) while in 1.8 it returns just
> the firrst two bytes?
>
> PD: I've Ruby 1.9 (2007-12-25 revision 14709) and I don't have
> "getbyte()" method for String.

15:15:25 ~$ ruby -ve 'p "foo"[0]'
ruby 1.8.7 (2008-08-11 patchlevel 72) [i386-cygwin]
102
15:15:31 ~$ ruby19 -ve 'p "foo"[0]'
ruby 1.9.1p0 (2009-01-30 revision 21907) [i386-cygwin]
"f"
15:15:34 ~$ ruby19 -ve 'p "foo".getbyte(0)'
ruby 1.9.1p0 (2009-01-30 revision 21907) [i386-cygwin]
102
15:15:57 ~$


robert


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