From: Phrogz <phrogz@...>
Date: 2007-12-04T06:19:59+09:00
Subject: Re: Unicode in Regex

On Dec 3, 2:07 pm, Greg Willits <li...@gregwillits.ws> wrote:
> >>  >> 'aébvHögtåwHÅFuG'.scan(/[\303\251]/u)
> >> => []
> >>  >> 'aébvHögtåwHÅFuG'.scan(/[#{"\303\251"}]/u)
> >> => ["é"]
>
> OK, one thing I'm still confused about -- when I look up é in any table,
> it's DEC is 233 which converted to OCT is 351, yet you're using 251 (and
> indeed it seems like reducing the OCTs I come up with by 100 is what
> actually works).
>
> Where is this 100 difference coming from?

http://www.fileformat.info/info/unicode/char/00e9/index.htm

The UTF-16 value is 233 (decimal), but the UTF-8 value is 0xC3 0xA9,
which is 195 169 in decimal, or 0303 0251 in octal.