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From: Cydrome Leader <presence@MUNGEpanix.com>
Newsgroups: comp.text,comp.unix.shell
Subject: Re: character classes & regular expressions
Date: Sun, 6 May 2012 02:31:05 +0000 (UTC)
Organization: PANIX Public Access Internet and UNIX, NYC
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References: <20120503180629.531@kylheku.com> <7QGor.22191$em4.6868@newsfe21.iad> <20120503211141.506@kylheku.com> <86r4uz3kzo.fsf@gray.siamics.net> <20120504103639.939@kylheku.com> <86mx5n2w3m.fsf_-_@gray.siamics.net>
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Xref: csiph.com comp.text:26 comp.unix.shell:4922

In comp.unix.shell Ivan Shmakov <oneingray@gmail.com> wrote:
>>>>>> Kaz Kylheku <kaz@kylheku.com> writes:
>>>>>> On 2012-05-04, Ivan Shmakov <oneingray@gmail.com> wrote:
>>>>>> Kaz Kylheku <kaz@kylheku.com> writes:
> 
>        [Cross-posting to news:comp.text, for the subject being
>        discussed is hardly specific to Unix shells; really, this time.]
> 
> [...]
> 
> >>> In my defense, I've never used this committee-designed dog of a
> >>> syntax until today, which was only because I was groping for a
> >>> quick workaround, and likely never will again.
> 
> >>> (I also refuse to implement it in my regex engine, though I have
> >>> caved in to Perl's \w, \d, \s, \W, \D and \S, which is probably as
> >>> far as I will go.)
> 
> >> How do you specify a "single character, either an upper-case letter
> >> or a digit" within such a regular expression, then?
> 
> > [A-Z0-9]
> > [A-Z\d]
> 
>        It happens that the native languages of the most people of the
>        world either use extensions to the Latin script (beyond those in
>        ASCII, such as J or W), or use a script not derived from Latin
>        at all.  (Greek-based scripts are not uncommon, for instance;
>        FWIW, the Latin script is based on the Greek one itself.)
> 
>        Good luck selling your product to anyone speaking French, Greek,
>        Polish or Russian.

like greeks have money to buy software or a russian has ever made a legit 
software purchase.