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Re: character classes & regular expressions

Cross-posted to 2 groups.

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>>>>> Kaz Kylheku <kaz@kylheku.com> writes:
>>>>> On 2012-05-05, Ivan Shmakov <oneingray@gmail.com> wrote:
>>>>> Kaz Kylheku <kaz@kylheku.com> writes:
>>>>> On 2012-05-04, Ivan Shmakov <oneingray@gmail.com> wrote:

 > ["Followup-To:" header set to comp.unix.shell.]

	Fow what reason, I wonder?  The issue being discussed has little
	relation to the Unix Shells per se.  (And indeed, you provide an
	example in GNU flex in your own post.)

[...]

 >>>> 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.

 > Sorry, you're mistaken.  In Russia, France, Poland, Japan, you name
 > it, coders still want [A-Z] to actually denote A-Z.

	Yes.

	Still, they want for a way to denote a "single character, either
	an upper-case letter or a digit", which is precisely what
	[[:upper:][:digit:]] is for (and which is the notation that,
	IIUC, you were opposed to.)

[...]

-- 
FSF associate member #7257

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Thread

grep is screwed on Debian, Ubuntu and others ... Kaz Kylheku <kaz@kylheku.com> - 2012-05-04 01:25 +0000
  Re: grep is screwed on Debian, Ubuntu and others ... Lew Pitcher <lpitcher@teksavvy.com> - 2012-05-03 22:05 -0400
    Re: grep is screwed on Debian, Ubuntu and others ... Ed Morton <mortonspam@gmail.com> - 2012-05-03 21:32 -0500
      Re: grep is screwed on Debian, Ubuntu and others ... Kaz Kylheku <kaz@kylheku.com> - 2012-05-04 04:51 +0000
        Re: grep is screwed on Debian, Ubuntu and others ... Janis Papanagnou <janis_papanagnou@hotmail.com> - 2012-05-04 07:37 +0200
        Re: grep is screwed on Debian, Ubuntu and others ... Ed Morton <mortonspam@gmail.com> - 2012-05-04 08:33 -0500
    Re: grep is screwed on Debian, Ubuntu and others ... Kaz Kylheku <kaz@kylheku.com> - 2012-05-04 04:44 +0000
      Re: grep is screwed on Debian, Ubuntu and others ... Ed Morton <mortonspam@gmail.com> - 2012-05-04 08:47 -0500
      Re: grep is screwed on Debian, Ubuntu and others ... Ivan Shmakov <oneingray@gmail.com> - 2012-05-05 00:38 +0700
        Re: grep is screwed on Debian, Ubuntu and others ... Kaz Kylheku <kaz@kylheku.com> - 2012-05-04 17:45 +0000
          Re: grep is screwed on Debian, Ubuntu and others ... "Ed Morton" <mortonspam@gmail.com> - 2012-05-04 21:20 +0000
          character classes & regular expressions Ivan Shmakov <oneingray@gmail.com> - 2012-05-05 09:35 +0700
            Re: character classes & regular expressions Kaz Kylheku <kaz@kylheku.com> - 2012-05-05 02:42 +0000
              Re: character classes & regular expressions Ivan Shmakov <oneingray@gmail.com> - 2012-05-05 10:00 +0700
            Re: character classes & regular expressions Cydrome Leader <presence@MUNGEpanix.com> - 2012-05-06 02:31 +0000
              Re: character classes & regular expressions Ivan Shmakov <oneingray@gmail.com> - 2012-05-06 12:15 +0700
                Re: character classes & regular expressions Cydrome Leader <presence@MUNGEpanix.com> - 2012-05-06 07:47 +0000
                copyright in Russia Ivan Shmakov <oneingray@gmail.com> - 2012-05-10 19:28 +0700
      Re: grep is screwed on Debian, Ubuntu and others ... Lew Pitcher <lpitcher@teksavvy.com> - 2012-05-04 14:31 -0400
    Re: grep is screwed on Debian, Ubuntu and others ... Richard Kettlewell <rjk@greenend.org.uk> - 2012-05-04 09:12 +0100
    Re: grep is screwed on Debian, Ubuntu and others ... James Waldby <not@valid.invalid> - 2012-05-05 18:25 +0000
  Re: grep is screwed on Debian, Ubuntu and others ... Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> - 2012-05-04 12:56 +0200
    Re: grep is screwed on Debian, Ubuntu and others ... Kaz Kylheku <kaz@kylheku.com> - 2012-05-04 17:47 +0000

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