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Re: bug in is_numeric [message #181491 is a reply to message #181490] Sun, 19 May 2013 02:41 Go to previous messageGo to previous message
Jerry Stuckle is currently offline  Jerry Stuckle
Messages: 2598
Registered: September 2010
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On 5/18/2013 10:22 PM, Denis McMahon wrote:
> On Sat, 18 May 2013 19:21:54 -0400, Jerry Stuckle wrote:
>
>> On 5/18/2013 5:58 PM, Denis McMahon wrote:
>>> On Sat, 18 May 2013 14:32:53 -0400, Jerry Stuckle wrote:
>>>
>>>> But no matter what the original name was - TODAY'S use is what counts.
>>>> It is a threaded discussion group, and threads exist for a reason.
>>>
>>> Technically threading is a client feature by virtue of how client
>>> software uses and displays the references and in-reply-to headers on
>>> the individual messages.
>>>
>>> As neither of those headers is mandatory in newsgroup messages, the
>>> newsgroup as such, technically, is not in and of itself threaded,
>>> rather it is a group in which threaded discussions may be posted.
>
>> Nope. RFC1036 defines the "References" header used to refer to a
>> previous message. It is a part of the Use net protocol.
>
> As I said, the header is not mandatory - I'm not discussing whether it's
> part of the protocol, it clearly is, but it is not mandatory for every
> post to have a references header[1].
>
> Nor is it mandatory for any client to pay any attention to such a header
> if present[2].
>
> [1] A "new post" (as opposed to a "follow-up" or "reply") does not
> usually have a references header, as it does not usually reference a
> prior message.
>
> [2] Although IMO it would be a pretty crap news client that didn't.
>

I didn't claim the header was mandatory. But it is not just a "client
feature". It is a defined part of the Usenet protocol - and has been
for decades.


--
==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================
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