* What exactly is a NOV header
@ 2007-07-04 2:27 Slackrat
[not found] ` <m3ved0zaqr.fsf@robolove.meer.net>
0 siblings, 1 reply; 5+ messages in thread
From: Slackrat @ 2007-07-04 2:27 UTC (permalink / raw)
To: info-gnus-english
Could someone please refer me to a definition of exactly what a NOV
header is in simple language?
All the references I can find presume that one already knows what a
NOV header is and unfortunately I do not
--
SlackRat - No 4Q to Reply
In a time of universal deceit, telling the truth becomes a revolutionary act.
--George Orwell
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: What exactly is a NOV header
[not found] ` <m3ved0zaqr.fsf@robolove.meer.net>
@ 2007-07-04 20:01 ` Anupam Sengupta
2007-07-04 20:17 ` Anupam Sengupta
[not found] ` <m3sl831w7y.fsf@robolove.meer.net>
0 siblings, 2 replies; 5+ messages in thread
From: Anupam Sengupta @ 2007-07-04 20:01 UTC (permalink / raw)
To: info-gnus-english
>>>>> "Madhu" == Madhu <enometh@meer.net> writes:
Slackrat> Slackrat <87ps38lx7i.fsf@azurservers.com> wrote:
Slackrat> Could someone please refer me to a definition of exactly what a
Slackrat> NOV header is in simple language?
NOV stands for _News Overview_ and is a header/database format for newsreaders
to process data in the NNTP articles. This format was developed by Geoff Collyer
and is now a defacto standard for NNTP newsreaders - including Gnus.
You can read more about the NOV format and headers at:
http://www.faqs.org/faqs/usenet/software/inn-faq/part1/section-15.html
Madhu> Its described in the info file for gnus. Did you already read this:
Madhu> M-x eval-expression RET (info "(gnus)Headers") RET
No. NOV is NOT described in the info node you mentioned (at least on my
install, which is gnus v5.11). Please check before posting. A *reference* is
made to NOV headers - but as the OP pointed out, no definition of *what* NOV
headers are is not provided.
--
Anupam
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: What exactly is a NOV header
2007-07-04 20:01 ` Anupam Sengupta
@ 2007-07-04 20:17 ` Anupam Sengupta
2007-07-04 23:26 ` Slackrat
[not found] ` <m3sl831w7y.fsf@robolove.meer.net>
1 sibling, 1 reply; 5+ messages in thread
From: Anupam Sengupta @ 2007-07-04 20:17 UTC (permalink / raw)
To: info-gnus-english
>>>>> "Anupam" == Anupam Sengupta <anupamsg@gmail.com> writes:
>>>>> "Madhu" == Madhu <enometh@meer.net> writes:
Slackrat> Slackrat <87ps38lx7i.fsf@azurservers.com> wrote:
Slackrat> Could someone please refer me to a definition of exactly what a
Slackrat> NOV header is in simple language?
Anupam> NOV stands for _News Overview_ and is a header/database format for
Anupam> newsreaders to process data in the NNTP articles. This format was
Anupam> developed by Geoff Collyer and is now a defacto standard for NNTP
Anupam> newsreaders - including Gnus.
Anupam> You can read more about the NOV format and headers at:
Anupam> http://www.faqs.org/faqs/usenet/software/inn-faq/part1/section-15.html
Madhu> Its described in the info file for gnus. Did you already read this:
Madhu> M-x eval-expression RET (info "(gnus)Headers") RET
Anupam> No. NOV is NOT described in the info node you mentioned (at
Anupam> least on my install, which is gnus v5.11). Please check before
Anupam> posting. A *reference* is made to NOV headers - but as the OP
Anupam> pointed out, no definition of *what* NOV headers are is not
Anupam> provided.
Another good definition is at:
http://quimby.gnus.org/notes/nov-faq.txt
>From the FAQ:
,----
| _What is the Overview/NOV database?_
|
| The Overview or News OverView (NOV) database was designed by Geoff
| Collyer. Its a more generalized database, it it contains *no*
| threading information, just the information needed to thread. The
| overview database is just a database of files, one for each group,
| containing a reference to each article, with seven or eight of the
| most popular headers. Thus, the newsreader client can get most of the
| information it needs to thread, but it does the threading the way it
| wants to. Yes, the downside is that now the threading occurs on the
| client's CPU, but that's not as expensive as it may seem, if done
| properly.
`----
--
Anupam
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: What exactly is a NOV header
2007-07-04 20:17 ` Anupam Sengupta
@ 2007-07-04 23:26 ` Slackrat
0 siblings, 0 replies; 5+ messages in thread
From: Slackrat @ 2007-07-04 23:26 UTC (permalink / raw)
To: info-gnus-english
Anupam Sengupta <anupamsg@gmail.com> writes:
>>>>>> "Anupam" == Anupam Sengupta <anupamsg@gmail.com> writes:
>
>>>>>> "Madhu" == Madhu <enometh@meer.net> writes:
> Slackrat> Slackrat <87ps38lx7i.fsf@azurservers.com> wrote:
> Slackrat> Could someone please refer me to a definition of exactly what a
> Slackrat> NOV header is in simple language?
>
> Anupam> NOV stands for _News Overview_ and is a header/database format for
> Anupam> newsreaders to process data in the NNTP articles. This format was
> Anupam> developed by Geoff Collyer and is now a defacto standard for NNTP
> Anupam> newsreaders - including Gnus.
>
> Anupam> You can read more about the NOV format and headers at:
>
> Anupam> http://www.faqs.org/faqs/usenet/software/inn-faq/part1/section-15.html
>
> Madhu> Its described in the info file for gnus. Did you already read this:
> Madhu> M-x eval-expression RET (info "(gnus)Headers") RET
>
> Anupam> No. NOV is NOT described in the info node you mentioned (at
> Anupam> least on my install, which is gnus v5.11). Please check before
> Anupam> posting. A *reference* is made to NOV headers - but as the OP
> Anupam> pointed out, no definition of *what* NOV headers are is not
> Anupam> provided.
>
> Another good definition is at:
>
> http://quimby.gnus.org/notes/nov-faq.txt
>
> From the FAQ:
>
> ,----
> | _What is the Overview/NOV database?_
> |
> | The Overview or News OverView (NOV) database was designed by Geoff
> | Collyer. Its a more generalized database, it it contains *no*
> | threading information, just the information needed to thread. The
> | overview database is just a database of files, one for each group,
> | containing a reference to each article, with seven or eight of the
> | most popular headers. Thus, the newsreader client can get most of the
> | information it needs to thread, but it does the threading the way it
> | wants to. Yes, the downside is that now the threading occurs on the
> | client's CPU, but that's not as expensive as it may seem, if done
> | properly.
> `----
>
> --
> Anupam
>
Thanks
In actual fact I had looked into the Info and searched too
--
SlackRat - No 4Q to Reply
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: What exactly is a NOV header
[not found] ` <m3sl831w7y.fsf@robolove.meer.net>
@ 2007-07-05 5:36 ` Anupam Sengupta
0 siblings, 0 replies; 5+ messages in thread
From: Anupam Sengupta @ 2007-07-05 5:36 UTC (permalink / raw)
To: info-gnus-english
>>>>> "Madhu" == Madhu <enometh@meer.net> writes:
Madhu> The OP is satisfied with your other post. So no point flaming this
Madhu> thread, however
Madhu, I am _not_ flaming here. As I pointed out below, the info node references
the NOV headers, but does not define them - and hence is not what the OP is
looking for. Therefore my response to your node link.
[...]
Madhu> What is described in the info page is not NOV but the gnus internal
Madhu> format which is closely related.
Correct. The internal format is described here. A better info node where the
actual NOV is defined to a better extent is:
(info "gnus(Terminology)")
which has a short description of NOV.
Madhu> The info page stated "Internally Gnus uses a format for storing
Madhu> article headers that corresponds to the NOV format in a mysterious
Madhu> fashion. One could almost suspect that the author looked at the NOV
Madhu> specification and just shamelessly _stole_ the entire thing, and one
Madhu> would be right."
Madhu> And I had used the description there to grok nov databases.
Madhu> The URL you provided in this post also just referred to the NOV
Madhu> headers and no definition of what NOV headers are is provided.
The URLs I had provided are FAQs on NOV and contain additional cross-references
at the end which the OP can use if he/she needs additional information.
E.g., see the URL
http://quimby.gnus.org/notes/nov-faq.txt
(provided in my second post) and grep for
"Subject: What is the format of the NOV database?"
This goes into the NOV headers in detail. To quote the FAQ response:
,----
| [this is stolen from Geoff Collyer's newsoverview(5) man page]
|
| Each newsgroup directory contains a file named `.overview',
| containing one-line summaries of articles in that group. Fields
| are separated by tabs, and any tabs or newlines in the original
| articles headers have been replaced with spaces. The fields are,
| in order: article number (file name), subject, author, date,
| message-id, references, byte count, line count, and optionally other
| headers, as arranged locally (none are supplied by the database
| maintenance software, as shipped). The line-count and references
| field may be empty. If the optional other headers are present,
| they include their header keyword and colon; if they are absent
| entirely, the tab after the line-count field may also be absent.
|
| ie:
|
| artid|subject|From|Date|Message-Id|References|bytecount|linecount|\
| Optional-Header: Stuff
|
| where | represents a tab and \ a line continuation (there are no
| continuation lines in the Overview entry, it's just so that the above
| line fits in 80 columns).
|
| Remember that header keywords in optional headers should be matched
| case insensitively.
`----
Madhu> "Please check before criticizing"?
I will not respond to this since carrying this further *will* lead to an
unnecessary continuation of this thread with little information value and high
S/N ratio. However, to clarify, the intent was to respond to *what* the OP
wanted (which has been fulfilled, as evidenced by his confirmation post), than
to *criticize* your response.
--
Anupam
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2007-07-04 2:27 What exactly is a NOV header Slackrat
[not found] ` <m3ved0zaqr.fsf@robolove.meer.net>
2007-07-04 20:01 ` Anupam Sengupta
2007-07-04 20:17 ` Anupam Sengupta
2007-07-04 23:26 ` Slackrat
[not found] ` <m3sl831w7y.fsf@robolove.meer.net>
2007-07-05 5:36 ` Anupam Sengupta
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