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Perl-Users Digest, Issue: 818 Volume: 11

daemon@ATHENA.MIT.EDU (Perl-Users Digest)
Tue Sep 4 06:09:40 2007

Date: Tue, 4 Sep 2007 03:09:03 -0700 (PDT)
From: Perl-Users Digest <Perl-Users-Request@ruby.OCE.ORST.EDU>
To: Perl-Users@ruby.OCE.ORST.EDU (Perl-Users Digest)

Perl-Users Digest           Tue, 4 Sep 2007     Volume: 11 Number: 818

Today's topics:
    Re: FAQ 4.32 How do I strip blank space from the beginn <1usa@llenroc.ude.invalid>
    Re: FAQ 4.32 How do I strip blank space from the beginn <stoupa@practisoft.cz>
    Re: FAQ 4.32 How do I strip blank space from the beginn <peter@makholm.net>
    Re: FAQ 4.32 How do I strip blank space from the beginn <uri@stemsystems.com>
    Re: FAQ 4.32 How do I strip blank space from the beginn <ben@morrow.me.uk>
    Re: FAQ 4.32 How do I strip blank space from the beginn <uri@stemsystems.com>
    Re: How to generate http error in script <stoupa@practisoft.cz>
    Re: How to generate http error in script <1usa@llenroc.ude.invalid>
    Re: How to generate http error in script <paduille.4061.mumia.w+nospam@earthlink.net>
    Re: How to generate http error in script <spamtrap@dot-app.org>
    Re: how to share variable like IPC::Shareable in win32  <abbypan@gmail.com>
        Posting Guidelines for comp.lang.perl.misc ($Revision:  tadmc@seesig.invalid
    Re: web programming in perl <spam@nospam.net>
    Re: Win32::GUI Text File not getting updated <steven.stone4@btopenworld.com>
        Digest Administrivia (Last modified: 6 Apr 01) (Perl-Users-Digest Admin)

----------------------------------------------------------------------

Date: Tue, 04 Sep 2007 05:14:50 GMT
From: "A. Sinan Unur" <1usa@llenroc.ude.invalid>
Subject: Re: FAQ 4.32 How do I strip blank space from the beginning/end of a   string?
Message-Id: <Xns99A1CA421E71asu1cornelledu@127.0.0.1>

"Petr Vileta" <stoupa@practisoft.cz> wrote in
news:fbh13i$1upj$2@ns.felk.cvut.cz: 

> Anno Siegel wrote:
>> On 2007-09-03 03:17:24 +0200, Uri Guttman <uri@stemsystems.com> said:
>>
>>> like michele said, this is too trivial to need a sub or a library.
>>
>> That too.
>>
> As the case may be ;-) When you remove blanks 50 times in 50kb source
> code then is better to use sub or library.

That is some bad code you write then.

Referring back to your example about normalizing parameter values 
obtained from a CGI form, you could do all the required normalization in 
one and only place in the code. In fact, you could trim all the CGI 
parameters passed in a few lines:


my $cgi = CGI->new
my @form_params = $cgi->param;

for my $p ( @form_params ) {
   for my $v ( $cgi->param( $p ) ) {
      next unless defined $v;
      $v =~ s/^\s+//;
      $v =~ s/\s+$//;
   }
}

How can it be that you need to do this in fifty different places? Did 
you know about lists and loops?

Sinan

-- 
A. Sinan Unur <1usa@llenroc.ude.invalid>
(remove .invalid and reverse each component for email address)
clpmisc guidelines: <URL:http://www.augustmail.com/~tadmc/clpmisc.shtml>



------------------------------

Date: Tue, 4 Sep 2007 04:32:12 +0200
From: "Petr Vileta" <stoupa@practisoft.cz>
Subject: Re: FAQ 4.32 How do I strip blank space from the beginning/end of a string?
Message-Id: <fbigit$2nj8$2@ns.felk.cvut.cz>

Tad McClellan wrote:
> Petr Vileta <stoupa@practisoft.cz> wrote:
>> Dr.Ruud wrote:
>>> Petr Vileta schreef:
>
>
>>>>     $t =~s/^\s*|\s*$//sg;
>
>>> The /s modifier should not be there.
>
>> but /s modifier I must use
>
>
> If you think so, then you do not yet understand what /s does.
>
> It makes dot match a newline.
>
> It therefore has no effect at all when your pattern does not contain
> a dot.
>
> Your pattern does not contain a dot, so the /s modifier should not be
> there.
I must say - you are right. I had read O'Reilly "Programming in Perl" but I 
not found the clean explanation of /s modifier. The book say only "/s tell 
to Perl to use multi-line string as single-line". But nowhere is explained 
what is the multi-line string. I assume that this is the string where is one 
or more "\n".
But for my practical live I assume that is better to use /s needlesly then 
omit to use /s for damned string containing "\n" :-)
-- 

Petr Vileta, Czech republic
(My server rejects all messages from Yahoo and Hotmail. Send me your mail 
from another non-spammer site please.)





------------------------------

Date: Tue, 04 Sep 2007 04:08:36 +0000
From: Peter Makholm <peter@makholm.net>
Subject: Re: FAQ 4.32 How do I strip blank space from the beginning/end of a string?
Message-Id: <87sl5v1397.fsf@hacking.dk>

Ben Morrow <ben@morrow.me.uk> writes:

>>   PM> The /s-modifier withou the /m-modifier also forces ^ and $ to mean
>>   PM> beginning and end of string no matter what $* is. But you shouldn't
>>   PM> use $* so for every sane piece of code you're right.
>> 
>> /s and /m are independent so i wouldn't use the word 'forces'. the
>> behavior of ^ and $ are not affected by /s.

Quite surprised? It took me many reading of the documentation to
understand it too, ...

> No, bizarrely enough Peter seems to be correct, in that iff $* is set /s
> affects ^ and $ as well, undoing the effects of setting $*:

 ... but it works just as documented in perlre:

   The "/s" and "/m" modifiers both override the $* setting. That is,
   no matter what $* contains, "/s" without "/m" will force "^" to
   match only at the beginning of the string and "$" to match only at
   the end (or just before a newline at the end) of the string.
   Together, as /ms, they let the "." match any character whatsoever,
   while still allowing "^" and "$" to match, respectively, just after
   and just before newlines within the string.

That is, concerning '$' and '^', the /s modifier works as if $* is
false, the /m modifier works as if $* is true, and both modifiers
works as if $* is true.

But again, nobody should change $*, so the simple explanations will do
for all modern code. 

//Makholm


------------------------------

Date: Mon, 03 Sep 2007 19:17:19 GMT
From: Uri Guttman <uri@stemsystems.com>
Subject: Re: FAQ 4.32 How do I strip blank space from the beginning/end of a string?
Message-Id: <x73axvh83k.fsf@mail.sysarch.com>

>>>>> "PM" == Peter Makholm <peter@makholm.net> writes:

  PM> Ben Morrow <ben@morrow.me.uk> writes:
  >> Did you try it without /s? The *only* thing /s affects is the behaviour
  >> of '.'. You have no '.'s in your regex, so /s makes no difference.

  PM> The /s-modifier withou the /m-modifier also forces ^ and $ to mean
  PM> beginning and end of string no matter what $* is. But you shouldn't
  PM> use $* so for every sane piece of code you're right.

/s and /m are independent so i wouldn't use the word 'forces'. the
behavior of ^ and $ are not affected by /s.

uri

-- 
Uri Guttman  ------  uri@stemsystems.com  -------- http://www.stemsystems.com
--Perl Consulting, Stem Development, Systems Architecture, Design and Coding-
Search or Offer Perl Jobs  ----------------------------  http://jobs.perl.org


------------------------------

Date: Mon, 3 Sep 2007 22:02:19 +0100
From: Ben Morrow <ben@morrow.me.uk>
Subject: Re: FAQ 4.32 How do I strip blank space from the beginning/end of a string?
Message-Id: <rb9uq4-ug3.ln1@osiris.mauzo.dyndns.org>


Quoth Uri Guttman <uri@stemsystems.com>:
> >>>>> "PM" == Peter Makholm <peter@makholm.net> writes:
> 
>   PM> Ben Morrow <ben@morrow.me.uk> writes:
>   >> Did you try it without /s? The *only* thing /s affects is the behaviour
>   >> of '.'. You have no '.'s in your regex, so /s makes no difference.
> 
>   PM> The /s-modifier withou the /m-modifier also forces ^ and $ to mean
>   PM> beginning and end of string no matter what $* is. But you shouldn't
>   PM> use $* so for every sane piece of code you're right.
> 
> /s and /m are independent so i wouldn't use the word 'forces'. the
> behavior of ^ and $ are not affected by /s.

No, bizarrely enough Peter seems to be correct, in that iff $* is set /s
affects ^ and $ as well, undoing the effects of setting $*:

$ perl -le'$* = 1; $_ = "\nfoo"; print /^foo/; print /^foo/s;'
1

$ 

However, this is clearly a silly edge case, as the whole point of /sm is
to remove the need to ever set $*.

Ben



------------------------------

Date: Mon, 03 Sep 2007 22:24:10 GMT
From: Uri Guttman <uri@stemsystems.com>
Subject: Re: FAQ 4.32 How do I strip blank space from the beginning/end of a string?
Message-Id: <x7lkbnfkvr.fsf@mail.sysarch.com>

>>>>> "BM" == Ben Morrow <ben@morrow.me.uk> writes:

  BM> Quoth Uri Guttman <uri@stemsystems.com>:
  >> >>>>> "PM" == Peter Makholm <peter@makholm.net> writes:
  >> 
  PM> Ben Morrow <ben@morrow.me.uk> writes:
  >> >> Did you try it without /s? The *only* thing /s affects is the behaviour
  >> >> of '.'. You have no '.'s in your regex, so /s makes no difference.
  >> 
  PM> The /s-modifier withou the /m-modifier also forces ^ and $ to mean
  PM> beginning and end of string no matter what $* is. But you shouldn't
  PM> use $* so for every sane piece of code you're right.
  >> 
  >> /s and /m are independent so i wouldn't use the word 'forces'. the
  >> behavior of ^ and $ are not affected by /s.

  BM> No, bizarrely enough Peter seems to be correct, in that iff $* is set /s
  BM> affects ^ and $ as well, undoing the effects of setting $*:

but that isn't what he said. he said /s without /m FORCES  ^ and $ no
matter the setting of $*. so i said it doesn't as /s has no effect on ^
and $ and disregarded $* as it is deprecated and was a very silly
variable that larry deeply regrets creating. :)

  BM> $ perl -le'$* = 1; $_ = "\nfoo"; print /^foo/; print /^foo/s;'
  BM> 1

  BM> $ 

  BM> However, this is clearly a silly edge case, as the whole point of /sm is
  BM> to remove the need to ever set $*.

from perlvar:

       $*      Set to a non-zero integer value to do multi-line matching
               within a string, 0 (or undefined) to tell Perl that it can
               assume that strings contain a single line, for the purpose of
               optimizing pattern matches.  Pattern matches on strings con¡¾
               taining multiple newlines can produce confusing results when $*
               is 0 or undefined. Default is undefined.  (Mnemonic: * matches
               multiple things.) This variable influences the interpretation
               of only "^" and "$". A literal newline can be searched for even
               when "$* == 0".

               Use of $* is deprecated in modern Perl, supplanted by the "/s"
               and "/m" modifiers on pattern matching.

               Assigning a non-numerical value to $* triggers a warning (and
               makes $* act if "$* == 0"), while assigning a numerical value
               to $* makes that an implicit "int" is applied on the value.

and the docs there are very muddy. they don't define 'multiline
matching' and they claim confusing results when $* is disabled. i don't
find the results confusing :)

uri

-- 
Uri Guttman  ------  uri@stemsystems.com  -------- http://www.stemsystems.com
--Perl Consulting, Stem Development, Systems Architecture, Design and Coding-
Search or Offer Perl Jobs  ----------------------------  http://jobs.perl.org


------------------------------

Date: Tue, 4 Sep 2007 04:13:16 +0200
From: "Petr Vileta" <stoupa@practisoft.cz>
Subject: Re: How to generate http error in script
Message-Id: <fbigit$2nj8$1@ns.felk.cvut.cz>

Peter J. Holzer wrote:
> On 2007-09-03 03:48, Petr Vileta <stoupa@practisoft.cz> wrote:
>> Sherm Pendley wrote:
>>> "Petr Vileta" <stoupa@practisoft.cz> writes:
>> Because I do not use Apache authentication but by parameters on GET
>> method only. If all parameters are passed right then script return
>> XML file, in other case must return http 401 error.
>
> In this case 401 is probably wrong. 401 is intended to be used with
> the WWW-Authenticate and Authorization headers:
>
Yes, right. But what other http error you suggest? I not want to return 
Status: 200 and human readable error message. I aspire to deter robots from 
trying to download ;-)

Here are errors what I know:
 400 Bad Request
 401 Unauthorized
 402 Payment Required
 403 Forbidden
 404 Not Found
 405 Method Not Allowed
 406 Not Acceptable
 407 Proxy Authentication Required
 408 Request Timeout
 409 Conflict
 410 Gone
 411 Length Required
 412 Precondition Failed
 413 Request Entity Too Large
 414 Request URL Too Long
 415 Unsupported Media Type
 416 Requested Range Not Satisfiable
 417 Expectation Failed

-- 

Petr Vileta, Czech republic
(My server rejects all messages from Yahoo and Hotmail. Send me your mail 
from another non-spammer site please.)




------------------------------

Date: Tue, 04 Sep 2007 04:59:43 GMT
From: "A. Sinan Unur" <1usa@llenroc.ude.invalid>
Subject: Re: How to generate http error in script
Message-Id: <Xns99A1A1467908asu1cornelledu@127.0.0.1>

"Petr Vileta" <stoupa@practisoft.cz> wrote in
news:fbigit$2nj8$1@ns.felk.cvut.cz: 

> Peter J. Holzer wrote:
>> On 2007-09-03 03:48, Petr Vileta <stoupa@practisoft.cz> wrote:
>>> Sherm Pendley wrote:
>>>> "Petr Vileta" <stoupa@practisoft.cz> writes:
>>> Because I do not use Apache authentication but by parameters on GET
>>> method only. If all parameters are passed right then script return
>>> XML file, in other case must return http 401 error.
>>
>> In this case 401 is probably wrong. 401 is intended to be used with
>> the WWW-Authenticate and Authorization headers:
>>
> Yes, right. But what other http error you suggest? I not want to
> return Status: 200 and human readable error message.

See http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html

10.4.2 401 Unauthorized

The request requires user authentication. The response MUST include a 
WWW-Authenticate header field (section 14.47) containing a challenge 
applicable to the requested resource. The client MAY repeat the request 
with a suitable Authorization header field (section 14.8). If the 
request already included Authorization credentials, then the 401 
response indicates that authorization has been refused for those 
credentials. If the 401 response contains the same challenge as the 
prior response, and the user agent has already attempted authentication 
at least once, then the user SHOULD be presented the entity that was 
given in the response, since that entity might include relevant 
diagnostic information. HTTP access authentication is explained in "HTTP 
Authentication: Basic and Digest Access Authentication" [43]. 

403 is a perfectly acceptable code to return given your requirements:


10.4.4 403 Forbidden

The server understood the request, but is refusing to fulfill it. 
Authorization will not help and the request SHOULD NOT be repeated. If 
the request method was not HEAD and the server wishes to make public why 
the request has not been fulfilled, it SHOULD describe the reason for 
the refusal in the entity. If the server does not wish to make this 
information available to the client, the status code 404 (Not Found) can 
be used instead. 

-- 
A. Sinan Unur <1usa@llenroc.ude.invalid>
(remove .invalid and reverse each component for email address)
clpmisc guidelines: <URL:http://www.augustmail.com/~tadmc/clpmisc.shtml>



------------------------------

Date: Mon, 03 Sep 2007 23:34:57 -0500
From: "Mumia W." <paduille.4061.mumia.w+nospam@earthlink.net>
Subject: Re: How to generate http error in script
Message-Id: <13dpqh2pl9a2n12@corp.supernews.com>

On 09/03/2007 09:13 PM, Petr Vileta wrote:
> Peter J. Holzer wrote:
>> On 2007-09-03 03:48, Petr Vileta <stoupa@practisoft.cz> wrote:
>>> Sherm Pendley wrote:
>>
>> In this case 401 is probably wrong. 401 is intended to be used with
>> the WWW-Authenticate and Authorization headers:
>>
> Yes, right. But what other http error you suggest?
> [...]
> 403 Forbidden
> [...]

I would use that one.


------------------------------

Date: Tue, 04 Sep 2007 01:59:32 -0400
From: Sherm Pendley <spamtrap@dot-app.org>
Subject: Re: How to generate http error in script
Message-Id: <m27in72cor.fsf@dot-app.org>

"Petr Vileta" <stoupa@practisoft.cz> writes:

> Peter J. Holzer wrote:
>> On 2007-09-03 03:48, Petr Vileta <stoupa@practisoft.cz> wrote:
>>> Because I do not use Apache authentication but by parameters on GET
>>> method only. If all parameters are passed right then script return
>>> XML file, in other case must return http 401 error.
>>
>> In this case 401 is probably wrong. 401 is intended to be used with
>> the WWW-Authenticate and Authorization headers:

I agree with Peter.

In the context of HTTP, user and password form elements are not special
in any way; they're just form data. That kind of login and HTTP auth are
basically oil and water - they don't mix well. If you use a 401 response,
you should pair it with standard HTTP auth. Conversely, if you use an HTML
login form, you shouldn't use a 401 when it fails.

> Yes, right. But what other http error you suggest?

I think "403 Forbidden" would be appropriate. The W3C's description of it
says "authorization will not help", but that simply means that the browser
shouldn't bother prompting for standard HTTP auth info, like it would for
a 401 response.

> I not want to
> return Status: 200 and human readable error message. I aspire to deter
> robots from trying to download ;-)

Note that your script can include content with a 403 response itself, or
you can use Apache's ErrorDocument config directive to specify a document
to return with 403 responses.

sherm--

-- 
Web Hosting by West Virginians, for West Virginians: http://wv-www.net
Cocoa programming in Perl: http://camelbones.sourceforge.net


------------------------------

Date: Tue, 04 Sep 2007 01:32:06 -0000
From:  lsyx <abbypan@gmail.com>
Subject: Re: how to share variable like IPC::Shareable in win32 ?
Message-Id: <1188869526.246623.198190@r34g2000hsd.googlegroups.com>

On 9 3 ,   9 27 , Ben Morrow <b...@morrow.me.uk> wrote:
> Quoth lsyx <abby...@gmail.com>:
>
> > I use IPC::Shareable to share Perl variables between processes  in
> > linux.
>
> > But it can't work in windows.
>
> If you want an interface similar to IPC::Shareable, where random
> processes created independantly can locate the shared memory given an
> appropriate ID, you may have some luck with Win32::MMF.
>
> However, if your processes are all forked perl processes (that is, they
> are all children of one parent), you can share variables by switching
> from fork to threads and threads::shared. Fork is emulated using threads
> under Win32 anyway.
>
> Ben

thanks so much! The Win32::MMF is what i want.Maybe I can try
threads::shared later. :)



------------------------------

Date: Tue, 04 Sep 2007 07:10:13 GMT
From: tadmc@seesig.invalid
Subject: Posting Guidelines for comp.lang.perl.misc ($Revision: 1.8 $)
Message-Id: <px7Di.1560$Sd4.838@nlpi061.nbdc.sbc.com>

Outline
   Before posting to comp.lang.perl.misc
      Must
       - Check the Perl Frequently Asked Questions (FAQ)
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      Really Really Should
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       - Question should be about Perl, not about the application area
      How to participate (post) in the clpmisc community
       - Carefully choose the contents of your Subject header
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       - Provide enough information
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      Social faux pas to avoid
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-----------------------------------------------------------------

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        You have 40 precious characters of Subject to win out and be one of
        the posts that gets read. Don't waste them. Take care while
        composing them, they are the key that opens the door to getting an
        answer.

        Spend them indicating what aspect of Perl others will find if they
        should decide to read your article.

        Do not spend them indicating "experience level" (guru, newbie...).

        Do not spend them pleading (please read, urgent, help!...).

        Do not spend them on non-Subjects (Perl question, one-word
        Subject...)

        For more information on choosing a Subject see "Choosing Good
        Subject Lines":

         http://www.cpan.org/authors/id/D/DM/DMR/subjects.post

        Part of the beauty of newsgroup dynamics, is that you can contribute
        to the community with your very first post! If your choice of
        Subject leads a fellow Perler to find the thread you are starting,
        then even asking a question helps us all.

    Use an effective followup style
        When composing a followup, quote only enough text to establish the
        context for the comments that you will add. Always indicate who
        wrote the quoted material. Never quote an entire article. Never
        quote a .signature (unless that is what you are commenting on).

        Intersperse your comments *following* each section of quoted text to
        which they relate. Unappreciated followup styles are referred to as
        "top-posting", "Jeopardy" (because the answer comes before the
        question), or "TOFU" (Text Over, Fullquote Under).

        Reversing the chronology of the dialog makes it much harder to
        understand (some folks won't even read it if written in that style).
        For more information on quoting style, see:

         http://web.presby.edu/~nnqadmin/nnq/nquote.html

    Speak Perl rather than English, when possible
        Perl is much more precise than natural language. Saying it in Perl
        instead will avoid misunderstanding your question or problem.

        Do not say: I have variable with "foo\tbar" in it.

        Instead say: I have $var = "foo\tbar", or I have $var = 'foo\tbar',
        or I have $var = <DATA> (and show the data line).

    Ask perl to help you
        You can ask perl itself to help you find common programming mistakes
        by doing two things: enable warnings (perldoc warnings) and enable
        "strict"ures (perldoc strict).

        You should not bother the hundreds/thousands of readers of the
        newsgroup without first seeing if a machine can help you find your
        problem. It is demeaning to be asked to do the work of a machine. It
        will annoy the readers of your article.

        You can look up any of the messages that perl might issue to find
        out what the message means and how to resolve the potential mistake
        (perldoc perldiag). If you would like perl to look them up for you,
        you can put "use diagnostics;" near the top of your program.

    Do not re-type Perl code
        Use copy/paste or your editor's "import" function rather than
        attempting to type in your code. If you make a typo you will get
        followups about your typos instead of about the question you are
        trying to get answered.

    Provide enough information
        If you do the things in this item, you will have an Extremely Good
        chance of getting people to try and help you with your problem!
        These features are a really big bonus toward your question winning
        out over all of the other posts that you are competing with.

        First make a short (less than 20-30 lines) and *complete* program
        that illustrates the problem you are having. People should be able
        to run your program by copy/pasting the code from your article. (You
        will find that doing this step very often reveals your problem
        directly. Leading to an answer much more quickly and reliably than
        posting to Usenet.)

        Describe *precisely* the input to your program. Also provide example
        input data for your program. If you need to show file input, use the
        __DATA__ token (perldata.pod) to provide the file contents inside of
        your Perl program.

        Show the output (including the verbatim text of any messages) of
        your program.

        Describe how you want the output to be different from what you are
        getting.

        If you have no idea at all of how to code up your situation, be sure
        to at least describe the 2 things that you *do* know: input and
        desired output.

    Do not provide too much information
        Do not just post your entire program for debugging. Most especially
        do not post someone *else's* entire program.

    Do not post binaries, HTML, or MIME
        clpmisc is a text only newsgroup. If you have images or binaries
        that explain your question, put them in a publically accessible
        place (like a Web server) and provide a pointer to that location. If
        you include code, cut and paste it directly in the message body.
        Don't attach anything to the message. Don't post vcards or HTML.
        Many people (and even some Usenet servers) will automatically filter
        out such messages. Many people will not be able to easily read your
        post. Plain text is something everyone can read.

  Social faux pas to avoid
    The first two below are symptoms of lots of FAQ asking here in clpmisc.
    It happens so often that folks will assume that it is happening yet
    again. If you have looked but not found, or found but didn't understand
    the docs, say so in your article.

    Asking a Frequently Asked Question
        It should be understood that you may have missed the applicable FAQ
        when you checked, which is not a big deal. But if the Frequently
        Asked Question is worded similar to your question, folks will assume
        that you did not look at all. Don't become indignant at pointers to
        the FAQ, particularly if it solves your problem.

    Asking a question easily answered by a cursory doc search
        If folks think you have not even tried the obvious step of reading
        the docs applicable to your problem, they are likely to become
        annoyed.

        If you are flamed for not checking when you *did* check, then just
        shrug it off (and take the answer that you got).

    Asking for emailed answers
        Emailed answers benefit one person. Posted answers benefit the
        entire community. If folks can take the time to answer your
        question, then you can take the time to go get the answer in the
        same place where you asked the question.

        It is OK to ask for a *copy* of the answer to be emailed, but many
        will ignore such requests anyway. If you munge your address, you
        should never expect (or ask) to get email in response to a Usenet
        post.

        Ask the question here, get the answer here (maybe).

    Beware of saying "doesn't work"
        This is a "red flag" phrase. If you find yourself writing that,
        pause and see if you can't describe what is not working without
        saying "doesn't work". That is, describe how it is not what you
        want.

    Sending a "stealth" Cc copy
        A "stealth Cc" is when you both email and post a reply without
        indicating *in the body* that you are doing so.

  Be extra cautious when you get upset
    Count to ten before composing a followup when you are upset
        This is recommended in all Usenet newsgroups. Here in clpmisc, most
        flaming sub-threads are not about any feature of Perl at all! They
        are most often for what was seen as a breach of netiquette. If you
        have lurked for a bit, then you will know what is expected and won't
        make such posts in the first place.

        But if you get upset, wait a while before writing your followup. I
        recommend waiting at least 30 minutes.

    Count to ten after composing and before posting when you are upset
        After you have written your followup, wait *another* 30 minutes
        before committing yourself by posting it. You cannot take it back
        once it has been said.

AUTHOR
    Tad McClellan and many others on the comp.lang.perl.misc newsgroup.

-- 
Tad McClellan
email: perl -le "print scalar reverse qq/moc.noitatibaher\100cmdat/"


------------------------------

Date: Mon, 03 Sep 2007 22:25:29 +0200
From: Tom Forsmo <spam@nospam.net>
Subject: Re: web programming in perl
Message-Id: <46dc6de9$1@news.broadpark.no>

  wrote:
> Tom Forsmo wrote:
>> The reason I asked was that the traffic on this group is not very
>> high, when you remove the perlfaq automated posts, so I assumed there
>> were other more high traffic forums.
> 
> Excuse me? Just for August I got over 1800 postings even _after_ filtering 
> some very verbose trolls. If an average of 60 postings a day isn't enough 
> traffic for you then I don't know what.

Maybe its my ISP's news server then, my view shows me about 5-10 posts 
per day in this group, thats including automated posts.

tom


------------------------------

Date: Mon, 03 Sep 2007 21:17:34 -0700
From:  steve <steven.stone4@btopenworld.com>
Subject: Re: Win32::GUI Text File not getting updated
Message-Id: <1188879454.053520.13970@22g2000hsm.googlegroups.com>

On Sep 2, 10:41 am, Robert May <remay...@googlemail.com> wrote:
> On Sep 2, 7:24 am, steve <steven.sto...@btopenworld.com> wrote:
>
> > I created a very simple receiver socket script and a sender script
> > which work in as much that I can send different 'messages' between
> > them :-)
>
> > Then I tried the same using a Win32::GUI setup, simple window with a
> > textfield where the messages should appear as I send them, but nothing
> > happens until I exit the window (with an Exit Button) at which point
> > all the messages appear in the textfield.
>
> > The applications is obviously stuck in some loop somewhere that is
> > preventing the update of the textfield, but I cant figure it out :-(
>
> [snip code]
>
> >         Win32::GUI::Dialog();
>
> Try removing that line from your receiver - it won't return until you
> close your window.  Win32::GUI::DoEvents() is the 'non-blocking'
> equivalent.
>
> Regards,
> Rob.

Many Thanks Rob,
works an treat now

regards
Steve



------------------------------

Date: 6 Apr 2001 21:33:47 GMT (Last modified)
From: Perl-Users-Request@ruby.oce.orst.edu (Perl-Users-Digest Admin) 
Subject: Digest Administrivia (Last modified: 6 Apr 01)
Message-Id: <null>


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