[32284] in Perl-Users-Digest
Perl-Users Digest, Issue: 3551 Volume: 11
daemon@ATHENA.MIT.EDU (Perl-Users Digest)
Fri Nov 25 03:09:26 2011
Date: Fri, 25 Nov 2011 00:09:08 -0800 (PST)
From: Perl-Users Digest <Perl-Users-Request@ruby.OCE.ORST.EDU>
To: Perl-Users@ruby.OCE.ORST.EDU (Perl-Users Digest)
Perl-Users Digest Fri, 25 Nov 2011 Volume: 11 Number: 3551
Today's topics:
access a 2D array column by column <ela@yantai.org>
Re: access a 2D array column by column <jurgenex@hotmail.com>
Re: access a 2D array column by column <ela@yantai.org>
Re: access a 2D array column by column <jurgenex@hotmail.com>
Re: access a 2D array column by column <tadmc@seesig.invalid>
Convert Wiki to HTML <damjensen@gmail.com>
Re: Convert Wiki to HTML <justin.1104@purestblue.com>
Re: Convert Wiki to HTML <sssdevelop@gmail.com>
Re: Convert Wiki to HTML <damjensen@gmail.com>
Re: Convert Wiki to HTML <damjensen@gmail.com>
Re: Convert Wiki to HTML <damjensen@gmail.com>
Re: Convert Wiki to HTML <hhr-m@web.de>
Re: Generating an anonymous reference to an OO method <agquarx@gmail.com>
Posting Guidelines for comp.lang.perl.misc ($Revision: tadmc@seesig.invalid
Digest Administrivia (Last modified: 6 Apr 01) (Perl-Users-Digest Admin)
----------------------------------------------------------------------
Date: Fri, 25 Nov 2011 11:27:24 +0800
From: "ela" <ela@yantai.org>
Subject: access a 2D array column by column
Message-Id: <jan1uu$buc$1@ijustice.itsc.cuhk.edu.hk>
To access a spreadsheet file column by column, I use the 2D array @AoA to
store the contents. However, I don't know how to state in the for loop
because common perl tutorials assume access row by row. What should I
replace $#AoA with?
use warnings;
my ($rankfile) = @ARGV;
open (FP,$rankfile);
my @cells = (); my @AoA = ();
while ($line=<FP>) { chomp $line; @cells = split /\t/, $line;
push @AoA, [ @cells ];
}
%trials = ();
%sTrials = ();
for $i ( 0 .. $#AoA ) {
for $ik ( 0 .. $#{ $AoA[$i] } ) {
$trials{$ik} = $AoA[$i][$ik];
print $ik, "\t", $trials{$ik} , "\t", $AoA[$i][$ik]; <STDIN>;
}
}
------------------------------
Date: Thu, 24 Nov 2011 20:36:57 -0800
From: Jürgen Exner <jurgenex@hotmail.com>
Subject: Re: access a 2D array column by column
Message-Id: <lk6uc7lcbav40d0th76roqr2h4rh1vl1cj@4ax.com>
"ela" <ela@yantai.org> wrote:
>To access a spreadsheet file column by column, I use the 2D array @AoA to
>store the contents. However, I don't know how to state in the for loop
>because common perl tutorials assume access row by row. What should I
>replace $#AoA with?
Do you know what $#AoA is? Why do you think that picking some other
number would change the logic of your algorithm from columns of rows to
rows of columns?
>use warnings;
>
>my ($rankfile) = @ARGV;
>open (FP,$rankfile);
>my @cells = (); my @AoA = ();
>while ($line=<FP>) { chomp $line; @cells = split /\t/, $line;
> push @AoA, [ @cells ];
>}
>
>%trials = ();
>%sTrials = ();
>for $i ( 0 .. $#AoA ) {
> for $ik ( 0 .. $#{ $AoA[$i] } ) {
> $trials{$ik} = $AoA[$i][$ik];
> print $ik, "\t", $trials{$ik} , "\t", $AoA[$i][$ik]; <STDIN>;
> }
>}
You need to change your algorithm to have the outer loop iterate over
the columns and the inner loop over the rows.
jue
------------------------------
Date: Fri, 25 Nov 2011 12:48:37 +0800
From: "ela" <ela@yantai.org>
Subject: Re: access a 2D array column by column
Message-Id: <jan6n4$djh$1@ijustice.itsc.cuhk.edu.hk>
"Jürgen Exner" <jurgenex@hotmail.com> wrote in message
news:lk6uc7lcbav40d0th76roqr2h4rh1vl1cj@4ax.com...
> "ela" <ela@yantai.org> wrote:
>>To access a spreadsheet file column by column, I use the 2D array @AoA to
>>store the contents. However, I don't know how to state in the for loop
>>because common perl tutorials assume access row by row. What should I
>>replace $#AoA with?
>
> Do you know what $#AoA is? Why do you think that picking some other
> number would change the logic of your algorithm from columns of rows to
> rows of columns?
The problem is I don' t know what the last index for a 2D array refers to...
> You need to change your algorithm to have the outer loop iterate over
> the columns and the inner loop over the rows.
Yes. I should iterate over the columns and then rows. That's why I first
store the file content into a 2D array. Say, if I have something like:
array of size 3 by 2
15 6
3 9
7 18
then if I have to access as 15, 3, 7 and then 6,9,18 I should move the first
index, e.g. arr[0][0], arr[1][0], and arr[2][0]; then
arr[0][1], arr[1][1] and arr[2][1]
------------------------------
Date: Thu, 24 Nov 2011 21:04:05 -0800
From: Jürgen Exner <jurgenex@hotmail.com>
Subject: Re: access a 2D array column by column
Message-Id: <uu7uc7d0tp6mg86s4jpgi7djap6nr2d4rq@4ax.com>
"ela" <ela@yantai.org> wrote:
>
>"Jürgen Exner" <jurgenex@hotmail.com> wrote in message
>news:lk6uc7lcbav40d0th76roqr2h4rh1vl1cj@4ax.com...
>> "ela" <ela@yantai.org> wrote:
>>>To access a spreadsheet file column by column, I use the 2D array @AoA to
>>>store the contents. However, I don't know how to state in the for loop
>>>because common perl tutorials assume access row by row. What should I
>>>replace $#AoA with?
>>
>> Do you know what $#AoA is? Why do you think that picking some other
>> number would change the logic of your algorithm from columns of rows to
>> rows of columns?
>
>The problem is I don' t know what the last index for a 2D array refers to...
In Perl there is no such thing as a 2D array. As AoA indicates you got
an _A_rray _o_f (references to) _A_rrays.
>> You need to change your algorithm to have the outer loop iterate over
>> the columns and the inner loop over the rows.
>
>Yes. I should iterate over the columns and then rows. That's why I first
>store the file content into a 2D array. Say, if I have something like:
>
> array of size 3 by 2
>
>15 6
>3 9
>7 18
>
>then if I have to access as 15, 3, 7 and then 6,9,18 I should move the first
>index, e.g. arr[0][0], arr[1][0], and arr[2][0]; then
>arr[0][1], arr[1][1] and arr[2][1]
So, where is the problem?
for $col in (0..1) {
for $row in (0..2) {
print $arr[$row][$col]
}
}
jue
------------------------------
Date: Thu, 24 Nov 2011 23:16:27 -0600
From: Tad McClellan <tadmc@seesig.invalid>
Subject: Re: access a 2D array column by column
Message-Id: <slrnjcu988.d2v.tadmc@tadbox.sbcglobal.net>
ela <ela@yantai.org> wrote:
>
> use warnings;
You should enable strict on every Perl program:
use strict;
> my ($rankfile) = @ARGV;
> open (FP,$rankfile);
You should always, yes *always*, check the return value from open().
You should use the 3-argument form of open().
You should use a lexical filehandle.
open my $FP, '<', $rankfile or die "could not open '$rankfile' $!";
> my @cells = (); my @AoA = ();
You should declare variables in the smallest possible scope.
Since you do not use @cells outside of the while loop, you should
scope @cells to the while loop's block rather than scoping it
to the whole file like that.
> while ($line=<FP>) { chomp $line; @cells = split /\t/, $line;
while (my $line = <$FP>) {
chomp $line;
my @cells = split /\t/, $line;
> push @AoA, [ @cells ];
Now that @cells is properly scoped, you can take a reference to
it directly rather than having to copy it to an anonymous array:
push @AoA, \@cells;
> }
--
Tad McClellan
email: perl -le "print scalar reverse qq/moc.liamg\100cm.j.dat/"
The above message is a Usenet post.
I don't recall having given anyone permission to use it on a Web site.
------------------------------
Date: Thu, 24 Nov 2011 04:23:20 -0800 (PST)
From: Horst Lemminger <damjensen@gmail.com>
Subject: Convert Wiki to HTML
Message-Id: <ef3447cc-0abc-48c2-a2f3-5413cf5ce21b@p9g2000vbb.googlegroups.com>
I would like to convert the raw source of a local Wiki to HTML (static
files), preferably DokuWiki.
Unfortunately I have found very few (next to none) projects for Perl
that converts simple Wiki markup to HTML. I need the REVERSE of
HTML::WikiConverter
What are my choices here ?
Anyone have done that before ?
------------------------------
Date: Thu, 24 Nov 2011 14:29:39 +0000
From: Justin C <justin.1104@purestblue.com>
Subject: Re: Convert Wiki to HTML
Message-Id: <jv02q8-p3v.ln1@zem.masonsmusic.co.uk>
On 2011-11-24, Horst Lemminger <damjensen@gmail.com> wrote:
> I would like to convert the raw source of a local Wiki to HTML (static
> files), preferably DokuWiki.
>
> Unfortunately I have found very few (next to none) projects for Perl
> that converts simple Wiki markup to HTML. I need the REVERSE of
> HTML::WikiConverter
>
> What are my choices here ?
>
> Anyone have done that before ?
CPAN IYF. First hit on searching CPAN for WIKI is
Konstrukt::Plugin::wiki:
DESCRIPTION
This plugin will render given wiki markup into an other format (e.g.
HTML).
Is this suitable?
Justin.
--
Justin C, by the sea.
------------------------------
Date: Thu, 24 Nov 2011 22:12:08 -0800 (PST)
From: SSS Develop <sssdevelop@gmail.com>
Subject: Re: Convert Wiki to HTML
Message-Id: <27bdcab0-6ff6-4103-9f7f-a54b2a11e7ff@d17g2000yql.googlegroups.com>
On Nov 24, 5:23=A0pm, Horst Lemminger <damjen...@gmail.com> wrote:
> I would like to convert the raw source of a local Wiki to HTML (static
> files), preferably DokuWiki.
>
> Unfortunately I have found very few (next to none) projects for Perl
> that converts simple Wiki markup to HTML. I need the REVERSE of
> HTML::WikiConverter
>
> What are my choices here ?
>
> Anyone have done that before ?
If you do not want to integrate this with any tool or DocuWiki itself
- why not use LWP kind of modules to scrape/crawl the sites as html
pages. that will be quick solution and get all App into static html
page.
Cheers,
------------------------------
Date: Thu, 24 Nov 2011 22:14:25 -0800 (PST)
From: Horst Lemminger <damjensen@gmail.com>
Subject: Re: Convert Wiki to HTML
Message-Id: <8aeadc6d-1a65-4ceb-b14d-3550c76f01b3@z12g2000yqm.googlegroups.com>
> CPAN IYF. First hit on searching CPAN for WIKI is
> Konstrukt::Plugin::wiki:
Well, looks like what I need, but I don't need a komplete web
framework. My conversion needs just to be a one-time thing, and should
ideally be run from command line.
Perhaps I just need to learn how to use Konstrukt.
Do anyone know how to include a file between the wiki tags (or expand
variables ?)
------------------------------
Date: Thu, 24 Nov 2011 22:26:55 -0800 (PST)
From: Horst Lemminger <damjensen@gmail.com>
Subject: Re: Convert Wiki to HTML
Message-Id: <3e99fcb0-9ef0-41e0-96ce-faad1ad8c625@v5g2000yqn.googlegroups.com>
> If you do not want to integrate this with any tool or DocuWiki itself
> - why not use LWP kind of modules to scrape/crawl the sites as html
> pages. that will be quick solution and get all App into static html
> page.
This could be my last resort, but since I would like to do the
following
* edit text in my own application (simple notepad-like edit window
- text format ideally Wiki
* files are saved as text files OR in a database backend
* now files can be compiled with a script to static HTML
* the static HTML is the "help window" for a Windows application
So I do not need a webserver for this project, unless I have to.
But as you say, I could be forced to have one.
------------------------------
Date: Thu, 24 Nov 2011 22:36:08 -0800 (PST)
From: Horst Lemminger <damjensen@gmail.com>
Subject: Re: Convert Wiki to HTML
Message-Id: <5715ddba-ac2c-4424-b66a-dbeed049b976@w3g2000vbw.googlegroups.com>
On Nov 25, 7:14=A0am, Horst Lemminger <damjen...@gmail.com> wrote:
> > CPAN IYF. First hit on searching CPAN for WIKI is
> > Konstrukt::Plugin::wiki:
>
> Well, looks like what I need, but I don't need a komplete web
> framework. My conversion needs just to be a one-time thing, and should
> ideally be run from command line.
>
> Perhaps I just need to learn how to use Konstrukt.
>
> Do anyone know how to include a file between the wiki tags (or expand
> variables ?)
The following is the only two lines I could find about running
Konstrukt directly.. but not much of an example.. Should be able to do
variables instead of files.. ?
=3D=3D=3D
my $filehandler =3D Konstrukt::Handler::File->new($root, $filename);
$filehandler->handler();
=3D=3D=3D
------------------------------
Date: Fri, 25 Nov 2011 09:05:48 +0100
From: Helmut Richter <hhr-m@web.de>
Subject: Re: Convert Wiki to HTML
Message-Id: <alpine.LNX.2.00.1111250903330.6436@lxhri01.ws.lrz.de>
On Thu, 24 Nov 2011, Horst Lemminger wrote:
> Well, looks like what I need, but I don't need a komplete web
> framework. My conversion needs just to be a one-time thing, and should
> ideally be run from command line.
Maybe Markdown (http://daringfireball.net/projects/markdown/) does what
you want. It is something that needs no preparation, just download it an
run it. It has its own Wiki-style syntax, and it depends on your Wiki
whether the syntaxes are similar enough.
--
Helmut Richter
------------------------------
Date: Thu, 24 Nov 2011 08:49:18 +0100
From: Miranda McKennitt <agquarx@gmail.com>
Subject: Re: Generating an anonymous reference to an OO method
Message-Id: <9j6b7uFetbU1@mid.individual.net>
On 2011-11-21 15:19:07 +0100, Tad McClellan <tadmc@seesig.invalid> said:
> Miranda McKennitt <agquarx@gmail.com> wrote:
>>
>> So, can I waive the copyright somehow?
>
>
> You are asking in the wrong place.
>
> There is a newsgroup for discussing intellectual property issues:
>
> misc.int-property
Thanks. I didn't know that newsgroup exists.
--
ASTARTE IS A GODDESS FREE
------------------------------
Date: Fri, 25 Nov 2011 02:08:28 -0600
From: tadmc@seesig.invalid
Subject: Posting Guidelines for comp.lang.perl.misc ($Revision: 1.9 $)
Message-Id: <H9-dnYXXSdph0VLTnZ2dnUVZ_tOdnZ2d@giganews.com>
Outline
Before posting to comp.lang.perl.misc
Must
- Check the Perl Frequently Asked Questions (FAQ)
- Check the other standard Perl docs (*.pod)
Really Really Should
- Lurk for a while before posting
- Search a Usenet archive
If You Like
- Check Other Resources
Posting to comp.lang.perl.misc
Is there a better place to ask your question?
- Question should be about Perl, not about the application area
How to participate (post) in the clpmisc community
- Carefully choose the contents of your Subject header
- Use an effective followup style
- Speak Perl rather than English, when possible
- Ask perl to help you
- Do not re-type Perl code
- Provide enough information
- Do not provide too much information
- Do not post binaries, HTML, or MIME
Social faux pas to avoid
- Asking a Frequently Asked Question
- Asking a question easily answered by a cursory doc search
- Asking for emailed answers
- Beware of saying "doesn't work"
- Sending a "stealth" Cc copy
Be extra cautious when you get upset
- Count to ten before composing a followup when you are upset
- Count to ten after composing and before posting when you are upset
-----------------------------------------------------------------
Posting Guidelines for comp.lang.perl.misc ($Revision: 1.9 $)
This newsgroup, commonly called clpmisc, is a technical newsgroup
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As you would expect, clpmisc discussions are usually very technical in
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The article at:
http://www.catb.org/~esr/faqs/smart-questions.html
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Check the other standard Perl docs (*.pod)
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Try doing a word-search in the standard docs for some words/phrases
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This section describes things that you *really should* do before posting
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Lurk for a while before posting
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Search a Usenet archive
There are tens of thousands of Perl programmers. It is very likely
that your question has already been asked (and answered). See if you
can find where it has already been answered.
One such searchable archive is:
http://groups.google.com/advanced_search
If You Like
This section describes things that you *can* do before posting to
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Check Other Resources
You may want to check in books or on web sites to see if you can
find the answer to your question.
But you need to consider the source of such information: there are a
lot of very poor Perl books and web sites, and several good ones
too, of course.
Posting to comp.lang.perl.misc
There can be 200 messages in clpmisc in a single day. Nobody is going to
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Your post is in competition with 199 other posts. You need to "win"
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Is there a better place to ask your question?
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Do not spend them on non-Subjects (Perl question, one-word
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For more information on choosing a Subject see "Choosing Good
Subject Lines":
http://www.cpan.org/authors/id/D/DM/DMR/subjects.post
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http://web.presby.edu/~nnqadmin/nnq/nquote.html
Speak Perl rather than English, when possible
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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
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(perldoc perldiag). If you would like perl to look them up for you,
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Do not re-type Perl code
Use copy/paste or your editor's "import" function rather than
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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
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__DATA__ token (perldata.pod) to provide the file contents inside of
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Show the output (including the verbatim text of any messages) of
your program.
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getting.
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to at least describe the 2 things that you *do* know: input and
desired output.
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Many people (and even some Usenet servers) will automatically filter
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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.liamg\100cm.j.dat/"
The above message is a Usenet post.
I don't recall having given anyone permission to use it on a Web site.
------------------------------
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>
Administrivia:
To submit articles to comp.lang.perl.announce, send your article to
clpa@perl.com.
Back issues are available via anonymous ftp from
ftp://cil-www.oce.orst.edu/pub/perl/old-digests.
#For other requests pertaining to the digest, send mail to
#perl-users-request@ruby.oce.orst.edu. Do not waste your time or mine
#sending perl questions to the -request address, I don't have time to
#answer them even if I did know the answer.
------------------------------
End of Perl-Users Digest V11 Issue 3551
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