On Apr 25, 2011, at 3:12 AM, Uri Guttman wrote:
finally, i am very proud of the code quality in those two modules. feel
free to look at them, ask me questions, flame the code, etc. i have no
issues with anything said about my code.
I'm an advanced beginner and I'm embarrassed to say that,
On Apr 25, 2011, at 10:59 AM, Uri Guttman wrote:
another real world template is the boilerplate in contracts
and legal documents. they have the document written out and fill in all
the blank parts. it is a very common concept and well worth knowing how
to do it in perl.
I'm fully on board
Tangential to the topic, but related to the traditional programming culture
some have described -- I've programmed professionally since 1978, although I
haven't come anywhere close to Randal's heights. In the early '90s I was a
developer at a DBMS vendor in Kendall Square, Cambridge, which was
On Apr 23, 2011, at 12:22 PM, Shlomi Fish wrote:
Just a note about etymology and semantics - it is a good idea to *never*
accuse someone of lying in an online forum.
But Shlomi - don't you remember? He #ifdef'd it out! :-p
Hee hee.
/facetious
Chap
--
To unsubscribe, e-mail:
On Apr 23, 2011, at 10:01 AM, Randal L. Schwartz wrote:
I just realized something this morning. If
you go back through my complaints here and elsewhere over the years,
they fall into two main camps:
(1) people who answer someone else's question badly
[snip]
This raises for me the
On Apr 19, 2011, at 11:17 AM, Rob Dixon wrote:
On 19/04/2011 16:00, Peter Scott wrote:
If anything is clear from that FAQ it is that the intention is to avoid
flames on this list. Casey and Kevin appear to have stopped monitoring
this group some time ago, though.
I have raised the issue
On Apr 19, 2011, at 10:54 PM, Brandon McCaig wrote:
On Tue, Apr 19, 2011 at 11:38 PM, Chap Harrison c...@pobox.com
wrote:
Then, add something to the effect that part of the purpose of
the list is to acquaint beginners with the culture of advanced,
professional programming
one person, and the only thing it affects is my
loyalty. I'll continue to use Perl, and to use the list until something better
comes along. I just wish that I still wanted to brag about it.
Sincerely,
Chap Harrison
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional
On Apr 5, 2011, at 8:49 AM, Shawn H Corey wrote:
You could use open:
#!/usr/bin/env perl
use strict;
use warnings;
open my $ls_fh, '-|', 'ls' or die could not open `ls`: $!\n;
chomp( my @files = $ls_fh );
close $ls_fh or die could not open `ls`: $!\n;
print @files\n;
__END__
Is
On Mar 18, 2011, at 10:52 PM, Brian Fraser wrote:
There is no need to do it in a single expression, other than causing your
maintenance programmer some headache.
Yes, that was certainly a challenge to follow!
Might I conclude, then, that a lot of those Perl extensions are of dubious
value,
On Mar 18, 2011, at 12:03 PM, C.DeRykus wrote:
Neat solution. IMO, though, it's much clearer and simpler
(particularly for subsequent maintainers), to identify errors
up front if you can and save the time and complexity to
review \G and pos() and the implication of a s/// return
count
On Mar 17, 2011, at 1:49 PM, C.DeRykus wrote:
On Mar 16, 9:58 am, c...@pobox.com (Chap Harrison) wrote:
#!/usr/bin/perl
use warnings;
use strict;
use feature :5.10;
#
# $line, unless empty, should contain one or more white-space-separated
# expressions of the form
# FOO
On Mar 17, 2011, at 5:21 PM, Rob Dixon wrote:
A s///g is 'successful' if it performs at least one substitution, in which
case it will return the number of substitutions made. In your code, it will
find as many key=value substrings as possible and replace them with just the
value string.
I'm trying to write a routine to parse a string containing a series of
parameters of the form
KEYWORD = VALUE
or just
KEYWORD (where the value defaults to 1)
I was able to write it using a WHILE loop, but then thought I'd try using the
'g' option of s/// to do the iteration.
It seems to
Oops, I misplaced the final closing parenthesis in the regex. But it doesn't
seem to matter.
- - - - -
#!/usr/bin/perl
use warnings;
use strict;
use feature :5.10;
#
# $line, unless empty, should contain one or more white-space-separated
# expressions of the form
# FOO
# orBAZ =
On Jan 4, 2011, at 12:09 AM, George Worroll wrote:
I would, however, recommend that you use the #!/usr/bin/perl line even on
Windows. It will make things a little easier if you have to move the script
over to a Unix like system. It won't cause any problems in windows, it will
just get
Love conquers all - even those thorny, iconoclastic Perl gurus! Happy New Year.
Chap
(oops, sorry for the top-post ;-)
On Dec 31, 2010, at 8:30 AM, jeff pang wrote:
2010/12/31 Raymond Wan r@aist.go.jp:
If we leave it to just the people who contribute and help, then it's
no longer a
is obvious. :-)
Octavian
- Original Message -
From: Chap Harrison c...@pobox.com
To: Perl Beginners beginners@perl.org
Sent: Friday, December 31, 2010 6:17 PM
Subject: Re: [OT] New Document: How to Start Contributing to or Using Open
Source Software
Love conquers all - even
On Dec 18, 2010, at 10:30 AM, Francesco Di Lorenzo wrote:
This message is particularly referred to serious programmer (with serious I
mean the ones who do programming for work).
The question is this:
What role do Perl have in your work? In which particular projects you use it?
Do you use
On Nov 27, 2010, at 7:45 AM, Téssio Fechine wrote:
--
tes...@krauzer:~/Perl/Ex/ch15$ cat smart
use 5.010;
use strict;
use warnings;
my @divisors = (1, 2);
say It's divisible by 2! if @divisors ~~ 2;
tes...@krauzer:~/Perl/Ex/ch15$ perl smart
On Nov 27, 2010, at 9:01 AM, Chap Harrison wrote:
On Nov 27, 2010, at 7:45 AM, Téssio Fechine wrote:
Why @divisors ~~ 2 is not true?
No idea - it seems to work fine for me:
- - -
/Users/chap/private/perl$ cat smart
use 5.010;
use strict;
use warnings;
my @divisors = (1, 2
Yes. The smart match operator was commutative only in version 5.10 of perl.
The change was made in the very next release - version 5.10.1.
Just wondering now -- does ...
@divisors ~~ 2
... have any meaning now?
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional
On Nov 26, 2010, at 1:10 PM, Téssio Fechine wrote:
given($ARGV[0]) {
when(/fred/i) { say 'Name has fred in it'; continue }
when(/^Fred/) { say 'Name starts with Fred'; continue }
when('Fred') { say 'Name is Fred' }
default { say I don't see a Fred }
}
On Nov 19, 2010, at 3:18 AM, Shlomi Fish wrote:
On Friday 19 November 2010 06:14:19 Chap Harrison wrote:
Perlbrew was mentioned, but it doesn't seem to be unanimously considered a
good solution to my problem.
Where do you see people speak against perlbrew?
See brian d foy's reply at:
http
On Nov 19, 2010, at 8:03 AM, Brian Fraser wrote:
On Fri, Nov 19, 2010 at 7:18 AM, Shlomi Fish shlo...@iglu.org.il wrote:
Where do you see people speak against perlbrew?
Not the OP, but here you go:
http://www.effectiveperlprogramming.com/blog/750/comment-page-1#comment-78
Thanks!
On Nov 19, 2010, at 9:55 AM, Chap Harrison wrote:
On Nov 19, 2010, at 8:03 AM, Brian Fraser wrote:
http://www.effectiveperlprogramming.com/blog/750/comment-page-1#comment-78
Thanks! Also by brian d foy, I see. And he provides a link ...
http://www.effectiveperlprogramming.com/blog/92
Hi folks,
The current version of Ubuntu Linux I'm using comes with Perl 5.10.1, but I
want to install and develop under 5.12.2. From what I've read in Perlmonks and
Stackoverflow, it's not difficult to install a separate version - all it needs
is its own directory. But I'm a little unclear
On Nov 14, 2010, at 4:36 AM, C.DeRykus wrote:
And now it seems a little bit
inelegant to redefine the closure each time through
the loop.
for my $flags ( ... ) {
my $mask = sub { return ($flags $_[0]) == $_[0] };
given( $flags ) {
when ( $mask-($one_and_three)
Hi folks,
I don't see any way, through the Inotify2 interface at least, of getting a list
of the 'watch' objects that an 'inotify2' object contains.
I can use Data::Dumper to see the structure of an inotify2 object ...
$VAR1 = bless( {
'w' = {
'1' =
I'm almost embarrassed to ask this, but I can't figure out a simple way to
construct a switch ('given') statement where the 'when' clauses involve
bit-testing.
Here's the only way I've figured out to build a switch statement that does the
trick. It seems unusually wordy, which makes me think
Hi folks,
I'm in the thinking stages of creating a table-load utility, which reads a
tab-separated CSV file and inserts or updates rows in a relational table
(probably Oracle). I don't think that will be too hard, having used Perl
DBI/DBD modules in the past. What's different is that
,
I realize that this is not specifically a Perl problem at this point, so I
guess I'll need to research some Unix-y ways of handling this.
On Nov 7, 2010 7:17 PM, Chap Harrison c...@pobox.com wrote:
Hi folks,
I'm in the thinking stages of creating a table-load utility, which reads a
tab
.
Pretty neat. Cheers and thanks!
Chap
On Nov 8, 2010 12:04 AM, Ishwor Gurung ishwor.gur...@gmail.com wrote:
Hi.
On 8 November 2010 15:46, Chap Harrison c...@pobox.com wrote:
On Nov 7, 2010, at 6:47 PM, shawn wilson wrote:
its Unix, I'd use cron as its probably already running. And do
Following the guidelines I found in numerous examples on the web, I wrote a
simple Client-Server app in Perl. However, it appears that the send buffer
does not get flushed until the connection is closed. That's fine for one-way
data transfer, but I need the server to be able to receive some
On Sep 2, 2010, at 3:51 PM, Uri Guttman wrote:
don't use that. use IO::Socket which is higher level and much easier to use.
It sure is! Thank you.
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
On Jun 26, 2010, at 7:34 AM, Jenda Krynicky wrote:
Did you try DBD::ODBC? I do believe there are still ODBC drivers for
dBaseIV installed on your computer so this should work. What problems
did not you have?
I *think* the problem is that dBaseIV drivers cost money. The company that I
-- As can be inferred from the qx above, a synchronous protocol is fine.
Sure do appreciate it!
Chap Harrison
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
Well, I suppose I've missed a subtlety along the way here. I have two
directories:
/path/to/existing/directory/foo/
/path/to/existing/directory/bar/
And I want to archive these two directories into a zip file named archive.zip.
Here's what I did, using the synopsis of Archive::Zip in CPAN as
Hi,
I can't believe I'm having such a hard time with this. I just want a
platform-independent way of copying a directory 'A' and its contents into
another directory 'B' (as a subdirectory of B, named A). Not crossing
filesystems or devices.
Various online sources have said you copy
Whoof! Thanks, Shlomi - I guess Copy-Recursive has what I need. I had no idea
it would be such a can of worms.
Chap
On May 23, 2010, at 10:57 PM, Shlomi Fish wrote:
Hi Chap,
On Monday 24 May 2010 04:09:52 Chap Harrison wrote:
Hi,
I can't believe I'm having such a hard time
Hi,
I need to search a binary file using a regex, and replace a 20-byte string with
another 20-byte string (binary).
The FAQ talks about perl -pi -e 's/foo/bar/g' myfile, but given that I'm
dealing with binary, and that I want to do this from within a larger script,
that is less than
On May 9, 2010, at 11:57 AM, John W. Krahn wrote:
This *may* work -- UNTESTED:
use Fcntl ':seek';
my $filename = 'binary_file';
open my $FH, '+:raw', $filename or die Cannot open '$filename' $!;
read $FH, my $data, -s $FH or die Cannot read from '$filename' $!;
length $data == -s $FH or
On Jan 8, 2010, at 10:25 AM, Jim Gibson wrote:
You can install modules without using CPAN. Download the distribution file
from:
http://search.cpan.org/CPAN/authors/id/A/AD/ADAMK/File-HomeDir-0.89.tar.gz
Unpack it in any directory.
Go to the top-level directory (File-HomeDir-0.89).
So here's what I ended up doing:
The original problem was that, when I executed 'cpan', it immediately told me
that
(a) it would have to go through its configuration process,
(b) the default location of '.cpan' was /Users/chap/Library/Application
Support/.cpan/, and
(c) would I like to
Hello,
My CPAN directory in Mac OS X 10.6 is /Users/chap/.cpan/ (where I think it has
been since time began). The 'cpan' command apparently doesn't know to look
there, because it complains, creates /Users/chap/Library/Application
Support/.cpan/, and then offers to start a complete CPAN
Hi,
For a couple of reasons I want to re-install Perl:
-- I need to see if I can do it at one go, since I put the the
original installation together over a period of months.
-- I'm hoping that, by also reinstalling all my CPAN modules, I may
cure an increasing amount of flakiness with CPAN.
I'm astonished I haven't encountered this until now (or at least,
noticed it until now): by default, split() silently doesn't return
trailing empty strings!
I've since learned about setting the LIMIT parameter to -1.
Thinking now that I should revisit every split() I've ever written.
There
Hi,
I was trying to find out why $input_field{$colname} wasn't returning
anything when $colname = Attendance_Comment, and discovered this odd
behavior:
DB41 p join /, keys %input_field
/Attendance_Code/SchoolID/Att_Date/Student_Number
DB42 p join \n, keys %input_field
Attendance_Comment
Wow - okay, I guess it all makes sense now. Input was from DOS file,
and I hadn't set $/ ! So the unchomped \x0d was remaining with the
final field and making havoc, esp. with printing. But if you're
interested:
Here is snippet of code that builds the @colnames array, reads input,
and
On Jun 13, 2009, at 1:54 AM, Chas. Owens wrote:
If you need to make a deep copy a data structure you should use the
dclone function from the Storable[1] module:
use Storable qw/dclone/;
Thanks!
I did find something Randal Schwartz had posted somewhere that did the
trick for me -
sub
On Jun 13, 2009, at 4:07 PM, David Christensen wrote:
Chas. Owens wrote:
the only True Way is to use tabs for indent levels and spaces for
alignment, this allows the user to set his or her indentation to
whatever he or she wants by modifying how many spaces a tab displays.
[72 columns
I've created a complex, nested data structure that is, at its
outermost level, a hash: %qa. It collects QA statistics for a school.
Now I want to be able to process multiple schools in one run, so I've
created another hash, %sch_qa, whose key is School Name and whose
value is a ref to
On Jun 4, 2009, at 8:10 PM, Raymond Wan wrote:
Chap Harrison wrote:
I've read perldoc perlrun but find it pretty confusing. Things
I've tried unsuccessfully are:
#!/usr/bin/perl /dev/clipboard
#!/usr/bin/perl /dev/clipboard
#!/usr/bin/perl -- /dev/clipboard
The body of the script always
I'm writing a collection of filters that read from the CygWin /
Windows system copy buffer (/dev/clipboard) and write to STDOUT. I
can certainly write Perl to open this file and read from it, but I
wondered if there was a way to put it into the shebang line. I don't
have any reason to
On Apr 18, 2009, at 5:29 AM, Peter Scott wrote:
Well, if you're able to upgrade to 5.10:
my $foo = $very_long_expression // n/a;
THAT'S what I was remembering.
Thanks. Mac OS X Leopard is at 5.8 but I assume someone's found a way
to install and use 5.10 without interfering with what
. Anyone know of a shortcut?
Thanks,
Chap Harrison
Perl 5.8.8
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
this in one statement, which perhaps isn't
advisable, nesting join() functions, but I'm failing thoroughly.
Could anyone show me the way (or dissuade me; whatever)?
Thank you,
Chap Harrison
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h
On Apr 1, 2009, at 2:04 PM, Chas. Owens wrote:
If I understand you correctly, you want a map[1] that feeds a join[2]:
#!/usr/bin/perl
use strict;
use warnings;
my @aref = (
[qw/a1 b1 c1/],
[qw/a2 b2 c2/],
[qw/a3 b3 c3/],
);
print join(, , map { ($_-[0]=$_-[2]) }
On Mar 30, 2009, at 6:31 AM, Rodrick Brown wrote:
Sounds like something as basic as
print Question to ask: ;
$value=INPUT;
is what your looking for?
No, I'm looking for a limited version of the editing capabilities that
modern command line interfaces have; namely, the ability to preload
$prompt = $rec{city}) =~ s/(?!^)([A-Z])/ $1/g;
$prompt .= , $rec{state} $rec{zip};
What is the above substitution doing?
Thanks again - this is wonderful.
Chap Harrison
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http
This may be beyond the beginner level I don't know.
I'd like to prompt the user to type in a City, State, and Zip in one
line. It's free-form, in that it's just for display, but I can make a
pretty decent suggestion based upon data I've previously gathered.
If I've gathered
On Mar 25, 2009, at 1:16 AM, Chas. Owens wrote:
You need to add the variables you want exported to either @EXPORT (the
mandatory list of things to export) or @EXPORT_OK (this list of things
to export on demand). The biggest complication is your desire to pass
in a variable. This means that we
Thanks - I have ordered, and now received, not only Intermediate Perl
but Perl Best Practices. Yum.
Chap
On Mar 24, 2009, at 12:05 AM, David Christensen wrote:
Chap Harrison wrote:
Now I'm writing a suite of tools that will share a lot of the same
functionality, and the right thing to do
to compilation errors.
$
Could anyone tell me what subset of Perl modules I need to be
concerned with, and what basic structure to follow, to accomplish this?
'testmod' is the main program; Dummy.pm is the module
Thanks very much,
Chap Harrison
testmod:
--
#!/usr/bin/perl
use
, please show
me the way - if I need to learn about modules now, so be it! :-)
Chap Harrison
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
!
Best,
Chap Harrison
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
I want to compute a file pathname based on a template at runtime,
when I know the value of a variable that the template uses.
In other words, the template for the path name looks like this...
/foo/bar/$project/here
...and I want to evaluate this expression once I have set the value of
On Mar 14, 2009, at 5:24 PM, John W. Krahn wrote:
Why not use sprintf() and '/foo/bar/%s/here' as the template:
On Mar 14, 2009, at 5:19 PM, Chas. Owens wrote:
* Search CPAN for template modules until you find one with the
features you want, this one looks fairly close to what you want:
On Mar 13, 2009, at 7:52 AM, Jenda Krynicky wrote:
That's prettymuch it, except that it's not an array of aliases, but
LIST of aliases. The difference is subtle, but important.
See http://perldoc.perl.org/perlfaq4.html#What-is-the-difference-
between-a-list-and-an-array%3f and
On Mar 12, 2009, at 12:52 AM, Chas. Owens wrote:
On Thu, Mar 12, 2009 at 01:27, Chap Harrison c...@pobox.com wrote:
It's still not intuitive to me why we FIRST convert the hash to
an array,
and THEN ask for keys - keys being hash-ish, rather than array-ish
sorts of
things. (I've said
Hello,
I have a hash of hashes, and I'm trying to bulk-assign some key/value
pairs to the referenced hash, using a technique I read on the
perlmonks list (hash slices, see link below). I've never been good at
working out syntax where complex data structures are concerned, and
this eludes
On Mar 11, 2009, at 11:51 PM, Chas. Owens wrote:
Dereference the hashref as an arrayref then ask for the keys:
#!/usr/bin/perl
use strict;
use warnings;
my %hash = ( adams = {} );
my @keys = qw/a ar af aw/;
my @values = (1, 19, 13, 11);
@{$hash{adams...@keys} = @values;
use
On Jul 20, 2006, at 1:30 AM, Todd W wrote:
Theres also Text::CSV_XS which is configurable (and faster than
Text::CSV).
Specifically, note the quote_char and escape_char arguments to the
constructor...
So there is - thanks!
I discovered that one record has a field containing \r, which
Hi,
I'm looking for a module or a perl code snippet to parse optionally-
quoted, comma-separated values.
The most obvious candidate, Text::CSV, won't do the job for two reasons:
-- it only recognizes double-quotes as the quote character. My input
uses single-quotes.
-- including the quote
On Dec 15, 2004, at 10:30 AM, Jay wrote:
you can also use the cpan shell or perl -MCPAN
to get information on installed modules,
Is there a command to the cpan interface will produce a list of all
installed modules?
Neither the 'h' command nor 'perldoc cpan' indicate anything, that I
can see.
Check out recipe 12.22 from the Perl Cookbook, called pmdesc. It
should also be available for download from O'Reilly and other places.
Also look into the CPANPLUS module from cpan.
Thanks, Jay. pmdesc isn't pretty, but it gives the answers. :-)
Chap
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
On Dec 3, 2004, at 10:10 AM, David Gilden wrote:
## This Does what _not_ do what I would expect -- return the first 3
characters of type '\w'
$tmp =Joe Smore1qazxswedcvfrtgbnhytujmkilptyot5000;
$tmp =~ s/(^\w{3})(.*)/$1/;
print $tmp\n;
FWIW, the above prints Joe on my Mac 10.3.6 / Perl
On Nov 30, 2004, at 7:19 PM, Lawrence Statton wrote:
So, in the spirit of Holiday Blessings and Peace on Earth, Goodwill
Toward Man that is tradition between November and January, when we
can get back to our regularly scheduled program of hatred and global
domination, let's declare it Be Kind To
This time I'm trying to read through a
tab-delimited text file with the first row containing headers. I want
to
print out any field/column name where the entire field is null (meaning
there is no value for that field for any record in the file).
[snip]
I'm thinking that if I read each column
Wait a minute there. I'm not learning programming. I've been a perl
programmer for 7 years and have written hundreds of more complex
programs than this and have written to thousands of files in my time.
I just needed another pair of eyes to possibly point out what I was
doing wrong.
Also,
Hi,
I'm trying to extract all four-digit numbers from a string in one fell
swoop, but I can't seem to come up with the proper regexp. This is my
first time using /g in a match so maybe there's a trick I'm missing.
For example, the string
aa 444 -
should yield
, but
that means it will want to find an ending delim on iteration n,
followed by a beginning delim on iteration n+1.
On Sep 30, 2004, at 9:41 AM, Hanson, Rob wrote:
I think this might work.
/\b\d{4}\b/
Rob
-Original Message-
From: Chap Harrison [mailto:[EMAIL PROTECTED]
Sent: Thursday, September
On Sep 30, 2004, at 9:55 AM, Wiggins d Anconia wrote:
Out of curiousity based on your description shouldn't it return,
:::::::
Or do you really mean, you are trying to capture all 4 digit strings
that are not in a string of longer digits? You need to be very
On Sep 30, 2004, at 10:41 AM, Jan Eden wrote:
my @a = ($foo =~ m'(?!\d{4})\d{4}(?!\d)'g);
Careful, you mistyped the original proposition:
my @a = ($foo =~ m'(?!\d)\d{4}(?!\d)'g);
Oops, sorry - I copied that into the email from Wiggins' reply, but
actually tested with Dave Gray's. Didn't notice
On Sep 30, 2004, at 10:35 AM, cats wrote:
yes i know i can not spell, im a dislexic moron
If you're like other dyslexics I've known, you're probably (a) not a
moron and (b) exceptionally brilliant in other areas.
Thanks for the reminder.
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For
85 matches
Mail list logo
