I think this might work.
/\b\d{4}\b/
Rob
-Original Message-
From: Chap Harrison [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 30, 2004 10:38 AM
To: [EMAIL PROTECTED]
Subject: Trouble with m///g
Hi,
I'm trying to extract all four-digit numbers from a string in one fell
swoop,
The nested quotes in my attempt to put TMPL_VARs
into the value field make me suspicious that I
am misusing HTML::Template
It may look odd, but the nested quotes are fine.
If I had to guess I would say it is because there is a newline within the
tag (as it seems to be in your example). I
The best module that I know of for scaling is Image::Magick. I didn't find
the docs very easy to navigate, but it does a very good job.
[Very light documentation]
http://search.cpan.org/~jcristy/PerlMagick-6.02/Magick.pm
[Additional docs]
http://www.imagemagick.org/www/perl.html
The code you
Put this at the top of your script:
use lib '/tmp/perlNew/lib';
Or you can set the environment variable PERL5LIB to that path.
Rob
-Original Message-
From: Ajey Kulkarni [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 09, 2004 5:56 PM
To: [EMAIL PROTECTED]
Subject: Perl modules
There is embperl like was mentioned. Also Mason is very popular and well
documented.
Rob
-Original Message-
From: Octavian Rasnita [mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 08, 2004 11:57 AM
To: [EMAIL PROTECTED]
Subject: PHPerl
Hi all,
Is there a way to embed Perl
The trick is to use Time::Local to find the first day of the month, then
subtract 1 day.
This prints:
09-2004
08-2004
07-2004
###
use Time::Local;
use constant DAY = 86_400;
$current = time;
$previous = first_day($current) - DAY;
$current_2 = first_day($previous) -
first_day
{
my $time = shift;
my @time = localtime($time);
$time[3] = 1;
return timelocal(@time);
}
sub get_date
{
my $time = shift;
my @time = localtime($time);
return sprintf('%02d-%04d', $time[4]+1, $time[5]+1900);
}
-Original Message-
From: Hanson, Rob
Sent: Tuesday
Maybe this will help... maybe it won't.
I just tried installing Image::Magick (on Win2K/AS perl 5.6.1 build 635),
and had no issues. The install showed that it installed Magick.dll, and
where it was installed to. Note that I used Image-Magick, which is how AS
has it stored in the repository.
[mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 25, 2004 5:42 PM
To: Hanson, Rob; Beginners (E-mail)
Subject: RE: Image::Magic / Perl::Magick
Rob,
Did you have any problems installing PerlMagick? Below is the error I
received. Any suggestions?
Thanks again for your help. ImageMagick is now
I need to prove that perl is better that ASP.NET for the project.
This is like comparing apples and granola bars. Perl is a language and
ASP.Net is a framework. What you should really be doing is comparing Perl
vs. C# (or VB.Net).
ASP.Net (and /Net in general) is a powerful tool, and although
Ideally, I would use SAX to parse things
Optionally you could look at XML::RAX.
Article on the RAX concept:
http://www.xml.com/pub/a/2000/04/26/rax/index.html
RAX allows you to specify a record seperator (a tag in the XML file), and
splits into into chunks of that tag. It is stream based so
I don't recall that thread, but basically you can do a few things.
When you install, specify some local directory to install into:
perl Makefile.PL PREFIX=/some/local/path LIB=/some/local/path
/some/local/path is the root of your local library.
For some modules that don't require
results id=Quiz1 file=Quiz1.pdf n=3
This isn't well-formed XML. The n=3 must be n=3. All attributes in XML
must be quoted, either single-quotes or double-quotes.
Rob
-Original Message-
From: David Arnold [mailto:[EMAIL PROTECTED]
Sent: Monday, July 19, 2004 2:04 AM
To: [EMAIL
I still don't know how to declare arrays using only '$' instead of '@'
You can't. But you can store a *reference* to an array in a scalar.
This will work:
# the backslash (\) returns a reference to the
# variable, so this doesn't actually pass the array,
# it passes a reference (pointer sort
Use of uninitialized value
This just means that you haven't given a value to $atmnb yet (which will
happen unless /^XXX/ matches in your loop).
To get rid of the warning you should initialize the variable when you create
it.
Instead of:
my $atmnb;
Use this:
my $atmnb = '';
Rob
To see what directories are in your Perl's path, you can run this at the
command line. It should work on Win or *nix.
perl -e print join(qq[\n], @INC)
You might instead want to create your own private library by setting the
PERL5LIB environment variable. It will add a directory to the
I think you should turn on errors... by debault DBI will supress them.
After the DB connection, put this...
$db-{RaiseError} = 1;
Once you do this you will see that your prepare failed, your SQL syntax is
not valid.
select * from ban where row num 100
It should be rownum, not row num.
Rob
Thre ways...
exec('make');
system('make');
`make`;
The three differ slightly, you might want to check the docs.
Breifly...
exec - executes the command, but your Perl program ends where it is.
system - executes the command, waits for it to finish, returns the return
code.
`` (backticks) -
You could do create the string then strip the space. I think there was
something in the Perl Cookbook that was similar to this.
my $longlist = no_space(END_OF_LIST);
Clause1|
Clause2|
Clause3|
Clause4
END_OF_LIST
print $longlist;
sub no_space
{
my $txt =
Would this be correct: /foo|bar/
Yes.
Should they be grouped thusly: /(foo|bar)/
This works too, but has the side effect of setting $1 to the matched value,
either foo or bar.
What about /(?:foo|bar)/ ?
This is ok too, but the parens aren't necessary. If you wanted to search
for foobar
I don't know much about asm, but maybe this will help a little. A s///
should work, and as the replacement value it can call a function to do the
work.
# untested
$code = handle_includes($code);
sub handle_includes {
my $code = shift;
$code = s/^\s*include\s+([\w\.]+)/include_file($1)/eg;
Try this...
# untested
$text =~ s/\[[^\]]+?\]/$1/g;
[^\]] - means anything but a closing bracket
+? - means 1 or more times (as few as possible)
Rob
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
Sent: Thursday, April 15, 2004 7:11 PM
To: [EMAIL PROTECTED]
It might be easier to do it with a split.
# untested
foreach (@domains) {
my @parts = split(/\./, $_);
my $name;
if (@parts 1) {
shift @parts;
$name = '.' . join('.', @parts);
}
print $name;
}
As a regex, this I think will work...
foreach (@domains) {
my $name = $_;
Any idea why print never gets executed?
The su is probably waiting for you to enter in a password.
...And this probably doesn't do what you think anyway. Even though you su,
it doesn't change who the current script is running under. Your program (as
written) will spawn a new process, execute
spawned and su gets executed.
Is there another way os saying su using perl?
Thanks.
On Mar 5, 2004, at 10:26 AM, Hanson, Rob wrote:
Any idea why print never gets executed?
The su is probably waiting for you to enter in a password.
...And this probably doesn't do what you think anyway. Even
I'm not sure, probably by forking and execing. It won't return the result
code from the other program though.
$some_process = 'tcpdump -v -ieth0 file';
my $pid = fork();
unless ($pid) {
exec($some_process);
die Can't start $some_process: $!;
}
print Pid is $pid\n;
-Original
Is there a way to determine the number of lines
in a file without actually iterating through the
file and incrementing a file?
No.
I found the following on perlmonks.org, it works
great but this is command line syntax
When you deparse that command (see below), you can see that all it does
Is it possible to do this
No, at least not the way you are doing it.
Something like this will work (untested)
my %replacements = (ARE = 756, TYP = 978, SPE = 840);
$marque =~ s/(ARE|TYR|SPE)/$replacements{$1}/;
Rob
-Original Message-
From: Olivier Wirz [mailto:[EMAIL PROTECTED]
Sent:
then I tried this:
lc($input);
and I got the same error.
This shouldn't give an error. ...It didn't give me one.
so I tried this:
lc(chomp($input = STDIN)));
and I got an error message that said I couldn't use lc
in that way - or something like that.
The exact error would be helpful.
Must I abandon trying to get double-quote marks
into my hash element?
No, it would be silly if the language didn't support that. And I want to
apologize for my long winded answer that is to follow... I guess I just felt
like typing.
...
As for an answer I think some explanation is needed,
?xml version=1.0 encoding=ISO-8859-1?
docnumPIP 189165/docnum
greeting class=simpleHello, world!/greeting
...
Attempt to insert start tag after close of document
element at ./test.pl line 11
A rule of XML is that there MAY ONLY BE ONE ROOT ELEMENT. You have two.
You need to put docnum and
but I can not retrieve the data into $newline with join. Is this bit wrong
Yes, it is a little off.
$member_array[$count]
This *isn't* an array, it is an *array reference*
[EMAIL PROTECTED]
Same with this.
Join takes a list of scalars, not a list of references. So you need to
dereference
It evaluates the code that you give it. It can be used when you need to
create code on the fly, like this...
my $cmd = 'print';
my $arg = 'Hello World';
eval($cmd '$arg');
This is useful for allowing a user to pass code to the program (for whatever
reason).
The other use it to trap errors.
my
I have to run, otherwise I would elaborate a bit.
The code is below. Check out the perldoc perlreftut for what the
[EMAIL PROTECTED], @{$row}, and $a-[2] means. Check out perldoc -f sort for
what the sort {...} @rows means. And of course ask questions if you get
stuck (but take a look at the
my ($update_path, $gallery_title) = Test::Template::choose();
Can I assume that your module has the line package Test::Template; at the
top of the file? If not, that is why.
use Test::Template;
This says load {lib directory}/Test/Template.pm.
Test::Template::choose();
This says execute
my $caller=
You are so close.
my $caller = caller;
Look at perldoc -f caller for more info on the different ways to use it.
Please note that sometime the info you get from caller isn't the real
caller. If you call your debug() function right before a return statement
it is
I think you will like this, it does exactly whay you described...
perl -pi.bak 's|ReplaceThis|WithThis|' *
This does everything you want, AND makes a backup of each file. You can
only perform a substitution on a single line though (AFAIK).
See perldoc perlrun for all of the details.
WARNING:
Sorry, my bad. Forgot the -e switch...
perl -pi.bak -e 's|ReplaceThis|WithThis|' *
Rob
-Original Message-
From: Hanson, Rob
Sent: Monday, January 19, 2004 8:04 PM
To: 'Perl'; [EMAIL PROTECTED]
Subject: RE: Search and replace pattern in a file
I think you will like this, it does
I want to send 2 arguments to a subroutine
in the form of arrays
I think what you want to use are references. Check out perldoc perlreftut.
# WARNING: untested code ahead
my @a = `/bin/cat /some/file`;
my @b = `/bin/cat /another/file`;
my @result = addArray([EMAIL PROTECTED], [EMAIL
for ($day=$keeplogs+1;$day$keeplogs;$day++) {
Hmmm... lets assume $keeplogs = 60 (right?). The problem is that $day is
always going to e greater than $keeplogs, because you initialized day that
way. So yes, you need to set an upper bounds.
Maybe this.
my $max_days_old = 120;
# loops from 61
I'll see if I can explain it gently as you seem to be a gov't worker ;)
There is no perl translation... you just aren't thinking about it in a
web-app type of way. The sequence would look like this...
1. display page A to user
2. user submits page A with hidden form field
3. perl script process
When the actual C code (or ASM equivalent or
bytecode or whatever Perl uses) for a
function is run, is there overhead to the
function?
I'm no internals expert, but I would say yes, there is some overhead. The
overhead has to deal with pushing aliases of the passed params onto the @_
array
When is it coming out
The usual answer is when it is done.
It is far from completion, but a lot of progress has been made. My guess is
beta in a year... but nobody really knows, and there is no schedule for it.
The goal is to do it right, even if it means a very long development cycle.
and
please have a look at the code below and give comments
Here are some quick comments.
#1. Always use strict
#2. See #1.
When you use strict it foeces you to do things the right way and will
help catch errors because of the extra checks it makes.
So something like this:
@dataFile=; # read in
On CPAN.
http://search.cpan.org/~jbaker/Apache-Session-1.54/
Rob
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Monday, October 20, 2003 6:15 PM
To: [EMAIL PROTECTED]
Subject: Where is Apache::Session
I'm looking for the download of Apache::Session.
There
I'm not sure if John or Greg from the previous answers understand the
question... or maybe it is me that is misunderstanding it.
You are receiving a string from the query string that includes quotes, but
it isn't printing the whole value. Correct?
If that is the case, I am not sure I know where
Try stat(). It is a built-in function.
From perldoc -f stat:
stat FILEHANDLE
stat EXPR
statReturns a 13-element list giving the status info
for a file, either the file opened via FILEHANDLE,
or named by EXPR. If EXPR is omitted, it stats
$_. Returns a null list if
The short answer...
Make sure this is the first print statement:
print Content-type: text/html\n\n;
The long answer...
CGI scripts work by passing the web server a header part and a body part.
The header part must contain AT LEAST the content type of the document (e.g.
text/plain, text/html,
Like Jeff said, you can just use \w if you are allowing numbers as well.
s/([A-Za-z]_*)/\n$1/g;
This will take a little bit of explaining, so bear with me.
[ ... ] - Brackets represent a character class. A char class will match a
SINGLE char that is inside of it. So if I wanted to match a,
You could just use a regex...
$string =~ s/.//;
Or even substr()...
substr($string, 0, 1, '');
Both look equally efficient.
Rob
-Original Message-
From: Li, William [mailto:[EMAIL PROTECTED]
Sent: Tuesday, October 07, 2003 12:57 PM
To: [EMAIL PROTECTED]
Subject: Chopping off
$string =~ s/^.(.*).$/$1/;
It's prettier, but it's very inefficient. It's probably 20+ times slower
then doing it in two steps.
It has to do with how Perl internally handled string data. When you s/// or
substr() all it does is move a pointer. With your version it would need to
rewrite the
It's open to user error quite easily
You can also use this...
my $x = my $y = '';
...Or...
my ($x, $y);
$x = $y = '';
...Or...
init(my ($x,$y));
sub init {
$_ = '' for (@_);
}
This last one uses the fact that $_ is an alias to the array item in @_, and
@_ contains aliases to the
Close, not quite. The quantifier (i.e. ?,+,*) appear AFTER the atom
(i.e. char or special symbol).
The syntax is also off a bit. It should be =~ and /../ (not single ticks).
$result =~ /^ *-?[0-9]+[.]?[0-9]* *\$/;
^ = beginning of line (also called an anchor)
* = zero or more spaces (not
My preference...
showargs();
Ick. I use this one when it is required (references and overriding
prototypes), otherwise it isn't what I mean. If I mean to just execute the
method, then I don't use it.
showargs;
Yuk. It saves a few keystrokes, but I tend to avoid it.
showargs();
I like
is compiled to be the
same speed.
Rob
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 02, 2003 6:15 PM
To: Hanson, Rob
Cc: '[EMAIL PROTECTED]'; [EMAIL PROTECTED]
Subject: RE: explicit vs implicit syntax
I agree it looks like the best standardized
I don't want the IP addresses to be
printed if they are not unique.
Unless you need to keep the ordering of the values you should use a hash
like this.
my %data;
for (@list_of_ip) {
$data{$_} = 1;
}
my @unique = keys %data;
Rob
-Original Message-
From: Dan Anderson
That isn't quite right, you may get better milage with this...
# untested
if ($z =~ /^[a-zA-Z_\-\.][\w\-\.]{2,}$/) {
# is ok
}
else {
# failed
}
Yours should also work, except that...
1. \s isn't needed in the first regex since a space would fail in the second
regex anyway.
2. You need to
Besides the advice given below, there are a few other things you can do...
To add the location of the Perl script to the lib path you can use this.
The FindBin module finds your script, then sets $Bin to that location.
use FindBin qw($Bin);
use lib $Bin;
Another way to do it is to set the
To: Hanson, Rob
Cc: 'Perl Newbies'; [EMAIL PROTECTED]
Subject: RE: building module/package
my redhat 9 is configured canned w/apache and mod_perl. The only
configuration I know is in /etc/httpd/conf.d/perl:
Alias /mp /var/www/mp
Directory /var/www/mp
SetHandler perl-script
PerlHandler
#this does NOT work
#how do i reference these vars
USER::fname=bob;
USER::lname=Bingham;
You need the $, like this...
$USER::fname=bob;
$USER::lname=Bingham;
But this may be what you really want. It will allow you to create multiple
USER objects, each with different values stored in them.
James pretty much covered everything, but here are my two coppers.
First thing is that this line is wrong...
my $self = { fname, lname };
It should be this...
my $self = {fname = '', lname = ''};
If you had use strict or warnings on it would have yelled about that one.
The way you had it, it
I ran some benchmarks.
The two-liner outperformed the one-liners by a 10 to 1 ratio. Code and
results below.
Benchmark: timing 10 iterations of OneLine, OneLine2, TwoLines...
OneLine: 41 wallclock secs (39.30 usr + 0.00 sys = 39.30 CPU) @ 2544.79/s
OneLine2: 34 wallclock secs (32.58
, 2003 10:18 PM
To: Hanson, Rob; [EMAIL PROTECTED]
Subject: RE: Should loops return a value?
From: Hanson, Rob [EMAIL PROTECTED]
If you really want a loop to return something, you can roll your own, even
in Perl 5... but the syntax won't be as you gave.
Ye - i'm not searching a way to solve
Can someone explain how does one pass
a parameter to a Perl Module?
There are a few ways.
#1 - On the use line
use My::Module qw(foo bar);
When you use a module it first loads the module and evaluates it. Second
it runs the import() subroutine in the module (if there is one), passing the
I see two ways of writing this code.
Hmmm, how about a third way. The following code dynamically loads a module
based on the extension of the file. If it successfully loads the module it
instantiates a new object and calls the handle_file() method of the object.
This accomplishes a few
How can I do this?
You can do it like this...
# tested
my @stack;
while (STDIN) {
last if /QUIT/;
push @stack, $_;
}
print @stack;
Rob
-Original Message-
From: Dan Anderson [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 25, 2003 8:23 PM
To: Perl Newbies
Subject: How do
You want to extract numbers from an array
if they are 4 and put an 'a'-letter after them.
Try this...
# tested
@values = (1,3,5,7);
@bigger_than_4 = map {$_.'a'} grep {$_4} @values;
print @bigger_than_4;
You need to escape a loop with a value.
Not sure I understand what you are trying to
[mailto:[EMAIL PROTECTED]
Sent: Thursday, September 25, 2003 8:40 PM
To: Hanson, Rob
Cc: Perl Newbies
Subject: RE: How do ISTDIN to a stack until a pattern is matched, How
do I
First, thank you for your help. Second, please bear with me as I'm
a
perl noob.
I assume
Shortly, I think it might be good if
loops (etc.) could return values.
BTW - One of the goals for Perl 6 is that you will be able to build any Perl
construct in Perl itself.
So also although Perl5, and probably Perl6, won't let you return values from
a loop, you should at least be able to
Will the inner BEGIN block take precedence over the outer one
I dunno, but I guess I could check...
print Done\n;
BEGIN {
print Top begin\n;
}
BEGIN {
print Outer\n;
BEGIN {
print Inner\n;
}
}
BEGIN {
print Bottom begin\n;
}
This prints:
Top begin
Inner
Outer
Bottom begin
Done
[mailto:[EMAIL PROTECTED]
Sent: Thursday, September 25, 2003 9:36 PM
To: Hanson, Rob; [EMAIL PROTECTED]
Subject: RE: Should loops return a value?
Rob, did You read my message at all :-) ?
i just was wandering if there _could_ be more readable way to do this.
Andnot only for to be readable
I wonder why GET wouldn't work? Any ideas of the reason?
GET tells the receiving app to look at the query string (the part of the URL
after the ?), POST tells it to look at the body content. You passed the
data in the body content, NOT the query string... to the CGI module was
looking in the
Since I want to treat -book like a boolean
The problem is that you are telling Getopt::Long that book expects a
string value:
book=s =\$book,
This is untested, but this should work.
book =\$book,
It sets the value of $book to 1 if the option is present.
See the Getopt::Long docs, the
But I'm wondering if there is another way
(like the Java private variable) to say
all class variables declared here are unique
to each instance?
It sounds like you are trying to link how OO-Perl works with OO-Java... and
that is only going to make your head spin. What you really need to do
You will probably run into a few issues. First you need to fetch the MX
record for the domain before you can even connect. After that you could use
the SMTP verify user command to see if the user exists, but I think you
might find that many SMTP servers will not give you a reliable answer. I
You will still need a webserver.
Check out microweb, it does exactly what you need. I never tried it though,
so I can't say if it is any good.
http://www.indigostar.com/microweb.htm
Rob
-Original Message-
From: Gregg O'Donnell [mailto:[EMAIL PROTECTED]
Sent: Monday, September 15, 2003
Each link returned is a WWW::Mechanize::Link object. You need to use the
methods supplied to get the info.
See:
http://search.cpan.org/~petdance/WWW-Mechanize-0.59/lib/WWW/Mechanize/Link.p
m
Use it like this...
@LINKS = $agent-links();
foreach (@LINKS) {
print $_-url(), \n;
print
Sure.
Use this when running Makefile.PL.
perl Makefile.PL LIB=~/myhomelib PREFIX=~/myhomelib
This will install the modules to ~/myhomelib. To use the modules in a
script you can either use lib '/myhomepath/myhomelib' (note the full path,
no ~). Or you can set the environment var PERL5LIB to
I googles Julian and came up with two email addresses from this page:
http://www.monkey.org/openbsd/archive/misc/9904/msg00077.html
If that fails I'm not sure.
The FAQ on CPAN doesn't help much with this specific case since the mails
are bouncing:
You have it slightly wrong...
print $hashref{'disks'}-{'io'};
...And the quotes are optional (usually)...
print $hashref{disks}-{io};
Is there a more generic mailing list
for the different perl modules?
Thare are other lists/newsgroups, but most are geared to specific port
(ActiveState), or
I have no hard answers, but here are some suggestions from my admin...
I'd look to see which DBD connector he's trying to use. He's also using a
multi-threaded perl which I believe is buggy under Solaris -- especially
perl 5.6. I'd try re-compiling perl 5.8 and check that the DBD modules are
No extra module is needed. WWW::Mechanize is a subclass of LWP::UserAgent,
which supports it.
my $ua = new WWW::Mechanize();
$ua-credentials('www.myhostname.com:80', 'RealmName', 'user', 'pass');
$ua-get('http://www.myhostname.com');
print $ua-content;
The params are host/port, realm,
Windows is a little weird here because of the way long filenames are
supported. You need to use the short name of the directory, which is the
first 6 letters - a tilda - and a number (always 1, unless there multiple
files with the same first 6 chars).
This works for me:
print c:/progra~1/*.*;
This also works and is more portable...
my $dir = 'C:/Program Files';
opendir DIR, $dir;
print map {$dir/$_} grep {/.+\..+/} readdir(DIR);
closedir DIR;
Rob
-Original Message-
From: Hanson, Rob
Sent: Friday, September 05, 2003 8:38 PM
To: [EMAIL PROTECTED]
Subject: RE: REPOST - print
A simple regex will do the trick...
# untested
$text = ...;
$text =~ s|head.*?/head||s;
Or something more generic...
# untested
$tag = head;
$text =~ s|$tag[^]*?.*?/$tag||s;
This second one also allows for possible attributes in the start tag. You
may need more than this if the HTML isn't
with questions.
There are also the base modules such as HTML::Parser, etc. that the one
previously mentioned builds on, among others check CPAN.
http://danconia.org
Hanson, Rob wrote:
A simple regex will do the trick...
# untested
$text = ...;
$text =~ s|head.*?/head||s;
Or something more
mod_perl isn't a language, it is an application server.
If the question is Is it mod_perl safe?, then that is a different
question. I would think they are, both are OOP, and there is no state that
I am aware of that is outside of the object properties.
Rob
-Original Message-
From: rkl
If you are on Windows with AS-Perl, you should use there version of ReadKey.
I might be wrong, but I think that module includes some C code. So unless
you have C++ and compiled Perl yourself, you want to use the AS version of
the module, which will be pre-compiled for you.
The AS module list for
Something like this should work...
my $domain = 'www.station.fire.org';
if ($domain =~ /([^\.]+\.[^\.]+)$/) {
print $1\n;
}
else {
print Failed to find domain\n;
}
This is very lenient in the matching, so it should match all valid domain
names as well as a lot of invalid ones. If there
Use eq (as well as lt, gt, ne, ge, le, cmp) for string matching. The
operators == (as well as , , !=, =, =, =) for numeric matching.
Perl will convert the values based on the operator used.
So with ==, like you are using, Perl converts both arguments to numbers
before comparing.
So this is what
I run into this a lot. There is JavaScript in the page, and you need to
emulate that in your script.
Look at the source HTML for the page. It takes the password and look like
it Base 64 encodes the password, then sets a hidden form field named
encoded_pw to the value. It then clears the
Use backticks.
$result = `some command`;
system() on the other hand returns the exit status code.
$exit_code = system('some command');
...Or...
if (system('some command') != 0) {
print Failed!;
}
Rob
-Original Message-
From: Imtiaz Ahmad [mailto:[EMAIL PROTECTED]
Sent: Thursday,
I'll skip over most of your mail, and go right to the heart of the matter...
I am trying to return an array of
all records in the subroutine below.
#
# ...WARNING: UNTESTED CODE AHEAD...
#
sub getcols {
# I prefer this over the ($table) syntax...
# but it has the same end result
my
What is the best library to handle pictures?
Image::Magick is a great tool for creating thumbnails, it is both easy and
the shrunk images still look good.
http://search.cpan.org/author/JCRISTY/PerlMagick-5.57/Magick.pm
If you are running the ActiveState version of Perl, be sure to get it from
Is this possible?
I'm no expert of FTP software, so I can't say if that is generally possible,
but it will depend on what the FTP server software allows you to do. So I
would start there, find out what software they are running, then find some
documentation on it.
Rob
-Original
Take a look at the Error module (although you can use eval as well).
use DBI;
use Error qw(:try);
my $dbh = DBI-connect(...);
$dbh-{RaiseError} = 1;
try {
$dbh-do(insert ...);
}
catch Error with {
print STDERR Insert failed!;
}
$dbh-do(update ...);
...Or if you only want to update when
Remember these 3 words... search.cpan.org ;)
http://search.cpan.org/search?query=enummode=all
CPAN is always the best place to start looking for code.
On the results page is looks like enum will do what you need.
Rob
-Original Message-
From: Harter, Douglas [mailto:[EMAIL PROTECTED]
length() returns the length in characters, which for ASCII is also the
number of bytes. To get the bits, just multiply by 8.
If you are using a Unicode character set instead, I'm not too sure what will
be returned, or how you can convert it to bits.
Rob
-Original Message-
From: Dan
If you ftp them in binary mode instead of
ascii mode yes that will screw it up.
I wanted to elaborate on this since this is a common issue for the
unknowing.
When you tell FTP to use binary mode it doesn't modify the file, it just
copies it byte by byte. If you tell it to use ascii mode, then
Sure, just use this without an open or close statement...
print VOID 'test';
I'm not exactly sure how Perl handles this, but since there is no filehandle
called VOID is just goes away.
I wouldn't leave this in there when it goes into production, but it
shouldn't cause any problems during
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