Recent questions tagged perl

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perl - Handling wide char values returned by Win32::API

The answer provided in wide char and win32::api works for passing utf-16 to the Win API. But how do ... CommandLineToArgvW. Thanks for any help. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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523 views

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perl - How do I force LWP to use Crypt::SSLeay for HTTPS requests?

My symptom is that I cannot use a proxy with HTTPS requests with LWP. This seems to be a common problem, and ... use it for the HTTPS requests. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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470 views

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perl - What is 4/16 in hashes?

if (%hash){ print "That was a true value! "; } That will be true if (and only if) the hash has at least ... can see that the result is 4/16? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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462 views

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perl - In what encoding does readdir return a filename?

Here's a Perl script that I have expected to print found when executed: #!/usr/bin/perl use warnings; use ... a filename with Umlaute in it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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626 views

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perl - How to convert text date to timestamp?

How to convert date in text format: 23.10.2011 11:35:00 to timestamp ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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514 views

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perl - How to subtract an array from an array?

When I try the following #!/usr/bin/perl use strict; use warnings; use Data::Dumper; my @bl = qw(red green ... purple pink. What's wrong here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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707 views

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perl - Character Translation using Python (like the tr command)

Is there a way to do character translation / transliteration (kind of like the tr command) using Python? ... to delete characters not replaced) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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437 views

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perl - Deadlocks due to buffering. How does it work?

The following question is a response to a comment about deadlocking in this answer. I am curious how deadlocks ... does this program deadlock? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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521 views

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perl - Extracting data from an XML document that uses namespaces

I have some XML files where I want to use some information from them. I have written a code that reads those files ... '@name'); say "$key"; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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635 views

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perl - Net::Google::AuthSub login failed with new Google Drive version

This code in Perl was working for years and now my Spreadsheets logins failed, when I logged into my account I ... to make it work? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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701 views

1 answer

perl - How do I set up a local CPAN mirror?

What do I need to set up and maintain a local CPAN mirror? What scripts and best practices should I be aware of? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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786 views

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perl - what does the double forward slash mean here?

I'm new to Perl and came across this piece of code at work, I search for a while but did not find the ... } // croak 'some information!'; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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755 views

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perl - How to test if a value exist in a hash?

Let's say I have this #!/usr/bin/perl %x = ('a' => 1, 'b' => 2, 'c' => 3); and I would like to ... 2 is a hash value in %x. How is that done? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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662 views

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perl - How can I list all variables that are in a given scope?

I know I can list all of the package and lexcial variables in a given scope using Padwalker's ... return \%in_scope; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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556 views

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perl - Why use nginx with Catalyst/Plack/Starman?

I am trying to deploy my little Catalyst web app using Plack/Starman. All the documentation seems to suggest I want ... straight up on port 80? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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692 views

1 answer

perl - How can I make a JSON POST request with LWP?

If you try to login at https://orbit.theplanet.com/Login.aspx?url=/Default.aspx (use any username/password ... more high-level if available. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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632 views

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perl - What's the difference between exists and defined?

What is the difference between if (defined $hash{$key}) { } and if (exists $hash{$key}) { } When do I know which to use? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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650 views

1 answer

perl - automatically install missing modules from CPAN

If I want to distribute a Perl script, what is the best way to painlessly install any required modules that are ... is missing or "too old". See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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851 views

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perl - Converting multi-line string to array

How do I convert a multiline string to array? my $text= " ads da sda s da d as das d a as dasd "; ... I dont want to remove or delete newline ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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581 views

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perl - How to make DateTime::Duration output only in days?

This code finds the difference between today and a fixed date. #!/usr/bin/perl use strict; use warnings; use ... seam like an elegant solution. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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650 views

1 answer

perl - When is a subroutine reference in @INC called?

As the title says, I'm not clear on when such a subroutine will be called. From the require page at perldoc ... is something I'm not getting. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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839 views

1 answer

perl - How to run CGI scripts on Nginx

I have problem setting up CGI scripts to be run on Nginx, so far I've found http://wiki.nginx.org/SimpleCGI ... at Perl, please help me Thanks See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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483 views

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perl - Why is it a bad idea to write configuration data in code?

Real-life case (from caff) to exemplify the short question subject: $CONFIG{'owner'} = q{Peter Palfrader}; ... only specific to the example. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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541 views

1 answer

perl - How to get the index of an element in an array?

Does Perl have a build-in function to get the index of an element in an array? Or I need write such a ... () or JavaScript array.indexOf() ] See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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472 views

1 answer

perl - binary sed replacement

I was attempting to do a sed replacement in a binary file however I am beginning to believe that is not possible. ... xxd -r -p > clean.jpg See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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686 views

1 answer

perl - Why should the shebang line always be the first line?

I have a simple perl script as below: #!/usr/bin/perl use strict; use warnings; print "hello world! "; ... matter what. Can anybody explain why? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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824 views

1 answer

perl - Convert Word doc or docx files into text files?

I need a way to convert .doc or .docx extensions to .txt without installing anything. I also don't want ... online for either. Any suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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492 views

1 answer

perl - How do I get a list of installed CPAN modules?

Aside from trying perldoc <module name> individually for any CPAN module that takes my fancy or going through ... command line or otherwise. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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