Re: What is the mean of the following syntax?

2022-08-03 Thread Olivier
William Torrez Corea writes: > Mean: !~ /\*/ !~ is "not matching the following regular expression" /\*/ is a regular expression matching a star (*). So the condition is true if $extension contains no star. Regular expressions is the heart of Perl, you may want to read a bit about it :) Best r

Re: What is the mean of the following syntax?

2022-08-03 Thread armando perez pena
Hello William, Perl is a programming language easy to use an relative easy to learn. But is very very tricky. The best way to learn is get a good book . Like 'Learning Perl' and read the book and practice. If you do not do that you will find a huge amount of special variables with stranges ch

Re: Virtualmin and Webmin web hosting control panel are written in Perl 5

2022-08-03 Thread Kang-min Liu
Turritopsis Dohrnii Teo En Ming writes: > If I want to learn Perl programming language from scratch having > totally no knowledge of it, how long (in terms of months or years) > would it take before I can confidently and proficiently modify > Virtualmin and Webmin code? Good day from Japan :)

Re: What is the mean of the following syntax?

2022-08-03 Thread Dermot
On Wed, 3 Aug 2022 at 11:45, armando perez pena wrote: > Hello William, > > Perl is a programming language easy to use an relative easy to learn. But > is very very tricky. > > I, personally, don't think perl is any trickier than any other language. Larry, who studied linguistics, borrowed a lot

Re: Virtualmin and Webmin web hosting control panel are written in Perl 5

2022-08-03 Thread Dermot
++Kang-min Liu It looks like you can get (paid) support [1] for Virtualmin so if it's not practical for you to take on the entire task, you might consider that route. [1] https://www.virtualmin.com/documentation/system/support/ On Mon, 1 Aug 2022 at 08:27, Turritopsis Dohrnii Teo En Ming < tdtem

Re: What is the mean of the following syntax?

2022-08-03 Thread William Torrez Corea
On 8/3/22, armando perez pena wrote: > Hello William, > > Perl is a programming language easy to use an relative easy to learn. But is > very very tricky. > > The best way to learn is get a good book . Like 'Learning Perl' and read the > book and practice. > > If you do not do that you will find a

Re: What is the mean of the following syntax?

2022-08-03 Thread Olivier
Hi, Dermot writes: > I, personally, don't think perl is any trickier than any other language. > Larry, > who studied linguistics, borrowed a lot of syntax from C and the unix shell to > keep things familiar. For regexes there was no blueprint and the grammar is a > little terse. I like to think

Re: How to can develop a program

2022-08-03 Thread Philip Parzygnat
For PDF related development one valuable resource is https://opensource.adobe.com/dc-acrobat-sdk-docs/pdfstandards/pdfreference1.7old.pdf I don’t have any experience in this but investigated many years ago to automate digital publication. Maybe it will help. I’m sure Perl can be applied but as