Re^6: How to look for two different file extensions?

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Re^7: How to look for two different file extensions? by Laurent_R (Canon) on Mar 09, 2017 at 23:00 UTC
3) Why is introducing "Perl6" in this name-dropping way to a Perl beginner a good thing? Because Perl 6 does exactly the right thing in this case, something that we have all hoped one day that our language would do, and precisely the thing that the original poster was hoping to work: `> for 1..6 { say $_ if $_ == 2\|3\|5\|8 } 2 3 5` [download] which is exactly how you would say it in English: "if value equals 2 or 3 or 5 or 8", which is so much easier than: "if value equals 2 or value equals 3 or value equals 5 or value equals 8".	[reply] [d/l]
Re^8: How to look for two different file extensions? by Anonymous Monk on Mar 09, 2017 at 23:08 UTC
`for (1..6) { print "$_\n" if $_ == 2 or $_ == 3 or $_ == 5 or $_ == 8 ; }` [download] Perl 5 does EXACTLY the right thing and is production ready. I have never hoped that your code would ever work in Perl5. Your simplified example is not the real world.	[reply] [d/l]
Re^9: How to look for two different file extensions? by Laurent_R (Canon) on Mar 10, 2017 at 00:05 UTC
Sure, I am doing that everyday at $work in Perl 5, but if I can save typing four times almost the same thing with just different values, then I am happier. it gives me more time to concentrate on the real problem I have to solve. And I am really sorry for you if you have already given up hope that programming languages could be easier.	[reply]
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Re^8: How to look for two different file extensions? by 1nickt (Canon) on Mar 10, 2017 at 00:17 UTC
Your code is no closer to English than `say $_ if $_ =~ /(2\|3\|5\|8)/;` [download] But even if the beginner found it for some reason more like the aforementioned European language, in which, it is to be assumed in your scenario, he has great fluency, please explain again why would it be a good idea for him to learn that syntax, which doesn't work in the language he is (a) asking about and (b) hoping to use to accomplish an actual task? And people say I have an agenda! The way forward always starts with a minimal test.	[reply] [d/l]
Re^9: How to look for two different file extensions? by jdporter (Paladin) on Mar 10, 2017 at 20:43 UTC
To paraphrase the old proverb: "It doesn't matter whether it's 'closer to English' if it gives the wrong answer."	[reply]
Re^9: How to look for two different file extensions? by Your Mother (Archbishop) on Mar 15, 2017 at 21:19 UTC
Needs ^anchors$ if these are to be `==` matches. :P	[reply] [d/l]
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Re^7: How to look for two different file extensions? by demerphq (Chancellor) on Mar 23, 2017 at 19:40 UTC
There is always more than one way to do it. That doesn't mean every post should contain all of them. In particular throwing out a regexp with non-basic syntax but no explanation doesn't seem like it will make things clearer for the novice. There are regexes in the OP's code, and regexes are a pretty core part of "thinking perl", so i think /AN/ answer including regex would be useful. But at the same time, how helpful is it to complain about someone elses answer like that? Why not just make a post with an explanation? Anyway. So heres an explanation: `$FileExt =~/ # "file extension matches ...." \A # the start of the variable \. # match a literal dot (?: # begin a set of options foo # the option itself \| # OR bar # another option ) # end of option group \z # end of variable /x; # end of pattern, enable comments in the r +egex` [download] --- $world=~s/war/peace/g	[reply] [d/l]