Perl is 26 Today

Post by __david__ » Thu, Dec 19, 2013, 9:09 PM UTC

eCa wrote: post #64

lmm wrote: post #23

Earlier quoted context omitted.

Interesting. What does Python make harder? In Perl I find myself missing list comprehensions, shared-by-default threading, a well-integrated object system, and a comprehensive, integrated, popular web framework. (Also a standard way of doing event-driven programming, but that's a fair criticism of Python too). And while I'm sure the tooling functionality is there, everything just seems less obvious and standard (e.g.…

There will most likely never be an integrated web framework [0] or a standard way of event-driven programming. There's more than one way. I think Perlbrew [1] is closest to virtualenv. [0] But there is Mojolicious, Dancer, Catalyst, etc [1] http://perlbrew.pl/

Post by kbenson » Thu, Dec 19, 2013, 9:16 PM UTC

bonemachine wrote: post #168

kbenson wrote: post #161

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This is because it is by no means obvious as to which of the more "active" parts of the original expression Isn't it? If someone told you, really you to do just that, would you actually have a problem carrying out that command given a way to print something, a container, and a value to check against the container contents? Also, here's me preference: say $x if $x and $x > 5; Need to catch zero? say $x if defined $x a…

If someone told you, really you to do just that, The problem here is that's just one way (in linguistics: "voice") in which the statement can be parsed. Another way is to look at it mathematically: print where expr := x if x > 5 which of course has an entirely different meaning. What compounds the difficulty is that in general it's really difficult to anticipate all of these syntactical corner cases through a careful…

   Statement Modifiers
       Any simple statement may optionally be followed by a SINGLE modifier, just before the terminating semicolon (or block ending).  The possible modifiers are:

           if EXPR
           unless EXPR
           while EXPR
           until EXPR
           when EXPR
           for LIST
           foreach LIST

Post by [deleted] » Thu, Dec 19, 2013, 9:23 PM UTC

kbenson wrote: post #161

bonemachine wrote: post #144

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Unfortunately -- and this is one of the many "banana peels" in Perl 5 -- even a simple statement like print x if x > 5 is problematic in p5 for a whole bunch of reasons: (1) At a bare minimum, what you really need to say is: print "$x\n" if $x > 5; That extra "\n" is a definite turn-off to a lot of people when the get their very first look at Perl. Really, the default these days should be more "say"-like. Of course,…

This is because it is by no means obvious as to which of the more "active" parts of the original expression Isn't it? If someone told you, really you to do just that, would you actually have a problem carrying out that command given a way to print something, a container, and a value to check against the container contents? Also, here's me preference: say $x if $x and $x > 5; Need to catch zero? say $x if defined $x a…

Post by acqq » Thu, Dec 19, 2013, 9:43 PM UTC

bonemachine wrote: post #144

garrettdreyfus wrote: post #28

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I first looked at perl last week and also shared your sentiment. At first when I saw perl I was aghast. The "ugly" $%@ syntax seemed pointless and unreadable. Then I decided to take a look at a non-beginner book, Intermediate Perl http://it-ebooks.info/book/879/ . I was surprised and excited 50 pages in because I realized that Perl had a wealth of tricks , and that that "ugly" $%@ syntax actually had some cool reperc…

Unfortunately -- and this is one of the many "banana peels" in Perl 5 -- even a simple statement like print x if x > 5 is problematic in p5 for a whole bunch of reasons: (1) At a bare minimum, what you really need to say is: print "$x\n" if $x > 5; That extra "\n" is a definite turn-off to a lot of people when the get their very first look at Perl. Really, the default these days should be more "say"-like. Of course,…

Post by Mithaldu » Thu, Dec 19, 2013, 10:27 PM UTC

nailer wrote: post #178

Mithaldu wrote: post #170

Earlier quoted context omitted.

I just told you that i exactly did not want you do to that: > I was hoping to get you to be creative and come up with your own problem/solution pairs. :) Also: http://www.youtube.com/watch?feature=player_detailpage&v=R5F... https://dl.dropboxusercontent.com/u/10190786/your_perl_on_dr... Both done in realtime in Perl. Also, oh god, all that stuff you edited into the reply before that one about LARTing and whatever, yo…

>>> I was hoping to get you to be creative and come up with your own problem/solution pairs. >> You wanted me to come up with a scenario like gaming graphics pipelines in a discussion of Perl, a language primarily used for Unix scripting tasks? > I just told you that i exactly did not want you do to that: "I was hoping to get you to be creative and come up with your own problem/solution pairs." Christ.