Re: about binary protocol porting

[Shlomi Fish]

Hi Jon,

On Wed, 29 Dec 2021 09:31:47 +0800
Jon Smart  wrote:

> I plan to port a binary protocol client to perl6/raku.
> I have zero experience on this. Where should I get started?
> 
> Thanks.

no experience either but try https://docs.raku.org/type/IO::Socket::INET and
https://duckduckgo.com/?q=raku+sockets=v140-1=web . 

-- 

Shlomi Fish   https://www.shlomifish.org/
https://shlomifishswiki.branchable.com/Self-Sufficiency/

To have bugs is human; to fix them — divine.
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Re: how do I turn a real into and array of Integers?

[Shlomi Fish]

Hi all!

On Sun, 31 Oct 2021 15:14:07 +0800
Alice  wrote:

> Hello
> 
> Try this one:
> 
> use strict;
> 
> use Data::Dumper;
> 
> 
> my $x = sqrt 2;
> 
> my @li= grep{/\d+/} split//,$x;
> 
> 
> print Dumper \@li;
> 

Or in raku:

> ("" ~ sqrt(2)).comb().grep(* ne ".").map(+*)
(1 4 1 4 2 1 3 5 6 2 3 7 3 0 9 5 1)

> 
> 
> $ perl t1.pl
> 
> $VAR1 = [
> 
>   '1',
> 
>   '4',
> 
>   '1',
> 
>   '4',
> 
>   '2',
> 
>   '1',
> 
>   '3',
> 
>   '5',
> 
>   '6',
> 
>   '2',
> 
>   '3',
> 
>   '7',
> 
>   '3',
> 
>   '1'
> 
> ];
> 
> 
> Regards
> 
> Alice
> 
> On Sun, Oct 31, 2021 at 2:58 PM ToddAndMargo via perl6-users <
> perl6-users@perl.org> wrote:
> 
> > Hi All,
> >
> > Without going into why (it is a secret), how do I turn
> >  
> >  > my $x = sqrt 2  
> > 1.4142135623730951
> >
> > into an array of integers?
> > @y[0] = 1
> > @y[1] = 4
> > @y[2] = 1
> > @y[3] = 4
> > @y[4] = 2
> > @y[5] = 1
> >
> > etc.
> >
> >
> > Many thanks,
> > -T
> >
> >
> >  



-- 

Shlomi Fish   https://www.shlomifish.org/
https://www.shlomifish.org/open-source/projects/fortune-mod/

Summer Glau gave Richard III a horse free-of-charge and let him keep his
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Re: List name and raku installation options

[Shlomi Fish]

Hi Parrot!

On Sun, 27 Sep 2020 13:28:20 -0400
Parrot Raiser <1parr...@gmail.com> wrote:

> As I was about to post my other question, it occurred to me that
> perhaps we should have a raku-users list, (and corresponding ones for
> the other, formerly perl6-flavoured lists?
> 
> And now for the actual question. I'm experimenting with installing
> Raku on an ARM machine, (specifically a PineBook Pro).
> Is there any way I can indicate to the download, especially "make"
> that it has 6 cores with which to play.
> 

Can you use GNU make's "-j" / "--jobs" flag:

https://www.gnu.org/software/make/manual/make.html#Parallel

Or did I misunderstand what you wish to achieve?

> (It seemed to speed up experiments on a Raspberry Pi with an earlier
> format of the download, where it was possible to change the make
> command.)



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Re: Eject flash drive in Windows?

[Shlomi Fish]

Hi Todd!

On Tue, 22 Sep 2020 20:33:47 -0700
ToddAndMargo via perl6-users  wrote:

> Hi All,
> 
> Anyone write any code to eject a flash drive in Windows?
> 

A duckduckgo search led me to this page:

https://stackoverflow.com/questions/85649/safely-remove-a-usb-drive-using-the-win32-api

Hope that helps!

> Many thanks,
> -T



-- 

Shlomi Fish   https://www.shlomifish.org/
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Only two things are infinite: the universe, and Chuck Norris’s destruction
ability. And we cannot be sure about the former thanks to the latter.
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Re: perl streaming framework

[Shlomi Fish]

Hi Warren!

On Wed, 15 Jul 2020 08:43:33 +0800
Warren Pang  wrote:

> Thank you all very much.
> 
> I have tried to search "perl discussion" and it brings me to perl6's list
> page.
> Yes for data analysis we primarily use classic perl5, which is smart enough
> especially the regex matching.
> There are "spark streaming", "flink streaming", "storm streaming", and a
> lot of others, but they don't support perl language well.
> So I expect the community, either perl6 or perl5, can make that a framework.

"Perl 6" is now called Raku and is not compatible with Perl 5.

Regarding "the community" making something - I recall a similar request (or was
it a demand?) on a Perl facebook group that we must have a
https://en.wikipedia.org/wiki/Massive_open_online_course (MOOC) for Perl. As
usual with FOSS, time consuming suggestions can be materialised either by
investing time, or by motivating contributors using money. Otherwise, they
often don't get materialised.

> We can't lose the capability in big data, cloud computing, AI, ML,
> streaming, these are the main features of current internet.

From what I know, not everyone is doing AI (which I was told requires a
relevant M.Sc and has a high barrier to entry) and "machine learning" is not
the only approach to AI:

https://fc-solve.shlomifish.org/faq.html#machine_learning

> Everyone today writes CGI with perl? NO.
> 

Not everyone today writes CGI scripts, or uses Perl for them, but some people
still do. These include me because I prefer to use shared web hosting, where,
for server side scripting, I can use either PHP (which I dislike, see:
https://www.shlomifish.org/open-source/anti/php/ ) or CGI scripts (in Perl or
Python or similar). So I still use two such scripts in Perl and one which I
translated from Perl to Python (not because I was unhappy with the Perl code,
but because I've been trying to learn Python better) along with many
generated static pages and assets here:

* https://www.shlomifish.org/meta/site-source/

I was once told that generated static HTML should be avoided because PHP is the
present and the future, but it seems they were proven wrong too:

*
https://github.com/shlomif/shlomif-tech-diary/blob/master/static-site-generators--despair.md

I'm not saying server-side-scripting is not useful, but generated static sites
are still of utility as well.

> Thanks.



-- 

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“Stop reinventing wheels, start building space rockets.”
— The motto of the Comprehensive Perl Archive Network

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Re: perl streaming framework

[Shlomi Fish]

Hi Warren,

On Tue, 14 Jul 2020 16:54:49 +0800
Warren Pang  wrote:

> Hello
> 
> We are already using perl PDL and something similar.
> The streaming framework is mainly used for real time data analysis.
> Tyler from Apache Beam project has wrote a great book about streaming
> system:
> http://streamingsystems.net/
> So I have interest to know if there is the perl implementation for that.
> 

I think I get the general idea. You can try bridging perl 5 to Java, Python, or
whatever's APIs using the Inline::* modules such as
https://metacpan.org/pod/distribution/Inline-Java/lib/Inline/Java.pod
. Some of them work fairly well from my experience (caveat: I currently
comaintain
Inline-Ruby:
https://metacpan.org/pod/distribution/Inline-Ruby/lib/Inline/Ruby.pod
)

> Thank you.
> 
> 
> 
> On Tue, Jul 14, 2020 at 3:39 PM Shlomi Fish  wrote:
> 
> > Hi Warren!
> >
> > Please reply to list.
> >
> > On Tue, 14 Jul 2020 10:34:57 +0800
> > Warren Pang  wrote:
> >  
> > > Hi
> > >
> > > Does perl have a stream computing framework?
> > > I know Java/python have many, such as spark, flink, beam etc.
> > > But I am looking for a perl alternative, since most of our team members
> > > have been using perl for data analysis.
> > >  
> >
> > 1. Do you want one for Raku which was formerly known as "Perl 6" (see
> > https://en.wikipedia.org/wiki/Raku_(programming_language) ) or for "perl
> > 5"?
> >
> > 2. What do you mean by "stream computing framework"? Is there a
> > wikipedia/etc.
> > page for them?
> >
> > 3. Can you link to some examples?
> >
> > 4. Do you mean something like http://pdl.perl.org/ (or numpy for python)?
> >
> >  
> > > Thank you.  
> >
> >
> >
> > --
> >
> > Shlomi Fish   https://www.shlomifish.org/
> > Why I Love Perl - https://shlom.in/joy-of-perl
> >
> > The reason the Messiah has not come yet, is because Chuck Norris keeps
> > finding
> > faults in God’s plan for his coming.
> > — https://www.shlomifish.org/humour/bits/facts/Chuck-Norris/
> >
> > Please reply to list if it's a mailing list post - https://shlom.in/reply
> > .
> >  



-- 

Shlomi Fish   https://www.shlomifish.org/
https://youtu.be/GoEn1YfYTBM - Tiffany Alvord - “Fall Together”

Selina: How may I be of service?
Alan: Well, according to the Codex, we’re supposed to be slain by you.
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Re: perl streaming framework

[Shlomi Fish]

Hi Warren!

Please reply to list.

On Tue, 14 Jul 2020 10:34:57 +0800
Warren Pang  wrote:

> Hi
> 
> Does perl have a stream computing framework?
> I know Java/python have many, such as spark, flink, beam etc.
> But I am looking for a perl alternative, since most of our team members
> have been using perl for data analysis.
> 

1. Do you want one for Raku which was formerly known as "Perl 6" (see
https://en.wikipedia.org/wiki/Raku_(programming_language) ) or for "perl 5"?

2. What do you mean by "stream computing framework"? Is there a wikipedia/etc.
page for them?

3. Can you link to some examples?

4. Do you mean something like http://pdl.perl.org/ (or numpy for python)?


> Thank you.



-- 

Shlomi Fish   https://www.shlomifish.org/
Why I Love Perl - https://shlom.in/joy-of-perl

The reason the Messiah has not come yet, is because Chuck Norris keeps finding
faults in God’s plan for his coming.
— https://www.shlomifish.org/humour/bits/facts/Chuck-Norris/

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Re: bash "."?

[Shlomi Fish]

Hi Todd!

On Fri, 15 May 2020 00:26:28 -0700
ToddAndMargo via perl6-users  wrote:

> On 2020-05-14 23:57, Shlomi Fish wrote:
> > The INI formats have no official (ISO/etc.) standard, and there are many
> > variations of them. See, for example, the various options that
> > https://metacpan.org/pod/Config::IniFiles  accepts (note that I comaintain
> > it now).
> >   
> >> I will be playing with them shortly.  I really want
> >> to see how CONFIG handles section titles.
> >>
> >> Thank you!
> >>
> >> -T  
> 
> # zef install Config::IniFiles
> ===> Searching for: Config::IniFiles  
> No candidates found matching identity: Config::IniFiles
> 

Sorry for the confusion, but https://metacpan.org/pod/Config::IniFiles is a
Perl 5 module. I have no plans of translating it to Raku, but it may be
accessible using a Perl5 <-> bridge. I just linked to it to illustrate the
point of how there are many variations on the theme of inifiles.

> 
> :'(  :'(  :'(



-- 

Shlomi Fish   https://www.shlomifish.org/
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Writing a BitKeeper replacement is probably easier at this point than getting
its license changed.
— Matt Mackall (who ended up writing a BitKeeper replacement)

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Re: bash "."?

[Shlomi Fish]

Hi Todd!

On Thu, 14 May 2020 14:40:49 -0700
ToddAndMargo via perl6-users  wrote:

> On 2020-05-14 08:22, Peter Pentchev wrote:
> > On Thu, May 14, 2020 at 04:39:18AM -0700, ToddAndMargo via perl6-users
> > wrote:  
> >> On 2020-05-13 22:27, Bruce Gray wrote:  
> >>>
> >>>  
> >>>> On May 13, 2020, at 9:37 PM, ToddAndMargo via perl6-users
> >>>>  wrote:
> >>>>
> >>>> Hi All,
> >>>>
> >>>> Do we have anything like Bash's "." statement where
> >>>> we can read in a bunch of values from a .cfg file?
> >>>> (I think it is called "include", but I am not sure.)
> >>>>
> >>>> . /etc/sysconfig/network-scripts/ifcfg-br0
> >>>>
> >>>> which populates these (and other) variables
> >>>>
> >>>> DEVICE=br0
> >>>> TYPE=Bridge
> >>>> ONBOOT=yes
> >>>> USERCTL=yes
> >>>> DELAY=0
> >>>> NM_CONTROLLED=yes
> >>>> BOOTPROTO=none
> >>>> PREFIX=24
> >>>> ...
> >>>>
> >>>> Many thanks,
> >>>> -T  
> >>>
> >>> Hi Todd,
> >>>
> >>> FYI, the `.` Bash command is also called `source`, which is easier to
> >>> search on the Web, and clearer in email: https://ss64.com/bash/source.html
> >>>
> >>> The closest equivalent in Raku is:
> >>>   https://docs.raku.org/routine/EVALFILE
> >>> , which could be used for config data like so:
> >>>   $ cat a.dat
> >>>   $foo = "bar";
> >>>   $baz = "quxx";
> >>>
> >>>   $ perl6 -e 'our ($foo, $baz); EVALFILE "a.dat"; .say for $foo,
> >>> $baz;' bar
> >>>   quxx
> >>>
> >>> , but please do not use it for this purpose.
> >>>
> >>> EVALFILE is in all-caps to show that it might be dangerous and not for
> >>> general use; it is “grep-able evil”, and could eval any valid Raku code,
> >>> even evil things like `run “rm -rf /“`.
> >>>
> >>> IMHO, Bash's `source`-style of loading variables pollutes the main
> >>> namespace and causes hard-to-debug “action at a distance”. In Raku (or
> >>> any other dynamic language), the use of some kind of Config module is
> >>> safer and cleaner: https://modules.raku.org/t/CONFIG
> >>> https://github.com/raku-community-modules/perl6-Config-JSON
> >>> https://github.com/Skarsnik/perl6-config-simple
> >>> https://metacpan.org/pod/Config::Tiny
> >>>
> >>> For example:
> >>>
> >>> $ cat config.json
> >>> {
> >>> "baz": "quxx",
> >>> "foo": "bar”
> >>> }
> >>> $ perl6 -e 'use Config::JSON; my %c; %c{$_} = jconf($_) for ;
> >>> say %c{$_} for ;' bar
> >>> quxx
> >>>
> >>> $ cat b.dat
> >>> foo = bar
> >>> baz = quxx
> >>> $ perl6 -e 'use Config::Tiny:from; my $conf =
> >>> Config::Tiny.read("b.dat"); .say for $conf<_>' bar
> >>> quxx
> >>>
> >>>
> >>> —
> >>> Hope this helps,
> >>> Bruce Gray (Util of PerlMonks)  
> >>
> >>
> >> Hi Bruce,
> >>
> >> I looked at the first two links above.  Neither showed
> >> the format of the data being read. But you did.  Is
> >> there some reason why the two links did not show the format?  
> > 
> > Well, they do both say they read .ini-style files. I think that they
> > will both be able to read simple key=value files like the network
> > definition sysconfig ones on RedHat-style systems that you seem to want.
> > Keep in mind that the shell probably interprets a bit more, so some
> > configuration-reading modules may e.g. return the quotes around the
> > value or something like that; take them for a spin and see.
> > Also, it's almost certain that these modules will not be able to help if
> > the files that you read make use of the fact that the shell performs
> > variable expansion: they will not be able to expand other variables in
> > lines like:
> > 
> > KEYFILE="/etc/keys/$HOSTNAME.key"
> > 
> > or something like that.
> > 
> > If you come across files like that, you may have to write your own
> > parser.
> > 
> > For some general information on ini-like files, see
> > https://en.wikipedia.org/wiki/INI_file
> > 
> > G'luck,
> > Peter
> >   
> 
> Hi Peter,
> 
> That was extremely helpful!  I never realized INI
> files were standardized.
> 

The INI formats have no official (ISO/etc.) standard, and there are many
variations of them. See, for example, the various options that
https://metacpan.org/pod/Config::IniFiles accepts (note that I comaintain it
now).

> I will be playing with them shortly.  I really want
> to see how CONFIG handles section titles.
> 
> Thank you!
> 
> -T



-- 

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Re: Dropbox and IO?

[Shlomi Fish]

On Tue, 7 Apr 2020 11:29:18 -0500
Stephen Wilcoxon  wrote:

> Dropbox on Windows is a real directory.  It is just monitored by the
> Dropbox software and files (or possibly pieces - not sure) are uploaded and
> downloaded when necessary to keep them in sync with the server.
> 

Thanks for the investigation and info, Stephen!

> On Tue, Apr 7, 2020 at 2:40 AM Simon Proctor 
> wrote:
> 
> > Ok I don't have access to my windows box until this evening. I'm mostly
> > used to using Dropbox on a Linux box where it's just a folder.
> >
> > Sorry for my mistake.
> >
> > On Tue, 7 Apr 2020 at 07:51, Shlomi Fish  wrote:
> >  
> >> Hi Simon,
> >>
> >> On Tue, 7 Apr 2020 06:55:00 +0100
> >> Simon Proctor  wrote:
> >>  
> >> > Don't see why not, Dropbox is just a folder that you should be able to
> >> > access as normal.
> >> >  
> >>
> >> Is it a higher-level folder or a bona-fide filesystem direcory:
> >>
> >> https://en.wikipedia.org/wiki/Directory_(computing)#Folder_metaphor
> >>
> >> If it is not visible to the filesystem, one may need higher level APIs
> >> other
> >> than fopen ( https://en.cppreference.com/w/c/io/fopen ) and friends.
> >>  
> >> > On Tue, 7 Apr 2020, 02:22 ToddAndMargo via perl6-users, <
> >> > perl6-users@perl.org> wrote:
> >> >  
> >> > > Hi All,
> >> > >
> >> > > Do any of you using Windows and Dropbox know
> >> > > if Raku's file IO utilities can both read
> >> > > and write to a Drop Box drive?
> >> > >
> >> > > Many thanks,
> >> > > -T
> >> > >  
> >>
> >>
> >>
> >> --
> >>
> >> Shlomi Fish   https://www.shlomifish.org/
> >> https://www.shlomifish.org/open-source/resources/tech-tips/
> >>
> >> How many “one-liners” do I actually write? I don’t know; maybe a couple
> >> dozen
> >> a day. But I guess I must be unusual, because as we all know, AWK was a
> >> complete failure and vanished into obscurity since it didn’t address
> >> anyone’s
> >> real needs. (That was sarcasm.) — “Twelve Views of Mark Jason Dominus”
> >>
> >> Please reply to list if it's a mailing list post - https://shlom.in/reply
> >> .
> >>  
> >
> >
> > --
> > Simon Proctor
> > Cognoscite aliquid novum cotidie
> >
> > http://www.khanate.co.uk/
> >  



-- 

Shlomi Fish   https://www.shlomifish.org/
List of Portability Libraries - https://shlom.in/port-libs

Chuck Norris can become root on OpenBSD. By using nothing but /bin/echo.
(By: ZadYree and Shlomi Fish)
— https://www.shlomifish.org/humour/bits/facts/Chuck-Norris/

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Re: How to read a web page?

[Shlomi Fish]

Hi Todd!

On Tue, 7 Apr 2020 02:15:13 -0700
ToddAndMargo via perl6-users  wrote:

> How do I read (download) a web page?  get?

See https://github.com/raku-community-modules/raku-lwp-simple and
https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ_with_ToC__generated.md#how-can-i-write-code-to-perform-operations-on-web-sites-for-me-that-otherwise-should-be-done-manually
.

Note that there are many file types and formats that can be found on the WWW
and downloaded using HTTP/HTTPS.



-- 

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Barth's Distinction:  There are two types of people: those who divide people
into two types, and those who don't.
— via fortune-mod.

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Re: Dropbox and IO?

[Shlomi Fish]

Hi Simon,

On Tue, 7 Apr 2020 06:55:00 +0100
Simon Proctor  wrote:

> Don't see why not, Dropbox is just a folder that you should be able to
> access as normal.
> 

Is it a higher-level folder or a bona-fide filesystem direcory:

https://en.wikipedia.org/wiki/Directory_(computing)#Folder_metaphor

If it is not visible to the filesystem, one may need higher level APIs other
than fopen ( https://en.cppreference.com/w/c/io/fopen ) and friends.

> On Tue, 7 Apr 2020, 02:22 ToddAndMargo via perl6-users, <
> perl6-users@perl.org> wrote:
> 
> > Hi All,
> >
> > Do any of you using Windows and Dropbox know
> > if Raku's file IO utilities can both read
> > and write to a Drop Box drive?
> >
> > Many thanks,
> > -T
> >  



-- 

Shlomi Fish   https://www.shlomifish.org/
https://www.shlomifish.org/open-source/resources/tech-tips/

How many “one-liners” do I actually write? I don’t know; maybe a couple dozen
a day. But I guess I must be unusual, because as we all know, AWK was a
complete failure and vanished into obscurity since it didn’t address anyone’s
real needs. (That was sarcasm.) — “Twelve Views of Mark Jason Dominus”

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Re: irrational nubmer?

[Shlomi Fish]

Hi Todd!

On Wed, 26 Feb 2020 12:32:57 -0800
ToddAndMargo via perl6-users  wrote:

> On 2020-02-26 12:14, Tobias Boege wrote:
> > On Wed, 26 Feb 2020, ToddAndMargo via perl6-users wrote:  
> >>>> $ p6 'say (99/70).base-repeating();'
> >>>> (1.4 142857)
> >>>>
> >>>> means that 142857 also repeats (it does not), but
> >>>> that it is best it can figure out with the precision
> >>>> it has?
> >>>>  
> >>>
> >>> What are you talking about? It does repeat. I suggest you take a piece
> >>> of paper and compute the decimal digits of 99/70 by hand until you are
> >>> convinced that it is 1.4 and then an endless stream of 142857 repeating.  
> >>
> >> I used gnome calculator to 20 digits:
> >>  665857/470832
> >>  1.41421356237468991063
> >> Sorry.  Not seeing any repeating patterns.
> >>  
> > 
> > Todd, you were asking about 99/70, so I answered you about 99/70.
> > I even quoted it. Now you come with 665857/470832. For that number,
> > you will see the repetition after about 580 decimal digits.
> >   
> >> Here is NAS doing it to 1 million digits (they have too
> >> much time on their hands):
> >>  https://apod.nasa.gov/htmltest/gifcity/sqrt2.1mil
> >> No repeats.
> >>
> >> So why does base-repeating tell me there is a repeating
> >> pattern when there is not?
> >>  
> > 
> > Sigh. We already settled that Rat and Num in Raku are rational numbers
> > and that √2 is an irrational number. So what can you definitely not apply
> > the base-repeating method to in Raku? -- The honest value of √2.
> > 
> > NASA apparently computed the first million digits of √2 and you see no
> > repeated digits. Good. In fact a real number is irrational if and only
> > if its decimal expansion has no repeating pattern. You can view this as
> > a reason for why they are not super easy to deal with on a computer.
> > 
> > But that has nothing to do with the numbers we looked at above. Those were
> > obviously rational numbers. They were obviously different from √2 because
> > that number is not rational -- and we were looking at rational numbers.
> > We were looking at rational numbers close to √2. What makes you think that
> > NASA computing digits of the number √2 has any bearing on the correctness
> > of `(99/70).base-repeating`? Because √2 and 99/70 are obviously not the
> > same number.
> > 
> > We are not working out the decimal expansion of √2. We are working out
> > decimal expansions of rational numbers close to, but different from, √2.
> > Even though they are close, structural properties of the expansions,
> > like the existence of a repeating pattern, are radically different.
> >   
> >> Ah ha, 99/70 does have a repeat:
> >> 1.4142857 142857 142857 1
> >>
> >> Maybe 665857/470832 I just do not go out enough digits to
> >> see a repeat.
> >>
> >> √2 does not repeat though, but I am thinking that
> >> I am stretching the poor machines abilities a bit too far
> >> and that is where the repeat comes from
> >>
> >> $ p6 'say sqrt(2).Rat.base-repeating();'  
> >>>> (1.4
> >>>> 14213197969543147208121827411167512690355329949238578680203045685279187817258883248730964467005076)
> >>>>  
> >>
> >> So, with the technology on hand, the approximation of √2
> >> does have a repeating pattern of
> >>
> >> 14213197969543147208121827411167512690355329949238578680203045685279187817258883248730964467005076
> >>
> >> (And in engineering terms, is meaningless)
> >>  
> > 
> > Yes, √2 has no repeating decimal pattern and the repetition returned to
> > you is the one of the rational approximation to √2 that Raku computed
> > when you asked for `sqrt(2).Rat`.
> > 
> > (Somehow it seems like you understood halfway through writing your
> > response but decided to keep the first half anyway. I don't know why.)
> >   
> >>>> And what are the unboxing rules for (665857/470832)?
> >>>>  
> >>>
> >>> No idea what you mean.  
> >>
> >> When is <665857/470832> unboxed to a Real number to
> >> operate on it?  Or is it never unboxed?
> >>  
> > 
> > I'm no boxing expert, but I know that Rat has high-level arithmetic
> > defined for it and there is no native rational type to unbox to.
> > That would have to go through N

Re: My keeper on IO

[Shlomi Fish]

Hi Todd,

On Sat, 29 Feb 2020 18:05:42 -0800
ToddAndMargo via perl6-users  wrote:

> Hi All,
> 
> I have written a keep on file IO.  I have it open
> whenever I am doing IO.  It is very useful.
> 
> It is 173 line long, so I won't flood the mailing
> list with it, but if anyone want to see it,
> I will eMail it to you.
> 

There are other options for sharing files online - pastesites, github, etc:

https://github.com/shlomif/how-to-share-code-online

Note that it'd be preferable for it to be licensed under a free cultural work
licence:

* https://creativecommons.org/share-your-work/public-domain/freeworks/

*
https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ_with_ToC__generated.md#i-want-to-release-my-code---which-open-source-licence-should-i-use

Thanks!


> :-)
> 
> -T



-- 

Shlomi Fish   https://www.shlomifish.org/
First stop for Perl beginners - https://perl-begin.org/

HP/UX is not a UNIX, and AIX is even less of it than that.
— An Israeli Open Source Software Enthusiast.

Please reply to list if it's a mailing list post - http://shlom.in/reply .

Re: perl6 vs ruby

[Shlomi Fish]

Hi Kristopher,

welcome aboard.

On Sat, 29 Feb 2020 15:14:15 +0800
Kristopher  wrote:

> Hello,
> 
> This is Kristopher from Japan.
> We have ruby language, which I have been using on work for years.
> Now I take a rough watch on perl6 language.
> Can you tell me what are the main difference between perl6 and ruby?

I presume there are many differences between them. Perhaps you should peruse
this doc: https://docs.perl6.org/language/rb-nutshell .

> Is perl6 good at BIO?
>

do you mean https://en.wikipedia.org/wiki/Bioinformatics ?
 
> Thank you.



-- 

Shlomi Fish   https://www.shlomifish.org/
https://www.shlomifish.org/humour/bits/New-versions-of-the-GPL/

Chuck Norris had a problem so he decided to use regular expressions. Now,
all the World’s problems are solved.
— http://www.shlomifish.org/humour/bits/facts/Chuck-Norris/

Please reply to list if it's a mailing list post - http://shlom.in/reply .

Re: irrational nubmer?

[Shlomi Fish]

On Thu, 20 Feb 2020 16:27:27 -0800
William Michels  wrote:

> On Thu, Feb 20, 2020 at 2:25 PM ToddAndMargo via perl6-users
>  wrote:
> >
> > On 2020-02-19 23:21, Shlomi Fish wrote:  
> > > Hi Paul,
> > >  
> >  
> > > Well, it is not unthinkable that a
> > > https://en.wikipedia.org/wiki/Computer_algebra_system (CAS)-like system
> > > will be able to tell that the abstract number sqrt(2) is irrational, as
> > > well as some derivative numbers such as 3 + sqrt(2). E.g:  
> >
> > Hi Shlomi,
> >
> > Those "academic exercises" where enterprising college
> > students run pi out to a bazillion digits to see if they
> > can find a repeating patterns came up with some
> > way of handling an "unbounded" number.  A "Real" (Cap R)
> > perhaps?
> >
> > -T  
> 
> You can identify repeating patterns in decimal fractions using the
> method "base-repeating":
> 
> mbook:~ homedir$ perl6 -e 'say (1/7).base-repeating();'
> (0. 142857)
> mbook:~ homedir$ perl6 -e 'say (1/7).base-repeating(10);'
> (0. 142857)
> mbook:~ homedir$ perl6 -e 'say (1/7).base-repeating(10).perl;'
> ("0.", "142857")
> mbook:~ homedir$ perl6 -e 'say (5/2).base-repeating(10).perl;'
> ("2.5", "")
> mbook:~ homedir$
> 
> According to the Raku docs, "If no repetition occurs, the second
> string is empty... ."
> And the docs say: "The precision for determining the repeating group
> is limited to 1000 characters, above that, the second string is ???."
> https://docs.raku.org/type/Rational#method_base-repeating
> 
> HTH, Bill.
> 
> PS For those following along at home--unless it's been added since
> Rakudo 2019.07--I don't see the "is_irrational()" function in the Raku
> language referred to by Shlomi Fish. Or maybe I/we was/were to
> understand that there isn't an "is_irrational()" function in the Raku
> language as of yet.
> 

Hi,

just for the record - I was not talking about Raku, just about a hypothetical
language with CAS-like capabilities (see
https://en.wikipedia.org/wiki/Computer_algebra_system ) that would be able to
do it. I was just using Raku-like syntax for familiarity. I am aware that the
functionality is not built in in Raku.

> https://stackoverflow.com/questions/42302488/identify-a-irrational-or-complex-number
> https://mathoverflow.net/questions/91915/detecting-recognizing-irrational-number-by-computers
> https://reference.wolfram.com/language/guide/ContinuedFractionsAndRationalApproximations.html
> https://www.wolframalpha.com/examples/mathematics/numbers/irrational-numbers/
> https://www.wolframalpha.com/examples/mathematics/number-theory/continued-fractions/

Re: irrational nubmer?

[Shlomi Fish]

Hi Paul,

On Thu, 20 Feb 2020 00:22:34 -0500
Paul Procacci  wrote:

> If you wouldn't mind, please stop referring things as being "magical".
> There's nothing magical about Raku/Perl6 other than the devs that put in
> their time to give you that perception.
> They are to be commended for their time and effort.
> 
> Also, being condescending as in "he gave up" is uncalled for.
> 
> It's an IMPOSSIBILITY using today's technology to tell you whether a number
> is irrationalperiod.

Well, it is not unthinkable that a
https://en.wikipedia.org/wiki/Computer_algebra_system (CAS)-like system will be
able to tell that the abstract number sqrt(2) is irrational, as well as some
derivative numbers such as 3 + sqrt(2). E.g:

```
> my $num = sqrt(2);
> say $num.is_irrational()
True
```

It won't be able to give its exact value, but may still be able to reason about
it.

-- 

Shlomi Fish   https://www.shlomifish.org/
Perl Elems to Avoid - https://perl-begin.org/tutorials/bad-elements/

The cool thing about Vim is — you find something interesting with every typo.
— Su‐Shee on Freenode’s #perl .

Please reply to list if it's a mailing list post - http://shlom.in/reply .

Re: How do I contact the moderator?

[Shlomi Fish]

Hi Todd,

On Mon, 10 Feb 2020 19:25:50 -0800
ToddAndMargo via perl6-users  wrote:

> Hi All,
> 
> I have been getting a strange eMail on this group.
> How do I contact the moderator to check and see
> if it is a scam?
> 

I think you should send an email to perl6-users-ow...@perl.org .

> Many thanks,
> -T



-- 

Shlomi Fish   https://www.shlomifish.org/
https://github.com/shlomif/Freenode-programming-channel-FAQ

  Khisanth =~ s/must sleep/must give Botje all my money/ .
— Freenode’s #perl

Please reply to list if it's a mailing list post - http://shlom.in/reply .

Re: My Windows Modules

[Shlomi Fish]

Hi Todd!

On Mon, 20 Jan 2020 22:20:29 -0800
ToddAndMargo via perl6-users  wrote:

> Hi All,
> 
> I have my Win API modules to the point I
> like them now.  I will be a few months
> before I get them up on GIT.
> 

You should already be using version control (git, likely):

https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ_with_ToC__generated.md#what-are-some-best-practices-in-programming-that-i-should-adopt

(short URL - https://is.gd/kUMG3s )

> If anyone wants to look at them now, I will
> vpaste.net them for you.
> 

I will only look at them if they are FOSS:

https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ_with_ToC__generated.md#i-want-to-release-my-code---which-open-source-licence-should-i-use

(short URL - https://is.gd/1gzZB6 )

Regards,

Shlomi
> :-)
> 
> -T



-- 

Shlomi Fish   https://www.shlomifish.org/
“So, who the hell is Qoheleth?” - https://shlom.in/qoheleth

JATFM == “Just answer the fabulous man”

Please reply to list if it's a mailing list post - http://shlom.in/reply .

Re: Once again - You say one thing and do another Re: Bug to report: cardinal called an integer

[Shlomi Fish]

Hi Todd,

On Fri, 17 Jan 2020 04:06:10 -0800
Todd Chester via perl6-users  wrote:

> On 2020-01-17 00:12, Veesh Goldman wrote:
> > he's finally looked into making pull requests.  
> 
> Do you have a link to the pull requests for
> the documentation?  I'd like to add some examples
> to a few pages.

See https://github.com/Raku/doc/pulls . Good luck!

-- 

Shlomi Fish   https://www.shlomifish.org/
https://github.com/shlomif/shlomif-computer-settings/ - my dotfiles

There’s no point in keeping an idea to yourself since there’s a 10 to 1 chance
that somebody already has it and will share it before you.
— http://www.shlomifish.org/humour.html

Please reply to list if it's a mailing list post - http://shlom.in/reply .

Re: Stack Exchange

[Shlomi Fish]

Hi,

On Tue, 24 Dec 2019 15:24:56 +0300
İsmail Arılık  wrote:

> I intentionally sent previous email to you because I thought it is
> unrelated with the original post and didn't want to bother other guys.

I see. In that case the sensible thing to do is to write "[sent in private]" so
I'll know it is intentional see:

https://www.shlomifish.org/meta/FAQ/#reply_to_list

> 
> I am looking your essays, thanks a lot.
> 

Thanks! Feel free to let me know what you think.

> Shlomi Fish , 24 Ara 2019 Sal, 15:01 tarihinde şunu
> yazdı:
> 
> > On Tue, 24 Dec 2019 14:33:28 +0300
> > İsmail Arılık  wrote:
> >  
> > > Thanks but Christmas is not a holiday for us. =)
> > >  
> >
> > Hi Ismail! You can try making "reply to all" the default.
> >
> > Anyway, we don't celebrate Christmas but we celebrate
> > https://en.wikipedia.org/wiki/Hanukkah (being Jewish and all).
> >
> > BTW, regarding this gh repo of yours -
> > https://github.com/it-is-enough/what-is-good-software - you may be
> > interested
> > in these essays i wrote:
> >
> > *
> > https://www.shlomifish.org/philosophy/computers/high-quality-software/rev2/
> >
> > *
> >
> > https://github.com/shlomif/shlomi-fish-homepage/blob/master/lib/notes/quality-software--followup-2018.md
> >
> > Regards,
> >
> > Shlomi
> >  
> > > Shlomi Fish , 24 Ara 2019 Sal, 14:25 tarihinde  
> > şunu  
> > > yazdı:
> > >  
> > > > On Tue, 24 Dec 2019 13:39:26 +0300
> > > > İsmail Arılık  wrote:
> > > >  
> > > > > Hi Shlomi, it is not an issue now. =)
> > > > >  
> > > >
> > > > Thanks for the quick fix! Happy holidays.
> > > >  
> > > > > Shlomi Fish , 24 Ara 2019 Sal, 13:29  
> > tarihinde  
> > > > şunu  
> > > > > yazdı:
> > > > >  
> > > > > > Hi Ismail!
> > > > > >
> > > > > > When trying to access your homepage in your signature:
> > > > > > https://ismailarilik.com/ I got this 404:
> > > > > >
> > > > > > «
> > > > > >
> > > > > > 404
> > > > > >
> > > > > > There isn't a GitHub Pages site here.
> > > > > >
> > > > > > If you're trying to publish one, read the full documentation to  
> > learn  
> > > > how  
> > > > > > to
> > > > > > set up GitHub Pages for your repository, organization, or user  
> > account.  
> > > > > > GitHub
> > > > > > Status — @githubstatus
> > > > > >
> > > > > > »
> > > > > >
> > > > > > Please restore your site.
> > > > > >
> > > > > > Regards,
> > > > > >
> > > > > > Shlomi
> > > > > >
> > > > > > On Tue, 24 Dec 2019 11:00:44 +0300
> > > > > > İsmail Arılık  wrote:
> > > > > >  
> > > > > > > From: İsmail Arılık 
> > > > > > > To: ToddAndMargo 
> > > > > > > Cc: perl6-users@perl.org
> > > > > > > Subject: Re: Stack Exchange
> > > > > > > Date: Tue, 24 Dec 2019 11:00:44 +0300
> > > > > > >
> > > > > > > Sorry, I have noticed that I clicked "Answer" button instead of  
> > > > "Answer  
> > > > > > > All" button and my email was only sent to ToddAndMargo. I am  
> > writing  
> > > > a  
> > > > > > copy  
> > > > > > > of my email below:
> > > > > > >  
> > > > > > > > The issues you mentioned is actually called community  
> > moderation  
> > > > and  
> > > > > > is  
> > > > > > > one of the most useful features of SO. It is the secret of  
> > clean,  
> > > > precise  
> > > > > > > and pointed posts and answers. And this provides higher ranking  
> > in  
> > > > the  
> > > > > > > search engine indices.
> > > > > > >  
> > > > > > > > I can recommend you to look at Reddit, Hacker News and Quora  
> > as  
> > > > > > > alternatives.
> > > > > > >
> > &

Re: Stack Exchange

[Shlomi Fish]

On Tue, 24 Dec 2019 14:33:28 +0300
İsmail Arılık  wrote:

> Thanks but Christmas is not a holiday for us. =)
> 

Hi Ismail! You can try making "reply to all" the default.

Anyway, we don't celebrate Christmas but we celebrate
https://en.wikipedia.org/wiki/Hanukkah (being Jewish and all).

BTW, regarding this gh repo of yours -
https://github.com/it-is-enough/what-is-good-software - you may be interested
in these essays i wrote:

* https://www.shlomifish.org/philosophy/computers/high-quality-software/rev2/

*
https://github.com/shlomif/shlomi-fish-homepage/blob/master/lib/notes/quality-software--followup-2018.md

Regards,

    Shlomi

> Shlomi Fish , 24 Ara 2019 Sal, 14:25 tarihinde şunu
> yazdı:
> 
> > On Tue, 24 Dec 2019 13:39:26 +0300
> > İsmail Arılık  wrote:
> >  
> > > Hi Shlomi, it is not an issue now. =)
> > >  
> >
> > Thanks for the quick fix! Happy holidays.
> >  
> > > Shlomi Fish , 24 Ara 2019 Sal, 13:29 tarihinde  
> > şunu  
> > > yazdı:
> > >  
> > > > Hi Ismail!
> > > >
> > > > When trying to access your homepage in your signature:
> > > > https://ismailarilik.com/ I got this 404:
> > > >
> > > > «
> > > >
> > > > 404
> > > >
> > > > There isn't a GitHub Pages site here.
> > > >
> > > > If you're trying to publish one, read the full documentation to learn  
> > how  
> > > > to
> > > > set up GitHub Pages for your repository, organization, or user account.
> > > > GitHub
> > > > Status — @githubstatus
> > > >
> > > > »
> > > >
> > > > Please restore your site.
> > > >
> > > > Regards,
> > > >
> > > > Shlomi
> > > >
> > > > On Tue, 24 Dec 2019 11:00:44 +0300
> > > > İsmail Arılık  wrote:
> > > >  
> > > > > From: İsmail Arılık 
> > > > > To: ToddAndMargo 
> > > > > Cc: perl6-users@perl.org
> > > > > Subject: Re: Stack Exchange
> > > > > Date: Tue, 24 Dec 2019 11:00:44 +0300
> > > > >
> > > > > Sorry, I have noticed that I clicked "Answer" button instead of  
> > "Answer  
> > > > > All" button and my email was only sent to ToddAndMargo. I am writing  
> > a  
> > > > copy  
> > > > > of my email below:
> > > > >  
> > > > > > The issues you mentioned is actually called community moderation  
> > and  
> > > > is  
> > > > > one of the most useful features of SO. It is the secret of clean,  
> > precise  
> > > > > and pointed posts and answers. And this provides higher ranking in  
> > the  
> > > > > search engine indices.
> > > > >  
> > > > > > I can recommend you to look at Reddit, Hacker News and Quora as  
> > > > > alternatives.
> > > > >
> > > > > ToddAndMargo via perl6-users , 24 Ara 2019  
> > Sal,  
> > > > 03:20  
> > > > > tarihinde şunu yazdı:
> > > > >  
> > > > > > On 2019-12-23 16:01, ToddAndMargo via perl6-users wrote:  
> > > > > > > it is not correcting my grammar
> > > > > > > that I find offensive  
> > > > > >
> > > > > >
> > > > > > And it is not just your grammar.  One of
> > > > > > the censors took out "Many thanks -T".  Now
> > > > > > that is just being frivolous.
> > > > > >  
> > > > >
> > > > >  
> > > >
> > > >
> > > >
> > > > --
> > > >
> > > > Shlomi Fish   https://www.shlomifish.org/
> > > > Optimising Code for Speed - https://shlom.in/optimise
> > > >
> > > > * Backward compatibility is your worst enemy.
> > > > * Backward compatibility is your users’ best friend.
> > > > — http://www.shlomifish.org/humour/fortunes/osp_rules.html
> > > >
> > > > Please reply to list if it's a mailing list post -  
> > http://shlom.in/reply .  
> > > >  
> > >
> > >  
> >
> >
> >
> > --
> >
> > Shlomi Fish   https://www.shlomifish.org/
> > My Aphorisms - https://www.shlomifish.org/humour.html
> >
> > I before E, except after C. We live in a weird society.
> > — Source unknown, via Nadav Har’El.
> >
> > Please reply to list if it's a mailing list post - http://shlom.in/reply .
> >  
> 
> 



-- 

Shlomi Fish   https://www.shlomifish.org/
List of Graphics Apps - https://shlom.in/graphics

Chuck Norris killed the fat lady before she could sing.
— http://www.shlomifish.org/humour/bits/facts/Chuck-Norris/

Please reply to list if it's a mailing list post - http://shlom.in/reply .

Re: Stack Exchange

[Shlomi Fish]

On Tue, 24 Dec 2019 13:39:26 +0300
İsmail Arılık  wrote:

> Hi Shlomi, it is not an issue now. =)
> 

Thanks for the quick fix! Happy holidays.

> Shlomi Fish , 24 Ara 2019 Sal, 13:29 tarihinde şunu
> yazdı:
> 
> > Hi Ismail!
> >
> > When trying to access your homepage in your signature:
> > https://ismailarilik.com/ I got this 404:
> >
> > «
> >
> > 404
> >
> > There isn't a GitHub Pages site here.
> >
> > If you're trying to publish one, read the full documentation to learn how
> > to
> > set up GitHub Pages for your repository, organization, or user account.
> > GitHub
> > Status — @githubstatus
> >
> > »
> >
> > Please restore your site.
> >
> > Regards,
> >
> > Shlomi
> >
> > On Tue, 24 Dec 2019 11:00:44 +0300
> > İsmail Arılık  wrote:
> >  
> > > From: İsmail Arılık 
> > > To: ToddAndMargo 
> > > Cc: perl6-users@perl.org
> > > Subject: Re: Stack Exchange
> > > Date: Tue, 24 Dec 2019 11:00:44 +0300
> > >
> > > Sorry, I have noticed that I clicked "Answer" button instead of "Answer
> > > All" button and my email was only sent to ToddAndMargo. I am writing a  
> > copy  
> > > of my email below:
> > >  
> > > > The issues you mentioned is actually called community moderation and  
> > is  
> > > one of the most useful features of SO. It is the secret of clean, precise
> > > and pointed posts and answers. And this provides higher ranking in the
> > > search engine indices.
> > >  
> > > > I can recommend you to look at Reddit, Hacker News and Quora as  
> > > alternatives.
> > >
> > > ToddAndMargo via perl6-users , 24 Ara 2019 Sal,  
> > 03:20  
> > > tarihinde şunu yazdı:
> > >  
> > > > On 2019-12-23 16:01, ToddAndMargo via perl6-users wrote:  
> > > > > it is not correcting my grammar
> > > > > that I find offensive  
> > > >
> > > >
> > > > And it is not just your grammar.  One of
> > > > the censors took out "Many thanks -T".  Now
> > > > that is just being frivolous.
> > > >  
> > >
> > >  
> >
> >
> >
> > --
> >
> > Shlomi Fish   https://www.shlomifish.org/
> > Optimising Code for Speed - https://shlom.in/optimise
> >
> > * Backward compatibility is your worst enemy.
> > * Backward compatibility is your users’ best friend.
> > — http://www.shlomifish.org/humour/fortunes/osp_rules.html
> >
> > Please reply to list if it's a mailing list post - http://shlom.in/reply .
> >  
> 
> 



-- 

Shlomi Fish   https://www.shlomifish.org/
My Aphorisms - https://www.shlomifish.org/humour.html

I before E, except after C. We live in a weird society.
— Source unknown, via Nadav Har’El.

Please reply to list if it's a mailing list post - http://shlom.in/reply .

Re: [ please ] request for perl machine learning utils development

[Shlomi Fish]

Hi,

[resending]

On Wed, 28 Aug 2019 16:47:10 +0800
Cloud Cache  wrote:

> Hi Elizabeth,
> 
> Thanks for the encouragement.
> I am not good at low level system development, just using the high-level 
> API from tensorflow/keras etc.
> So I hope there should have perl's framework appearing.
> 

See https://www.shlomifish.org/philosophy/psychology/elephant-in-the-circus/ -
some people seriously underestimate their own potential. You should also read
http://catb.org/~esr/writings/cathedral-bazaar/ which still has some solid
advice.

That put aside, given all the hype about machine learning, it seems that a new
https://en.wikipedia.org/wiki/AI_winter is forthcoming.

I agree with Liz that requests-for-implementations tend to linger on until
someone volunteers the time or makes a money offer. As Hillel put it:
https://www.brainyquote.com/quotes/rabbi_hillel_173085


> regards.
> 
> 
> on 2019/8/28 16:39, Elizabeth Mattijsen wrote:
> >> On 28 Aug 2019, at 08:23, Cloud Cache  wrote:
> >> Perl is for big data. Many operators in banks use perl to analyse data
> >> stuff. Many programmers in big companies use perl to do statistics from
> >> all kinds of logs.
> >>
> >> For me, I use perl everyday, for data gathering, data cleaning etc. I
> >> pretty like its Regex and flexibility for text parsing.
> >>
> >> But there is no mainstream machine learning frameworks by perl.
> >> I have to write codes with other languages and other frameworks to run ML
> >> tasks.
> >>
> >> Will please perl6 developers take part focus on development of ML tools
> >> and frameworks?  
> > 
> > Why don't you become a Perl 6 developer and work on that?  Than you can be
> > sure it will have the interface and behaviour that you want!
> > 
> >   
> >> I think there are many other perl people around the world expect this
> >> capability.  
> > 
> > If there were more people actually working on this, we would actually have
> > that capability.
> > 
> > 
> > 
> > Liz

Re: while(<>){...} analog?

[Shlomi Fish]

On Sat, 3 Aug 2019 00:05:20 -0700
William Michels  wrote:

> Dear Shlomi, Thank you for that StackOverflow link! --Bill.
> 

You're welcome. Thanks for replying to the list.


-- 
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Re: while(<>){...} analog?

[Shlomi Fish]

mple_echo lines.txt
> > > > >cat lines.txt | simple_echo
> > > > >
> > > > > The perl5 version would probably be:
> > > > >
> > > > >   #!/usr/bin/env perl
> > > > >   while(<>){
> > > > >  print;
> > > > >   }
> > > > >
> > > > > The perl6 version would be something like:
> > > > >
> > > > >   #!/usr/bin/env perl6
> > > > >   use v6;
> > > > >   for lines() {
> > > > >   say $_;
> > > > >   }
> > > > >
> > > > >
> > > > > The kind of thing I was playing with was:
> > > > >
> > > > >   #!/usr/bin/env perl6
> > > > >   use v6;
> > > > >   my @lines = $*ARGFILES.IO.lines;
> > > > >   say @lines;
> > > > >
> > > > > That works for lines from a file, but not from standard input, and
> > > > > the error message isn't tremendously helpful:
> > > > >
> > > > >   No such method 'lines' for invocant of type 'IO::Special'
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > On 7/28/19, Bruce Gray  wrote:  
> > > > > >
> > > > > >  
> > > > > >> On Jul 28, 2019, at 6:20 PM, Joseph Brenner 
> > > > > >> wrote:
> > > > > >>
> > > > > >> I was just wondering if there's some direct analog in perl6 to the
> > > > > >> perl5 construct:
> > > > > >>
> > > > > >>  while(<>){ ... }
> > > > > >>
> > > > > >> If I'm planning on passing a filename on the command-line, I can
> > > > > >> just get it out of $*ARGFILES easily enough, but what if I also
> > > > > >> wanted it to work on lines passed in via standard input?  
> > > > > >
> > > > > >
> > > > > > `lines` , as a sub instead of a method, and no arguments.
> > > > > >
> > > > > > See: https://docs.perl6.org/routine/lines#(Cool)_routine_lines
> > > > > >   Without any arguments, sub lines operates on $*ARGFILES,
> > > > > > which defaults to $*IN in the absence of any filenames.
> > > > > >
> > > > > > For example:
> > > > > >   perl6 -e 'say .join("\t") for lines().rotor(4);'
> > > > > > path/to/file.txt
> > > > > >
> > > > > > Hmmm. I would expect that to be in the Perl 5 to Perl 6 Migration
> > > > > > Guides, but I do not see it there.
> > > > > >
> > > > > > —
> > > > > > Hope this helps,
> > > > > > Bruce Gray (Util of PerlMonks)
> > > > > >
> > > > > >  



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Re: Start reading at a specific index?

[Shlomi Fish]

On Sat, 2 Feb 2019 01:08:39 -0800
ToddAndMargo via perl6-users  wrote:

> Hi All,
> 
> Is there a way to modify this to start reading at
> a specific index?  And include how many bytes (300)
> to read as well?
> 
>   my $FileHandle = open( $FileName, :bin, :ro );
>   my Buf $BinaryFile = $FileHandle.read( 300 );
> 
> Many thanks,
> -T

See https://docs.perl6.org/routine/seek .


-- 
-----
Shlomi Fish   http://www.shlomifish.org/
http://is.gd/i5eMQd - Emma Watson’s Interview for a Software Dev Job

Q2: Busy people are unproductive. We are very productive and so we’re never
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Re: [DFW.pm] Sad News

[Shlomi Fish]

Wow, that is sad. I remember talking to him (as "PerlJam") on IRC and
just remembered his long absence yesterday. He was a fun person to chat with.
RIP.

I'll see what I can do about adopting some of his modules and donating to his
family.

Regards,

    Shlomi Fish

P.S: there are some excerpts of IRC conversations with him (and with other
people) here if anyone is interested -
https://www.shlomifish.org/humour/fortunes/sharp-perl.html .

On Tue, 8 Jan 2019 10:42:11 -0600
Bruce Gray  wrote:

> > Begin forwarded message:
> > 
> > From: Matthew Musgrove via DFW-pm 
> > Subject: [DFW.pm] Sad News
> > Date: January 7, 2019 at 3:03:16 PM CST
> > To: corpuschristi...@pm.org, hous...@houston.pm.org, aus...@pm.org,
> > dfw...@pm.org Cc: Matthew Musgrove 
> > Reply-To: Dallas/Ft Worth Perl Mongers 
> > 
> > Texas Perl Mongers,
> > 
> > It is with deep sadness that I inform you all that Jonathon "Scott" Duff
> > passed away peacefully on December 28, 2018. If you actively use one of his
> > CPAN modules I encourage you to adopt it. https://metacpan.org/author/DUFF
> > <https://metacpan.org/author/DUFF>
> > 
> > For those of you who knew Scott, you know flowers were not his thing. He
> > would much more have preferred funding for his children's education... and
> > steak and potatoes. If you would like to make a donation to the family,
> > feel free to send them to https://www.gofundme.com/team-save-our-scott
> > <https://www.gofundme.com/team-save-our-scott> or:
> > 
> > P.O. Box 821092
> > North Richland Hills, TX 76182
> > 
> > Also, could *one* person please forward this email to the Perl6 and CPAN
> > mailing lists as I have not done so.
> > 
> > Thanks,
> > Matthew Musgrove
> > 
> > ___
> > DFW-pm mailing list
> > dfw...@pm.org
> > https://mail.pm.org/mailman/listinfo/dfw-pm  
> 



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Re: Appropriate last words

[Shlomi Fish]

Hi all,

On Mon, 3 Sep 2018 11:09:35 -0700
Larry Wall  wrote:

> On Mon, Sep 03, 2018 at 11:45:58AM -0500, Stephen Wilcoxon wrote:
> : Why the change in die handling between Perl 5 and 6?  Suppressing line
> : numbers with newline was very handy.  Alternatively, adding some sort of
> : directive would be more straight-forward (at least for Perl 5 users moving
> : to Perl 6).
> 
> Well, we did take Perl 5 users into account quite a lot, since many of
> us came from that direction, and we hope more will come in the future.
> 
> On the other hand, language design is all tradeoffs, and every time you
> add a low-powered feature (or keep one, in this case), you raise the
> barrier to entry for folks coming from other cultures, and you waste
> mindspace remembering things that don't buy you much.  For similar
> reasons, <> changed to lines() and all the magic rules about which
> variables are local to a loop went away. Likewise, a lot of the arcane
> knowledge of how a given function behaves in scalar or list context went
> away, mostly by splitting them into distinct operators that are easier
> to read and document.  Of course, the tradeoff is that that are then
> more operators.
> 
> So, sure, you could argue that we've just substituted one kind of arcane
> knowledge for another, but at least you can justify something like
> 
> exit note “Phooey”;
> 
> by mere function composition without appealing to the authority of
> a particular paragraph in the manual.  And of course you could also
> compose your own function if the situation ever rises more than once in
> your program.
> 
> my  =  ∘   eep “Phooey”;
> 
> In the specific case of this feature, one could also argue that putting
> that much semantic weight on the final character of the string is
> violating some kind of end-weight or one-pass principle, forcing a kind
> of mental time-travel for the reader, if not for the compiler.
> 
> Anyway, don't be a language designer if you want to make everyone happy
> all the time.  :-)
> 
> Well, actually, you can want it, just don't expect it... :-)
> 

I agree and I wrote about it here back in 2011 -
https://shlomif-tech.livejournal.com/57811.html ("Your Programming Language
Must Suck"). I also concentrate links to the more general theme of why one can
never please everyone here:
http://shlomifishswiki.branchable.com/Never_Try_to_Please_Everyone/ .

Regards,

Shlomi
> Larry



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-
Shlomi Fish   http://www.shlomifish.org/
http://www.shlomifish.org/humour/ways_to_do_it.html

All Chuck Norris has to do is *look* at Perl code and it interprets itself
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Re: An interesting math formula to share

[Shlomi Fish]

Hi Todd!

On Tue, 10 Jul 2018 02:02:45 -0700
ToddAndMargo  wrote:

> Hi All,
> 
> Remembering from my school days, a famous mathematician
> whose name I forget came up with a formula as a kid
> that made math history.
> 

See https://en.wikipedia.org/wiki/Arithmetic_progression . They tell this story
about https://en.wikipedia.org/wiki/Carl_Friedrich_Gauss - see
http://www.coolmath.com/algebra/19-sequences-series/06-gauss-problem-arithmetic-series-01
 ,
but the formula for that predates him by many centuries.


> As it transpires, when in school, they disciplined him by
> making his count all the number from 1 to some large
> number.  It took him only a few minutes.  They thought
> he cheated, so they sent him back with an even larger
> number to add up.  Same couple of minutes.  Blew his
> teacher's minds every number they gave him.
> 
> Seems he had discovered that if you laid the number
> out forward, then reverse underneath
> 
> N=5
> 
> 1 + 2 + 3 + 4 + 5 = 15
> 5 + 4 + 3 + 2 + 1 = 15
> -
> 6   6   6   6   6 = 30
> 
> If you add the columns, you always got N+1 and N times.
> And that make the formula
> 
>   1+2+3..N = (N+1)*N/2
> 
> I always have fun recreating this formula from the
> forward and reverse tables added as columns.
> 
> So feed the following an integer and have fun!
> 
> Yup.  He blew his teacher's mind!
> 
> -T
> 
> 
> $ echo "5" | p6 'my $N=slurp(); say $N*($N+1)/2;'
> 15
> 
> $ echo "6" | p6 'my $N=slurp(); say $N*($N+1)/2;'
> 21
> 
> $ echo "100" | p6 'my $N=slurp(); say $N*($N+1)/2;'
> 5050



-- 
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Shlomi Fish   http://www.shlomifish.org/
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— Unknown

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Re: Need help converting from Perl 5

[Shlomi Fish]

Hi Todd,

On Sun, 13 May 2018 22:07:59 -0700
ToddAndMargo <toddandma...@zoho.com> wrote:

> On 05/13/2018 09:41 PM, ToddAndMargo wrote:
> > Hi All,
> > 
> > I can't not remember what I did in Perl 5 here and
> > am not having a good time converting it to Perl 6.
> > 
> > $  perl -e 'my $A="44.rc0"; if ($A ~~ /(^[0-9,.,a,b,rc]+$)/ ) {print 
> > "$1\n";} else {print "\$A = <$A>\n"}'
> > 
> > 44.rc0
> > 
> > The actual code is:
> > if ( $Line2 ~~ /(^[0-9,.]+$)/ ) { push ( @WebVersions, $Line2 ); }
> > 
> > The actual data looks like:
> > 
> > $Line2 = 6.0.1
> > $Line2 = 6.0.2
> > $Line2 = 6.0
> > $Line2 = 6.0b1
> > $Line2 = 6.0b2
> > $Line2 = 6.0b3
> > $Line2 = 6.0b4
> > $Line2 = 6.0b5
> > $Line2 = 60.0
> > $Line2 = 60.0b10
> > $Line2 = 60.0b11
> > $Line2 = 60.0b12
> > 
> > I am trying to exclude things that look like:
> > 
> > $Line2 = bonecho
> > $Line2 = custom-updates
> > $Line2 = deerpark
> > $Line2 = devpreview
> > $Line2 = granparadiso
> > $Line2 = latest-beta
> > $Line2 = latest-esr
> > 
> > 
> > Many thanks,
> > -T  
> 
> perl6.org is down by the way.
> 

https://docs.perl6.org/type.html and https://perl6.org/ seem fine from here now
- please try again.

> Is this right?
> 
> perl6 -e 'my $A="44.rc20"; if $A ~~ m/( \d**1..4 "." ( "a" | "b" | "rc" 
> ) .*$ ) /  {say "$0";} else {say "no match";}'
> 
> 44.rc20
> 
> 
> 



-- 
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Shlomi Fish   http://www.shlomifish.org/
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*Harry*: Yes, it is obvious that this pig is the most beautiful person for
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*Miss Piggy*: Indeed. Candice Swanepoel ain’t got nothing on… Moi!
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Fw: awk?

[Shlomi Fish]

Begin forwarded message:

Date: Fri, 13 Apr 2018 13:31:12 +0300
From: Shlomi Fish <shlo...@shlomifish.org>
To: perl6-users@perl.org
Subject: Re: awk?


Hi Todd,

On Fri, 13 Apr 2018 03:00:22 -0700
ToddAndMargo <toddandma...@zoho.com> wrote:

> echo "total kB  1804482980 112" | awk '{print $4}')  

shlomif[Perl6]:$trunk$ echo "total kB  1804482980 112" | perl6
-n -e 'say .split(/\s+/)[3]'

2980

shlomif[Perl6]:$trunk$ echo "total kB  1804482980 112" | awk
'{print $4}'

2980

See https://docs.perl6.org/language/5to6-nutshell#-a and
http://perldoc.perl.org/perlrun.html .

Re: awk?

[Shlomi Fish]

Hi Todd,

On Fri, 13 Apr 2018 03:00:22 -0700
ToddAndMargo <toddandma...@zoho.com> wrote:

> echo "total kB  1804482980 112" | awk '{print $4}')

shlomif[Perl6]:$trunk$ echo "total kB  1804482980 112" | perl6
-n -e 'say .split(/\s+/)[3]'

2980

shlomif[Perl6]:$trunk$ echo "total kB  1804482980 112" | awk
'{print $4}'

2980

See https://docs.perl6.org/language/5to6-nutshell#-a and
http://perldoc.perl.org/perlrun.html .

-- 
---------
Shlomi Fish   http://www.shlomifish.org/
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Gödel’s Incompleteness Theorem is about to be replaced by the
[Clarissa] Darling “Like, Totally!” Completeness Theorem.
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Re: SDL 2 code to put into a module

[Shlomi Fish]

On Thu, 9 Nov 2017 07:04:35 +0100
The Holy Ghost <holygh...@yellowcouch.org> wrote:

> On Wed, Nov 08, 2017 at 12:14:41PM +0200, Shlomi Fish wrote:
> > Hi Holly,
> > 
> > That put aside, the README has trailing space and its grammar is bad.
> > Perhaps see this link for some inspiration and insights:  
> 
> The trailing spaces are gone now.
> 

Thanks!

Please consider adding checks against their presence to the test suite and the
https://en.wikipedia.org/wiki/Continuous_integration system.

Also, please try to fix the grammar/punctuation/etc. there, because like I said
I was unable to discern the precise original meaning.

Regards,

Shlomi

> Best regards,
> Holly 



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Shlomi Fish   http://www.shlomifish.org/
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Re: SDL 2 code to put into a module

[Shlomi Fish]

Hi Johan,

On Thu, 9 Nov 2017 09:59:12 +0100
The Holy Ghost <holygh...@yellowcouch.org> wrote:

> On Thu, Nov 09, 2017 at 10:23:46AM +0200, Shlomi Fish wrote:
> > 
> > Regarding the grammar, I wanted to send a pull-req, but unfortunately I
> > found that I usually couldn't figure out the original intention. See for
> > youreself -
> > https://github.com/shlomif/holly6src/blob/master/Holly6Game/README . Sorry
> > for not mentioning it earlier. 
> 
> About the pull request, I see you're interested in my HollyGame things,
> there's a repository at the same user with the original perl 5 code in it, 
> https://github.com/theholyghost/hollysrc you can
> also find my Wycadia and Ultima8 programs derived from the game kit in there.
> 
> If you want to port them, Perl5::Inline or write your own, be my guest.
> 

Thanks for the update. I forked the repo hoping to fix the README, and do not
have an immediate use for this code. I'll keep your offer in mind, however.
> Best Regards,
> Johan



-- 
-----
Shlomi Fish   http://www.shlomifish.org/
Parody of "The Fountainhead" - http://shlom.in/towtf

SMG: It was 1997-1998ish, Buffy started airing. So one day a group of
yeshivah pupils arrived to the studios saying they have some numereological
insights from the Jewish bible, about what will happen in Sunnydale next.
— http://www.shlomifish.org/humour/Summerschool-at-the-NSA/

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Re: SDL 2 code to put into a module

[Shlomi Fish]

Hi Liz,

On Wed, 8 Nov 2017 12:59:16 +0100
Elizabeth Mattijsen <l...@dijkmat.nl> wrote:

> Shlomi,
> 
> perhaps The Holy Ghost takes Pull Requests?  Just saying "grammar is bad” is
> a bit meagre, and just posting a link to a tl;dr document is not really
> helping.  Fixing cases of what you consider to be bad grammar, would be more
> helpful, I think.

The link was to a section there (an anchor) which is relatively short and
contains several links to other documents. Also see
http://www.robcottingham.ca/cartoon/archive/tldr/ .

Regarding the grammar, I wanted to send a pull-req, but unfortunately I found
that I usually couldn't figure out the original intention. See for youreself -
https://github.com/shlomif/holly6src/blob/master/Holly6Game/README . Sorry for
not mentioning it earlier.

Regards,

Shlomi

> 
> 
> Kind regards,
> 
> Liz
> =======
> > On 8 Nov 2017, at 11:14, Shlomi Fish <shlo...@shlomifish.org> wrote:
> > 
> > Hi Holly,
> > 
> > On Wed, 8 Nov 2017 10:38:08 +0100
> > The Holy Ghost <holygh...@yellowcouch.org> wrote:
> >   
> >> Hello,
> >> 
> >> On Tue, Nov 07, 2017 at 07:11:32PM +0200, Shlomi Fish wrote:  
> >>> 
> >>> thanks for your contribution.
> >>> 
> >>> 1. Does it have a
> >>> http://perl-begin.org/tutorials/bad-elements/#version_control repo?
> >>> 
> >>> 2. See
> >>> http://www.catb.org/esr/writings/homesteading/homesteading/ar01s13.html . 
> >>>
> >> 
> >> I've put my game kit code on github, so you can follow it there, it
> >> compiles now, the adress is : https://github.com/theholyghost/holly6src
> >> 
> >> Thanks for helping out,
> >> Holly  
> > 
> > Thanks!
> > 
> > That put aside, the README has trailing space and its grammar is bad.
> > Perhaps see this link for some inspiration and insights:
> > 
> > https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ.mdwn#what-are-some-best-practices-in-programming-that-i-should-adopt
> > 
> > Regards,
> > 
> > Shlomi
> > 
> > 
> > 
> > -- 
> > -
> > Shlomi Fish   http://www.shlomifish.org/
> > Beginners Site for the Vim text editor - http://vim.begin-site.org/
> > 
> > He had found a Nutri-Matic machine which had provided him with a plastic cup
> > filled with a liquid that was almost, but not quite, entirely unlike tea.
> >— https://en.wikiquote.org/wiki/The_Hitchhiker%27s_Guide_to_the_Galaxy
> > 
> > Please reply to list if it's a mailing list post - http://shlom.in/reply .  



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Re: SDL 2 code to put into a module

[Shlomi Fish]

Hi Holly,

On Wed, 8 Nov 2017 10:38:08 +0100
The Holy Ghost <holygh...@yellowcouch.org> wrote:

> Hello,
> 
> On Tue, Nov 07, 2017 at 07:11:32PM +0200, Shlomi Fish wrote:
> > 
> > thanks for your contribution.
> > 
> > 1. Does it have a
> > http://perl-begin.org/tutorials/bad-elements/#version_control repo?
> > 
> > 2. See
> > http://www.catb.org/esr/writings/homesteading/homesteading/ar01s13.html .  
> 
> I've put my game kit code on github, so you can follow it there, it compiles
> now, the adress is : https://github.com/theholyghost/holly6src
> 
> Thanks for helping out,
> Holly

Thanks!

That put aside, the README has trailing space and its grammar is bad. Perhaps
see this link for some inspiration and insights:

https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ.mdwn#what-are-some-best-practices-in-programming-that-i-should-adopt

Regards,

    Shlomi



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Re: SDL 2 code to put into a module

[Shlomi Fish]

On Tue, 7 Nov 2017 11:17:42 +0100
The Holy Ghost <holygh...@yellowcouch.org> wrote:

> Hi,
> 
> I am but a perl6 newbie and perl archwizard but I placed my module for a 2D 
> gamekit at
> http://gomez.yellowcouch.org/holly6src-1.3.tar.gz
> 
> It can be extended for 3D games later on.
> 

hi,

thanks for your contribution.

1. Does it have a http://perl-begin.org/tutorials/bad-elements/#version_control
repo?

2. See http://www.catb.org/esr/writings/homesteading/homesteading/ar01s13.html .

Regards,

Shlomi
> Best regards,
> Holly



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Re: Anyone want me eMail and download interface for curl?

[Shlomi Fish]

Hi,

On Sat, 4 Nov 2017 14:02:35 -0700
ToddAndMargo <toddandma...@zoho.com> wrote:

> On 11/04/2017 02:19 AM, Shlomi Fish wrote:
> > Hi,
> > 
> > On Fri, 3 Nov 2017 14:38:05 -0700
> > ToddAndMargo <toddandma...@zoho.com> wrote:
> >   
> >> On 11/03/2017 02:34 AM, Shlomi Fish wrote:  
> >>>because i believe that
> >>> otherwise viewing such encumbered code may taint one's future software dev
> >>> work.  
> >>
> >> What do you mean by the above line?
> >>  
> > 
> > See the discussion at
> > https://slashdot.org/story/04/02/12/2114228/windows-2000-windows-nt-4-source-code-leaks
> >  .
> >   
> >>
> >> Thank you for the heads up.
> >>
> >> Also, I do frequently post modules I have written.
> >> Should I stop the practice?  
> > 
> > Not if you explicitly place them under a FOSS licence.
> >   
> 
> 
> Hi Shlomi,
> 
> I am looking at your link to FOSS:
> https://en.wikipedia.org/wiki/Free_and_open-source_software
> It sound perfect.
> 
> I am not seeing how to actually register something as FOSS.
> Do I need a lawyer?  (I can not afford that kind of stuff.)
> 

No, see http://choosealicense.com/ .

Regards,

Shlomi

> Many thanks,
> -T
> 



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Re: Anyone want me eMail and download interface for curl?

[Shlomi Fish]

Hi Todd,

On Fri, 3 Nov 2017 00:47:09 -0700
Todd Chester <toddandma...@zoho.com> wrote:

> Hi All,
> 
> Without going into the reasons why, I was forced to write a
> module that interfaces curl for Perl 6.  The module will
> 
> 1) download a web page
> 
> 2) download a file from the web and will properly follow redirects
> 
> 3) will create proper eMail headers and send an eMail.  It
> will auto sense html and enter the proper content header.
> It will also handle one attachment.  It supports supports
> ssl and port 465 and 587.
> 
> It was a real "adventure" to write.  I had to learn how to
> properly create eMail headers -- the thing you do not see
> on your eMail.  Amongst and ton of other things.  I took
> me about two months to create.  It works slick too
> 
> If anyone wants this module and helper modules, let me
> know and I will attach it here with a vpaste.
> 
> I am offering this as you guys gave me a lot of help
> both here and on the chat line.
> 
> -T

please don't share this program unless it is licensed under an approved
https://en.wikipedia.org/wiki/Free_and_open-source_software licence (see
https://www.gnu.org/licenses/license-list.html ) because i believe that
otherwise viewing such encumbered code may taint one's future software dev work.

Regards,

    Shlomi Fish

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Fw: Perl 6: Protecting Intellectual Property for Commercial Code

[Shlomi Fish]

Please reply to list if it's a mailing list post - http://shlom.in/reply .


Begin forwarded message:

Date: Thu, 26 Oct 2017 07:43:43 -0700
From: James Ellis Osborne III <jamesel...@twee.se>
To: Shlomi Fish <shlo...@shlomifish.org>
Subject: Re: Perl 6: Protecting Intellectual Property for Commercial Code


As another aside (That's mostly what I got) can I point out the first 72
bytes of the output generated by the ifort.exe FORTRAN compiler as a model
for considering why we should or shouldn't have executable code options
available to the common feller on any platform

On Oct 26, 2017 5:19 AM, "Shlomi Fish" <shlo...@shlomifish.org> wrote:

> On Mon, 23 Oct 2017 10:57:20 -0700
> James Ellis Osborne III <jamesel...@twee.se> wrote:
>  
> > This particular app was .pyd files locked with calls to a C dll.  Source
> > code is reconstructable but for an app of more than a few thousand lines
> > it's highly unlikely anyone is going to go rebuilding it all.
> >
> > If your goal is to defeat all forms of piracy, you're surely out of luck
> > but if your goal is to generate code that cannot be modified in place and
> > has a commercial license then there are certainly options.  My particular
> > model is parallel-mode diffie-hellman.. it's easily extendable to perl 6
> > thanks to native arbitrary precision support but in my opinion it's a
> > hugely different thing to be able to open the file & remove a line of
> > readable source vs JMP or decompile/recompile steps.. obfuscation is
> > unnaceptable for commercial sale for the same reason.
> >  
>
> I see.
>
> --
> -
> Shlomi Fish   http://www.shlomifish.org/
> My Aphorisms - http://www.shlomifish.org/humour.html
>
> Chuck Norris taught God how to create the universe.
> — http://www.shlomifish.org/humour/bits/facts/Chuck-Norris/
>
> Please reply to list if it's a mailing list post - http://shlom.in/reply .
>  


-- 
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Shlomi Fish   http://www.shlomifish.org/
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The Knights Who Say “Ni” once said “Ni” to Chuck Norris. They are now no longer
The Knights Who Say “Ni”.
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As another aside (That's mostly what I got) can I point out the first 72 bytes of the output generated by the ifort.exe FORTRAN compiler as a model for considering why we should or shouldn't have executable code options available to the common feller on any platformOn Oct 26, 2017 5:19 AM, "Shlomi Fish" <shlo...@shlomifish.org> wrote:On Mon, 23 Oct 2017 10:57:20 -0700
James Ellis Osborne III <jamesel...@twee.se> wrote:

> This particular app was .pyd files locked with calls to a C dll.  Source
> code is reconstructable but for an app of more than a few thousand lines
> it's highly unlikely anyone is going to go rebuilding it all.
>
> If your goal is to defeat all forms of piracy, you're surely out of luck
> but if your goal is to generate code that cannot be modified in place and
> has a commercial license then there are certainly options.  My particular
> model is parallel-mode diffie-hellman.. it's easily extendable to perl 6
> thanks to native arbitrary precision support but in my opinion it's a
> hugely different thing to be able to open the file & remove a line of
> readable source vs JMP or decompile/recompile steps.. obfuscation is
> unnaceptable for commercial sale for the same reason.
>

I see.

--
-
Shlomi Fish       http://www.shlomifish.org/
My Aphorisms - http://www.shlomifish.org/humour.html

Chuck Norris taught God how to create the universe.
    — http://www.shlomifish.org/humour/bits/facts/Chuck-Norris/

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Re: Perl 6: Protecting Intellectual Property for Commercial Code

[Shlomi Fish]

On Mon, 23 Oct 2017 10:57:20 -0700
James Ellis Osborne III <jamesel...@twee.se> wrote:

> This particular app was .pyd files locked with calls to a C dll.  Source
> code is reconstructable but for an app of more than a few thousand lines
> it's highly unlikely anyone is going to go rebuilding it all.
> 
> If your goal is to defeat all forms of piracy, you're surely out of luck
> but if your goal is to generate code that cannot be modified in place and
> has a commercial license then there are certainly options.  My particular
> model is parallel-mode diffie-hellman.. it's easily extendable to perl 6
> thanks to native arbitrary precision support but in my opinion it's a
> hugely different thing to be able to open the file & remove a line of
> readable source vs JMP or decompile/recompile steps.. obfuscation is
> unnaceptable for commercial sale for the same reason.
> 

I see. 

-- 
-----
Shlomi Fish   http://www.shlomifish.org/
My Aphorisms - http://www.shlomifish.org/humour.html

Chuck Norris taught God how to create the universe.
— http://www.shlomifish.org/humour/bits/facts/Chuck-Norris/

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Re: Perl 6: Protecting Intellectual Property for Commercial Code

[Shlomi Fish]

Hi James,

On Mon, 23 Oct 2017 07:19:34 -0700
James Ellis Osborne III <jamesel...@twee.se> wrote:

> Is compilation to bytecode still a todo feature?  I managed to get a
> solution supporting compilation, serial-based locking, & license expiration
> delivered in Python last month for the nuclear industry..  Bytecode
> compilation is a hard requirement though if you don't want someone easily
> ripping out the license check & don't want to spend the effort building
> useability features into the serial calls.
> 

Since Python is a symbolic language, it is relatively easy to reconstruct the
original python source code from the *.pyc files. See
http://shlomif-tech.livejournal.com/39732.html (which was linked in one of my
links).


-- 
---------
Shlomi Fish   http://www.shlomifish.org/
http://ccmixter.org/files/destinazione_altrove/49997 - “Paint The Sky”

Joel’s Generalisation: If it happens to you, it happens to everybody.
(Or: It’s never only you.)
— Based on http://www.joelonsoftware.com/news/20020402.html

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Re: Perl 6: Protecting Intellectual Property for Commercial Code

[Shlomi Fish]

Hi Mark,

On Sun, 22 Oct 2017 22:37:31 +
Mark Devine <m...@markdevine.com> wrote:

> Perl 6 Users,
> 
> [[ Bouncing off Re: who own my code? ]]
> 
> This is the first of several possible spin-off questions, but here goes…
> 
> Perl 6 has its public ecosystem, which will drive growth and adoption.  Then
> there’s the commercial side, which would also drive the language from another
> important angle.  I believe in a balance of public sharing and private
> enterprise.
> 
> I am interested in packaging some of my long-term Perl 6
> projects/scripts/apps/frameworks into some kind of relocatable object form
> (binary) that cannot be easily altered or trivially reverse engineered.  Put
> another way, I sometimes would prefer not to sell source code to my
> customers, but rather some form of compiled package that can’t easily be
> diddled by a SysAdmin.  If I create code for a particular commercial domain
> over years, then I want to get compensated for it and not have it be diluted
> with copy-cats one week after I release it.  Certainly some of the generic
> libraries that I create in the future can be modularized for the Perl 6
> ecosystem and I’ll push those eventually, but the really specialized
> domain-specific code that fills a commercial void & that I will commit years
> to maintaining, I’d like to offer a commercial license, key-protect, sell
> subscriptions, etc.
> 
> Again, I’m very interested in contributing to the ecosystem when possible.  I
> still need to grow past baby/teenager Perl 6, and I’ll get there soon.  But
> after creating something targeted only for customer purchase/subscription,
> what tools are available in the Perl 6 toolbox?  I saw something for the Java
> back-end (to .jar), but not much else.
> 
> Is there a Perl 6 roadmap that might mention compiling Perl 6 modules/scripts
> into something atomic, binary, & relocatable?  Or preferably the capability
> to compile only specific Perl 6 modules, requiring an existing Perl 6 on the
> target host?
> 

Please see
https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ.mdwn#how-do-i-hideobscureencrypt-my-source-code-to-prevent-end-users-from-learning-how-it-works
 .

Regarding "Intellectual Property", see
https://www.linux.com/news/why-term-intellectual-property-seductive-mirage and
http://ericsink.com/articles/Intellectual_Property.html .

-- 
-
Shlomi Fish   http://www.shlomifish.org/
Best Introductory Programming Language - http://shlom.in/intro-lang

I’m worser at superlatives.
And I don’t ever use no double negatives.
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Re: bash and pm6 question

[Shlomi Fish]

Hi Todd,

On Wed, 20 Sep 2017 23:22:41 -0700
ToddAndMargo <toddandma...@zoho.com> wrote:

> Hi All,
> 
> Can I call a pm6 directly from bash or do I
> need to call a pl6 that calls the pm6?
>

why not use "perl6 -e"?

Regards,

Shlomi
 
> 
> Many thanks,
> -T
> 



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---------
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Alan: Well, according to the Codex, we’re supposed to be slain by you.
— http://www.shlomifish.org/humour/Selina-Mandrake/

Perl 6 Speed Revelation

[Shlomi Fish]

Hi all!

Some time ago I solved this problem - https://projecteuler.net/problem=343 -
using a relatively slow pypy3 program (see
https://github.com/shlomif/project-euler/blob/master/project-euler/343/euler_343_v1.py
). After gaining access to the problem's forum, I found a faster way to solve
it in PARI/GP there -
https://github.com/shlomif/project-euler/blob/master/project-euler/343/euler_343_v2.gp
and translated it into perl 5 + bash -
https://github.com/shlomif/project-euler/blob/master/project-euler/343/euler_343_v2.bash
 .
It uses https://en.wikipedia.org/wiki/Factor_(Unix) which is written in
optimised C.

Now, after I translated the program to Pure Perl 6 -
https://github.com/shlomif/perl6-examples/blob/shlomif--euler343/categories/euler/prob343-shlomif.p6
 ,
the perl 6 version ran very slowly. I bugged the people on freenode about it
until someone there translated the shell version to use perl 6 instead of p5,
and said it performed roughly as well. This gave me an idea to try an
equivalent perl 5 version - see
https://github.com/shlomif/project-euler/blob/master/project-euler/343/prob343-shlomif.pl
and it ran at a comparable, slow, speed as the perl 6 version.

So to sum up:

1. GNU factor is really fast.

2. When it comes to factorisation, perl 5 and perl 6 are slower and run at a
comparable speed.

I apologise for the noise I caused.

Regards,

Shlomi

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Re: remove spaces?

[Shlomi Fish]

On Thu, 18 May 2017 00:56:42 -0700
ToddAndMargo <toddandma...@zoho.com> wrote:

> On 05/18/2017 12:22 AM, ToddAndMargo wrote:
> > Hi All,
> > 
> > Any of you guys have a favorite way to remove all
> > spaces from a string?  (Otherwise I will use a regex.)
> > 
> > 
> > Many thanks,
> > -T
> >   
> 
> 
> 
> I like this.  Any objections to it?
> 
> perl6 -e 'my $x="1234,5678"; $x ~~ tr/ //; say $x;'
> 1234,5678
> 
> 

There are other whitespace characters in ASCII and in unicode than just ' ' (or
'\x20') - \t, \v, \n, etc. How do you wish to handle them?

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Shlomi Fish   http://www.shlomifish.org/
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Re: write string requires an object with REPR MVMOSHandle

[Shlomi Fish]

On Wed, 29 Mar 2017 12:10:15 +0200
Timo Paulssen  wrote:

> As part of the IOwesome grant, zoffix is going to fix this error. It's
> what you get when you try to write to or read from or do anything with a
> closed IO::Handle.
> 
> When you use "LEAVE:" you're just declaring a label called "LEAVE".
> There are no labels with special function, so your code is equivalent to
> 
> sub save {
> my $fh = open('data.txt', :w);
> ohai: $fh.close;
> $fh.print("hello\n");
> }
> 
> so you're opening the file, closing the file, then writing to it. That
> can't work, of course, but the error is also clearly LTA.
> 

Hi Timo!

What does "LTA" stand for in this context? One thing I learned is to avoid
acronyms as much as possible.

Regards,

Shlomi

> HTH
>   - Timo

Re: Perl 6 docs

[Shlomi Fish]

On Sat, 25 Mar 2017 16:49:04 +0100
Gabor Szabo  wrote:

> https://github.com/perl6/doc/issues/1257

Thanks for clarifying!

Re: program/script question

[Shlomi Fish]

Hi Todd,

On Sat, 4 Mar 2017 19:23:07 -0800
ToddAndMargo <toddandma...@zoho.com> wrote:

> Hi All,
> 
> This is one of those really dumb questions, but can I call
> what I write in Perl a "program" or a "script"?  Or, does
> it even matter?
> 
> Many thanks,
> -T
> 

Please see:

*
https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ.mdwn#what-is-the-difference-between-scripting-languages-such-as-perl-php-python-or-ruby-and-industrial-strength-languages-such-as-c-c-java-and-c

*
https://github.com/shlomif/Freenode-programming-channel-FAQ/blob/master/FAQ.mdwn#what-do-you-think-about-interpreted-vs-compiled-languages

Note that I have written most of that page.

Regards,

Shlomi Fish

Re: per 5 converter?

[Shlomi Fish]

On Mon, 13 Feb 2017 09:40:32 -0500
Parrot Raiser <1parr...@gmail.com> wrote:

> On 2/12/17, Brandon Allbery <allber...@gmail.com> wrote:
> >
> > Translators are infamous for producing gobbledygook no self-respecting
> > programmer would write
> >  
> 
> But unfortunately, far too many programmers do. :-)*

“
Trading was mentioned in the brochure.  The main trade that was carried out
was in the skins of the NowWhattian boghog but it wasn't a very successful
one because no one in their right minds would want to buy a NowWhattian
boghog  skin.   The  trade  only  hung  on  by  its  fingernails  because
there  was always  a  significant  number  of  people  in  the  Galaxy  who
were  not  in  their right minds.
”

From https://en.wikipedia.org/wiki/Mostly_Harmless .

;-)

Regards,

Shlomi Fish

Re: per 5 converter?

[Shlomi Fish]

[Resending because the email did not arrive to the list. E-mail has sadly
become unreliable.]

Hi T,

On Sat, 11 Feb 2017 22:47:10 -0800
ToddAndMargo <toddandma...@zoho.com> wrote:

> Hi All,
> 
> I know I asked this once before and I had though I'd written it
> down, but do you have any favorite Perl5 to Per6 converters?
> 

There's https://github.com/fglock/Perlito but it's incomplete, and may not
generate idiomatic or too performant code. I recall trying to use it to compile
Perl 5 to JavaScript and after I went to a lot of effort in either fixing
Perlito itself or adapting my code for it to be more compatible with it, it was
executed slower by Node.js than the Perl 5 original.

Regards,

Shlomi Fish

> Many thanks,
> -T
> 

Re: unsubsribe

[Shlomi Fish]

Hi Rene,

for information about how to unsubscribe from perl6-users, please see this page:

http://lists.perl.org/list/perl6-users.html

sorry to see you go, and good luck in the future!

-- Shlomi Fish

On Tue, 13 Sep 2016 23:41:17 + (UTC)
Rene Bourgoin via perl6-users <perl6-users@perl.org> wrote:

> 


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-----
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It takes Summer Glau exactly a minute to write a rebuttal like in
xkcd: “Venting”, and she would sign it as Chuck Norris.
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Re: Two topics not found in docs search: 'constant' and 'heredocs'.

[Shlomi Fish]

Hi Tom!

On Mon, 4 Apr 2016 06:20:36 -0500
Tom Browder  wrote:

> The declarator "constant" is found here:
> 
>   http://doc.perl6.org/language/5to6-nutshell#constant
> 
> And "Heredocs" are discussed here:
> 
>   http://doc.perl6.org/language/quoting#Heredocs%3A_%3Ato
> 
> but neither is listed when doing a search.
> 

How are you searching exactly? With which command/which URL?

-- Shlomi

> And how does one make a phrase or term searchable in the docs anyway?
> 
> Thanks.
> 
> Best regards,
> 
> -Tom