Re: encode $encoding list ???

[William Michels via perl6-users]

On Sun, Jun 19, 2022 at 11:00 PM ToddAndMargo via perl6-users <
perl6-users@perl.org> wrote:

> On 6/19/22 21:49, William Michels via perl6-users wrote:
> > Hi Todd, I'm trying to follow what you're doing (below in Terminal app
> > on MacOS):
> >
> > ~$ raku
> > Welcome to 𝐑𝐚𝐤𝐮𝐝𝐨™ v2021.06.
> > Implementing the 𝐑𝐚𝐤𝐮™ programming language v6.d.
> > Built on MoarVM version 2021.06.
> >
> > To exit type 'exit' or '^D'
> >  > print Buf.new(0x84, 0x73, 0x77, 0x84, 0x79).decode("utf8-c8") ~ "\n"
> > 􏿽x84sw􏿽x84y
> >  >
> >
> > Not clear if this is what you expect. I've also run code from
> > https://docs.raku.org/language/unicode#UTF8-C8
> > <https://docs.raku.org/language/unicode#UTF8-C8> and see something
> > different from what's posted there:
> >
> >     my $test-file = "/tmp/test";
> >     given open($test-file, :w, :bin) {
> >        .write: Buf.new(ord('A'), 0xFA, ord('B'), 0xFB, 0xFC, ord('C'),
> >     0xFD);
> >        .close;
> >     }
> >
> >     say slurp($test-file, enc => 'utf8-c8');
> >     # OUTPUT: «(65 250 66 251 252 67 253)»
> >
> >
> > The output I actually see is:
> >
> > A􏿽xFAB􏿽xFB􏿽xFCC􏿽xFD
> >
> > If I go into /tmp and look at the file created, it contains the
> > following single line:
> >
> > AúBûüCý
> >
> >
> > HTH, Bill.
> >
> >
> > On Sun, Jun 19, 2022 at 8:42 PM ToddAndMargo via perl6-users
> > <perl6-users@perl.org <mailto:perl6-users@perl.org>> wrote:
> >
> >       >print Buf.new(0x84, 0x73, 0x77, 0x84, 0x79).decode("utf8-c8") ~
> "\n"
> >
> >     􏿽x84sw􏿽x84y
> >
>
>
>
> Hi Bill,
>
> I was after getting anything to print.  I expected
> it to look like utter non-sense.
>
> It was part of my Keeper on buffers.  And I
> had to use "utf8-c8" to keep the line
> from crashing.
>
> -T
>
>
>
> Buffer to String:
>     > say Buf.new(97,98,99).decode
>     abc
>
>     >print Buf.new(0x84, 0x73, 0x77, 0x84, 0x79).decode("utf8-c8") ~ "\n"
>     􏿽x84sw􏿽x84y
>
>     Decoding values, see:
> https://docs.raku.org/routine/encoding#class_IO::Handle
> utf8
> utf16
> utf16le
> utf16be
> utf8-c8
> iso-8859-1
> windows-1251
> windows-1252
> windows-932
> ascii
>

That  "0x84" issue seems pretty well-known:

"Python3 Fix→ UnicodeDecodeError: ‘utf-8’ codec can’t decode byte in
position"
https://medium.com/code-kings/python3-fix-unicodedecodeerror-utf-8-codec-can-t-decode-byte-in-position-be6c2e2235ee

HTH, Bill.