Re: Character in 'b' format wrapped in unpack

Did the shifting manage to create a wide character?

It seems so. I added

print $x:
[download]

to the script and now I'm getting:

Wide character in say at ./1.pl line 10.
[download]

The output through xxd:

0000000: c2aa c594 c2aa c594 0a30 3130 3130 3130  .........0101010
0000010: 3130 3031 3031 3031 3030 3130 3130 3130  1001010100101010
0000020: 3130 3031 3031 3031 300a                 100101010.
[download]

لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

Comment on Re: Character in 'b' format wrapped in unpack Select or Download Code

Replies are listed 'Best First'.
Re^2: Character in 'b' format wrapped in unpack by BrowserUk (Patriarch) on Mar 28, 2015 at 15:47 UTC
Dratted Unicrap bites again! With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". I'm with torvalds on this In the absence of evidence, opinion is indistinguishable from prejudice. Agile (and TDD) debunked	[reply]
Re^3: Character in 'b' format wrapped in unpack by choroba (Cardinal) on Mar 28, 2015 at 15:51 UTC
Use bytes. لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply]
Re^4: Character in 'b' format wrapped in unpack by BrowserUk (Patriarch) on Mar 28, 2015 at 16:06 UTC
Good call. I'd completely forgotten about that pragma. Thanks. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". I'm with torvalds on this In the absence of evidence, opinion is indistinguishable from prejudice. Agile (and TDD) debunked	[reply]
Re^3: Character in 'b' format wrapped in unpack by ikegami (Patriarch) on Mar 29, 2015 at 23:12 UTC
The only involvement of Unicode is the use of UTF-8 when you provided invalid data to `print`. That usually means you forgot to encode the argument, so Perl does it for you (but warns you that it did.) Don't pass invalid data to `print`, and Unicode won't be involved.	[reply] [d/l] [select]
Re^4: Character in 'b' format wrapped in unpack by BrowserUk (Patriarch) on Mar 29, 2015 at 23:32 UTC
The only involvement of Unicode is the use of UTF-8 when you provided invalid data to print Utter twaddle! The unicrap 'manifests' regardless of whether you call print: `C:\test>perl -MDevel::Peek -E"$x = '----'; substr($x,2,1) = chr(~0); +Dump( $x )" SV = PVMG(0x250e68) at 0x2669c8 REFCNT = 2 FLAGS = (SMG,POK,pPOK,UTF8) IV = 0 NV = 0 PV = 0x252e48 "--\377\200\217\277\277\277\277\277\277\277\277\277\27 +7--"\0 [UTF8 "--\x{ffffffffffffffff}--"] CUR = 17 LEN = 24 MAGIC = 0x2b66a8 MG_VIRTUAL = &PL_vtbl_utf8 MG_TYPE = PERL_MAGIC_utf8(w) MG_LEN = -1` [download] Perl has silently and unwantedly f**** my data. Broken! With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". I'm with torvalds on this In the absence of evidence, opinion is indistinguishable from prejudice. Agile (and TDD) debunked	[reply] [d/l]