From nmqrstx-18@yahoo.de

Subject​: Behavior unpack/pack in v5.10 with U-template

hi,

from v5.6.1 to v5.8.8, I get the list of codepoints as follow​:

@​codepoints = unpack("U*", $bytes); # where $bytes is an utf-8-coded string
# or as recommended
@​codepoints = unpack("U0U*", $bytes);

Now, I have Perl as v5.10 and the result of unpack("U0U*", $bytes); is a
list of byteorder​:

my @​b = unpack "C*", 'ä'; # 195 164
my @​b = unpack "U*", 'ä'; # 195 164, same as above!

as not expected! It is a bug or a feature?

Kind regards,
Rolf Rost

From @cpansprout

On Sat Aug 20 07​:21​:13 2011, nmqrstx-18@​yahoo.de wrote​:

Subject​: Behavior unpack/pack in v5.10 with U-template

hi,

from v5.6.1 to v5.8.8, I get the list of codepoints as follow​:

@​codepoints = unpack("U*", $bytes); # where $bytes is an utf-8-coded
string
# or as recommended
@​codepoints = unpack("U0U*", $bytes);

Now, I have Perl as v5.10 and the result of unpack("U0U*", $bytes); is a
list of byteorder​:

my @​b = unpack "C*", '�'; # 195 164
my @​b = unpack "U*", '�'; # 195 164, same as above!

as not expected! It is a bug or a feature?

I’m no expert on pack, but I know it did change intentionally in 5.10.0.
Does this explain what you are seeing?

https://github.com/mirrors/perl/blob/v5.10.0/pod/perl5100delta.pod#Packing_and_UTF-8_strings

From [Unknown Contact. See original ticket]

On Sat Aug 20 07​:21​:13 2011, nmqrstx-18@​yahoo.de wrote​:

Subject​: Behavior unpack/pack in v5.10 with U-template

hi,

from v5.6.1 to v5.8.8, I get the list of codepoints as follow​:

@​codepoints = unpack("U*", $bytes); # where $bytes is an utf-8-coded
string
# or as recommended
@​codepoints = unpack("U0U*", $bytes);

Now, I have Perl as v5.10 and the result of unpack("U0U*", $bytes); is a
list of byteorder​:

my @​b = unpack "C*", '�'; # 195 164
my @​b = unpack "U*", '�'; # 195 164, same as above!

as not expected! It is a bug or a feature?

I’m no expert on pack, but I know it did change intentionally in 5.10.0.
Does this explain what you are seeing?

https://github.com/mirrors/perl/blob/v5.10.0/pod/perl5100delta.pod#Packing_and_UTF-8_strings

@cpansprout - Status changed from 'new' to 'open'

@cpansprout - Status changed from 'open' to 'rejected'