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Postings from May 2013
On Wed, May 01, 2013 at 04:32:07PM +0200, demerphq wrote:
> It used to be nice and safe to do this:
>
> print unpack("H*", $_),"\n"; # lets see what the string looks like in the raw.
>
>
> This is no longer an effective debugging technique. It will NOT tell
> you what your string looks like. It takes a "daddy knows best"
> attitude and tries to do the right thing depending on whether the data
> is utf8 or the data is not. Which means that this:
>
> perl -le'unpack "H*", "\x{DF}\x{100}"'
>
> Produces completely different results depending on which Perl you are
> on. On older perls it produces a relatively useful:
>
> c39fc480
Add U0:
$ ./perl -le'print unpack "U0H*", "\x{DF}\x{100}"'
c39fc480
$ perl5.8.9 -le'print unpack "U0H*", "\x{DF}\x{100}"'
c39fc480
(apparently today I am supposed to be observing the public holiday. Whether
I want to or not)
Nicholas Clark
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