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It seems I have read every page on character encoding I can find. But I am missing something. I still have a bit of confusion which I hope can get cleared up here.
#!/usr/bin/perl use strict; use Encode; use Text::Unaccent::PurePerl qw(unac_string); use utf8; my $string = "Queensr˙che"; no utf8; chars($string); (Encode::is_utf8($string))? print " - this is utf8\n" : print " - this + is NOT utf8\n"; print "unaccented: " . Text::Unaccent::PurePerl::unac_string($string) +. "\n"; print $string; exit; sub chars { my $k = shift; my @chars = split("",$k); foreach (@chars) { my $dec = ord($_); my $chr = chr(ord($_)); my $escape = qquote($_); print "\t$dec\t$chr\t$escape\n"; } } sub qquote { local($_) = shift; s/([\\\"\@\$])/\\$1/g; my $bytes; { use bytes; $bytes = length } s/([[:^ascii:]])/'\x{'.sprintf("%x",ord($1)).'}'/ge if $bytes +> length; return $_; }
This is what I am seeing in my terminal (I am using secure crt, with Terminal > Appearance > Character encoding: UTF-8)
81 Q Q 117 u u 101 e e 101 e e 110 n n 115 s s 114 r r 255 {ff} 99 c c 104 h h 101 e e - this is utf8 unaccented: Queensryche Queensr
Here are my questions about this:
  1. Why is the "˙" not printing correctly here in my terminal?
  2. ord() returns 255 for ˙, a single byte. Encode thinks this is utf-8, but isn't this actually utf-16?
    Utf-16 table: http://asecuritysite.com/coding/asc2
I have another version of "Queensr˙che" (in a JSON file), when I parse that and run it though the same thing, this is what I get:
81 Q Q 117 u u 101 e e 101 e e 110 n n 115 s s 114 r r 195 {c3} 191 {bf} 99 c c 104 h h 101 e e - this is utf8 unaccented: QueensrA Queensr˙che
This is where the deep confusion is for me.
  1. This actually looks like valid UTF-8 to me and Encode agrees. Is that correct?
    ord() returns two bytes for ˙, 195 and 191 which matches up with this table:
    Utf-8 table: http://www.utf8-chartable.de/unicode-utf8-table.pl?utf8=dec
  2. Text::Unaccent::PurePerl does not "unaccent" it properly. Why not?
Finally. Since these two strings cannot be compared and matched as being the same (which I understand why) I need to "normalize" them.
  1. Is #1 Queensr˙che or #2 Queensr˙che actually utf-8? (Or are they both actually utf-8 as Encode believes?)
  2. Is there a way to safely convert them to the same encoding? I would like to preserve the ˙ but I would also like to be able to use Text::Unaccent::PurePerl.
Thanks!

Update #1:
--------------------------------------

Taking out the "use utf8" and "no utf8":

#use utf8; my $string = "Queensr˙che"; #no utf8;
And then running it again:
81 Q Q 117 u u 101 e e 101 e e 110 n n 115 s s 114 r r 195 191 99 c c 104 h h 101 e e - this is NOT utf8 unaccented: QueensrA Queensr˙che
This confuses me even more. I understand the utf8 flag is not set now, so Encode doesn't see it as utf8. But I see the two utf-8 bytes for the "˙" are there (195 191) instead of 255 when using "use utf8". It prints correctly (and displays in my terminal properly) but does not unaccent correctly. Much confusion.

In reply to The Queensr˙che Situation by Rodster001

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