Rather than fixing the consequences of wrong input, fix the decoding of the input.

When reading from the CSV, follow the documentation and use 

my $csv = Text::CSV_XS->new ({ binary => 1, auto_diag => 1 });
#                              ~~~~~~~~~~~
open my $fh, "<:encoding(utf8)", "test.csv" or die "test.csv: $!";
#              ~~~~~~~~~~~~~~~

[download]

When encoding to JSON, be sure to decode the string, as Cpanel::JSON::XS works with UTF-8 encoded strings. 

#!/usr/bin/perl
use strict;
use warnings;
use feature qw{ say };
use charnames ':full';

use Cpanel::JSON::XS;
use Encode qw{ encode };

my $decoded = qq({"yellow horse": "\N{LATIN SMALL LETTER Z WITH CARON}
+lu\N{LATIN SMALL LETTER T WITH CARON}ou\N{LATIN SMALL LETTER C WITH C
+ARON}k\N{LATIN SMALL LETTER Y WITH ACUTE} k\N{LATIN SMALL LETTER U WI
+TH RING ABOVE}\N{LATIN SMALL LETTER N WITH CARON}"});
my $encoded = encode('UTF-8', $decoded);

my $structure = decode_json($encoded);
binmode *STDOUT, ':encoding(UTF-8)';
say $structure->{'yellow horse'};

[download]

Note that I also set the encoding of the output handle.

I can't show you how to set the encoding/decoding properly for the database as you haven't told us what driver you use.

NOTE: In real life, I'd use use utf8; and type "žluťoučký kůň" directly in the script, but PerlMonks can't display code containing non-latin1 characters. Some people even recommend to write your code this way, but I find utf-8 more readable.

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In reply to Re: Substitute and converting to UTF8 by choroba
in thread Substitute and converting to UTF8 by tomred

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