Hi, I'm trying to fix a bug in a script. The section of code in question converts a string supplied on the command line to a format suitable for a changelog (which is required to be utf-8). The reduced script below works for ASCII text, but not when the string contains high-bit or multi-byte characters. For example, passing "l'été sera chaud" produces 
  * l'été sera chaud
    ud

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The characters on the second line are always the final n characters from the first, where n is the number of non-ASCII characters in the string; I'm therefore guessing this is a bytes vs characters issues. Could anyone suggest a solution? 
#!/usr/bin/perl

use strict;
use warnings;
use open ':utf8';
use Encode 'decode_utf8';

my $CHGLINE = decode_utf8(join(" ", @ARGV));
open O, ">testout";

format O =
  * ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$CHGLINE
 ~~ ^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$CHGLINE
.

write O;
close O;

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In reply to Format eating too few characters with utf-8? by adsb

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