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Here's a test that I tried. The first two tests fail as they should. The last 2 tests succeed.
#!/usr/bin/perl -l BEGIN { $| = 1; $^W = 1; $ENV{'TEST_VERBOSE'} = 1; } use strict; use warnings; use Test::utf8; use Test::More tests => 4; use Encode qw/:all/; my $invalid = "\x{e9}"; Encode::_utf8_on($invalid); ok(is_valid_string($invalid)); my ($buffer, $string) = ('', ''); while (read $invalid, $buffer, 256, length $string) { $invalid .= decode( 'utf-8-strict', $buffer, Encode::FB_QUIET ); } Encode::_utf8_on($string); ok(is_valid_string($string));
The $buffer should hold any partial incrementation.

In reply to Re: incremental reading of utf8 input handles by Khen1950fx
in thread incremental reading of utf8 input handles by Tanktalus

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