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Code points is an abstraction, it's an internal Perl thing.

What are you talking about? It has nothing to do with Perl. "e" is formed from the code point U+0065, "" is formed from code point U+00E9 or from code points U+0065 + U+0301, etc. This is defined by The Unicode Consortium, not by Perl.

It must produce a bunch of bytes.

No, the input must be a string of integers in 0..255, which it is. print has no problem storing those as bytes. iso-latin-1 doesn't factor into it.

In which of the following is does print use iso-latin-1?

use utf8; my $s1 = inet_aton('195.169.195.171'); print($s1); my $s2 = encode_utf8(""); print($s2); my $s3 = "éë"; print($s3); my $s4 = "\xC3\xA9\xC3\xAB"; print($s4);

The only two possible answers are "all of them" or "none of them", since print can't tell the difference between those strings.

If you claim that iso-latin-1 is used, then you claim that use utf8; produces iso-latin-1. It doesn't. It produces Unicode code points.

That prints garbage instead of ''.

Because the terminal expects bytes of UTF-8, but it got bytes of Unicode code points.


In reply to Re^4: Default encoding rules leave me puzzled... by ikegami
in thread Default encoding rules leave me puzzled... by kzwix

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