are used interchangeably.)
There are many, many code points, but computers work with bytes, and a byte has
-room for only 256 values. Unicode has many more characters, so you need a
-method to make these accessible.
+room for only 256 values. Unicode has many more characters than that,
+so you need a method to make these accessible.
Unicode is encoded using several competing encodings, of which UTF-8 is the
most used. In a Unicode encoding, multiple subsequent bytes can be used to
irrelevant here, and so are encodings. Each character is just that: the
character.
-Text strings are also called B<Unicode strings>, because in Perl, every text
-string is a Unicode string.
-
On a text string, you would do things like:
$text =~ s/foo/bar/;