"Jo-Anne" <
Jo-...@nowhere.com> wrote
| ��� Actors: Melvyn Douglas, Shirley MacLaine, Peter Sellers
| ��� Directors: Hal Ashby
| ��� Format: Special Edition, Subtitled, Widescreen
|
| Any idea of what's happening and what I can do to stop it?
|
Maybe try View -> character encioding -> UTF-8?
It's a complex issue and your case seems to be quirky.
I don't know what was on the webpage, but the text
you pasted is UTF-8 code for 3 question marks in diamonds.
The character values are EF BF BD.
http://www.cogsci.ed.ac.uk/~richard/utf-8.cgi?input=%F6&mode=char
That is, 3 bytes are used to display each question mark.
You're seeing ANSI text, so you see those bytes as each
being a character. The question is why there are 3 ?
in diamonds in the first place. Maybe they were supposed
to be emoticons or something you don't have a font for?
I'm not sure. In other words, you're seeing a corruption
of text that's of no value to you, anyway. :)
The problem arises because there are different ways
to render byte values, according to different text encodings.
Everything is always bytes, or numerical values. In
a text file those bytes represent characters. But there
are different ways to do that.
ASCII text uses 0-128 values in a byte to display
English characters and a few others -- basically what's
on your keyboard. In the early days that was all anyone
needed.
ANSI, which was most common until recently, uses all
256 values in a byte. One byte per character. What's
displayed depends on the system "codepage". The first
128 are ASCII, but from 128-255 depends on language
settings. In other words, on your computer, EF in ANSI
(charcter 239) is an i with an umlaut. On a Russian
machine it will probably be a Russian character. In UTF-8,
in this case, it's only part of the code for one character.
Mike Easter referred to "char set 1252". That's the ANSI
codepage most commonly used for Western text. English
is 1033. Codepage, character set, character encoding...
those are all referring to how ANSI text is displayed about
byte value 127.
ANSI allows Western characters to be represented
by one byte. With globalization that's not good enough.
Languages like Japanese and Chinese won't fit. In order
to fit all characters we have unicode, which uses 2 bytes.
0-128 are still ASCII. Beyond that, there are about 65K
more characters.
UTF-8 is a compromise. Rather than use 2 bytes for
all characters and break a lot of software, it's a way
to render unicode as multi-byte, in which most Western
characters don't have to be changed. So it's less of
a jarring transition than it would be to suddenly convert
everything to 2-byte unicode. UTF-8 has become the
standard in most webpages. UTF-8 is still ASCII for byte
values 0-128, but beyond that it uses 1-4 bytes to display
a character. So "quick brown fox" is identical at the byte
level in ASCII, ANSI, or UTF-8. But emoticons, various
marks, and non-Western languages are displayed using
1-4 bytes.
So what does all that mean? Usually it's not an issue.
That's probably why you haven't seen a problem before.
If you see funky characters you can try viewing as UTF-8.
In this case it's best to just remove the text. It serves
no purpose for you.
In browsers you usually won't have to be concerned.
The webpage encoding tells the browser how to interpret
the text. The one place where a problem might arise would
be if you save a UTF-8 encoded webpage, edit it, then
save that as ANSI text. You could end up with stuff like
capital A with an accent over it littering the page. Microsoft
is one site that does that. They use UTF-8 for spaces and
curly quotes, even though the webpage is in English. The
result is that it has to be kept as UTF-8 or else the
corrupted characters (from ANSI point of view) have to
be removed.
For the record, Notepad has handled different encodings
for a long time. When you save a file you'll see you have
options. If you try to save one encoding type as another,
Notepad will warn you. You could play around with that
to get a sense of the differences.