At 17:27 -0400 7/17/10, Chance Reecher wrote:
>>  Q: what is plain
>> text? and how do I make sure that I'm always using it? I thought it was
>> simply in a font everybody had (helvetica) and that there was/is no
>> pictures? evidently that apple is a picture? Jeff


It's getting more and more difficult to send plain text to us users of ASCII 
with a bit of ASCII extended.

The Apple mail client will do it but it's hard to figure out how.
Eudora does it well but is no longer supported

Gmail really likes HTML which is the real offender. An older form of enriched 
text is obsolete and truly dead.

Plain text allows the reader and the reader only to set his font. Attachments 
are OK but inserted graphics are not. On a list attachments ore usually taboo 
anyway.

Look at the source of displayed e-mail for the Content-Type: header to see if 
you got it right..

For Kris Tilford it's this.
Content-Type: text/plain; charset=UTF-8; format=flowed

Some would say that UTF-8 is NOT plain text. It does mean that there are no 
"high ASCII" characters above 127 (10) which would include the black apple. If 
you don't do UTF-8 with your client you'll see three funny characters which 
some client translated the black appl into. In UTF-8 any character above 127 is 
treated as a flag that says you need to include the previous two characters in 
a bit shifting way that yields a 16 or 24 bit extended character.

format=flowed is a mechanism for sending long lines meaning greater than 80 
characters. It was once useful for very slow communications mostly over 
telephone connections. Teletype was truly limited to 80 character buffers. 
Today essentially all SNTP and POP servers handle 1024 character lines which 
will be wrapped to window width be the receiving client.

format flowed can really muck up a URL that runs over a line end. Apple mail 
uses a delsp=yes extension to format-flowed which is not handled by Eudora and 
probably other clients found on old Apples.  It's a mess when URL's acquire 
spaces in transmission.

>From Jeff we got:
Content-Type: text/plain; charset=UTF-8; format=flowed; delsp=yes

Kris' second posting used this:
Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes

The ISO encoding applies to characters above 127 and that one would surely not 
have a dark apple in it. The dark apple probably requires an Apple font to be 
viewed.  Chicago perhaps.

JUST DON'T SEND HTML!  Well, there are reasons for it but rarely, if at all, on 
a mailing list that's for users of older machines.
-- 

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