Re: Commands based on previously defined commands, DA with fixed values for šrguments

[Arthur Reutenauer <arthur.reutenauer@normalesup.org>]

  Even if this is completely unrelated to ConTeXt, allow me to mention
this since I find it so funny:

  The message to which I'm replying has the following weird subject:

# Subject: Re: [NTG-context] Commands based on previously defined commands,
# 	DA with fixed values for šrguments

  Notice the word "DA" at the beginning of the second line, and the word
"šrguments"?  This was obviously not in Vedran's original message:

# Subject: [NTG-context] Commands based on previously defined commands,
#         with fixed values for   arguments

  Let me venture an explanation about how this happened: when replying
to the first message, René's e-mail transformed the subject as such:

# Subject: [NTG-context]
# 	=?UTF-8?Q?Re:__Commands_based_on_previously_defined_commands,
# 	=D=A_with_fixed_values_for_=9arguments?=

  This is quoted-printable, where all the characters but the "basic"
ones are quoted using their code point in the current encoding (here
UTF-8): hence the end line characters (carriage return + line feed) have
been rewritten as =D and =A respectively, in hexadecimal (it's 13 and 10
in decimal), and the tabulation character as =9 (for some reason, there
was a tab before the word "arguments").  But this is actually not
correct, the character codes should be formatted using two hexadecimal
digits (hence =0D, =0A and =09).  This is probably why when replying to
René, Vedran's e-mail agent has interpreted the "=D" and "=A" sequences
as plain 'D' and 'A', and, upon seeing the sequence "=9arguments", it
has use the letter 'a' in "arguments" as an exadecimal digit!  Which it
has interpreted as a Windows-1252 character (Microsoft's extension of
latin-1), where 0x9A is 'š', thus producing this rather weird result.

  This is a particularily disturbing example of mojibake
(http://en.wikipedia.org/wiki/Mojibake).

	Arthur
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