From: Josef 'Jupp' Schugt <jupp@...>
Date: 2003-04-03T09:05:55+09:00
Subject: Re: parsing/decoding mail/news headers

Saluton!

* Martin Pirker <crf@sbox.tu-graz.ac.tgtegegerfrwfdweeeedef.at>; 2003-04-02, 00:27 UTC:
> In RMail in found header/address parsing functions (nice stuff!), but I
> still havn't figured out how to decode the header parts which have been
> encoded for 7-bit(?) compatibility,

ASCII that is.

> 
> e.g. given
> Subject: =?ISO-8859-1?Q?Erg=E4nzung?=
> 
> should decode to
> Subject: Erg�nzung
> 
> (that's a german word)

Synonym: Addendum

If you want to convert this to ordinary Latin-1 text:
If header matches '=?ISO-8859-1?Q?' (read in text up to terminating
'=') then repace =AF by \0xAF. Quick and dirty but works. To a lesser
degree this also works with Codepage-1252 (Windows) and Latin 9
(ISO-8859-15). CP1252 defines characters not defined in ISO charsets
whereas ISO-8859-15 replaces some of the ISO-8859-1 characters. See
'Character Encoding' on my homepage.

I have tables that show what Hexcodes map to which Unicode number for
quite a lot of character sets. I don't have any CJK, sorry but I at
least have VISCII.

Gis,

Josef 'Jupp' Schugt       http://jupp.tux.nu       jupp(AT)gmx(DOT)de
-- 
"If this were a dictatorship, it'd be a heck of a lot easier...just
as long as I'm the dictator..."   -- George W. Bush on 2000-12-18 at
                                     Washington, District of Columbia