[Dovecot] header search for splitted word

[Timo Sirainen]

On Fri, 2004-12-24 at 20:19 +0900, Kazuo Moriwaka wrote:
> I wrote a patch for header search about a word over two lines. 
> Please check it.
> 
> For example, following header string contains a word 
> splitted into two mime encoded block. It's normal behavior of 
> MUAs in CJK environment.
> 
> Subject: =?ISO-2022-JP?B?Sk1CGyRCJUQlIiE8JUslZSE8JTkhIRsoQkpBTBskQiVBJWMhPCU/GyhC?=
> 	=?ISO-2022-JP?B?GyRCITxKWCRHOVQkLxsoQiAbJEI0WjlxGyhCLxskQiVRJWklKhsoQi8bJEIlNSUkJVElcxsoQg==?=

The way UW-IMAP (and probably others) do it is that they check if MIME
block continues with another MIME block. If it does, the spaces between
them are ignored.

I think I'll do it that way for Dovecot, but with the current code it's
not that simple change. Maybe it's time for larger fixes in searching
code..
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