Re: Eliminating repetitious "Re: Re: Re: ..."

[ShengHuo ZHU <zsh@cs.rochester.edu>]

Karl Kleinpaste <karl@charcoal.com> writes:

> I want to repair this damage done to Subject lines, notably in mailing
> lists which have standard tokens in them.
> 
> For example, and as I'm sure everyone knows, you get a mailing list
> which automatically prepends "[foo]" to every subject line if it is
> not already present:
>     Subject: [foo] the original subject
> Normal followups to this, in the absence of other hackery, become:
>     Subject: Re: [foo] the original subject
> Egroups and related list-support sites will leave this one alone,
> because the needed "[foo]" token is in place.  But then we Gnusers
> come along, knowing that we don't need no steenkin' subject tokens,
> and so we strip them out:
>     (setq nnmail-list-identifiers '("\\[foo]"))
> so that what we see is:
>     Subject: the original subject
> and when we reply, we generate:
>     Subject: Re: the original subject
> List handlers decide this is inadequate, so they re-append the token:
>     Subject: [foo] Re: the original subject
> and then some non-Gnuser follows up, generating
>     Subject: Re: [foo] Re: the original subject
> which the list-identifier-stripping Gnuser will subsequently see as:
>     Subject: Re: Re: the original subject
> 
> The patch below addresses this during nnmail-list-identifiers
> processing, detecting repeated occurrence of "Re: " and reducing it to
> just one.

What if the header is
     Subject: [foo] Re: [foo] Re: [foo] Re: the original subject

Actually, article-hide-list-identifier and
gnus-summary-remove-list-identifiers have done this, but the
limitation is that \( and \) can not be included list-identifiers.
Could you find a better solution for all of these functions?

ShengHuo

-- 
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