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bug#33167: 26; Doc string of `region-extract-function'


From: Eli Zaretskii
Subject: bug#33167: 26; Doc string of `region-extract-function'
Date: Sat, 27 Oct 2018 22:23:08 +0300

> Date: Sat, 27 Oct 2018 12:02:55 -0700 (PDT)
> From: Drew Adams <address@hidden>
> Cc: address@hidden
> 
> But if the spec of the variable imposes nothing on the BEG
> and END values passed for filtering, then why does it impose
> a requirement that `filter-buffer-substring' must be called?

So that applications could rely on that, and could provide their own
filter functions, if they want.





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