Abhijit Menon-Sen <a...@2ndquadrant.com> writes:
> At 2014-06-30 15:19:17 -0400, t...@sss.pgh.pa.us wrote:
>> Anyway, this raises the question of whether the current patch is
>> actually a desirable way to do things, or whether it would be better
>> if the unaccenting rules were like "base-char accent-char" ->
>> "base-char".

> It might be useful to be able to write such rules, but it would be
> highly impractical to do so instead of being able to single out
> accent-chars for removal.

On reflection, if we were thinking of this as a general
substring-replacement mechanism rather than just a de-accenter
(and why shouldn't we think of it that way?), then clearly both
multi-character source strings and zero-character substitute strings
could be of value.  The fact that the existing patch only fixes
one of those omissions isn't a strike against it.

                        regards, tom lane

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