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Re: Character folding in the pretest


From: Werner LEMBERG
Subject: Re: Character folding in the pretest
Date: Thu, 04 Feb 2016 18:05:23 +0100 (CET)

>> This is interesting. I guess it boils down to whether you're trying
>> to avoid false positives or false negatives.  For me the strength
>> of this feature is that it lets me find virtually anything using an
>> dumb keyboard (one without easy access to accents); I don't care
>> too much about false positives (that is, I don't mind if ‘n’ finds
>> ‘ñ’).  In that sense, it doesn't matter if letters "are different";
>> all that matters is whether they look different.  I imagine that's
>> why the Unicode standard defined things that way.  It seems this
>> behavior is consistent with that of most online search engines (I
>> tried Google, Bing, and DuckDuckGo; all return accented matches for
>> unaccented keywords).
> 
> I see your point, but you are talking about accents all the time.
> In Spanish `n' and `ñ' are different letters.  `n' matching `ñ' is
> no different than `p' matching `q'.  I think that you will agree
> that some of us will see that behavior as a glaring bug.

This naturally leads to a possible user option: Having `optical'
matches or not, where `optical' means `base character plus diacritic
and/or slight modifications', e.g., o → ø → ö etc., etc.


    Werner

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