RE: locale-aware string comparisons

From: Shawn Steele <>
Date: Wed, 2 Jan 2013 19:07:07 +0000

I'd try to avoid making a dependency where case mapping needs to be the same as case insensitive comparisons.

I'd either always case fold then compare, or always compare case insensitive.


-----Original Message-----
From: [] On Behalf Of James Cloos
Sent: Tuesday, January 1, 2013 5:43 PM
To: Mark Davis ☕
Cc: Whistler, Ken;
Subject: Re: locale-aware string comparisons

>>>>> "MD" == Mark Davis ☕ <> writes:

MD> All of these are different, all of them still have over 200
MD> differences from either compare(lower(x),lower(y)) or compare(upper
MD> (x),upper(y))

What about, then:

  compare(lower(x),lower(y)) || compare(upper(x),upper(y))

Or, to emphasize that I mentioned C only as a pseudocode, akin to SQL:


Would that cover all of the outliers?


James Cloos <>         OpenPGP: 1024D/ED7DAEA6
Received on Wed Jan 02 2013 - 13:14:22 CST

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