Accent Folding for Auto-Complete

An accent-folding function essentially maps Unicode characters to ASCII equivalents. Anywhere you apply case-folding, you should consider accent-folding, and for exactly the same reasons. With accent-folding, it doesn’t matter whether users search for cafe, café or even çåFé; the results will be the same.

via A List Apart: Articles: Accent Folding for Auto-Complete.

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