Re: File name completion with non-ascii filenames

[Richard Stallman]

    If we had a way to downcase encoded text, we could solve this with a 
    suitable modification to the DOWNCASE macro.

It is possible to downcase encoded text by decoding it into multibyte,
downcasing it, and re-encoding it.  Will this do the job?

    What is needed here is many case-conversion tables for unibyte 
    characters, one each for every encoding we support.

We have that information in the case table for multibyte characters.

To make many additional case tables as you're proposing seems like a
lot of duplication, mostly wasteful--so I'm against it.