> Case folding can be done in one or two ways, simple and full Oh, it's worse than that. There can be locale specific tailorings of case folding rules. By th

> Case folding can be done in one or two ways, simple and full Oh, it's worse than that. There can be locale specific tailorings of case folding rules. By the way, do not confuse case-folding mappings with case mappings for up- and down-casing. These are different in Unicode. Also, don't think this is Unicode's fault. This is the fault of humans for creating such rich scripts and languages and rules.