Hi Stephan What you mention is an edge case. A regular case which is not implemented yet is language insensitive sorting http://www.unicode.org/versions/Unicode8.0.0/UnicodeStandard-8.0.pdf <citation> In some circumstances, an application may need to do language-insensitive sorting—that is, sorting of textual data without consideration of language-specific cultural expectations about how strings should be ordered. </citation> This is currently not the case as there is no normalization. As the Unicode Character Database [1] is already available in Squeak / Pharo (and could easily be loaded into Cuis) the implementation effort for language-insensitive sorting seems to be in reach without a big effort. [1] http://wiki.squeak.org/squeak/6244 Hannes On 12/9/15, Stephan Eggermont <stephan@stack.nl> wrote:

On 08-12-15 22:35, Dale Henrichs wrote:

...

What I meant is that you can't _always_ use the code point for collation, i.e., sorting based on the value of code points is not always correct[1].

I have given up on universal sorting when I learned that dutch libraries sorting of author names depends on the country of origin of the author. So if Jan van Beek is dutch he will be sorted under B, while if he's belgian under V. I haven't checked what happens if the author emigrates, or changes nationality...

Stephan