string-sort-key

Arguments: string &key ucet start end overwrite

This function returns a string suitable for passing to string< and string> so that string will be correctly compared to other strings also passed to string-sort-key.

The ucet argument is a ucet object as returned by parse-ucet. If unsupplied, a ucet object created from the Default Unicode Collation Element Table is used.

start and end specify what portion of string should be considered. overwrite specifies whether string can be modified.

See String collation with international characters in iacl.htm.

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Created 2015.5.21.