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This page is part of the web mail archives of SRFI 13 from before July 7th, 2015. The new archives for SRFI 13 contain all messages, not just those from before July 7th, 2015.

   It's only used by the string-contains[-ci] procedure, and that
   procedure may as well be implemented using Boyer-Moore.

You can't use Boyer-Moore with large character types -- it requires you
to build a table with one entry for every possible character. Hence
not really useable for anything past Latin-1.

In fact, I have an implementation of B-M. I just don't *export* it into
the library's API as such, because it isn't portable across character types,
which is one of the design criteria of the lib.