set-case-syntax-delims
set-case-syntax-delims is a compiled Lisp function in `case-table.el
'.
(set-case-syntax-delims L R TABLE)
Make characters L and R a matching pair of non-case-converting delimiters.
This sets the entries for L and R in TABLE, which is a string
that will be used as the downcase part of a case table.
It also modifies `standard-syntax-table' to
indicate left and right delimiters.