Function template prev_grapheme_break
boost::text::v1::prev_grapheme_break
Synopsis
template<code_point_iter I, std::sentinel_for< I > S>
I prev_grapheme_break(I first, I it, S last);
Description
Finds the nearest grapheme break at or before before it. If it == first, that is returned. Otherwise, the first code point of the grapheme that it is within is returned (even if it is already at the first code point of a grapheme).
