Function template prev_hard_line

Function template prev_hard_line_break

boost::text::v1::prev_hard_line_break

Synopsis

// In header: <boost/text/line_break.hpp>


template<code_point_range R> 
  std::ranges::borrowed_iterator_t< R > 
  prev_hard_line_break(R && r, std::ranges::iterator_t< R > it);

Description

Finds the nearest hard line break at or before before it. If it == r.begin(), that is returned. Otherwise, the first code point of the line that it is within is returned (even if it is already at the first code point of a line). A hard line break follows any code points with the property BK, CR (not followed by LF), LF, or NL.

Returns a grapheme_iterator to the nearest hard line break at or before before it. If it == r.begin(), that is returned. Otherwise, the first grapheme of the line that it is within is returned (even if it is already at the first grapheme of a line). A hard line break follows any code points with the property BK, CR (not followed by LF), LF, or NL.