return y < line.starty + State.line_height*(#line.screen_line_starting_pos - Text.screen_line_index(line, line.startpos) + 1)

  return y < line.starty + State.line_height*(#line.screen_line_starting_pos - Text.screen_line_index(line.screen_line_starting_pos, line.startpos) + 1)

  local start_screen_line_index = Text.screen_line_index(line, line.startpos)

  local start_screen_line_index = Text.screen_line_index(line.screen_line_starting_pos, line.startpos)

function Text.screen_line_index(line, pos)
  for i = #line.screen_line_starting_pos,1,-1 do
    if line.screen_line_starting_pos[i] <= pos then

function Text.screen_line_index(screen_line_starting_pos, pos)
  for i = #screen_line_starting_pos,1,-1 do
    if screen_line_starting_pos[i] <= pos then