class Reline::LineEditor

def ed_prev_char(key, arg: 1) 

def ed_prev_char(key, arg: 1)
rsor > 0
_size = Reline::Unicode.get_prev_mbchar_size(@line, @byte_pointer)
e_pointer -= byte_size
ar = @line.byteslice(@byte_pointer, byte_size)
h = Reline::Unicode.get_mbchar_width(mbchar)
sor -= width
@is_multiline and @config.editing_mode_is?(:emacs) and @byte_pointer == 0 and @line_index > 0
_line = @buffer_of_lines[@line_index - 1]
sor = calculate_width(prev_line)
e_pointer = prev_line.bytesize
sor_max = calculate_width(prev_line)
vious_line_index = @line_index
e_index -= 1
 1
v_char(key, arg: arg) if arg > 0