import re


def vertical_sep_in_line(line):
    """
    Find the indices in a line which are potentially or probably
    vertical separators (characters commonly used to indicate
    the end of columns).
    """
    VERTICAL_SEP = r"[+|\.`'╔╦╗╠╬╣╚╩╝┌┬┐╞╪╡├┼┤└┴┘]"
    return [m.start() for m in re.finditer(VERTICAL_SEP, line)]