def get_re_for_font_glyphs(font_abbreviation, glyphs):
    """Function to get the regex for unwanted glyphs"""
    font_awesome_regex = ['(?i)(?<=}})\\s*(\\.{}-(?!('.format(
        font_abbreviation), '):)[0-9a-z\\-]*:before,\\s*)*\\.{}-(?!('.
        format(font_abbreviation),
        '):)[0-9a-z-]*:before\\s*{\\s*content:\\s*"\\\\?\\w+"[^\\}]*\\}']
    unused_selector = ['(?i)\\.{}-(?!('.format(font_abbreviation),
        '):before)[^.]*?:before,?']
    return [('|'.join(glyphs).join(font_awesome_regex), ''), ('|'.join(
        glyphs).join(unused_selector), '')]
