ingle_line, escapes, balanced</em>)</h3>

    <p>Creates and returns a pattern that matches a range of text bounded by strings
    or patterns <em>s</em> and <em>e</em>.
    This is a convenience function for matching more complicated ranges like
    strings with escape characters, balanced parentheses, and block comments
    (nested or not). <em>e</em> is optional and defaults to <em>s</em>. <em>single_line</em> indicates
    whether or not the range must be on a single line; <em>escapes</em> indicates
   