Re: Unquoted special characters in regexps

[Richard Stallman]

      For the new version `regexp-opt' would generate `\\[bar]'.
    The resulting expression would read as `\\[foo\\]\\[bar]' which is
    confusing since two different styles are involved.  The user would have
    to manually change `\\]' to `]' (or `]' to `\\]') to get a uniform
    appearance.

That seems like no big deal.