Re: Unquoted special characters in regexps

[martin rudalics]

> Apart from correcting the bug we are discussing, it also corrects
> another misstatement:
>
>     For example, a string with unbalanced square brackets is invalid
>     (with a few exceptions, such as `[]]'),
>
> That is incorrect as the examples below show.
>
> ELISP> (string-match "]]]]" "]]]]")
> 0
> ELISP> (string-match "[[]" "[")
> 0

Your example doesn't show that.  You reason about validity in presence
of a sentence like

      *Please note:* For historical compatibility, special characters
   are treated as ordinary ones if they are in contexts where their
   special meanings make no sense.