Re: Unquoted special characters in regexps

[martin rudalics]

Andreas Schwab schrieb:
> martin rudalics <address@hidden> writes:
>
>
> >         * font-lock.el (lisp-font-lock-keywords-2)
> >         * emacs-lisp/rx.el (rx-check-any, rx-check-not)
> >         * generic-x.el (reg-generic-mode): Quote "]"s in regexps when
> >         they have no special meaning.
>
>
> ']' is not special in regexps.
>
> Andreas.
From the Elisp manual:

34.3.1 Syntax of Regular Expressions
------------------------------------

Regular expressions have a syntax in which a few characters are special
constructs and the rest are "ordinary".  An ordinary character is a
simple regular expression that matches that character and nothing else.
The special characters are `.', `*', `+', `?', `[', ------> `]' <------, `^', 
`$', and
`\'; no new special characters will be defined in the future.  Any
other character appearing in a regular expression is ordinary, unless a
`\' precedes it.