Re: RegExp: match everything except a certain string

[Andreas Röhler]

Am Dienstag, 20. November 2007 17:08 schrieb Sven Bretfeld:
> Hello to all
>
> A RegExp beginner's question again. I cannot find a way to search for
> a regexp that matches everything except of one certain string. The
> problem is:
>
>  author = {somename},
>  editor = {},
>  title = {sometitle},
>  subtitle = {},
>  series = {},
>  url = {}
>
> I want to find a regexp that matches every line with empty {} except
> of the "subtitle line". I've come that far:
>
> ^ \<[^s].* = {},*
>
> But this one also excludes the "series line", of course. I was
> thinking of \<[^s][^u] but this doesn't work, since, then, the initial
> s of "subtitle" is matched again.
>
> What is the syntax for find .* except of the string "subtitle"? I
> didn't recognize this in the Lisp info.
>
> Thanks for help
>
> Sven


Got it with:

[^s]?[^u]?[^b]?[^t]?[^i]?[^t]?[^l]?[^e] = {},?$

Please don't ask why :)

Anyway--you will know that and it's not the precise
answer-- it might be useful to point at

M-x shell-command-on-region

grep {} | sed /subtitle/d

as an easy-to-use solution.

Andreas Röhler