Re: How to match lines containing patternA but not containing patternB?

On 10/03/11 14:07, superfish wrote:
> Facing with a data file which contains more than 7 million lines, I need to
> delete all lines containing<patternA> but not containing<patternB>.
> So far the only way I can think of is kind messy, something like this:
>
> :g/<patternB>/s/<patternA>/<patternC>/
> :g/<patternA>/d
> :%s/<patternC>/<patternA>/
>
> But I really like to know how this can be done in a better way, like a
> single global replacement command or something.

Dr. Chip's LogiPat.vim makes this less painful. A quick test
suggests that you're looking for something like

:g/\%(.*patternA.*\&^\%(\%(patternB\)\@!.\)*$\)/d

-tim

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