Parsing Text file

[Neil Cerutti]

On 2013-07-02, sas429s at gmail.com <sas429s at gmail.com> wrote:
> I have a text file like this:
>
> Sometext
> Somemore
> Somemore
> maskit
>
> Sometext
> Somemore
> Somemore
> Somemore
> maskit
>
> Sometext
> Somemore
> maskit
>
> I want to search for the string maskit in this file and also
> need to print Sometext above it..SOmetext location can vary as
> you can see above.
>
> In the first instance it is 3 lines above mask it, in the
> second instance it is 4 lines above it and so on..
>
> Please help how to do it?

How can you tell the difference between Sometext and Somemore?

-- 
Neil Cerutti