How to mixin repeated text?

[Andrey]

Hello again,
I have this part of code:
> ...
>if(index + 3 >= data.length || data[index + 1][0] == '&' || 
>data[index + 2][0] == '&' || data[index + 3][0] == '&' || 
>data[index + 4][0] == '&')
>{
>    writeln("Some text...");
>}

I don't want to write manually these four "or" conditions because 
in each case I know at compile time how many conditions should be.
I would be great if I could do something like this:
>if(index + 3 >= data.length || mixin OrCondition!4) { ... }

where "OrCondition" will insert text using this expression:
> data[index + j][0] == '&' // j is between [1 and 4]

I know that it is possible but don't know how to implement...