Remove substring with regular expressions

Question

I need to remove substring from this string (of course, the original is longer)

case 'meter': xy=1; //meter square break; case 'decimeter_square': xy=1E2; //decimeter square break; case 'centimeter_square': xy=1E4; //centimeter square break; case 'milimeter_square': xy=1E6;

The text is in one single line and I need the output this like this:

case 'meter': xy=1; break; case 'decimeter_square': xy=1E2; break;
case 'centimeter_square': xy=1E4; break; case 'milimeter_square':
xy=1E6;

So I need to remove everything after the '//' and before 'break'

Thanks everybody for advice

Answer 1

replace regex pattern //.*?break; with //break;