If you just want the pattern, here ya go.
For the more curious…
This was surprisingly difficult, for the multiline comments anyways…
Rougly translated into “slash star anything star slash”. But no – something about dot not catching new lines (even though in other cases it seems to do so just fine…)
So the next thought is “any number – or none – of spaces or non-spaces”:
I’m still not sure why, but this was gobbling up not just the comments (like it should) but large portions of stuff it shouldn’t be eating…
A search of SO lead me to this post, which looked almost identical to my last try, but added a “?” after the star…
Now AFAIK, the ? means “one of the preceding if available, ignore if not”… So /123?/ matches 123 and 12. The star means “any number or none of the preceding”, so /12*3/ matches 123 or 13, but not 12. So why does *? make it work? No idea…
Moving on… Single-line comments are obvious:
Which is “slash slash (anything) (end-of-line)”. The “end of line” needs the “m” (multiline) modifier to work (the “m” modifier means “treat line breaks as end of string” – if not present, the dollar sign matches the actual end of the string, not line breaks).
So they get married and have a baby: