For the life of me, i can't figure out a ruby equivalent to perl's /g

basically, i want to do the following


while htmlSource=~m/<table>(.*?)<\table>/g do
   tableSource=$1
   tableSource=~m/Index (\d+)/
   indexNumber=$1

   while tableSource=~m/<tr>(.*?)<\/tr>/g do
      tableRowSource=$1
      doSomethingWith(tableRowSource, indexNumber)
   end#while tableSource

end#while htmlSource


I will actually need to pull multiple vars, not just a single one,
from the regex
I will need to do the outer loop an unknown amount of times per
document (0-20) and i will need to loop the inner an unknown amount of
times (0-29)


Thread safe would be a plus.


any suggestions?