search for: london2012

Can someone help me with the code I can use to extract word preceded by hash tag in live tweets download from twitteR. An example of what I require is: [[9]] [1] "HollandUKTrade: #Dutch companies striking Olympic gold at London 2012 http://t.co/XsvvXAzT #london2012 #olympics #sport @hollandtrade @dutchembassyUK" (Tweet download) I want a code that will extract this: #Dutch companies #london2012, #olympics, #sport I have used the under-listed code in Stringr which return these outputs I did not require: > str_extract_all("#<-a-z, #<-A-Z&q...