Matchall()
matchall(<string>,<pattern>[,<delim>])
This function works identically to the match() function, save that it returns all matches, not just the first: It returns the index numbers of all words in the list <string> which match <pattern>.
Example
> say matchall(This is a test of a test,test)
You say, "4 7"
> say matchall(This is testing a test,tes*)
You say, "3 5"