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..."8" "5:7" "10" Finally, parse() the vector, eval() each element, and unlist() the resulting list of numeric vectors: > unlist(lapply(parse(text=x2),eval)) #giving, as desired, [1] 1 2 3 4 5 3 4 5 6 4 8 5 6 7 10 This seems far too clumsy and circumlocuitous not to have a more elegant solution from a true regex expert. (Special note to Thomas Lumley: This seems one of the few instances where eval(parse..)) may actually be appropriate.) Cheers to all, Bert -- Bert Gunter Genentech Nonclinical Biostatistics

...t;10" > > Finally, parse() the vector, eval() each element, and unlist() the > resulting list of numeric vectors: > >> unlist(lapply(parse(text=x2),eval)) #giving, as desired, > [1] 1 2 3 4 5 3 4 5 6 4 8 5 6 7 10 > > > This seems far too clumsy and circumlocuitous not to have a more > elegant solution from a true regex expert. > > (Special note to Thomas Lumley: This seems one of the few instances > where eval(parse..)) may actually be appropriate.) > > Cheers to all, > > Bert > > -- > Bert Gunter > Genentech Nonclinica...