trans range character into seq characters
Examples
rng2seq(c("1-5", "2"))
#> [[1]]
#> [1] "1" "2" "3" "4" "5"
#>
#> [[2]]
#> [1] "2"
#>
trans range character into seq characters
rng2seq(c("1-5", "2"))
#> [[1]]
#> [1] "1" "2" "3" "4" "5"
#>
#> [[2]]
#> [1] "2"
#>