use ./row-indices.nu *

# Selects one or more rows while keeping
# the original indices.
#
# Example - Selects the first, fifth, and
# sixth rows from the table:
#
# ls / | select ranges 0 4..5
#
# Example - Select the 5th row:
#
# ls / | select 5
#
# Example - Select the 4th row.
# Note that the difference beteen this
# and `select 3` is that the index (#)
# column shows the *original* (pre-select)
# position in the table.
#
# ls | select ranges 3
export def "select ranges" [ ...ranges ] {
  enumerate
  | flatten
  | select ...(row-indices ...$ranges)
}