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somecommand 4       # run index 4 from the command table
somecommand 4-6     # run indices 4,5,6 from the command table
somecommand 5-      # run indices 5,6,7,8,9,10 from the command table
somecommand -2      # run indices 0,1,2 from the command table

use strict;
use warnings;
...
}
my @apples = ( ":zero:", ":one:", ":two:", ":three:", ":four:" );
print "apples ", @apples[range_to_list( $#apples, "1-3" )], "\n";

maxind=10
rstr:x:...exc:range_to_list, 'x' not numeric at rl.pl line 21.
...
rstr:10-:...ret:10:
rstr:11-:...exc:range_to_list, '11' out of range at rl.pl line 34.
apples :one::two::three: