tag --add TAG --at=POSITION — To insert tag(s) at a desired position

[porg]

• I agree that preservation and control of tag order is extremely important
  • Hence I support Controlling Tag Order #53 overall
• Specifically for the --add action I propose to offer an optional extra positional argument --at
  • The argument value is a prefix (+, ++, -, --) combined with a number, where +0 is the start and -0 the end position.
  • +0 Insert at start
  • +n Insert at n-th position from the start. If non-existent then at the start.
  • ++n Insert at n-th position from the start. If non-existent then at the end
  • -0 Insert at the end.
  • -n Insert at n-th position from the end. If non-existent then at the end.
  • --n Insert at n-th position from the end. If non-existent then at the start.
• The tag(s) get inserted at the specified position.
  • And -- important! -- at the insertion point, they themselves also get inserted in the order as supplied.