ed missing features

[jimmy jack]

 This is a very good program, but ed is missing a few features. For
example, line numbering (n) isn't implemented, global search or the ability
to search a range of lines isn't implemented, and you can only search on
the current line with no ability to tell ed to search for a string again.
Can those please be implemented so ed is much better? If there is anything
else i missed that ed needs that it should have, let me know.
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