bug#46621: Copy line

[Lars Ingebrigtsen]

Juri Linkov <juri@linkov.net> writes:

> This would also mean that the problem is a missing command that
> saves the current line to the kill-ring?  If such a command existed,
> then duplicating the line would take two keys as well: the first
> key to save the current line to the kill-ring, and the second key
> to yank it.

A command to save the current line to the kill ring might be nice (if it
settles on some definition of "line"), but it doesn't really offer the
convenience.

To insert a copy of a region: `M-w C-y'.

To insert a copy of the current line with such a command: `NEW-COMMAND
C-n' (see if you landed on the next line or whether that took you to the
end of the buffer) `RET'/`C-a' `C-y'.

I.e., `duplicate-line' offers both a practical and mental simplification
over what we have today, but making that command do region stuff doesn't
really give anything except muddling up the command semantics.

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