> When I do complex substitutions, I want to see inspect subst,
> undo the substitution, before moving to the next one match
> (gnuemacs has something similar called "recursive-edit")
>
> Eg. my file contains thousands of dates as seconds, and I want to reformat
> the date (but seeing the context around the date)
> :%s,\<\(1[45678]\d\d\d\d\d\d\d\d\)\>,\=system("date +' %F-%H:%M' -d
> @".submatch(1)." "),gc
>
> I need an option to show-susbt-pause-undo the substitution and continue to
> next.
> p[subst and pause]/u [undo, and goto next] in
>
> The options y/n/a/q/l/^E/^Y
> Help:
> :h :s
> [c] Confirm each substitution. Vim highlights the matching string (with
> |hl-IncSearch|). You can type: *:s_c*
> 'y' to substitute this match
> 'l' to substitute this match and then quit ("last")
> 'n' to skip this match
> <Esc> to quit substituting
> 'a' to substitute this and all remaining matches
> 'q' to quit substituting
> CTRL-E to scroll the screen up
> CTRL-Y to scroll the screen down
Hmm, you should just not use :substitute for that. Use the right search
pattern, then record a change into a register (so you can repeat it).
You can also record two or more different changes, and use the one you
like with @a, @b, etc. And undo if it wasn't the right one and retry at
the same position. Then finally hit "n" to go to the next match.
There isn't really a good reason to expand the functionality of
:substitute to make it even more complex. It is really meant for bulk
changes, not complex stuff.
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start working.
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