I'm imagining your diffopt does not have "inline:char" or "inline:word"
right? In this case, the "dark blue lines" are basically "added lines" that
are just the number of lines on the left minus the number of lines on the
right. You just need to subtract them.
In order to count number of added/changed lines, you need some way of
querying them using Vimscript, and currently Vim has pretty limited APIs
for querying the diff structures. The one that you may want to use is
`diff_hlID`. For example you can use diff_hlID(4321, 1)->synIDattr("name") and
check if it's non-empty and count the lines between two sides. It requires
a bit of scripting to work. There isn't a simple command to count this. I
think it's more helpful if you explain exactly why you need to count these
lines to begin with though.
On Fri, Oct 3, 2025 at 4:07 AM K otgc <[email protected]> wrote:
> So not simply adding numbers to lines/rows, but totalling the unique added
> lines on the left and the right windows.
>
> On Thursday, 2 October 2025 at 09:19:07 UTC+2 K otgc wrote:
>
>> The dark blue lines would be unique added lines.[image:
>> screenshot_20251002_091657.png]
>>
>> On Tuesday, 30 September 2025 at 18:43:47 UTC+2 K otgc wrote:
>>
>>> Hello,
>>> would there be a command to count the dark blue lines on the vimdiff
>>> Bookmarks1 and Bookmarks2 please?
>>>
>>> Once I figured out how many extra lines there are, I can then work on
>>> some type of merge.
>>>
>>> At the bottom of the vimdiff Bookmarks1 and Bookmarks2, there's some
>>> information showing:
>>> Bookmarks1 4675,1 Bot and Bookmarks2 4655,1 Bot
>>> I guess this means Bookmarks1 has 20 more lines thank Bookmark2.
>>> However this isn't much help.
>>> What I really need is Bookmarks1 has these dark blue lines for lines of
>>> data which isn't in Bookmarks2.
>>> Vice versa too.
>>>
>>> Then the fun bit merging or manually diffget and diffput each and every
>>> single line, which might be out of the question if too many.
>>>
>>> Many thanks for any suggestions.
>>>
>> --
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