Hi,
I found an internal diff introduced in the patch-8.1.360.
Until the patch, everone has to install the external diff command
so my diff-related plugin can use the command because it is always avaiable.
The patch is great, but the assumption is not true now.
Is it to possible to implement a builtin function something like this?
xdiff({list_in}, {list_new})
It takes two lists of items,
follows diffopt option including icase and iwhite,
and returns a list of ed-style diff output.
For example,
let l1= ['1', '2', '3', '4', '5']
let l2= ['1', '3', '2', '5', '4']
then, xdiff(l1, l2) returns
['2d1', '< 2', '4c3', '< 4', '---', '> 2', '5a5', '> 4']
The function is too simple and would need more parameters. And I am not sure
how difficult/easy to take advantage of the internal xdiff library.
Please let me know any concern and idea.
Regards,
Rick
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