feature request: 'smart pasting' and/or 'pre_paste_hook' option.

[qtyra]

I couldn't find a better place to suggest this since this plugin aims to replace the default bindings, creating a separate plugin would be a hassle. Consider this simple file ('*' represents the cursor position):

text1
text2
text3

text4
text5
text6

text7
text8
*ext9

AFAIK, there's no easy way to move the last paragraph to the top or vice versa with the correct position of empty lines. Here are some solutions I've considered:

• dapggP: leaves empty line at the top and no empty line between the pasted paragraph and the following one.
• dipggP: leaves an empty line at the bottom and no empty line between the pasted paragraph and the following one.

Please note:

• While I could manually add or remove the empty lines, it's inconvenient.
• Similar patterns arise with other objects, like moving the last word to the start of the line.
• This is different from swapping.
• I could create my own custom lua function to handle these cases. However, I can't see how to integrate it correctly with this plugin, and at the very least, it would be a clumsy solution. For example, I don't see a good interaction with the paste textobject.

So i thought this plugin could implement one or both of these solutions:

1. Handle these special cases without changing any register content and include options to enable or disable this behavior. The algorithm seems straightforward to me, a similar procedure would apply for words, just replacing lines by spaces:

   1. Check if the text to be pasted contains a empty line at the end/start.
   2. Check if we are at the start or end of the buffer.
   3. Put and remove an empty line after/before the paragraph.

2. Add a simple pre_paste_hook option, customizable with a function that receives the text to be pasted and the type of pasting as input.

Let me know what you think!

[gbprod]

Hi!

Thanks for this feedback.

There is already something like a pre_paste_hook, it's called wrappers (it's something like "middlewares"). I never took the time to document this but this is what I use to create Special put mappings.

You can see here how to register mappings with wrapper and here how to create a wrapper.

Let me know if this feature allows you to create your hook ;)