Any way to use mini.ai to work like something similar to matchit.vim

[231tr0n]

Contributing guidelines

• I have read CODE_OF_CONDUCT.md

Module(s)

mini.ai

Question

Hi echasnovski! Is there any way to make mappings in mini.ai to achieve the functionality similar to matchit.vim which basically is pressing % key to traverse between if and else keywords or function and end keywords. This would be of great help for me if possible some way since the default matchit plugin does not support filetypes like svelte :( .
One last question I had was if we can use mini.ai to navigate to the else keyword of a if-else chain in any manner possible.

[echasnovski]

There is move_cursor(). It is also used for goto_xxx mappings. For example, g]) goes to the right ). With 'cover' search method (either global or set directly in MiniAi.move_cursor() call inside custom mappings) it will not go to the next ) textobject which can be used to imitate %.

Alternatively, there is a slightly more low-level find_textobject() which can be used to decide where to put cursor.

A more %-like alternative is find or find_left actions from 'mini.surround'. Pressing sf) multiple times will act like % when traversing expression in parenthesis. Note, that it will possibly traverse through four cursor positions of surrounding (left start - left end - right start - right end).

---

The problem with if-else case in particular is that it 1) needs to be a separate textobject/surrounding; 2) that textobject/surrounding needs to start at if and end at else. Creating this textobject/surrounding robustly should be possible via tree-sitter-based textobject and possibly some custom queries. I am afraid this is as far as there can be given an advice, short of actually writing the queries.

A much less accurate approach is to use the rule "any text from if to the next else". So something like this:

require('mini.ai').setup({
  custom_textobjects = {
    o = { 'if.-else', '^if().*()else$' },
  },
})

require('mini.surround').setup({
  custom_surroundings = {
    o = {
      input = { 'if.-else', '^if().*()else$' },
      output = { left = 'if', right = 'else' },
    },
  },
})

Hope this helps.

[231tr0n]

Thank you :)