Cycle through snippets

[augustocdias]

I'm not sure if this is an issue I should open on LuaSnippets or here, but here we go. Is it possible to make the snippet_forward and snippet_backward to cycle when they reach the last (and I call forward) or first (and I call previous)? The current behavior I'm seeing is that it just goes to the fallback call when I reach one of the edges of the snippets.

[Saghen]

You'll want to search on Luasnip for this, we're just calling into their API to jump to the next placeholder

[augustocdias]

Understood. On a similar note: I have Esc mapped to cancel and when I press Esc to close the auto complete with snippet active, it is also canceling the snippet session (hide is doing the same). Is it possible to cancel just the cmp and not the snippet?

[augustocdias]

And another question. If I'm using the native blink snippets support. Is it possible to cycle from last to first as I asked?

[augustocdias]

hey @Saghen could you point me to directions on where to look to hack a solution for that using blink's snippets support? If I manage and is interesting to you I could make a PR later adding an option for it...

[Saghen]

Hey, if you're using native snippets, look into :h vim.snippet. You can see how we interact with the snippet engines, depending on the engine, here: https://github.com/Saghen/blink.cmp/blob/main/lua/blink/cmp/config/snippets.lua#L22

[farzadmf]

@augustocdias May I ask how you navigate the placeholders?

I don't even know how I can navigate the placeholders (using LazyVim)

Tried something like this:

keymap = {
  ['<Tab>'] = {
    function(cmp)
      if cmp.snippet_active() then
        return cmp.accept()
      else
        return cmp.select_and_accept()
      end
    end,
    'snippet_forward',
    'fallback',
  },
  ['<S-Tab>'] = { 'snippet_backward', 'fallback' },

And Tab/Shift-tab works until I go into insert mode and type something into one a placeholder; after that, it just stays in the placeholder.

I tried something like this as well:

keymap = {
  ['C-j'] = { 'snippet_forward', 'fallback' },
  ['C-k'] = { 'snippet_backward', 'fallback' },
}

But that doesn't work at all

[augustocdias]

I have it like this:

                ['<Tab>'] = { 'snippet_forward', 'select_next', 'fallback' },
                ['<S-Tab>'] = { 'snippet_backward', 'select_prev', 'fallback' },

Here's my config:

https://github.com/augustocdias/dotfiles/blob/main/.config/nvim/lua/plugins/cmp.lua#L227-L228

[farzadmf]

Thank you, still not working for me; I guess LazyVim is overriding something 🙁

[evesdropper]

Are you able to complete into hidden snippets? For example some regex snippets don't really make sense to be shown. I have the following mapping right now:

               ['<Tab>'] = { 'select_next',
                    -- function(cmp)
                    --     if cmp.snippet_active() and require("luasnip").expandable() then
                    --         require("luasnip").expand()
                    --     end
                    -- end,
                    'snippet_forward', 'fallback' },

but the commented function currently doesn't work (looks like it might be a LuaSnip issue so I've made an issue there - it's to check if there's an expandable snippet that e.g. might be hidden.

[augustocdias]

I don't remember using hidden snippets. To be sincere I barely use snippets. Because of that I'm moving to blink's implementation of snippets to reduce dependencies.