vimcompletion

Neovim Completion & Snippets Skills

This document covers the autocompletion engine (nvim-cmp) and snippet engine (LuaSnip).

Autocompletion (hrsh7th/nvim-cmp)

The framework for autocompletion.

Mapping (Insert Mode)

• <C-p>: Select previous item.
• <C-n>: Select next item.
• <C-y>: Confirm selection.
• <C-Space>: Explicitly trigger completion.

Completion Sources

• copilot: AI-powered suggestions.
• nvim_lsp: Suggestions from the LSP.
• luasnip: Snippet expansions.
• buffer: Words from the current buffer.

Snippets (L3MON4D3/LuaSnip)

Advanced snippet engine for fast code expansion.

Keybindings (Insert/Select Mode)

• <C-s>e: Expand current snippet.
• <C-s>;: Jump to the next companion placeholder in a snippet.
• <C-s>,: Jump to the previous placeholder.
• <C-E>: Cycle through alternative choices in a snippet.

Snippet Packs

• Friendly Snippets: A massive collection of ready-to-use snippets for most languages.

API Reference (LuaSnip)

local ls = require("luasnip")

ls.expand()                     -- Expand snippet
ls.jump(1)                      -- Jump forward
ls.jump(-1)                     -- Jump backward
ls.choice_active()              -- Check if choice node is active
ls.change_choice(1)             -- Change choice