feat(snippets): Add snippy support (#93)

README.md

@@ -100,7 +100,7 @@ And this is done via the `snippet_engine` option in neogen's setup:
 
 - `snippet_engine` option will use provided engine to place the annotations:
 
-Currently supported: `luasnip`.
+Currently supported: `luasnip`, `snippy`.
 
 ```lua
 require('neogen').setup({ snippet_engine = "luasnip" })

doc/neogen.txt

@@ -180,12 +180,14 @@ Feel free to submit a PR, I will be happy to help you !
 We use semantic versioning ! (https://semver.org)
 Here is the current Neogen version:
 >
-  neogen.version = "2.6.0"
+  neogen.version = "2.7.0"
 <
 # Changelog~
 
 Note: We will only document `major` and `minor` versions, not `patch` ones.
 
+## 2.7.0~
+  - Add support for `snippy` snippet engine ! (see |neogen-snippet-integration|)
 ## 2.6.0~
   - Add support for placeholders in snippet insertion !
     None: placeholders are automatically set when using a bundled snippet engine.
@@ -235,6 +237,7 @@ To use a snippet engine, pass the option into neogen setup:
 <
 Some snippet engines come out of the box bundled with neogen:
 - `"luasnip"` (https://github.com/L3MON4D3/LuaSnip)
+- `"snippy"` (https://github.com/dcampos/nvim-snippy)
 
 If you want to customize the placeholders, you can use `placeholders_text` option:
 >

lua/neogen/snippet.lua

@@ -11,6 +11,7 @@ local conf = require("neogen.config").get()
 --- <
 --- Some snippet engines come out of the box bundled with neogen:
 --- - `"luasnip"` (https://github.com/L3MON4D3/LuaSnip)
+--- - `"snippy"` (https://github.com/dcampos/nvim-snippy)
 ---
 --- If you want to customize the placeholders, you can use `placeholders_text` option:
 --- >
@@ -94,4 +95,20 @@ snippet.engines.luasnip = function(snip, pos)
     )
 end
 
+--- Expand snippet for snippy engine
+---@param snip string the snippet to expand
+---@param pos table a tuple of row, col
+---@private
+snippet.engines.snippy = function (snip, pos)
+    local ok, snippy = pcall(require, "snippy")
+    if not ok then
+        notify("Snippy not found, aborting...", vim.log.levels.ERROR)
+        return
+    end
+    local row, _ = unpack(pos)
+    vim.api.nvim_buf_set_lines(0, row, row, true, {''}) -- snippy will change `row`
+    vim.api.nvim_win_set_cursor(0, {row + 1, 0}) -- `snip` already has indent so we should ignore `col`
+    snippy.expand_snippet({body = snip})
+end
+
 return snippet