injections(lua): add vim highlights to api funcs (#5404)

Add vim injections for `vim.api.nvim[_buf]_create_user_command` and
`vim.api.nvim_create_autocmd`

1 files changed, 70 insertions, 0 deletions

diff --git a/queries/lua/injections.scm b/queries/lua/injections.scm
index 908c805da..6f7b97267 100644
--- a/queries/lua/injections.scm
+++ b/queries/lua/injections.scm
@@ -28,6 +28,76 @@
   (#eq? @_method "nvim_exec_lua")
   (#set! injection.language "lua"))
 
+; vim.api.nvim_create_autocmd("FileType", { command = "injected here" })
+(function_call
+  name: (_) @_vimcmd_identifier
+  arguments:
+    (arguments
+      . (_)
+      . 
+      (table_constructor
+        (field
+          name: (identifier) @_command
+          value: 
+            (string content: (_) @injection.content)))
+      .) ; limit so only 2-argument functions gets matched before pred handle
+  (#eq? @_vimcmd_identifier "vim.api.nvim_create_autocmd")
+  (#eq? @_command "command")
+  (#set! injection.language "vim"))
+
+
+(function_call
+  name: (_) @_user_cmd
+  arguments: 
+    (arguments
+      . (_)
+      . 
+      (string
+        content: (_) @injection.content)
+      . (_) .)
+  (#eq? @_user_cmd "vim.api.nvim_create_user_command")
+  (#set! injection.language "vim"))
+
+(function_call
+  name: (_) @_user_cmd
+  arguments: 
+    (arguments
+      . (_)
+      . (_)
+      . 
+      (string
+        content: (_) @injection.content)
+      . (_) .) ; Limiting predicate handling to only functions with 4 arguments
+  (#eq? @_user_cmd "vim.api.nvim_buf_create_user_command")
+  (#set! injection.language "vim"))
+
+;; rhs highlighting for vim.keymap.set/vim.api.nvim_set_keymap/vim.api.nvim_buf_set_keymap
+; (function_call
+;   name: (_) @_map
+;   arguments: 
+;     (arguments
+;       . (_)
+;       . (_)
+;       .
+;       (string
+;         content: (_) @injection.content))
+;   (#any-of? @_map "vim.api.nvim_set_keymap" "vim.keymap.set")
+;   (#set! injection.language "vim"))
+;
+; (function_call
+;   name: (_) @_map
+;   arguments: 
+;     (arguments
+;       . (_)
+;       . (_)
+;       . (_)
+;       . 
+;       (string
+;         content: (_) @injection.content)
+;       . (_) .)
+;   (#eq? @_map "vim.api.nvim_buf_set_keymap")
+;   (#set! injection.language "vim"))
+
 ;; highlight string as query if starts with `;; query`
 (string content: _ @injection.content 
  (#lua-match? @injection.content "^%s*;+%s?query")