From 8ade8009ee1fb508bf94ca6c8c3cd288f051c55b Mon Sep 17 00:00:00 2001
From: Robin Gagnon <me@reobin.dev>
Date: Tue, 4 Jan 2022 16:34:55 -0500
Subject: feat(filetype.lua): Add typescript extension to filetype detection
 (#16923)

port from `filetype.vim`; also add `getline` convenience function
---
 runtime/lua/vim/filetype.lua | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'runtime/lua/vim')

diff --git a/runtime/lua/vim/filetype.lua b/runtime/lua/vim/filetype.lua
index f7048f3709..bbcbe53eaa 100644
--- a/runtime/lua/vim/filetype.lua
+++ b/runtime/lua/vim/filetype.lua
@@ -19,6 +19,10 @@ local function starsetf(ft)
   }}
 end
 
+local function getline(bufnr, lnum)
+  return api.nvim_buf_get_lines(bufnr, lnum-1, lnum, false)[1]
+end
+
 -- Filetypes based on file extension
 local extension = {
   -- BEGIN EXTENSION
@@ -635,6 +639,13 @@ local extension = {
   tssop = "tssop",
   tutor = "tutor",
   twig = "twig",
+  ts = function(path, bufnr)
+    if getline(bufnr, 1):find("<%?xml") then
+      return "xml"
+    else
+      return "typescript"
+    end
+  end,
   tsx = "typescriptreact",
   uc = "uc",
   uit = "uil",
-- 
cgit