From 2e0a98bcf88473b6069fe34a71123fc222336bd2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Richter?=
 <3201406+matmatyk@users.noreply.github.com>
Date: Tue, 2 Jan 2024 16:29:16 +0000
Subject: [PATCH] Convert file path returned from LSP in Cygwin

---
 autoload/lsp/util.vim | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/autoload/lsp/util.vim b/autoload/lsp/util.vim
index eb0a64fb..7620eb47 100644
--- a/autoload/lsp/util.vim
+++ b/autoload/lsp/util.vim
@@ -85,7 +85,12 @@ export def LspUriToFile(uri: string): string
   if uri_decoded =~? '^file:///\a:'
     # MS-Windows URI
     uri_decoded = uri_decoded[8 : ]
-    uri_decoded = uri_decoded->substitute('/', '\\', 'g')
+    if has("win32unix")  # we're in Cygwin
+      # The substitution is to remove the '^@' escape character from the end of line.
+      uri_decoded = system($'cygpath --unix {uri_decoded}')->substitute('^\(\p*\).*$', '\=submatch(1)', "")
+    else
+      uri_decoded = uri_decoded->substitute('/', '\\', 'g')
+    endif
   # On GNU/Linux (pattern not end with `:`)
   elseif uri_decoded =~? '^file:///\a'
     uri_decoded = uri_decoded[7 : ]