From a610387fb40411f992f1fea38c9e7eaa7cf5c8cc Mon Sep 17 00:00:00 2001
From: Robert Di Pardo <59004801+rdipardo@users.noreply.github.com>
Date: Tue, 4 Oct 2022 18:35:05 -0400
Subject: [PATCH] Fix language detected from content not applied if default
 language is set

Properly handle missing file extensions in `Buffer::setFileName`

Before 6263ce5, the user-preferred default language would apply to
files with no extension, but got overwritten by `L_TEXT` when the
extension was present *but unknown*.

This is why the `buf->_lang == L_TEXT` condition failed *only for
buffers with _no_ extension*.

Fix #11504, close #12286
---
 PowerEditor/src/ScintillaComponent/Buffer.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/PowerEditor/src/ScintillaComponent/Buffer.cpp b/PowerEditor/src/ScintillaComponent/Buffer.cpp
index 1a3d00da6..241443aad 100644
--- a/PowerEditor/src/ScintillaComponent/Buffer.cpp
+++ b/PowerEditor/src/ScintillaComponent/Buffer.cpp
@@ -211,6 +211,8 @@ void Buffer::setFileName(const TCHAR *fn, LangType defaultLang)
 			newLang = nppParamInst.getLangFromExt(ext);
 		}
 	}
+	else if (!isUntitled()) // existing file with no extension
+		newLang = L_TEXT;
 
 	if (newLang == defaultLang || newLang == L_TEXT)	//language can probably be refined
 	{