From b169edb5d2f9fd1999f430c7453a36045c0191db Mon Sep 17 00:00:00 2001
From: Dane David <dndavid102@gmail.com>
Date: Thu, 7 Jul 2022 13:23:09 +0200
Subject: [PATCH] Support exclusively special characters in component
 filenames. Fixes #7143.

---
 src/compiler/compile/utils/__test__.ts               | 6 ++++++
 src/compiler/compile/utils/get_name_from_filename.ts | 4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/compiler/compile/utils/__test__.ts b/src/compiler/compile/utils/__test__.ts
index 7777bc6afb..3ade3dca2b 100644
--- a/src/compiler/compile/utils/__test__.ts
+++ b/src/compiler/compile/utils/__test__.ts
@@ -13,4 +13,10 @@ describe('get_name_from_filename', () => {
 	it('handles Windows filenames', () => {
 		assert.equal(get_name_from_filename('path\\to\\Widget.svelte'), 'Widget');
 	});
+
+	it('handles special characters in filenames', () => {
+		assert.equal(get_name_from_filename('@.svelte'), '_');
+		assert.equal(get_name_from_filename('&.svelte'), '_');
+		assert.equal(get_name_from_filename('~.svelte'), '_');
+	});
 });
diff --git a/src/compiler/compile/utils/get_name_from_filename.ts b/src/compiler/compile/utils/get_name_from_filename.ts
index b05605b5ee..daa8bbb0a7 100644
--- a/src/compiler/compile/utils/get_name_from_filename.ts
+++ b/src/compiler/compile/utils/get_name_from_filename.ts
@@ -15,8 +15,8 @@ export default function get_name_from_filename(filename: string) {
 		.replace(/%/g, 'u')
 		.replace(/\.[^.]+$/, '')
 		.replace(/[^a-zA-Z_$0-9]+/g, '_')
-		.replace(/^_/, '')
-		.replace(/_$/, '')
+		.replace(/^_(?=.)/, '')
+		.replace(/(?<=.)_$/, '')
 		.replace(/^(\d)/, '_$1');
 
 	if (!base) {