X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/00e7e12a3a412ea386806d5d4eeaed345e912940..d249f2d8380893f051b63140e3768cef599f49f3:/src/black/strings.py

diff --git a/src/black/strings.py b/src/black/strings.py
index 80f588f..d7b6c24 100644
--- a/src/black/strings.py
+++ b/src/black/strings.py
@@ -190,9 +190,9 @@ def normalize_string_quotes(s: str) -> str:
     if "f" in prefix.casefold():
         matches = re.findall(
             r"""
-            (?:[^{]|^)\{  # start of the string or a non-{ followed by a single {
+            (?:(?<!\{)|^)\{  # start of the string or a non-{ followed by a single {
                 ([^{].*?)  # contents of the brackets except if begins with {{
-            \}(?:[^}]|$)  # A } followed by end of the string or a non-}
+            \}(?:(?!\})|$)  # A } followed by end of the string or a non-}
             """,
             new_body,
             re.VERBOSE,