Merge pull request #9 from teonat/develop

Remove false positive FS003 for pure regex-strings containing curly brackets
MichaelKim0407 · Oct 21, 2021 · dcfcaed · dcfcaed
2 parents f3b22b5 + 1501cf1
commit dcfcaed
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/flake8_use_fstring/prefix.py b/flake8_use_fstring/prefix.py
@@ -13,7 +13,8 @@
 
 FSTRING_REGEX = _re.compile(r'^([a-zA-Z]*?[fF][a-zA-Z]*?){1}["\']')
 NON_FSTRING_REGEX = _re.compile(
-    r'^[a-zA-Z]*(?:\'\'\'|\'|"""|")(.*?{.+?}.*)(?:\'|\'\'\'|"|""")$',
+    r'^[a-zA-Z]*(?<!\b[rR])(?:\'\'\'|\'|"""|")'
+    r'(.*?{.+?}.*)(?:\'|\'\'\'|"|""")$',
 )
 
 

diff --git a/tests/example.py b/tests/example.py
@@ -47,7 +47,8 @@ def format(self):  # noqa: A003
 
 # match missing prefix
 o = ('{n}'
-     '{{m}} {n}')
+     '{{m}} {n}'
+     r'[a-z]{1,3}')  # Should not be matched.
 
 # no errors below; coverage
 ''.strip()