avoid regressions in regex matching

sin-ha · May 8, 2024 · 9b779e6 · 9b779e6
1 parent 011ff4c
commit 9b779e6
Showing 1 changed file with 7 additions and 2 deletions.
diff --git a/src/reuse/_util.py b/src/reuse/_util.py
@@ -113,8 +113,13 @@
 
 _COPYRIGHT_PATTERNS = [
     re.compile(
-        r"(?P<copyright>(?P<prefix>SPDX-(File|Snippet)CopyrightText:"
-        r"(\s(\(C\)|Copyright\s(©|\(C\))?|©)?)?)\s+"
+        r"(?P<copyright>(?P<prefix>SPDX-(File|Snippet)CopyrightText:\s+"
+        r"(?:(?:\([cC]\)|©|(?:Copyright(?:\s\([cC]\)|\s©)?)?)?)?)\s+"
+        r"((?P<year>\d{4} ?- ?\d{4}|\d{4}),?\s+)?"
+        r"(?P<statement>.*?))" + _END_PATTERN
+    ),
+    re.compile(
+        r"(?P<copyright>(?P<prefix>SPDX-(File|Snippet)CopyrightText:)\s+"
         r"((?P<year>\d{4} ?- ?\d{4}|\d{4}),?\s+)?"
         r"(?P<statement>.*?))" + _END_PATTERN
     ),