Handle multiple case insensitivity prefixes in ignores (fixes #2134)

2015-08-08 11:53:14 +02:00
parent 161d5c8379
commit 0bfcafc5c6
2 changed files with 5 additions and 3 deletions
--- a/internal/fnmatch/fnmatch.go
+++ b/internal/fnmatch/fnmatch.go
@@ -38,9 +38,10 @@ func Convert(pattern string, flags int) (*regexp.Regexp, error) {
 		}
 	}

-	// Support case insensitive ignores
-	ignore := strings.TrimPrefix(pattern, "(?i)")
-	if ignore != pattern {
+	// Support case insensitive ignores. We do the loop because we may in some
+	// circumstances end up with multiple insensitivity prefixes
+	// ("(?i)(?i)foo"), which should be accepted.
+	for ignore := strings.TrimPrefix(pattern, "(?i)"); ignore != pattern; ignore = strings.TrimPrefix(pattern, "(?i)") {
 		flags |= CaseFold
 		pattern = ignore
 	}