@@ -52,7 +52,7 @@ func CleanPatterns(patterns []string) ([]string, [][]string, bool, error) {

 		if exclusion(pattern) {

 			pattern = pattern[1:]

 		}

-		patternDirs = append(patternDirs, strings.Split(pattern, "/"))

+		patternDirs = append(patternDirs, strings.Split(pattern, string(os.PathSeparator)))

 	}

 	return cleanedPatterns, patternDirs, exceptions, nil

@@ -83,8 +83,9 @@ func Matches(file string, patterns []string) (bool, error) {

 // The more generic fileutils.Matches() can't make these assumptions.

 func OptimizedMatches(file string, patterns []string, patDirs [][]string) (bool, error) {

 	matched := false

+	file = filepath.FromSlash(file)

 	parentPath := filepath.Dir(file)

-	parentPathDirs := strings.Split(parentPath, "/")

+	parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))

 	for i, pattern := range patterns {

 		negative := false

@@ -102,8 +103,8 @@ func OptimizedMatches(file string, patterns []string, patDirs [][]string) (bool,

 		if !match && parentPath != "." {

 			// Check to see if the pattern matches one of our parent dirs.

 			if len(patDirs[i]) <= len(parentPathDirs) {

-				match, _ = regexpMatch(strings.Join(patDirs[i], "/"),

-					strings.Join(parentPathDirs[:len(patDirs[i])], "/"))

+				match, _ = regexpMatch(strings.Join(patDirs[i], string(os.PathSeparator)),

+					strings.Join(parentPathDirs[:len(patDirs[i])], string(os.PathSeparator)))

 			}

 		}

@@ -125,6 +126,9 @@ func OptimizedMatches(file string, patterns []string, patDirs [][]string) (bool,

 // of directories.  This means that we should be backwards compatible

 // with filepath.Match(). We'll end up supporting more stuff, due to

 // the fact that we're using regexp, but that's ok - it does no harm.

+//

+// As per the comment in golangs filepath.Match, on Windows, escaping

+// is disabled. Instead, '\\' is treated as path separator.

 func regexpMatch(pattern, path string) (bool, error) {

 	regStr := "^"