--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/chapter9/FileMatcher.scala	Tue Jan 08 16:41:46 2013 +0900
@@ -0,0 +1,31 @@
+object FileMatcher {
+     private def filesHere = (new java.io.File(".")).listFiles
+    /*
+     def filesEnding(query: String) =
+     for (file <- filesHere; if file.getName.endsWith(query))
+     yield file
+     def filesContaining(query: String) =
+     for (file <- filesHere; if file.getName.contains(query))
+     yield file
+     def filesRexex(query: String) = 
+     for (file <- filesHere; if file.getName.matches(query))
+     yield file
+     */
+    def filesMatching(query: String,
+		      matcher: (String, String) => Boolean) = {
+			  for (file <- filesHere; if matcher(file.getName, query))
+			  yield file
+		      }
+    def filesEnding(query: String) =
+	filesMatching(query, _.endsWith(_))
+    def filesContaining(query: String) =
+	filesMatchin(query, _.contains(_))
+    def filesRegex(query: String) =
+	filesMatching(query, _.matches(_))
+}
+
+
+
+
+
+