1 files changed, 42 insertions, 0 deletions
diff --git a/jimfs/src/main/java/com/google/common/jimfs/InternalCharMatcher.java b/jimfs/src/main/java/com/google/common/jimfs/InternalCharMatcher.java
new file mode 100644
index 0000000..a3fba6a
--- /dev/null
+++ b/jimfs/src/main/java/com/google/common/jimfs/InternalCharMatcher.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.common.jimfs;
+
+import java.util.Arrays;
+
+/**
+ * Simple replacement for the real CharMatcher until it's out of @Beta.
+ *
+ * @author Colin Decker
+ */
+final class InternalCharMatcher {
+
+  public static InternalCharMatcher anyOf(String chars) {
+    return new InternalCharMatcher(chars);
+  }
+
+  private final char[] chars;
+
+  private InternalCharMatcher(String chars) {
+    this.chars = chars.toCharArray();
+    Arrays.sort(this.chars);
+  }
+
+  public boolean matches(char c) {
+    return Arrays.binarySearch(chars, c) >= 0;
+  }
+}