1 files changed, 56 insertions, 0 deletions
diff --git a/src/proguard/util/FixedStringMatcher.java b/src/proguard/util/FixedStringMatcher.java
new file mode 100644
index 0000000..c1eb3f4
--- /dev/null
+++ b/src/proguard/util/FixedStringMatcher.java
@@ -0,0 +1,56 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.util;
+
+/**
+ * This StringMatcher tests whether strings start with a given fixed string
+ * and then match another optional given StringMatcher.
+ *
+ * @author Eric Lafortune
+ */
+public class FixedStringMatcher implements StringMatcher
+{
+    private final String        fixedString;
+    private final StringMatcher nextMatcher;
+
+
+    public FixedStringMatcher(String fixedString)
+    {
+        this(fixedString, null);
+    }
+
+
+    public FixedStringMatcher(String fixedString, StringMatcher nextMatcher)
+    {
+        this.fixedString = fixedString;
+        this.nextMatcher = nextMatcher;
+    }
+
+
+    // Implementations for StringMatcher.
+
+    public boolean matches(String string)
+    {
+        return string.startsWith(fixedString) &&
+               (nextMatcher == null ||
+                nextMatcher.matches(string.substring(fixedString.length())));
+    }
+}