1 files changed, 87 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.ndk/src/com/android/ide/eclipse/ndk/internal/templates/TemplatedInputStream.java b/eclipse/plugins/com.android.ide.eclipse.ndk/src/com/android/ide/eclipse/ndk/internal/templates/TemplatedInputStream.java
new file mode 100644
index 000000000..129caa327
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.ndk/src/com/android/ide/eclipse/ndk/internal/templates/TemplatedInputStream.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
+ *
+ * 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.android.ide.eclipse.ndk.internal.templates;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Map;
+
+/**
+ * Reads from a template substituting marked values from the supplied Map.
+ */
+public class TemplatedInputStream extends InputStream {
+
+    private final InputStream mIn;
+    private final Map<String, String> mMap;
+    private char[] mSub;
+    private int mPos;
+    private int mMark;
+
+    public TemplatedInputStream(InputStream in, Map<String, String> map) {
+        this.mIn = in;
+        this.mMap = map;
+    }
+
+    @Override
+    public int read() throws IOException {
+        // if from a mark, return the char
+        if (mMark != 0) {
+            int c = mMark;
+            mMark = 0;
+            return c;
+        }
+
+        // return char from sub layer if available
+        if (mSub != null) {
+            char c = mSub[mPos++];
+            if (mPos >= mSub.length)
+                mSub = null;
+            return c;
+        }
+
+        int c = mIn.read();
+        if (c == '%') {
+            // check if it's a sub
+            c = mIn.read();
+            if (c == '{') {
+                // it's a sub
+                StringBuffer buff = new StringBuffer();
+                for (c = mIn.read(); c != '}' && c >= 0; c = mIn.read())
+                    buff.append((char) c);
+                String str = mMap.get(buff.toString());
+                if (str != null) {
+                    mSub = str.toCharArray();
+                    mPos = 0;
+                }
+                return read(); // recurse to get the real char
+            } else {
+                // not a sub
+                mMark = c;
+                return '%';
+            }
+        }
+
+        return c;
+    }
+
+    @Override
+    public void close() throws IOException {
+        super.close();
+        mIn.close();
+    }
+
+}