don9z · February 19, 2013 09:04 · Feb 19, 2013 · Feb 19, 2013
diff --git a/gistfile1.txt → gistfile1.java b/gistfile1.txt → gistfile1.java
diff --git a/gistfile1.txt b/gistfile1.txt
@@ -0,0 +1,20 @@
+    public static String stringByAddingPercentEscapesUsingEncoding(String input, String encoding)
+            throws UnsupportedEncodingException {
+        byte[] inputBytes = input.getBytes(encoding);
+        StringBuilder stringBuilder = new StringBuilder(inputBytes.length);
+        for(int i = 0; i < inputBytes.length; ++i) {
+            int charByte = inputBytes[i] < 0 ? inputBytes[i] + 256 : inputBytes[i];
+            if( charByte <= 0x20 || charByte >= 0x7F ||
+                    (charByte == 0x22 || charByte == 0x25 || charByte == 0x3C ||
+                            charByte == 0x3E || charByte == 0x20 || charByte == 0x5B ||
+                            charByte == 0x5C || charByte == 0x5D || charByte == 0x5E ||
+                            charByte == 0x60 || charByte == 0x7b || charByte == 0x7c ||
+                            charByte == 0x7d)) {
+                stringBuilder.append(String.format("%%%02X", charByte));
+            }
+            else {
+                stringBuilder.append((char)charByte);
+            }
+        }
+        return stringBuilder.toString();
+    }