From 9d83cc96a52f755351e24ab888cebd5a982de8fc Mon Sep 17 00:00:00 2001
From: Ray Greenwell <ray@threerings.net>
Date: Tue, 6 Jul 2010 20:54:48 +0000
Subject: [PATCH] For the String[] transformer, encode null elements as "\"
 followed by the terminator (we encode the terminator as a different
 character). This is somewhat nicer when inspecting an encoded String, and
 allows for a future in which the decoder easily counts the number of
 terminator characters and pre-allocates the storage, if we so desired.

---
 src/java/com/samskivert/depot/Transformers.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/java/com/samskivert/depot/Transformers.java b/src/java/com/samskivert/depot/Transformers.java
index 875007f..76a514b 100644
--- a/src/java/com/samskivert/depot/Transformers.java
+++ b/src/java/com/samskivert/depot/Transformers.java
@@ -137,7 +137,7 @@ public class Transformers
             StringBuilder buf = new StringBuilder();
             for (String s : value) {
                 if (s == null) {
-                    buf.append("\\0"); // encode nulls as "\0" (with no terminator)
+                    buf.append("\\\n"); // encode nulls as slash followed by the terminator
                 } else {
                     s = s.replace("\\", "\\\\"); // turn \ into \\ 
                     s = s.replace("\n", "\\n");  // turn a newline in a String to "\n"
@@ -163,7 +163,7 @@ public class Transformers
                     Preconditions.checkArgument(++ii < nn, "Invalid encoded string");
                     char slashed = encoded.charAt(ii);
                     switch (slashed) {
-                    case '0': // turn \0 into a null element
+                    case '\n': // turn back into a null element
                         Preconditions.checkArgument(buf.length() == 0, "Invalid encoded string");
                         value.add(null);
                         break;