From 61952a9bcd9b2649d9b0213d01fbc847bc8a65fa Mon Sep 17 00:00:00 2001
From: Benoit Blanchon <github@benoitblanchon.fr>
Date: Tue, 26 Aug 2014 11:58:33 +0200
Subject: [PATCH] Added setTabSize()

---
 JsonGenerator/IndentedPrint.cpp | 14 ++++++++++----
 JsonGenerator/IndentedPrint.h   | 10 ++++++++--
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/JsonGenerator/IndentedPrint.cpp b/JsonGenerator/IndentedPrint.cpp
index 62072569..f29ba501 100644
--- a/JsonGenerator/IndentedPrint.cpp
+++ b/JsonGenerator/IndentedPrint.cpp
@@ -4,16 +4,22 @@ using namespace ArduinoJson::Generator;
 
 void IndentedPrint::indent()
 {
-    if (level<127)
+    if (level < MAX_LEVEL)
         level++;
 }
 
 void IndentedPrint::unindent()
 {
-    if (level>0)
+    if (level > 0)
         level--;
 }
 
+void IndentedPrint::setTabSize(uint8_t n)
+{
+    if (n < MAX_TAB_SIZE)
+        tabSize = n;
+}
+
 size_t IndentedPrint::write(uint8_t c)
 {
     size_t n = 0;
@@ -24,7 +30,7 @@ size_t IndentedPrint::write(uint8_t c)
     n += sink.write(c);
 
     isNewLine = c == '\n';
-        
+
     return n;
 }
 
@@ -32,7 +38,7 @@ size_t IndentedPrint::writeTabs()
 {
     size_t n = 0;
 
-    for (int i = 0; i<level; i++)
+    for (int i = 0; i < level*tabSize; i++)
         n += sink.write(' ');
 
     return n;
diff --git a/JsonGenerator/IndentedPrint.h b/JsonGenerator/IndentedPrint.h
index ab1a4b08..e1877b5e 100644
--- a/JsonGenerator/IndentedPrint.h
+++ b/JsonGenerator/IndentedPrint.h
@@ -19,6 +19,7 @@ namespace ArduinoJson
                 : sink(p)
             {
                 level = 0;
+                tabSize = 1;
                 isNewLine = true;
             }
 
@@ -26,13 +27,18 @@ namespace ArduinoJson
 
             void indent();
             void unindent();
+            void setTabSize(uint8_t n);
 
         private:
             Print& sink;
-            uint8_t level : 7;
+            uint8_t level : 4;
+            uint8_t tabSize : 3;
             bool isNewLine : 1;
-
+            
             size_t writeTabs();
+
+            const int MAX_LEVEL = 15; // because it's only 4 bits
+            const int MAX_TAB_SIZE = 7; // because it's only 3 bits
         };
     }
 }