Extracted class EscapedString

JsonGenerator/EscapedString.cpp

@@ -0,0 +1,65 @@
+/*
+ * Arduino JSON library
+ * Benoit Blanchon 2014 - MIT License
+ */
+
+#include "EscapedString.h"
+
+
+size_t EscapedString::printTo(Print& p) const
+{
+    const char* s = rawString;
+
+    if (!s)
+    {
+        return p.print("null");
+    }
+
+    size_t n = 0;
+
+    n += p.write('\"');
+
+    while (*s)
+    {
+        switch (*s)
+        {
+        case '"':
+            n += p.print("\\\"");
+            break;
+
+        case '\\':
+            n += p.print("\\\\");
+            break;
+
+        case '\b':
+            n += p.print("\\b");
+            break;
+
+        case '\f':
+            n += p.print("\\f");
+            break;
+
+        case '\n':
+            n += p.print("\\n");
+            break;
+
+        case '\r':
+            n += p.print("\\r");
+            break;
+
+        case '\t':
+            n += p.print("\\t");
+            break;
+
+        default:
+            n += p.write(*s);
+            break;
+        }
+
+        s++;
+    }
+
+    n += p.write('\"');
+
+    return n;
+}

JsonGenerator/EscapedString.h

@@ -0,0 +1,24 @@
+/*
+ * Arduino JSON library
+ * Benoit Blanchon 2014 - MIT License
+ */
+
+#pragma once
+
+#include "Print.h"
+
+class EscapedString
+{
+public:
+    EscapedString(const char* s)
+        : rawString(s)
+    {
+
+    }
+
+    size_t printTo(Print&) const;
+
+private:
+    const char* rawString;
+};
+

JsonGenerator/JsonValue.cpp

@@ -3,6 +3,7 @@
  * Benoit Blanchon 2014 - MIT License
  */
 
+#include "EscapedString.h"
 #include "JsonValue.h"
 
 using namespace ArduinoJson::Generator;
@@ -27,58 +28,6 @@ size_t JsonValue::printPrintableTo(const Content& c, Print& p)
 
 size_t JsonValue::printStringTo(const Content& c, Print& p)
 {
-    const char* s = c.asString;
-
-    if (!s)
-    {
-        return p.print("null");
-    }
-
-    size_t n = 0;
-
-    n += p.write('\"');
-
-    while (*s)
-    {
-        switch (*s)
-        {
-        case '"':
-            n += p.print("\\\"");
-            break;
-
-        case '\\':
-            n += p.print("\\\\");
-            break;
-
-        case '\b':
-            n += p.print("\\b");
-            break;
-
-        case '\f':
-            n += p.print("\\f");
-            break;
-
-        case '\n':
-            n += p.print("\\n");
-            break;
-
-        case '\r':
-            n += p.print("\\r");
-            break;
-
-        case '\t':
-            n += p.print("\\t");
-            break;
-
-        default:
-            n += p.write(*s);
-            break;
-        }
-
-        s++;
-    }
-
-    n += p.write('\"');
-
-    return n;
+    EscapedString s(c.asString);
+    return s.printTo(p);
 }

JsonGeneratorTests/JsonGeneratorTests.vcxproj

@@ -84,6 +84,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="..\JsonGenerator\EscapedString.cpp" />
     <ClCompile Include="..\JsonGenerator\JsonValue.cpp" />
     <ClCompile Include="..\JsonGenerator\StringBuilder.cpp" />
     <ClCompile Include="JsonArrayTests.cpp" />
@@ -93,6 +94,7 @@
     <ClCompile Include="StringBuilderTests.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\JsonGenerator\EscapedString.h" />
     <ClInclude Include="..\JsonGenerator\JsonArray.h" />
     <ClInclude Include="..\JsonGenerator\JsonHashTable.h" />
     <ClInclude Include="..\JsonGenerator\JsonObjectBase.h" />

JsonGeneratorTests/JsonGeneratorTests.vcxproj.filters

@@ -36,6 +36,9 @@
     <ClCompile Include="Print.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\JsonGenerator\EscapedString.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\JsonGenerator\JsonArray.h">
@@ -59,5 +62,8 @@
     <ClInclude Include="..\JsonGenerator\StringBuilder.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\JsonGenerator\EscapedString.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>