Fixed negative number parsing

include/ArduinoJson/Internals/JsonParser.hpp

@@ -25,24 +25,20 @@ namespace ArduinoJson
             JsonBuffer* _buffer;
             char* _ptr;
 
-            inline bool isArrayStart();
-            inline bool isBoolean();
-            inline bool isDouble();
-            inline bool isEnd();
-            inline bool isLong();
-            inline bool isNull();
-            inline bool isObjectStart();
+            bool isEnd()
+            {
+                return *_ptr == 0;
+            }
 
             bool skip(char charToSkip);
             void skipSpaces();
 
             inline JsonNode* parseArray();
             inline JsonNode* parseBoolean();
-            inline JsonNode *parseDouble();
-            inline JsonNode* parseObjectKeyValue();
-            inline JsonNode* parseLong();
             inline JsonNode* parseNull();
+            inline JsonNode* parseNumber();
             inline JsonNode* parseObject();
+            inline JsonNode* parseObjectKeyValue();
             inline JsonNode* parseString();
         };
     }

src/Internals/JsonParser.cpp

@@ -8,63 +8,6 @@
 
 using namespace ArduinoJson::Internals;
 
-bool JsonParser::isArrayStart()
-{
-    return *_ptr == '[';
-}
-
-bool JsonParser::isBoolean()
-{
-    return *_ptr == 't' || *_ptr == 'f';
-}
-
-bool JsonParser::isDouble()
-{
-    char* ptr = _ptr;
-
-    // skip all digits
-    while (isdigit(*ptr))
-        ptr++;
-
-    // same position => 0 digits => not a number
-    if (ptr == _ptr)
-        return false;
-
-    // stopped on a decimal separator => ok it's a double
-    return *ptr == '.';
-}
-
-bool JsonParser::isEnd()
-{
-    return *_ptr == 0;
-}
-
-bool JsonParser::isLong()
-{
-    char* ptr = _ptr;
-
-    // skip all digits
-    while (isdigit(*ptr))
-        ptr++;
-
-    // same position => 0 digits => not a number
-    if (ptr == _ptr) 
-        return false;
-
-    // stopped on a decimal separator => not a long but a double
-    return *ptr != '.';
-}
-
-bool JsonParser::isNull()
-{
-    return *_ptr == 'n';
-}
-
-bool JsonParser::isObjectStart()
-{
-    return *_ptr == '{';
-}
-
 void JsonParser::skipSpaces()
 {
     while(isspace(*_ptr)) _ptr++;
@@ -83,25 +26,42 @@ JsonNode* JsonParser::parseAnything()
 {
     skipSpaces();
 
-    if (isArrayStart())
+    switch(*_ptr)
+    {
+        case '[':
             return parseArray();
 
-    if (isBoolean())
+        case 't':
+        case 'f':
             return parseBoolean();
 
-    if (isDouble())
-        return parseDouble();
+        case '-':
+        case '.':
+        case '0':
+        case '1':
+        case '2':
+        case '3':
+        case '4':
+        case '5':
+        case '6':
+        case '7':
+        case '8':
+        case '9':
+            return parseNumber();
 
-    if (isLong())    
-        return parseLong();
-
-    if (isNull())
+        case 'n':
             return parseNull();
 
-    if (isObjectStart())
+        case '{':
             return parseObject();
 
+        case '\'':
+        case '\"':
             return parseString();
+
+        default:
+            return NULL; // invalid JSON
+    }
 }
 
 JsonNode* JsonParser::parseArray()
@@ -144,22 +104,22 @@ JsonNode *JsonParser::parseBoolean()
     return _buffer->createBoolNode(value);
 }
 
-JsonNode *JsonParser::parseDouble()
+JsonNode* JsonParser::parseNumber()
+{
+    char* endOfLong;
+    long longValue = strtol(_ptr, &endOfLong, 10);
+
+    if (*endOfLong == '.') // stopped on a decimal separator
     {
         double value = strtod(_ptr, &_ptr);
-
-    int decimals = 0;
-    while(_ptr[1-decimals] != '.')
-        decimals++;
-
+        int decimals = _ptr - endOfLong - 1;
         return _buffer->createDoubleNode(value, decimals);
     }
-
-JsonNode* JsonParser::parseLong()
+    else
     {
-    long value = strtol(_ptr, &_ptr, 10);
-
-    return _buffer->createLongNode(value);
+        _ptr = endOfLong;
+        return _buffer->createLongNode(longValue);
+    }
 }
 
 JsonNode* JsonParser::parseNull()

test/JsonParser_Object_Tests.cpp

@@ -34,6 +34,12 @@ protected:
 		EXPECT_STREQ(expected, static_cast<const char*>(_object[key]));
 	}
 
+	template<typename T>
+	void keyMustHaveValue(const char* key, T expected)
+	{
+		EXPECT_EQ(expected, static_cast<T>(_object[key]));
+	}
+
 private:
 	StaticJsonBuffer<10> _jsonBuffer;
 	JsonObject _object;
@@ -149,3 +155,21 @@ TEST_F(JsonParser_Object_Test, EndingWithAComma)
     parseMustFail();
     sizeMustBe(0);
 }
+
+TEST_F(JsonParser_Object_Test, TwoIntergers)
+{
+    whenInputIs("{\"key1\":42,\"key2\":-42}");
+    parseMustSucceed();
+    sizeMustBe(2);
+    keyMustHaveValue("key1", 42);
+    keyMustHaveValue("key2", -42);
+}
+
+TEST_F(JsonParser_Object_Test, TwoDoubles)
+{
+    whenInputIs("{\"key1\":12.345,\"key2\":-7.89}");
+    parseMustSucceed();
+    sizeMustBe(2);
+    keyMustHaveValue("key1", 12.345);
+    keyMustHaveValue("key2", -7.89);
+}