Parse long values

srcs/Internals/JsonParser.cpp

@@ -0,0 +1,92 @@
+#include "JsonParser.h"
+#include "../JsonBuffer.h"
+#include <stdlib.h>
+#include <ctype.h>
+
+bool JsonParser::isEnd()
+{
+    return *_ptr == 0;
+}
+
+bool JsonParser::isArrayStart()
+{
+    return *_ptr == '[';
+}
+
+bool JsonParser::isArrayStop()
+{
+    return *_ptr == ']';
+}
+
+bool JsonParser::isLong()
+{
+    char* ptr = _ptr;
+
+    // skip all digits
+    while (isdigit(*ptr))
+        ptr++;
+
+    // same position => 0 digits => not a long
+    if (ptr == _ptr) 
+        return false;
+
+    // stopped on a decimal separator => not a long but a double
+    if (*ptr == '.')
+        return false;
+
+    return true;
+}
+
+bool JsonParser::isSpace()
+{
+    return *_ptr == ' ' || *_ptr == '\t' || *_ptr == '\n' || *_ptr == '\r';
+}
+
+void JsonParser::skipOneChar()
+{
+    _ptr++;
+}
+
+void JsonParser::skipSpaces()
+{
+    while(isSpace()) skipOneChar();
+}
+
+JsonNode* JsonParser::parseNode()
+{
+    skipSpaces();
+
+    if (isArrayStart())
+        return parseArray();
+        
+    if (isLong())    
+        return parseLong();    
+
+    return 0;
+}
+
+JsonNode* JsonParser::parseArray()
+{
+    skipOneChar();
+
+    JsonNode* node = _buffer->createNode();
+    node->setAsArray(_buffer);
+
+    skipSpaces();
+
+    if (isArrayStop())
+        return node;
+
+    node->addChild(parseNode());
+
+    return node;
+}
+
+JsonNode* JsonParser::parseLong()
+{
+    long value = strtol(_ptr, &_ptr, 10);
+
+    JsonNode* node = _buffer->createNode();
+    node->setAsLong(value);
+    return node;
+}