Json 格式化显示

---

public string Process(string inputText)
{
bool escaped = false;
bool inquotes = false;
int column = 0;
int indentation = 0;
Stack<int> indentations = new Stack<int>();
int TABBING = 8;
StringBuilder sb = new StringBuilder();
foreach (char x in inputText)
{
sb.Append(x);
column++;
if (escaped)
{
escaped = false;
}
else
{
if (x == '\')
{
escaped = true;
}
else if (x == '"')
{
inquotes = !inquotes;
}
else if (!inquotes)
{
if (x == ',')
{
// if we see a comma, go to next line, and indent to the same depth
sb.Append(" ");
column = 0;
for (int i = 0; i < indentation; i++)
{
sb.Append(" ");
column++;
}
}
else if (x == '[' || x == '{')
{
// if we open a bracket or brace, indent further (push on stack)
indentations.Push(indentation);
indentation = column;
}
else if (x == ']' || x == '}')
{
// if we close a bracket or brace, undo one level of indent (pop)
indentation = indentations.Pop();
}
else if (x == ':')
{
// if we see a colon, add spaces until we get to the next
// tab stop, but without using tab characters!
while ((column % TABBING) != 0)
{
sb.Append(' ');
column++;
}
}
}
}
}
return sb.ToString();
}

public static string FormatOutput(string jsonString)
{
var stringBuilder = new StringBuilder();

bool escaping = false;
bool inQuotes = false;
int indentation = 0;

foreach (char character in jsonString)
{
if (escaping)
{
escaping = false;
stringBuilder.Append(character);
}
else
{
if (character == '\')
{
escaping = true;
stringBuilder.Append(character);
}
else if (character == '"')
{
inQuotes = !inQuotes;
stringBuilder.Append(character);
}
else if (!inQuotes)
{
if (character == ',')
{
stringBuilder.Append(character);
stringBuilder.Append(" ");
stringBuilder.Append(' ', indentation);
}
else if (character == '[' || character == '{')
{
stringBuilder.Append(character);
stringBuilder.Append(" ");
stringBuilder.Append(' ', ++indentation);
}
else if (character == ']' || character == '}')
{
stringBuilder.Append(" ");
stringBuilder.Append(' ', --indentation);
stringBuilder.Append(character);
}
else if (character == ':')
{
stringBuilder.Append(character);
stringBuilder.Append(' ');
}
else
{
stringBuilder.Append(character);
}
}
else
{
stringBuilder.Append(character);
}
}
}

return stringBuilder.ToString();
}