Ooui-tws-port/Ooui/JsonConvert.cs

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4.5 KiB
C#
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using System;
namespace Ooui
{
class JsonConvert
{
public static void WriteJsonString (System.IO.TextWriter w, string s)
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{
w.Write ('\"');
for (var i = 0; i < s.Length; i++) {
var c = s[i];
if (c == '\"') {
w.Write ("\\\"");
}
else if (c == '\r') {
w.Write ("\\r");
}
else if (c == '\n') {
w.Write ("\\n");
}
else if (c == '\t') {
w.Write ("\\t");
}
else if (c == '\b') {
w.Write ("\\b");
}
else if (c == '\\') {
w.Write ("\\");
}
else {
w.Write (c);
}
}
w.Write ('\"');
}
public static void WriteJsonValue (System.IO.TextWriter w, object value)
{
if (value == null) {
w.Write ("null");
return;
}
var s = value as string;
if (s != null) {
WriteJsonString (w, s);
return;
}
var a = value as Array;
if (a != null) {
w.Write ('[');
var head = "";
foreach (var o in a) {
w.Write (head);
WriteJsonValue (w, o);
head = ",";
}
w.Write (']');
return;
}
var e = value as EventTarget;
if (e != null) {
w.Write ('\"');
w.Write (e.Id);
w.Write ('\"');
return;
}
if (value is Color) {
WriteJsonString (w, ((Color)value).ToString ());
return;
}
var icult = System.Globalization.CultureInfo.InvariantCulture;
if (value is double) {
w.Write (((double)value).ToString (icult));
return;
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}
if (value is int) {
w.Write (((int)value).ToString (icult));
return;
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}
if (value is float) {
w.Write (((float)value).ToString (icult));
return;
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}
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w.Write (Newtonsoft.Json.JsonConvert.SerializeObject (value));
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}
public static string SerializeObject (object value)
{
using (var sw = new System.IO.StringWriter ()) {
WriteJsonValue (sw, value);
return sw.ToString ();
}
}
static object ReadJsonArray (string j, ref int i)
{
throw new NotImplementedException ();
}
static object ReadJsonObject (string json, ref int i)
{
var e = json.Length;
while (i < e) {
while (i < e && char.IsWhiteSpace (json[i]))
i++;
if (i >= e)
throw new Exception ("JSON Unexpected end");
var n = e - i;
i++;
}
throw new NotImplementedException ();
}
static object ReadJsonString (string j, ref int i)
{
throw new NotImplementedException ();
}
static object ReadJsonNumber (string j, ref int i)
{
throw new NotImplementedException ();
}
static object ReadJsonValue (string json, ref int i)
{
var e = json.Length;
while (i < e && char.IsWhiteSpace (json[i]))
i++;
if (i >= e)
throw new Exception ("JSON Unexpected end");
var n = e - i;
switch (json[i]) {
case '[':
return ReadJsonArray (json, ref i);
case '{':
return ReadJsonObject (json, ref i);
case '\"':
return ReadJsonString (json, ref i);
case 'f':
i += 5;
return false;
case 't':
i += 4;
return true;
default:
return ReadJsonNumber (json, ref i);
}
}
public static object ReadJsonValue (string json, int startIndex)
{
var i = startIndex;
return ReadJsonValue (json, ref i);
}
}
}