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Implement own Json

This commit is contained in:
Frank A. Krueger 2018-03-08 13:28:28 -08:00
parent b5dadbceb9
commit e78bde556b
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GPG Key ID: 0471C67474FFE664
3 changed files with 230 additions and 88 deletions
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161
Ooui/JsonConvert.cs Normal file
View File

@ -0,0 +1,161 @@
using System;
namespace Ooui
{
class JsonConvert
{
static void WriteJsonString (System.IO.TextWriter w, string s)
{
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));
}
if (value is int) {
w.Write (((int)value).ToString (icult));
}
if (value is float) {
w.Write (((float)value).ToString (icult));
}
WriteJsonString (w, Convert.ToString (value, icult));
}
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);
}
}
}

152
Ooui/Message.cs
View File

@ -36,91 +36,6 @@ namespace Ooui
Value = value,
};
static void WriteJsonString (System.IO.TextWriter w, string s)
{
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 ('\"');
}
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));
}
if (value is int) {
w.Write (((int)value).ToString (icult));
}
if (value is float) {
w.Write (((float)value).ToString (icult));
}
WriteJsonString (w, Convert.ToString (value, icult));
}
public void WriteJson (System.IO.TextWriter w)
{
w.Write ('{');
@ -139,7 +54,7 @@ namespace Ooui
w.Write (Key);
if (Value != null) {
w.Write ("\",\"v\":");
WriteJsonValue (w, Value);
JsonConvert.WriteJsonValue (w, Value);
w.Write ('}');
}
else {
@ -154,6 +69,71 @@ namespace Ooui
return sw.ToString ();
}
}
public static Message FromJson (string json)
{
var m = new Message ();
var i = 0;
var e = json.Length;
while (i < e) {
while (i < e && (json[i]==',' || json[i]=='{' || char.IsWhiteSpace (json[i])))
i++;
if (i >= e)
throw new Exception ("JSON Unexpected end");
var n = e - i;
if (json[i] == '}')
break;
if (n > 4 && json[i] == '\"' && json[i+2] == '\"' && json[i+3] == ':') {
switch (json[i + 1]) {
case 'm':
if (json[i + 4] == '\"' && json[i + 5] == 'e') {
m.MessageType = MessageType.Event;
}
i += 5;
while (i < e && json[i] != '\"') i++;
i++;
break;
case 'k': {
i += 5;
var se = i;
while (se < e && json[se] != '\"')
se++;
m.Key = json.Substring (i, se - i);
i = se + 1;
}
break;
case 'v':
m.Value = JsonConvert.ReadJsonValue (json, i + 4);
break;
}
}
else if (n > 5 && json[i] == '\"' && json[i + 3] == '\"' && json[i + 4] == ':' && json[i+5] == '\"') {
switch (json[i + 1]) {
case 'i': {
i += 6;
var se = i;
while (se < e && json[se] != '\"')
se++;
m.TargetId = json.Substring (i, se - i);
i = se + 1;
}
break;
}
}
else {
throw new Exception ("JSON Expected property");
}
}
return m;
}
public override string ToString ()
{
return ToJson ();
}
}
[JsonConverter (typeof (StringEnumConverter))]

5
Ooui/UI.cs
View File

@ -464,8 +464,9 @@ namespace Ooui
public static byte[] GetData (object obj)
{
var r = Newtonsoft.Json.JsonConvert.SerializeObject (obj);
return System.Text.Encoding.UTF8.GetBytes (r);
var r = Ooui.JsonConvert.SerializeObject (obj);
var e = new UTF8Encoding (false);
return e.GetBytes (r);
}
public override void Respond (HttpListenerContext listenerContext, CancellationToken token)