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JsonString.Unescape

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This commit is contained in:
ousttrue 2021-02-02 13:24:43 +09:00
parent 1dc393d4aa
commit 870614323a
2 changed files with 111 additions and 7 deletions
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79
Assets/UniGLTF/Runtime/UniJSON/Json/JsonString.cs
View File

@ -64,7 +64,7 @@ namespace UniJSON
}
var it = s.GetIterator();
while(it.MoveNext())
while (it.MoveNext())
{
var l = it.CurrentByteLength;
if (l == 1)
@ -174,6 +174,43 @@ namespace UniJSON
#endregion
#region Unquote
static byte CheckHex(int b)
{
switch ((char)b)
{
case '0': return 0;
case '1': return 1;
case '2': return 2;
case '3': return 3;
case '4': return 4;
case '5': return 5;
case '6': return 6;
case '7': return 7;
case '8': return 8;
case '9': return 9;
case 'A':
case 'a':
return 10;
case 'B':
case 'b':
return 11;
case 'C':
case 'c':
return 12;
case 'D':
case 'd':
return 13;
case 'E':
case 'e':
return 14;
case 'F':
case 'f':
return 15;
}
throw new ArgumentOutOfRangeException();
}
public static int Unescape(string src, IStore w)
{
int writeCount = 0;
@ -223,6 +260,17 @@ namespace UniJSON
Write('\t');
i += 2;
continue;
case 'u':
{
var u0 = CheckHex(src[i + 2]);
var u1 = CheckHex(src[i + 3]);
var u2 = CheckHex(src[i + 4]);
var u3 = CheckHex(src[i + 5]);
var u = (u0 << 12) + (u1 << 8) + (u2 << 4) + u3;
Write((char)u);
i += 6;
}
continue;
}
}
@ -250,7 +298,7 @@ namespace UniJSON
};
var it = s.GetIterator();
while(it.MoveNext())
while (it.MoveNext())
{
var l = it.CurrentByteLength;
if (l == 1)
@ -288,6 +336,33 @@ namespace UniJSON
Write((Byte)'\t');
it.MoveNext();
continue;
case (Byte)'u':
{
// skip back slash
it.MoveNext();
// skip u
it.MoveNext();
var u0 = CheckHex((char)it.Current);
it.MoveNext();
var u1 = CheckHex((char)it.Current);
it.MoveNext();
var u2 = CheckHex((char)it.Current);
it.MoveNext();
var u3 = CheckHex((char)it.Current);
var u = (u0 << 12) + (u1 << 8) + (u2 << 4) + u3;
var utf8 = Utf8String.From(new string(new char[] { (char)u }));
// var utf8 = Utf8String.From((int)u);
foreach (var x in utf8.Bytes)
{
Write(x);
}
}
continue;
}
}

39
Assets/UniGLTF/Tests/UniJSON/Utf8StringTest.cs
View File

@ -1,6 +1,7 @@
using NUnit.Framework;
using System.IO;
using System.Linq;
using System.Text;
namespace UniJSON
{
@ -168,10 +169,38 @@ namespace UniJSON
[Test]
public void UnicodeEscapeTest()
{
var src = "\"\\u8868\\u60c5\"";
var json = src.ParseAsJson();
var decoded = json.GetString();
Assert.AreEqual("表情", decoded);
// UTF-8 Encoding: 0xE8 0xA1 0xA8
// UTF-16 Encoding: 0x8868
// UTF-32 Encoding: 0x00008868
{
var src = "\"\\u8868\\u60c5\"";
var json = src.ParseAsJson();
var decoded = json.GetString();
Assert.AreEqual("表情", decoded);
}
{
Assert.AreEqual("表"[0], (char)0x8868);
}
{
var src = Utf8String.From("表");
var dst = src.Bytes.ToArray();
Assert.AreEqual(0xE8, dst[0]);
Assert.AreEqual(0xA1, dst[1]);
Assert.AreEqual(0xA8, dst[2]);
}
{
var src = Utf8String.From("\\u8868");
var ms = new MemoryStream();
JsonString.Unescape(src, new StreamStore(ms));
var dst = ms.ToArray();
Assert.AreEqual(0xE8, dst[0]);
Assert.AreEqual(0xA1, dst[1]);
Assert.AreEqual(0xA8, dst[2]);
}
}
}
}