public void TextHelpers_Decode1()
{
// Try parsing a simple unicode char and escaped char
string text = @"u\52 \l(foo.jpg)";
CharacterStream cs = new CharacterStream(new StringTextProvider(text));
Assert.IsFalse(TextHelpers.AtEscape(cs));
Assert.IsFalse(TextHelpers.AtUnicodeEscape(cs));
Assert.AreEqual(new DecodedChar('u', 1), TextHelpers.DecodeCurrentChar(cs));
Assert.IsTrue(cs.Advance(1));
Assert.IsTrue(TextHelpers.AtEscape(cs));
Assert.IsTrue(TextHelpers.AtUnicodeEscape(cs));
Assert.AreEqual('R', TextHelpers.DecodeCurrentChar(cs).Char);
Assert.AreEqual(4, TextHelpers.DecodeCurrentChar(cs).EncodedLength);
Assert.IsTrue(cs.Advance(4));
Assert.IsTrue(TextHelpers.AtEscape(cs));
Assert.IsFalse(TextHelpers.AtUnicodeEscape(cs));
Assert.AreEqual('l', TextHelpers.DecodeCurrentChar(cs).Char);
Assert.AreEqual(2, TextHelpers.DecodeCurrentChar(cs).EncodedLength);
Assert.IsTrue(cs.Advance(2));
Assert.IsFalse(TextHelpers.AtEscape(cs));
Assert.IsFalse(TextHelpers.AtUnicodeEscape(cs));
Assert.AreEqual(new DecodedChar('(', 1), TextHelpers.DecodeCurrentChar(cs));
Assert.AreEqual(@"uRl(foo.jpg)", TextHelpers.DecodeText(cs.TextProvider, 0, text.Length, forStringToken: false));
}
public void TextHelpers_Decode2()
{
// Try parsing a unicode char that's larger than 0xFFFF
CharacterStream cs = new CharacterStream(new StringTextProvider(@"\abcd1234"));
Assert.IsTrue(TextHelpers.AtEscape(cs));
Assert.IsTrue(TextHelpers.AtUnicodeEscape(cs));
DecodedChar dc = TextHelpers.DecodeCurrentChar(cs);
Assert.AreEqual(7, dc.EncodedLength);
Assert.IsTrue(dc.RequiresUtf32);
Assert.AreEqual(0xABCD12, dc.CharUtf32);
Assert.AreEqual('\0', dc.Char);
Assert.IsTrue(cs.Advance(dc.EncodedLength));
Assert.AreEqual('3', cs.CurrentChar);
}
