// Detects a Unicode encoding
private int DetectUnicodeEncoding()
{
int mode = this.mode;
int c1 = this.stream.ReadByte();
int c2;
if (c1 < 0)
{
return(-1);
}
Utf8Reader utf8reader;
switch (mode)
{
case 0:
// UTF-8 only
utf8reader = new Utf8Reader(this.stream, this.errorThrow);
this.reader = utf8reader;
utf8reader.Unget(c1);
c1 = utf8reader.ReadChar();
if (c1 == 0xfeff && !this.dontSkipUtf8Bom)
{
// Skip BOM
c1 = utf8reader.ReadChar();
}
return(c1);
case 1:
case 3:
c2 = this.DetectUtf8OrUtf16(c1);
if (c2 >= -1)
{
return(c2);
}
break;
case 2:
case 4:
// UTF-8, UTF-16, or UTF-32
c2 = this.DetectUtf8Or16Or32(c1);
if (c2 >= -1)
{
return(c2);
}
break;
}
// Default case: assume UTF-8
utf8reader = new Utf8Reader(this.stream, this.errorThrow);
this.reader = utf8reader;
utf8reader.Unget(c1);
c1 = utf8reader.ReadChar();
if (!this.dontSkipUtf8Bom && c1 == 0xfeff)
{
// Skip BOM
c1 = utf8reader.ReadChar();
}
return(c1);
}
// Detects a Unicode encoding
private int DetectUnicodeEncoding()
{
int mode = this.mode;
int c1 = this.stream.ReadByte();
int c2;
if (c1 < 0)
{
return(-1);
}
Utf8Reader utf8reader;
if (mode == 0)
{
// UTF-8 only
utf8reader = new Utf8Reader(this.stream, this.errorThrow);
this.reader = utf8reader;
c1 = utf8reader.ReadChar();
if (c1 == 0xfeff)
{
// Skip BOM
c1 = utf8reader.ReadChar();
}
return(c1);
}
else if (mode == 1 || mode == 3)
{
c2 = this.DetectUtf8OrUtf16(c1);
if (c2 >= -1)
{
return(c2);
}
}
else if (mode == 2 || mode == 4)
{
// UTF-8, UTF-16, or UTF-32
c2 = this.DetectUtf8Or16Or32(c1);
if (c2 >= -1)
{
return(c2);
}
}
// Default case: assume UTF-8
utf8reader = new Utf8Reader(this.stream, this.errorThrow);
this.reader = utf8reader;
utf8reader.Unget(c1);
c1 = utf8reader.ReadChar();
if (!this.dontSkipUtf8Bom && c1 == 0xfeff)
{
// Skip BOM
c1 = utf8reader.ReadChar();
}
return(c1);
}
// Detects a Unicode encoding
private int DetectUnicodeEncoding()
{
int mode = this.mode;
int c1 = this.stream.ReadByte();
int c2;
if (c1 < 0) {
return -1;
}
Utf8Reader utf8reader;
if (mode == 0) {
// UTF-8 only
utf8reader = new Utf8Reader(this.stream, this.errorThrow);
this.reader = utf8reader;
c1 = utf8reader.ReadChar();
if (c1 == 0xfeff) {
// Skip BOM
c1 = utf8reader.ReadChar();
}
return c1;
} else if (mode == 1 || mode == 3) {
c2 = this.DetectUtf8OrUtf16(c1);
if (c2 >= -1) {
return c2;
}
} else if (mode == 2 || mode == 4) {
// UTF-8, UTF-16, or UTF-32
c2 = this.DetectUtf8Or16Or32(c1);
if (c2 >= -1) {
return c2;
}
}
// Default case: assume UTF-8
utf8reader = new Utf8Reader(this.stream, this.errorThrow);
this.reader = utf8reader;
utf8reader.Unget(c1);
c1 = utf8reader.ReadChar();
if (!this.dontSkipUtf8Bom && c1 == 0xfeff) {
// Skip BOM
c1 = utf8reader.ReadChar();
}
return c1;
}