| private static InURISet ( char ch, URISetType flags ) : bool | ||
| ch | char | |
| flags | URISetType | |
| return | bool | |
private static String Encode(Object uri, URISetType flags)
{
String uriStr = Convert.ToString(uri);
StringBuilder resultStr = new StringBuilder();
for (int i = 0; i < uriStr.Length; i++)
{
char ch = uriStr[i];
if (GlobalObject.InURISet(ch, flags))
{
resultStr.Append(ch);
}
else
{
int value = (int)ch;
if (value >= 0 && value <= 0x7F)
{
GlobalObject.AppendInHex(resultStr, value);
}
else if (value >= 0x0080 && value <= 0x07FF)
{
GlobalObject.AppendInHex(resultStr, value >> 6 | 0xC0);
GlobalObject.AppendInHex(resultStr, value & 0x3F | 0x80);
}
else if (value < 0xD800 || value > 0xDFFF)
{
GlobalObject.AppendInHex(resultStr, value >> 12 | 0xE0);
GlobalObject.AppendInHex(resultStr, value >> 6 & 0x3F | 0x80);
GlobalObject.AppendInHex(resultStr, value & 0x3F | 0x80);
}
else
{
if (value >= 0xDC00 && value <= 0xDFFF)
{
throw new JScriptException(JSError.URIEncodeError);
}
if (++i >= uriStr.Length)
{
throw new JScriptException(JSError.URIEncodeError);
}
int value1 = (int)uriStr[i];
if (value1 < 0xDC00 || value1 > 0xDFFF)
{
throw new JScriptException(JSError.URIEncodeError);
}
value = (value - 0xD800 << 10) + value1 + 0x2400;
GlobalObject.AppendInHex(resultStr, value >> 18 | 0xF0);
GlobalObject.AppendInHex(resultStr, value >> 12 & 0x3F | 0x80);
GlobalObject.AppendInHex(resultStr, value >> 6 & 0x3F | 0x80);
GlobalObject.AppendInHex(resultStr, value & 0x3F | 0x80);
}
}
}
return(resultStr.ToString());
}
private static String Decode(Object encodedURI, URISetType flags)
{
String encodedURIStr = Convert.ToString(encodedURI);
StringBuilder resultStr = new StringBuilder();
for (int i = 0; i < encodedURIStr.Length; i++)
{
char ch = encodedURIStr[i];
if (ch != '%')
{
resultStr.Append(ch);
}
else
{
int start = i;
if (i + 2 >= encodedURIStr.Length)
{
throw new JScriptException(JSError.URIDecodeError);
}
byte b = HexValue(encodedURIStr[i + 1], encodedURIStr[i + 2]);
i += 2;
char ch1;
if ((b & 0x80) == 0)
{
ch1 = (char)b;
}
else
{
int n;
for (n = 1; ((b << n) & 0x80) != 0; n++)
{
;
}
if (n == 1 || n > 4 || i + (n - 1) * 3 >= encodedURIStr.Length)
{
throw new JScriptException(JSError.URIDecodeError);
}
int value = (int)b & 0xFF >> (n + 1);
for (; n > 1; n--)
{
if (encodedURIStr[i + 1] != '%')
{
throw new JScriptException(JSError.URIDecodeError);
}
b = HexValue(encodedURIStr[i + 2], encodedURIStr[i + 3]);
i += 3;
// The two leading bits should be 10 for a valid UTF-8 encoding.
if ((b & 0xC0) != 0x80)
{
throw new JScriptException(JSError.URIDecodeError);
}
value = value << 6 | (int)(b & 0x3F);
}
if (value >= 0xD800 && value < 0xE000)
{
throw new JScriptException(JSError.URIDecodeError);
}
if (value < 0x10000)
{
ch1 = (char)value;
}
else
{
if (value > 0x10FFFF)
{
throw new JScriptException(JSError.URIDecodeError);
}
resultStr.Append((char)((value - 0x10000 >> 10 & 0x3FF) + 0xD800));
resultStr.Append((char)((value - 0x10000 & 0x3FF) + 0xDC00));
continue;
}
}
if (GlobalObject.InURISet(ch1, flags))
{
resultStr.Append(encodedURIStr, start, i - start + 1);
}
else
{
resultStr.Append(ch1);
}
}
}
return(resultStr.ToString());
}