/// <summary>
/// Encodes a string for inclusion in JSON.
/// </summary>
/// <param name="s">String to encode.</param>
/// <returns>Encoded string.</returns>
public static string JsonStringEncode(string s)
{
return(JSON.Encode(s));
}
private static string[][] Parse(string Csv, ref int Pos, int Len)
{
List <string[]> Records = new List <string[]>();
List <string> Fields = new List <string>();
StringBuilder sb = new StringBuilder();
int State = 0;
int i = 0;
char ch;
bool sbEmpty = true;
while (Pos < Len)
{
ch = Csv[Pos++];
switch (State)
{
case 0:
if (ch == '"')
{
State += 2;
}
else if (ch == ',')
{
Fields.Add(string.Empty);
}
else if (ch == '\r' || ch == '\n')
{
if (Fields.Count > 0)
{
Records.Add(Fields.ToArray());
Fields.Clear();
}
}
else
{
sb.Append(ch);
sbEmpty = false;
State++;
}
break;
case 1: // Undelimited string
if (ch == ',')
{
Fields.Add(sb.ToString());
sb.Clear();
sbEmpty = true;
State = 0;
}
else if (ch == '\r' || ch == '\n')
{
Fields.Add(sb.ToString());
sb.Clear();
sbEmpty = true;
State = 0;
Records.Add(Fields.ToArray());
Fields.Clear();
}
else
{
sb.Append(ch);
sbEmpty = false;
}
break;
case 2: // String.
if (ch == '\\')
{
State++;
}
else if (ch == '"')
{
State--;
}
else
{
sb.Append(ch);
sbEmpty = false;
}
break;
case 3: // String, escaped character.
switch (ch)
{
case 'a':
sb.Append('\a');
break;
case 'b':
sb.Append('\b');
break;
case 'f':
sb.Append('\f');
break;
case 'n':
sb.Append('\n');
break;
case 'r':
sb.Append('\r');
break;
case 't':
sb.Append('\t');
break;
case 'v':
sb.Append('\v');
break;
case 'x':
i = 0;
State += 4;
break;
case 'u':
i = 0;
State += 2;
break;
default:
sb.Append(ch);
break;
}
sbEmpty = false;
State--;
break;
case 4: // hex digit 1(4)
i = JSON.HexDigit(ch);
State++;
break;
case 5: // hex digit 2(4)
i <<= 4;
i |= JSON.HexDigit(ch);
State++;
break;
case 6: // hex digit 3(4)
i <<= 4;
i |= JSON.HexDigit(ch);
State++;
break;
case 7: // hex digit 4(4)
i <<= 4;
i |= JSON.HexDigit(ch);
sb.Append((char)i);
sbEmpty = false;
State -= 5;
break;
}
}
if (!sbEmpty)
{
Fields.Add(sb.ToString());
}
if (Fields.Count > 0)
{
Records.Add(Fields.ToArray());
}
return(Records.ToArray());
}