/// <summary>
/// Escapes the string.
/// </summary>
/// <param name="buf">The buf.</param>
/// <param name="encoding">The encoding.</param>
/// <returns></returns>
internal static byte[] EscapeString(byte[] buf, PdfEncodingBase encoding)
{
List <byte> list = new List <byte>();
for (int i = 0; i < buf.Length; i++)
{
byte item = buf[i];
switch (item)
{
case 8:
{
list.AddRange(encoding.GetBytes(@"\b"));
continue;
}
case 9:
{
list.AddRange(encoding.GetBytes(@"\t"));
continue;
}
case 10:
{
list.AddRange(encoding.GetBytes(@"\n"));
continue;
}
case 12:
{
list.AddRange(encoding.GetBytes(@"\f"));
continue;
}
case 13:
{
list.AddRange(encoding.GetBytes(@"\r"));
continue;
}
case 40:
case 0x29:
case 0x5c:
{
list.AddRange(encoding.GetBytes(@"\"));
list.Add(item);
continue;
}
}
list.Add(item);
}
return(list.ToArray());
}
/// <summary>
/// Initializes a new instance of the <see cref="T:Dt.Pdf.PdfStreamWriter" /> class.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="encoding">The encoding.</param>
public PdfStreamWriter(System.IO.Stream stream, PdfEncodingBase encoding)
{
if (stream == null)
{
throw new PdfArgumentNullException("stream");
}
if (encoding == null)
{
throw new PdfArgumentNullException("encoding");
}
if (!stream.CanWrite)
{
throw new PdfArgumentException("stream");
}
this.stream = stream;
this.encoding = encoding;
}
