private void Init()
{
ReadXrefPosition();
ReadXrefHeaders();
ReadXref();
gObjectReader = new PdfObjectReader(gpsr, gXref);
gTrailer = gObjectReader.ReadTrailer(gTrailerPosition);
}
public PdfWriter(string file, FileMode mode = FileMode.CreateNew, FileShare share = FileShare.Read, Encoding encoding = null, bool updatePdf = false)
{
gUpdatePdf = updatePdf;
if (updatePdf)
mode = FileMode.Open;
gfs = new FileStream(file, mode, FileAccess.ReadWrite, share);
gw = new Writer(gfs, encoding);
if (updatePdf)
{
//gpr = new PdfReader(file);
gpr = new PdfReader(gfs, encoding);
gTrailer = gpr.Trailer;
gXref = gpr.Xref;
gUpdatePosition = gpr.XrefPosition;
}
else
WriteHeader();
}
public PdfWriter(string file, FileMode mode = FileMode.CreateNew, FileShare share = FileShare.Read, Encoding encoding = null, bool updatePdf = false)
{
gUpdatePdf = updatePdf;
if (updatePdf)
{
mode = FileMode.Open;
}
//gfs = new FileStream(file, mode, FileAccess.ReadWrite, share);
gfs = zFile.Open(file, mode, FileAccess.ReadWrite, share);
gw = new Writer(gfs, encoding);
if (updatePdf)
{
//gpr = new PdfReader(file);
gpr = new PdfReader(gfs, encoding);
gTrailer = gpr.Trailer;
gXref = gpr.Xref;
gUpdatePosition = gpr.XrefPosition;
}
else
{
WriteHeader();
}
}
public IPdfValue ReadPdfValue(ref string s)
{
// 1 0 R
// /OneColumn
// /Producer (FPDF 1.6)
// /CreationDate (D:20121205105056)
// [3 0 R /FitH null]
// [0 0 907.09 1292.59]
while (s.Length == 0)
{
s = gpsr.ReadLine();
}
Regex rg_value_name = new Regex(@"^/([a-zA-Z0-9_\-\+]+) *", RegexOptions.Compiled);
Regex rg_value_string = new Regex(@"^\((?:(D):([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2}))?([^)]*)\)", RegexOptions.Compiled);
Regex rg_end_array = new Regex(@"^ *\] *", RegexOptions.Compiled);
Regex rg_value_bool = new Regex(@"^ *(true|false) *", RegexOptions.Compiled | RegexOptions.IgnoreCase);
Regex rg_value_object_ref = new Regex("^ *([0-9]+) +([0-9]+) +R *", RegexOptions.Compiled);
Regex rg_value_double = new Regex(@"^ *(-?[0-9]+\.[0-9]+) *", RegexOptions.Compiled);
Regex rg_value_int = new Regex(@"^ *(-?[0-9]+) *", RegexOptions.Compiled);
Regex rg_value_null = new Regex(@"^ *null *", RegexOptions.Compiled);
Match match;
if (s[0] == '/')
{
match = rg_value_name.Match(s);
if (!match.Success)
{
throw new PBException("error reading value {0} line {1} \"{2}\"", gpsr.ObjectName, gpsr.LineNumber, s);
}
s = s.Substring(match.Length);
return(new PdfValueName {
valueName = match.Groups[1].Value
});
}
// /Producer (FPDF 1.6)
if (s[0] == '(')
{
match = rg_value_string.Match(s);
if (!match.Success)
{
throw new PBException("error reading value {0} line {1} \"{2}\"", gpsr.ObjectName, gpsr.LineNumber, s);
}
s = s.Substring(match.Length);
switch (match.Groups[1].Value)
{
case "D":
return(new PdfValueDateTime {
valueDateTime = new DateTime(int.Parse(match.Groups[2].Value), int.Parse(match.Groups[3].Value), int.Parse(match.Groups[4].Value),
int.Parse(match.Groups[5].Value), int.Parse(match.Groups[6].Value), int.Parse(match.Groups[7].Value))
});
case "":
return(new PdfValueString {
valueString = match.Groups[8].Value
});
}
}
if (s[0] == '[')
{
s = s.Substring(1);
List <IPdfValue> values = new List <IPdfValue>();
while (true)
{
match = rg_end_array.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
break;
}
values.Add(ReadPdfValue(ref s));
}
return(new PdfValueArray {
arrayValues = values.ToArray()
});
}
if (s.StartsWith("<<"))
{
PdfValueObject obj = new PdfValueObject();
if (s.Length > 2)
{
s = s.Substring(2);
}
else
{
s = gpsr.ReadLine();
}
while (true)
{
if (s.StartsWith(">>"))
{
s = s.Substring(2);
break;
}
PdfNValue value = ReadPdfNValue(ref s);
obj[value.name] = value;
if (s == "")
{
s = gpsr.ReadLine();
}
}
return(obj);
}
match = rg_value_bool.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return(new PdfValueBool {
valueBool = match.Groups[1].Value.ToLower() == "true" ? true : false
});
}
match = rg_value_object_ref.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return(new PdfValueObjectRef {
valueObjectId = int.Parse(match.Groups[1].Value), valueObjectGenerationNumber = int.Parse(match.Groups[2].Value)
});
}
match = rg_value_double.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return(new PdfValueDouble {
valueDouble = double.Parse(match.Groups[1].Value)
});
}
match = rg_value_int.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return(new PdfValueInt {
valueInt = int.Parse(match.Groups[1].Value)
});
}
match = rg_value_null.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return(new PdfValueNull());
}
throw new PBException("error reading value {0} line {1} \"{2}\"", gpsr.ObjectName, gpsr.LineNumber, s);
}
public IPdfValue ReadPdfValue(ref string s)
{
// 1 0 R
// /OneColumn
// /Producer (FPDF 1.6)
// /CreationDate (D:20121205105056)
// [3 0 R /FitH null]
// [0 0 907.09 1292.59]
while (s.Length == 0)
s = gpsr.ReadLine();
Regex rg_value_name = new Regex(@"^/([a-zA-Z0-9_\-\+]+) *", RegexOptions.Compiled);
Regex rg_value_string = new Regex(@"^\((?:(D):([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2}))?([^)]*)\)", RegexOptions.Compiled);
Regex rg_end_array = new Regex(@"^ *\] *", RegexOptions.Compiled);
Regex rg_value_bool = new Regex(@"^ *(true|false) *", RegexOptions.Compiled | RegexOptions.IgnoreCase);
Regex rg_value_object_ref = new Regex("^ *([0-9]+) +([0-9]+) +R *", RegexOptions.Compiled);
Regex rg_value_double = new Regex(@"^ *(-?[0-9]+\.[0-9]+) *", RegexOptions.Compiled);
Regex rg_value_int = new Regex(@"^ *(-?[0-9]+) *", RegexOptions.Compiled);
Regex rg_value_null = new Regex(@"^ *null *", RegexOptions.Compiled);
Match match;
if (s[0] == '/')
{
match = rg_value_name.Match(s);
if (!match.Success) throw new PBException("error reading value {0} line {1} \"{2}\"", gpsr.ObjectName, gpsr.LineNumber, s);
s = s.Substring(match.Length);
return new PdfValueName { valueName = match.Groups[1].Value };
}
// /Producer (FPDF 1.6)
if (s[0] == '(')
{
match = rg_value_string.Match(s);
if (!match.Success) throw new PBException("error reading value {0} line {1} \"{2}\"", gpsr.ObjectName, gpsr.LineNumber, s);
s = s.Substring(match.Length);
switch (match.Groups[1].Value)
{
case "D":
return new PdfValueDateTime { valueDateTime = new DateTime(int.Parse(match.Groups[2].Value), int.Parse(match.Groups[3].Value), int.Parse(match.Groups[4].Value),
int.Parse(match.Groups[5].Value), int.Parse(match.Groups[6].Value), int.Parse(match.Groups[7].Value)) };
case "":
return new PdfValueString { valueString = match.Groups[8].Value };
}
}
if (s[0] == '[')
{
s = s.Substring(1);
List<IPdfValue> values = new List<IPdfValue>();
while (true)
{
match = rg_end_array.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
break;
}
values.Add(ReadPdfValue(ref s));
}
return new PdfValueArray { arrayValues = values.ToArray() };
}
if (s.StartsWith("<<"))
{
PdfValueObject obj = new PdfValueObject();
if (s.Length > 2)
s = s.Substring(2);
else
s = gpsr.ReadLine();
while (true)
{
if (s.StartsWith(">>"))
{
s = s.Substring(2);
break;
}
PdfNValue value = ReadPdfNValue(ref s);
obj[value.name] = value;
if (s == "")
s = gpsr.ReadLine();
}
return obj;
}
match = rg_value_bool.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return new PdfValueBool { valueBool = match.Groups[1].Value.ToLower() == "true" ? true : false };
}
match = rg_value_object_ref.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return new PdfValueObjectRef { valueObjectId = int.Parse(match.Groups[1].Value), valueObjectGenerationNumber = int.Parse(match.Groups[2].Value) };
}
match = rg_value_double.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return new PdfValueDouble { valueDouble = double.Parse(match.Groups[1].Value) };
}
match = rg_value_int.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return new PdfValueInt { valueInt = int.Parse(match.Groups[1].Value) };
}
match = rg_value_null.Match(s);
if (match.Success)
{
s = s.Substring(match.Length);
return new PdfValueNull();
}
throw new PBException("error reading value {0} line {1} \"{2}\"", gpsr.ObjectName, gpsr.LineNumber, s);
}
private void Init()
{
ReadXrefPosition();
ReadXrefHeaders();
ReadXref();
gObjectReader = new PdfObjectReader(gpsr, gXref);
gTrailer = gObjectReader.ReadTrailer(gTrailerPosition);
}
public PdfInstructionInilineImage ReadInlineImage()
{
PdfInstructionInilineImage instruction = new PdfInstructionInilineImage();
PdfObjectReader por = new PdfObjectReader(new PdfStreamReader(gr));
PdfValueObject prm = new PdfValueObject();
while (true)
{
string s = gr.ReadLine();
if (s == null) throw new PBException("error reading inline image ID not found");
if (s == "ID") break;
PdfNValue value = por.ReadPdfNValue(ref s);
prm[value.name] = value;
if (s != "") throw new PBException("error reading inline image wrong parameter \"{0}\"", s);
}
instruction.prm = prm;
instruction.stream = gr.ReadBytesUntil("\nEI\n");
return instruction;
}
