/**
* Open a named physical or virtual file, extract the text from it, search
* for document or page attachments, and process these recursively. Either
* filename must be supplied for physical files, or data+length from which a
* virtual file will be created. The caller cannot create the PVF file since
* we create a new TET object here in case an exception happens with the
* embedded document - the caller can happily continue with his TET object
* even in case of an exception here.
*
* @param outfp
* @param filename
* @param realname
* @param data
*
* @return 0 if successful, otherwise a non-null code to be used as exit
* status
*/
static int process_document(BinaryWriter outfp, String filename, String realname,
byte[] data)
{
int retval = 0;
TET tet = null;
try
{
String pvfname = "/pvf/attachment";
tet = new TET();
/*
* Construct a PVF file if data instead of a filename was provided
*/
if (filename == null || filename.Length == 0)
{
tet.create_pvf(pvfname, data, "");
filename = pvfname;
}
tet.set_option(globaloptlist);
int doc = tet.open_document(filename, docoptlist);
if (doc == -1)
{
Console.WriteLine("Error " + tet.get_errnum() + " in "
+ tet.get_apiname() + "() (source: attachment '"
+ realname + "'): " + tet.get_errmsg());
retval = 5;
}
else
{
process_document(outfp, tet, doc);
}
/*
* If there was no PVF file deleting it won't do any harm
*/
tet.delete_pvf(pvfname);
}
catch (TETException e)
{
Console.WriteLine("Error " + e.get_errnum() + " in "
+ e.get_apiname() + "() (source: attachment '" + realname
+ "'): " + e.get_errmsg());
retval = 1;
}
catch (Exception e)
{
Console.WriteLine("General Exception: " + e.ToString());
retval = 1;
}
finally
{
if (tet != null)
{
tet.Dispose();
}
}
return(retval);
}