/// <summary>
/// Parses all text record
/// </summary>
private IEnumerable <MobipocketRecord> ParseTextMobipocketRecords()
{
int bytesUsed = 0;
var parser = new TrailingEntryParser(Header.TrailingEntries);
int previousOverlapSize = 0;
//skip first record as header, and process all text records
for (int recordIndex = 0; recordIndex < Header.TextRecordCount; recordIndex++)
{
//get current record
var record = _pdb.Records[recordIndex + 1];
//read record
var mobiRecord = MobipocketRecord.FromBinary(record.Data, true, parser);
//uncompress text
mobiRecord.Text = GetRecordText(mobiRecord, previousOverlapSize, ref bytesUsed);
//yield record
yield return(mobiRecord);
//save trailing entries
previousOverlapSize = mobiRecord.TrailingEntries.IsMultibyteCharacterOverlapping ?
mobiRecord.TrailingEntries.MultibyteCharacterOverlap.Length : 0;
}
if (bytesUsed != Header.TotalTextLength)
{
throw new Exception("text length doesn't match used characters");
}
}
public static MobipocketRecord FromBinary(byte[] data, bool isTextRecord, TrailingEntryParser parser)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (isTextRecord && parser == null)
{
throw new ArgumentException("parser cannot be null if isTextRecord is true");
}
var record = new MobipocketRecord {
Data = data, IsTextRecord = isTextRecord
};
if (isTextRecord)
{
try
{
record.TrailingEntries = parser.Parse(data);
}
catch (Exception e)
{
throw new Exception("cannot parse trailing entries for record", e);
}
}
return(record);
}
public static MobipocketRecord FromBinary(byte[] data, bool isTextRecord, TrailingEntryParser parser)
{
if (data == null)
throw new ArgumentNullException("data");
if (isTextRecord && parser == null)
throw new ArgumentException("parser cannot be null if isTextRecord is true");
var record = new MobipocketRecord { Data = data, IsTextRecord = isTextRecord };
if (isTextRecord)
{
try
{
record.TrailingEntries = parser.Parse(data);
}
catch (Exception e)
{
throw new Exception("cannot parse trailing entries for record", e);
}
}
return record;
}
