public static void Pack(BinaryReader input, BinaryWriter output)
{
if (input == null)
{
throw new ArgumentNullException("input");
}
if (output == null)
{
throw new ArgumentNullException("output");
}
CgtReader reader = new CgtReader(input);
CgtWriter writer = new CgtWriter(output);
string header = reader.ReadHeaderString();
Match headerMatch = FileHeader.Match(header);
if (headerMatch.Groups["version"].Value != "1.0")
{
throw new FileLoadException("The File Header is invalid or of an unsupported version for packing, only uncompressed V1.0 Compiled Grammar Files are supported");
}
writer.WriteHeaderString(header);
while (reader.HasMoreData())
{
CgtRecordType recordType = reader.ReadNextRecord();
switch (recordType)
{
case CgtRecordType.Charsets:
int index = reader.ReadIntegerEntry();
string chars = reader.ReadStringEntry();
DfaCharset charset = new DfaCharset(null, index, chars);
if (charset.SequenceLength >= 4)
{
writer.WriteNextRecord(CgtRecordType.PackedCharsets, 4);
writer.WriteIntegerEntry(index);
writer.WriteIntegerEntry(charset.SequenceStart);
writer.WriteIntegerEntry(charset.SequenceEnd);
writer.WriteStringEntry(new string(charset.CharactersExcludingSequence));
}
else
{
writer.WriteNextRecord(CgtRecordType.Charsets, 2);
writer.WriteIntegerEntry(index);
writer.WriteStringEntry(chars);
}
break;
default:
writer.WriteNextRecord(recordType, reader.EntryCount);
while (reader.EntryCount > 0)
{
reader.CopyEntry(writer);
}
break;
}
}
output.Flush();
}
public static void Pack(BinaryReader input, BinaryWriter output) {
if (input == null) {
throw new ArgumentNullException("input");
}
if (output == null) {
throw new ArgumentNullException("output");
}
CgtReader reader = new CgtReader(input);
CgtWriter writer = new CgtWriter(output);
string header = reader.ReadHeaderString();
Match headerMatch = FileHeader.Match(header);
if (headerMatch.Groups["version"].Value != "1.0") {
throw new FileLoadException("The File Header is invalid or of an unsupported version for packing, only uncompressed V1.0 Compiled Grammar Files are supported");
}
writer.WriteHeaderString(header);
while (reader.HasMoreData()) {
CgtRecordType recordType = reader.ReadNextRecord();
switch (recordType) {
case CgtRecordType.Charsets:
int index = reader.ReadIntegerEntry();
string chars = reader.ReadStringEntry();
DfaCharset charset = new DfaCharset(null, index, chars);
if (charset.SequenceLength >= 4) {
writer.WriteNextRecord(CgtRecordType.PackedCharsets, 4);
writer.WriteIntegerEntry(index);
writer.WriteIntegerEntry(charset.SequenceStart);
writer.WriteIntegerEntry(charset.SequenceEnd);
writer.WriteStringEntry(new string(charset.CharactersExcludingSequence));
} else {
writer.WriteNextRecord(CgtRecordType.Charsets, 2);
writer.WriteIntegerEntry(index);
writer.WriteStringEntry(chars);
}
break;
default:
writer.WriteNextRecord(recordType, reader.EntryCount);
while (reader.EntryCount > 0) {
reader.CopyEntry(writer);
}
break;
}
}
output.Flush();
}
