public TypeCoding GetTypeCoding(PatternMatch patternMatch)
{
if (!typeCharCoding.ContainsKey(patternMatch.type))
{
return(null);
}
return(new TypeCoding(typeCharCoding[patternMatch.type]));
}
public CodingInfo GetNewTypeInfo(PatternMatch patternMatch)
{
if (currentTypeCodingByte == 255)
{
return(null);
}
if (!typeCharCoding.ContainsKey(patternMatch.type))
{
typeCharCoding[patternMatch.type] = currentTypeCodingByte;
var codingInfoToReturn = new CodingInfo(patternMatch.type, currentTypeCodingByte);
currentTypeCodingByte++;
return(codingInfoToReturn);
}
return(null);
}
private void HandleString(string currentString)
{
if (currentString.Length > MaxStringLength || currentString.Length < MinStringLength)
{
CodeStringRaw(currentString);
return;
}
var match = FormatRegex.Match(currentString);
if (match.Success)
{
if (TestMatch(match))
{
var patternMatch = new PatternMatch(match);
var typeCoding = patternHandler.GetTypeCoding(patternMatch);
if (typeCoding == null)
{
var typeInfo = patternHandler.GetNewTypeInfo(patternMatch);
if (typeInfo == null)
{
CodeStringRaw(currentString);
return;
}
CodeTypeInfo(typeInfo);
typeCoding = patternHandler.GetTypeCoding(patternMatch);
}
var patternCoding = patternHandler.GetPatternCoding(patternMatch);
if (patternCoding == null)
{
var patternInfo = patternHandler.GetNewPatternInfo(patternMatch);
if (patternInfo == null)
{
CodeStringRaw(currentString);
return;
}
CodePatternInfo(patternInfo);
patternCoding = patternHandler.GetPatternCoding(patternMatch);
}
CodePatternString(patternCoding, typeCoding, patternMatch);
return;
}
}
CodeStringRaw(currentString);
}
public PatternCoding GetPatternCoding(PatternMatch patternMatch)
{
if (!typePatternDictionaryMapping.ContainsKey(patternMatch.type))
{
return(null);
}
var strSplit = patternMatch.str.Split(' ');
if (!typePatternDictionaryMapping[patternMatch.type].ContainsKey(strSplit.Length))
{
return(null);
}
foreach (var pattern in typePatternDictionaryMapping[patternMatch.type][strSplit.Length])
{
var arguments = new List <string>();
var needPattern = true;
for (int i = 0; i < strSplit.Length; i++)
{
if (pattern.strSplit[i] == ArgumentMark)
{
arguments.Add(strSplit[i]);
}
else
{
needPattern &= pattern.strSplit[i] == strSplit[i];
if (!needPattern)
{
break;
}
}
}
if (needPattern)
{
return(new PatternCoding(arguments, pattern.coding));
}
}
return(null);
}
private void CodePatternString(PatternCoding patternCoding, TypeCoding typeCoding, PatternMatch patternMatch)
{
uint length = 8 + 8 + 1 + 1 + 2 * (uint)patternCoding.arguments.Count;
for (int i = 0; i < patternCoding.arguments.Count; i++)
{
length += (uint)NeedEncoding.GetByteCount(patternCoding.arguments[i]);
}
length <<= 2;
length |= (uint)TypeBits.PatternString;
byte[] lenBytes = BitConverter.GetBytes(length);
compactFileStream.Write(lenBytes);
var difference = patternMatch.date.ToBinary() - lastDateBinary;
byte[] dateBytes = BitConverter.GetBytes(difference);
compactFileStream.Write(dateBytes);
lastDateBinary = patternMatch.date.ToBinary();
byte[] numBytes = BitConverter.GetBytes(patternMatch.number - lastNumber);
compactFileStream.Write(numBytes);
lastNumber = patternMatch.number;
compactFileStream.WriteByte(typeCoding.coding);
compactFileStream.WriteByte(patternCoding.coding);
for (int i = 0; i < patternCoding.arguments.Count; i++)
{
ushort bytesCount = (ushort)NeedEncoding.GetByteCount(patternCoding.arguments[i]);
byte[] argLenBytes = BitConverter.GetBytes(bytesCount);
compactFileStream.Write(argLenBytes);
compactFileStream.Write(NeedEncoding.GetBytes(patternCoding.arguments[i]));
}
}
public CodingInfo GetNewPatternInfo(PatternMatch patternMatch)
{
if (currentPatternCodingByte == 255)
{
return(null);
}
var strSplit = patternMatch.str.Split(' ');
if (strSplit.Length == 1)
{
return(null);
}
if (!typeCandidateDictionaryMapping.ContainsKey(patternMatch.type))
{
typeCandidateDictionaryMapping[patternMatch.type] = new Dictionary <int, List <PatternCandidate> >();
}
if (!typeCandidateDictionaryMapping[patternMatch.type].ContainsKey(strSplit.Length))
{
typeCandidateDictionaryMapping[patternMatch.type][strSplit.Length] = new List <PatternCandidate>();
}
foreach (var candidate in typeCandidateDictionaryMapping[patternMatch.type][strSplit.Length])
{
var anyShared = false;
var differentPartsCounter = 0;
var formatStringBuilder = new StringBuilder(patternMatch.str.Length);
var patternSplit = new string[strSplit.Length];
for (int i = 0; i < strSplit.Length; i++)
{
if (strSplit[i] == candidate.strSplit[i])
{
anyShared = true;
patternSplit[i] = candidate.strSplit[i];
formatStringBuilder.Append(strSplit[i]);
}
else
{
patternSplit[i] = ArgumentMark;
formatStringBuilder.Append($"{{{differentPartsCounter}}}");
differentPartsCounter++;
}
formatStringBuilder.Append(' ');
}
formatStringBuilder.Remove(formatStringBuilder.Length - 1, 1);
if (anyShared)
{
var formatPattern = formatStringBuilder.ToString();
if (!typePatternDictionaryMapping.ContainsKey(patternMatch.type))
{
typePatternDictionaryMapping[patternMatch.type] = new Dictionary <int, List <Pattern> >();
}
if (!typePatternDictionaryMapping[patternMatch.type].ContainsKey(strSplit.Length))
{
typePatternDictionaryMapping[patternMatch.type][strSplit.Length] = new List <Pattern>();
}
typePatternDictionaryMapping[patternMatch.type][strSplit.Length].Add(new Pattern(patternSplit, currentPatternCodingByte));
var toReturn = new CodingInfo(formatPattern, currentPatternCodingByte);
currentPatternCodingByte++;
return(toReturn);
}
}
typeCandidateDictionaryMapping[patternMatch.type][strSplit.Length].Add(new PatternCandidate(strSplit));
return(null);
}
