public void LoadSortedUniqueWordList(IEnumerable <string> sortedWordList)
{
// load unique and sorted word list
if (textBuffer != null)
{
return;
}
if (firstChar == '\0' || lastChar == '\0')
{
throw new NotSupportedException();
}
//---------------
Dictionary <char, DevelopingWordGroup> wordGroups = new Dictionary <char, DevelopingWordGroup>();
textBuffer = new CustomDicTextBuffer(1024);
foreach (string line in sortedWordList)
{
char[] lineBuffer = line.Trim().ToCharArray();
int lineLen = lineBuffer.Length;
char c0;
if (lineLen > 0 && (c0 = lineBuffer[0]) != '#')
{
int startAt = textBuffer.CurrentPosition;
textBuffer.AddWord(lineBuffer);
#if DEBUG
if (lineLen > byte.MaxValue)
{
throw new NotSupportedException();
}
#endif
WordSpan wordspan = new WordSpan(startAt, (byte)lineLen);
//each wordgroup contains text span
DevelopingWordGroup found;
if (!wordGroups.TryGetValue(c0, out found))
{
found = new DevelopingWordGroup(new WordSpan(startAt, 1));
wordGroups.Add(c0, found);
}
found.AddWordSpan(wordspan);
}
//- next line
}
//------------------------------------------------------------------
textBuffer.Freeze();
//------------------------------------------------------------------
//do index
DoIndex(wordGroups);
//clear, not used
wordGroups.Clear();
}
void DoIndex(Dictionary <char, DevelopingWordGroup> wordGroups)
{
//1. expand word group
WordGroup[] newWordGroups = new WordGroup[this.lastChar - this.firstChar + 1];
foreach (var kp in wordGroups)
{
//for each dev word group
int index = TransformCharToIndex(kp.Key);
DevelopingWordGroup devWordGroup = kp.Value;
devWordGroup.DoIndex(this.textBuffer, this);
newWordGroups[index] = devWordGroup.ResultWordGroup;
}
this.wordGroups = newWordGroups;
}
WordGroup _resultWordGroup;//after call DoIndex()
internal void DoIndex(CustomDicTextBuffer textBuffer, CustomDic owner)
{
//recursive
if (this.PrefixLen > 7)
{
DoIndexOfSmallAmount(textBuffer);
#if DEBUG
dbugDataState = debugDataState.TooLongPrefix;
#endif
return;
}
//-----------------------------------------------
bool hasEvalPrefix = false;
if (subGroups == null)
{
subGroups = new DevelopingWordGroup[owner.LastChar - owner.FirstChar + 1];
}
//--------------------------------
int j = wordSpanList.Count;
int thisPrefixLen = this.PrefixLen;
int doSepAt = thisPrefixLen;
for (int i = 0; i < j; ++i)
{
WordSpan sp = wordSpanList[i];
if (sp.len > doSepAt)
{
char c = sp.GetChar(doSepAt, textBuffer);
int c_index = c - owner.FirstChar;
DevelopingWordGroup found = subGroups[c_index];
if (found == null)
{
//not found
found = new DevelopingWordGroup(new WordSpan(sp.startAt, (byte)(doSepAt + 1)));
subGroups[c_index] = found;
}
found.AddWordSpan(sp);
}
else
{
if (!hasEvalPrefix)
{
if (sp.SameTextContent(this.prefixSpan, textBuffer))
{
hasEvalPrefix = true;
this.PrefixIsWord = true;
}
}
}
}
#if DEBUG
this.dbugDataState = debugDataState.Indexed;
#endif
wordSpanList.Clear();
wordSpanList = null;
//--------------------------------
//do sup index
//foreach (WordGroup subgroup in this.wordGroups.Values)
bool hasSomeSubGroup = false;
foreach (DevelopingWordGroup subgroup in this.subGroups)
{
if (subgroup != null)
{
hasSomeSubGroup = true;
//****
//performance factor here,****
//in this current version
//if we not call DoIndex(),
//this subgroup need linear search-> so it slow
//so we call DoIndex until member count in the group <=3
//then it search faster,
//but dictionary-building time may increase.
if (subgroup.WordSpanListCount > 2)
{
subgroup.DoIndex(textBuffer, owner);
}
else
{
#if DEBUG
subgroup.dbugDataState = debugDataState.SmallAmountOfMembers;
#endif
subgroup.DoIndexOfSmallAmount(textBuffer);
}
}
}
//--------------------------------
#if DEBUG
this.dbugDataState = debugDataState.Indexed;
#endif
if (!hasSomeSubGroup)
{
//clear
subGroups = null;
}
//--------------------------------
WordGroup[] newsubGroups = null;
if (subGroups != null)
{
newsubGroups = new WordGroup[subGroups.Length];
for (int i = subGroups.Length - 1; i >= 0; --i)
{
DevelopingWordGroup subg = subGroups[i];
if (subg != null)
{
newsubGroups[i] = subg.ResultWordGroup;
}
}
}
//--------------------------------
this._resultWordGroup = new WordGroup(
this.prefixSpan,
newsubGroups,
null,
this.PrefixIsWord);
}
public void LoadFromTextfile(string filename)
{
//once only
if (textBuffer != null)
{
return;
}
if (firstChar == '\0' || lastChar == '\0')
{
throw new NotSupportedException();
}
//---------------
Dictionary <char, DevelopingWordGroup> wordGroups = new Dictionary <char, DevelopingWordGroup>();
using (FileStream fs = new FileStream(filename, FileMode.Open))
using (StreamReader reader = new StreamReader(fs))
{
//init with filesize
textBuffer = new TextBuffer((int)fs.Length);
string line = reader.ReadLine();
while (line != null)
{
line = line.Trim();
char[] lineBuffer = line.ToCharArray();
int lineLen = lineBuffer.Length;
char c0;
if (lineLen > 0 && (c0 = lineBuffer[0]) != '#')
{
int startAt = textBuffer.CurrentPosition;
textBuffer.AddWord(lineBuffer);
#if DEBUG
if (lineLen > byte.MaxValue)
{
throw new NotSupportedException();
}
#endif
WordSpan wordspan = new WordSpan(startAt, (byte)lineLen);
//each wordgroup contains text span
DevelopingWordGroup found;
if (!wordGroups.TryGetValue(c0, out found))
{
found = new DevelopingWordGroup(new WordSpan(startAt, 1));
wordGroups.Add(c0, found);
}
found.AddWordSpan(wordspan);
}
//- next line
line = reader.ReadLine();
}
reader.Close();
fs.Close();
}
//------------------------------------------------------------------
textBuffer.Freeze();
//------------------------------------------------------------------
//do index
DoIndex(wordGroups);
//clear, not used
wordGroups.Clear();
}
