internal override void BreakWord(WordVisitor visitor, char[] charBuff, int startAt, int len)
{
visitor.State = VisitorState.Parsing;
visitor.SpanBreakInfo = s_latin;
DoBreak(visitor, charBuff, startAt, len);
}
public CustomBreaker()
{
ThrowIfCharOutOfRange = false;
//
_visitor = new WordVisitor();
_breakingEngine = _engBreakingEngine; //default eng-breaking engine
}
public static BreakSpan GetBreakSpan(this WordVisitor vis)
{
return(new BreakSpan()
{
startAt = vis.LatestSpanStartAt,
len = vis.LatestSpanLen,
wordKind = vis.LatestWordKind
});
}
internal WordGroup GetSubGroup(WordVisitor visitor, WordGroup wordGroup)
{
char c = visitor.Char;
if (!CanHandle(c))
{
//can't handle
//then no furtur sub group
visitor.State = VisitorState.OutOfRangeChar;
return(null);
}
//-----------------
//can handle
WordGroup[] subGroups = wordGroup.GetSubGroups();
if (subGroups != null)
{
return(subGroups[c - this.FirstUnicodeChar]);
}
return(null);
}
public override void BreakWord(WordVisitor visitor, char[] charBuff, int startAt, int len)
{
visitor.State = VisitorState.Parsing;
this._startAt = startAt;
this._len = len;
this._endAt = startAt + len;
char c_first = this.FirstUnicodeChar;
char c_last = this.LastUnicodeChar;
int endAt = startAt + len;
Stack <int> candidate = visitor.GetTempCandidateBreaks();
for (int i = startAt; i < endAt;)
{
//find proper start words;
char c = charBuff[i];
//----------------------
//check if c is in our responsiblity
if (c < c_first || c > c_last)
{
//out of our range
//should return ?
visitor.State = VisitorState.OutOfRangeChar;
return;
}
//----------------------
WordGroup wordgroup = GetWordGroupForFirstChar(c);
if (wordgroup == null)
{
//continue next char
++i;
visitor.AddWordBreakAt(i);
visitor.SetCurrentIndex(visitor.LatestBreakAt);
}
else
{
//check if we can move next
if (visitor.IsEnd)
{
visitor.State = VisitorState.End;
return;
}
//---------------------
WordGroup c_wordgroup = wordgroup;
candidate.Clear();
int candidateLen = 1;
if (c_wordgroup.PrefixIsWord)
{
candidate.Push(candidateLen);
}
bool continueRead = true;
while (continueRead)
{
//not end
//then move next
candidateLen++;
visitor.SetCurrentIndex(i + 1);
if (visitor.IsEnd)
{
//end
visitor.State = VisitorState.End;
//----------------------------------------
WordGroup next1 = GetSubGroup(visitor, c_wordgroup);
if (next1 != null)
{
//accept
if (next1.PrefixIsWord)
{
candidate.Push(candidateLen);
}
}
else
{
if (c_wordgroup.WordSpanListCount > 0)
{
int p1 = visitor.CurrentIndex;
//p2: suggest position
int p2 = FindInWordSpans(visitor, c_wordgroup);
if (p2 - p1 > 0)
{
visitor.AddWordBreakAt(p2);
visitor.SetCurrentIndex(p2);
candidate.Clear();
}
}
}
//----------------------------------------
i = endAt; //temp fix, TODO: review here
//choose best match
if (candidate.Count > 0)
{
int candi1 = candidate.Pop();
//try
visitor.SetCurrentIndex(visitor.LatestBreakAt + candi1);
//use this
//use this candidate if possible
visitor.AddWordBreakAt(visitor.CurrentIndex);
break;
}
continueRead = false;
//----------------------------------------
return;
}
WordGroup next = GetSubGroup(visitor, c_wordgroup);
//for debug
//string prefix = (next == null) ? "" : next.GetPrefix(CurrentCustomDic.TextBuffer);
if (next != null)
{
if (next.PrefixIsWord)
{
candidate.Push(candidateLen);
}
c_wordgroup = next;
i = visitor.CurrentIndex;
if (visitor.IsEnd)
{
i = endAt; //temp fix, TODO: review here
bool foundCandidate = false;
//choose best match
while (candidate.Count > 0)
{
int candi1 = candidate.Pop();
//try
visitor.SetCurrentIndex(visitor.LatestBreakAt + candi1);
if (visitor.State != VisitorState.End)
{
char next_char = visitor.Char;
if (CanBeStartChar(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAt(visitor.CurrentIndex);
foundCandidate = true;
break;
}
}
else
{
visitor.AddWordBreakAt(visitor.CurrentIndex);
foundCandidate = true;
break;
}
}
continueRead = false;
}
}
else
{
continueRead = false;
//no deeper group
//then check if
if (c_wordgroup.WordSpanListCount > 0)
{
int p1 = visitor.CurrentIndex;
//p2: suggest position
int p2 = FindInWordSpans(visitor, c_wordgroup);
if (p2 - p1 > 0)
{
visitor.AddWordBreakAt(p2);
visitor.SetCurrentIndex(p2);
}
else
{
//on the same pos
if (visitor.State == VisitorState.OutOfRangeChar)
{
return;
}
else
{
bool foundCandidate = false;
int candi_count = candidate.Count;
if (candi_count == 0)
{
//no candidate
//need to step back
int latestBreakAt = visitor.LatestBreakAt;
if (visitor.CurrentIndex - 1 > latestBreakAt)
{
//steop back
visitor.SetCurrentIndex(visitor.CurrentIndex - 1);
char current_char = visitor.Char;
if (CanBeStartChar(current_char))
{
if (visitor.CurrentIndex - 1 > latestBreakAt)
{
}
else
{
}
}
else
{
}
}
else
{
throw new NotSupportedException("i-3311");
}
}
else
{
while (candi_count > 0)
{
int candi1 = candidate.Pop();
//try
visitor.SetCurrentIndex(visitor.LatestBreakAt + candi1);
//check if we can use this candidate
if (visitor.State != VisitorState.End)
{
char next_char = visitor.Char;
if (CanBeStartChar(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAt(visitor.CurrentIndex);
foundCandidate = true;
break;
}
}
else
{
visitor.AddWordBreakAt(visitor.CurrentIndex);
foundCandidate = true;
}
}
}
if (!foundCandidate)
{
//no next word, no candidate
//skip this
char next_char = visitor.Char;
if (CanBeStartChar(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAt(visitor.CurrentIndex);
foundCandidate = true;
break;
}
else
{
//TODO: review here
visitor.SetCurrentIndex(visitor.LatestBreakAt + 1);
visitor.AddWordBreakAt(visitor.CurrentIndex);
visitor.SetCurrentIndex(visitor.LatestBreakAt);
}
}
}
}
}
else
{
bool foundCandidate = false;
while (candidate.Count > 0)
{
int candi1 = candidate.Pop();
//try
visitor.SetCurrentIndex(visitor.LatestBreakAt + candi1);
if (visitor.State == VisitorState.End)
{
visitor.AddWordBreakAt(visitor.CurrentIndex);
return;
}
//check if we can use this candidate
char next_char = visitor.Char;
if (!CanHandle(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAt(visitor.CurrentIndex);
foundCandidate = true;
break;
}
if (CanBeStartChar(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAt(visitor.CurrentIndex);
foundCandidate = true;
break;
}
}
if (!foundCandidate)
{
if (candidateLen > 0)
{
//use that candidate len
visitor.AddWordBreakAt(visitor.CurrentIndex);
visitor.SetCurrentIndex(visitor.LatestBreakAt);
}
}
}
i = visitor.CurrentIndex;
}
}
}
}
//------
if (visitor.CurrentIndex >= len - 1)
{
//the last one
visitor.State = VisitorState.End;
}
}
int FindInWordSpans(WordVisitor visitor, WordGroup wordGroup)
{
WordSpan[] wordSpans = wordGroup.GetWordSpans();
if (wordSpans == null)
{
throw new NotSupportedException();
}
//at this wordgroup
//no subground anymore
//so we should find the word one by one
//start at prefix
//and select the one that
int readLen = visitor.CurrentIndex - visitor.LatestBreakAt;
int nwords = wordSpans.Length;
//only 1 that match
TextBuffer currentTextBuffer = CurrentCustomDic.TextBuffer;
//we sort unindex string ***
//so we find from longest one( last) to begin
for (int i = nwords - 1; i >= 0; --i)
{
//loop test on each word
WordSpan w = wordSpans[i];
#if DEBUG
//string dbugstr = w.GetString(currentTextBuffer);
#endif
int savedIndex = visitor.CurrentIndex;
char c = visitor.Char;
int wordLen = w.len;
int matchCharCount = 0;
if (wordLen > readLen)
{
for (int p = readLen; p < wordLen; ++p)
{
char c2 = w.GetChar(p, currentTextBuffer);
if (c2 == c)
{
matchCharCount++;
//match
//read next
if (!visitor.IsEnd)
{
visitor.SetCurrentIndex(visitor.CurrentIndex + 1);
c = visitor.Char;
}
else
{
//no more data in visitor
break;
}
}
else
{
break;
}
}
}
//reset
if (readLen + matchCharCount == wordLen)
{
int newBreakAt = visitor.LatestBreakAt + wordLen;
visitor.SetCurrentIndex(newBreakAt);
//--------------------------------------------
if (visitor.State == VisitorState.End)
{
return(newBreakAt);
}
//check next char can be the char of new word or not
//this depends on each lang
char canBeStartChar = visitor.Char;
if (CanHandle(canBeStartChar))
{
if (CanBeStartChar(canBeStartChar))
{
return(newBreakAt);
}
else
{
//back to savedIndex
visitor.SetCurrentIndex(savedIndex);
return(savedIndex);
}
}
else
{
visitor.State = VisitorState.OutOfRangeChar;
return(newBreakAt);
}
}
visitor.SetCurrentIndex(savedIndex);
}
return(0);
}
public abstract void BreakWord(WordVisitor visitor, char[] charBuff, int startAt, int len);
public void SetNewBreakHandler(NewWordBreakHandlerDelegate newWordBreakHandler)
{
_visitor = new WordVisitor(newWordBreakHandler);
}
public CustomBreaker()
{
visitor = new WordVisitor(this);
}
internal override void BreakWord(WordVisitor visitor, char[] charBuff, int startAt, int len)
{
visitor.State = VisitorState.Parsing;
char c_first = this.FirstUnicodeChar;
char c_last = this.LastUnicodeChar;
int endAt = startAt + len;
visitor.SpanBreakInfo = _breakInfo;
Stack <int> candidateBreakList = visitor.GetTempCandidateBreaks();
bool breakPeroidInTextSpan = BreakPeroidInTextSpan;
for (int i = startAt; i < endAt;)
{
ENTER_LOOP:
//find proper start words;
char c = charBuff[i];
//----------------------
//check if c is in our responsiblity
if ((c < c_first || c > c_last))
{
if (c == '.')
{
if (breakPeroidInTextSpan)
{
//out of our range
//should return ?
visitor.State = VisitorState.OutOfRangeChar;
return;
}
else
{
//****
//concat eg. A.B.C
//***
++i;
continue;
}
}
else
{
//out of our range
//should return ?
visitor.State = VisitorState.OutOfRangeChar;
return;
}
}
//----------------------
WordGroup wordgroup = GetWordGroupForFirstChar(c);
if (wordgroup == null)
{
//continue next char
++i;
visitor.AddWordBreak_AndSetCurrentIndex(i, WordKind.Text);
}
else
{
//check if we can move next
if (visitor.IsEnd)
{
visitor.State = VisitorState.End;
return;
}
//---------------------
WordGroup c_wordgroup = wordgroup;
candidateBreakList.Clear();
int candidateLen = 1;
if (c_wordgroup.PrefixIsWord)
{
candidateBreakList.Push(candidateLen);
}
bool continueRead = true;
while (continueRead)
{
//not end
//then move next
visitor.SetCurrentIndex(i + 1);
if (visitor.IsEnd)
{
//end ***
visitor.State = VisitorState.End;
//----------------------------------------
WordGroup next1 = GetSubGroup(visitor, c_wordgroup);
bool latest_candidate_isNotWord = false;
if (next1 != null)
{
//accept
//---------------------
//since this is end word ...
//and next1 != null=> this has a link to next word group
//but it may be incomplete so => we need decision ***
if (next1.PrefixIsWord)
{
candidateBreakList.Push(candidateLen);
}
else
{
if (!DontMergeLastIncompleteWord)
{
latest_candidate_isNotWord = true;//word may has error
candidateBreakList.Push(candidateLen);
}
}
//---------------------
}
else
{
if (c_wordgroup.WordSpanListCount > 0)
{
int p1 = visitor.CurrentIndex;
//p2: suggest position
int p2 = FindInWordSpans(visitor, c_wordgroup);
if (p2 - p1 > 0)
{
visitor.AddWordBreak_AndSetCurrentIndex(p2, WordKind.Text);
candidateBreakList.Clear();
}
}
}
//----------------------------------------
i = endAt; //temp fix, TODO: review here
//choose best match
if (candidateBreakList.Count > 0)
{
if (DontMergeLastIncompleteWord)
{
int candi1 = candidateBreakList.Pop();
visitor.SetCurrentIndex(visitor.LatestBreakAt + candi1);
visitor.AddWordBreakAtCurrentIndex(
latest_candidate_isNotWord ?
WordKind.TextIncomplete :
WordKind.Text);
}
else
{
visitor.AddWordBreakAtCurrentIndex();
}
return;
}
continueRead = false;
//----------------------------------------
if (visitor.CurrentIndex >= len - 1)
{
//flush remaining char
if (visitor.LatestBreakAt < startAt + len)
{
visitor.AddWordBreakAtCurrentIndex();
}
}
return;
}
//----------------------------------------
candidateLen++;
if (!breakPeroidInTextSpan && visitor.Char == '.')
{
//treat abbrev
++i;
goto ENTER_LOOP;
}
//----------------------------------------
WordGroup next = GetSubGroup(visitor, c_wordgroup);
//for debug
//string prefix = (next == null) ? "" : next.GetPrefix(CurrentCustomDic.TextBuffer);
if (next != null)
{
if (next.PrefixIsWord)
{
candidateBreakList.Push(candidateLen);
}
c_wordgroup = next;
i = visitor.CurrentIndex;
if (visitor.IsEnd)
{
i = endAt; //temp fix, TODO: review here
#if DEBUG
bool dbugFoundCandidate = false;
#endif
//choose best match
while (candidateBreakList.Count > 0)
{
int candi1 = candidateBreakList.Pop();
//try
visitor.SetCurrentIndex(visitor.LatestBreakAt + candi1);
if (visitor.State != VisitorState.End)
{
char next_char = visitor.Char;
if (CanBeStartChar(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAtCurrentIndex();
#if DEBUG
dbugFoundCandidate = true;
#endif
break;
}
}
else
{
visitor.AddWordBreakAtCurrentIndex();
#if DEBUG
dbugFoundCandidate = true;
#endif
break;
}
}
continueRead = false;
}
}
else
{
continueRead = false;
//no deeper group
//then check if
if (c_wordgroup.WordSpanListCount > 0)
{
int p1 = visitor.CurrentIndex;
//p2: suggest position
int p2 = FindInWordSpans(visitor, c_wordgroup);
if (p2 - p1 > 0)
{
visitor.AddWordBreak_AndSetCurrentIndex(p2, WordKind.Text);
}
else
{
//on the same pos
if (visitor.State == VisitorState.OutOfRangeChar)
{
//***
if (this.DontMergeLastIncompleteWord)
{
//choose best match
int p3 = visitor.CurrentIndex;
int p4 = p3;
if (candidateBreakList.Count > 0)
{
int candi1 = candidateBreakList.Pop();
visitor.SetCurrentIndex(p4 = (visitor.LatestBreakAt + candi1));
visitor.AddWordBreakAtCurrentIndex();
}
//
if (p4 < p3)
{
visitor.SetCurrentIndex(p1);
visitor.AddWordBreakAtCurrentIndex();
}
return;
}
else
{
visitor.AddWordBreakAtCurrentIndex();
return;
}
}
else
{
bool foundCandidate = false;
int candi_count = candidateBreakList.Count;
if (candi_count == 0)
{
//no candidate
//need to step back
int latestBreakAt = visitor.LatestBreakAt;
if (visitor.CurrentIndex - 1 > latestBreakAt)
{
//step back
visitor.SetCurrentIndex(visitor.CurrentIndex - 1);
//TODO: review here again
#if DEBUG
char current_char = visitor.Char;
if (CanBeStartChar(current_char))
{
if (visitor.CurrentIndex - 1 > latestBreakAt)
{
}
else
{
}
}
else
{
}
#endif
}
else
{
throw new NotSupportedException("i-3311");
}
}
else
{
while (candidateBreakList.Count > 0)
{
int candi1 = candidateBreakList.Pop();
//try
visitor.SetCurrentIndex(visitor.LatestBreakAt + candi1);
//check if we can use this candidate
if (visitor.State != VisitorState.End)
{
char next_char = visitor.Char;
if (CanBeStartChar(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAtCurrentIndex();
foundCandidate = true;
break;
}
}
else
{
visitor.AddWordBreakAtCurrentIndex();
foundCandidate = true;
break;
}
}
}
if (!foundCandidate)
{
//no next word, no candidate
//skip this
char next_char = visitor.Char;
if (CanBeStartChar(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAtCurrentIndex();
foundCandidate = true;
break;
}
else
{
//TODO: review here
visitor.SetCurrentIndex(visitor.LatestBreakAt + 1);
visitor.AddWordBreakAtCurrentIndex();
visitor.SetCurrentIndex(visitor.LatestBreakAt);
}
}
}
}
}
else
{
bool foundCandidate = false;
while (candidateBreakList.Count > 0)
{
int candi1 = candidateBreakList.Pop();
//try
visitor.SetCurrentIndex(visitor.LatestBreakAt + candi1);
if (visitor.State == VisitorState.End)
{
visitor.AddWordBreakAtCurrentIndex();
return;
}
//check if we can use this candidate
char next_char = visitor.Char;
if (!CanHandle(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAtCurrentIndex();
foundCandidate = true;
break;
}
if (CanBeStartChar(next_char))
{
//use this
//use this candidate if possible
visitor.AddWordBreakAtCurrentIndex();
foundCandidate = true;
break;
}
}
if (!foundCandidate)
{
if (candidateLen > 0)
{
//use that candidate len
visitor.AddWordBreakAtCurrentIndex();
visitor.SetCurrentIndex(visitor.LatestBreakAt);
}
}
}
i = visitor.CurrentIndex;
}
}
}
}
//------
if (visitor.CurrentIndex >= len - 1)
{
//the last one
visitor.State = VisitorState.End;
if (visitor.LatestBreakAt < startAt + len)
{
visitor.AddWordBreakAt(startAt + len, WordKind.Text);
}
}
}
//
static void OnBreak(WordVisitor vis, in BreakBounds bb) => vis.AddWordBreak_AndSetCurrentIndex(bb.startIndex + bb.length, bb.kind);
internal override void BreakWord(WordVisitor visitor, char[] charBuff, int startAt, int len)
{
//use custom parsing
visitor.State = VisitorState.Parsing;
RunAgent agent = _runAdapter.Agent;
//collect arabic char and break
int arabic_len = 0;
int lim = startAt + len;
for (int i = startAt; i < lim; ++i)
{
char c = charBuff[i];
if (IsArabicChar(c))
{
arabic_len++;
}
else
{
break;
}
}
//
if (arabic_len == 0)
{
visitor.State = VisitorState.OutOfRangeChar;
return;
}
visitor.SpanBreakInfo = _breakInfo;
//only collect char
Line line1 = new Line(new string(charBuff, startAt, arabic_len));
_runAdapter.LoadLine(line1);
while (_runAdapter.MoveNext())
{
int offset = agent.Offset;
byte level = agent.Level;
int sp_len = agent.Length;
bool rtl = agent.IsRightToLeft;
if (rtl)
{
//temp fix
visitor.AddWordBreak_AndSetCurrentIndex(startAt + sp_len, WordKind.Text);
}
else
{
//use other engine
break;
}
//iter each run-span
//string tt = new string(buffer, offset, len);
//System.Diagnostics.Debug.WriteLine(tt);
}
if (visitor.CurrentIndex == startAt + len)
{
visitor.State = VisitorState.End;
}
else
{
//continue to other parser
visitor.State = VisitorState.OutOfRangeChar;
}
}
public CustomBreaker()
{
visitor = new WordVisitor(this);
breakingEngine = engBreakingEngine;
}