private ScanResultSegment GetNextChildSegment(Row Row, Span
currentSpan, int StartPos)
{
//this row has no text , just bail out...
if (StartPos >= Row.Text.Length)
{
return(new ScanResultSegment());
}
var Result = new ScanResultSegment {
HasContent = false, IsEndSegment = false
};
foreach (SpanDefinition ChildBlock in currentSpan.spanDefinition.childSpanDefinitions)
{
//scan each scope in each childblock
foreach (Scope Scope in ChildBlock.ScopePatterns)
{
PatternScanResult psr = Scope.Start.IndexIn(Row.Text, StartPos,
Scope.CaseSensitive, Separators);
int CurrentPosition = psr.Index;
if ((!Result.HasContent || CurrentPosition < Result.Position) &&
/*psr.Token != ""*/ psr.Index >= 0) //VVV - allow empty match
{
//we found a better match
//store this new match
Result.Pattern = Scope.Start;
Result.Position = CurrentPosition;
Result.Token = psr.Token;
Result.HasContent = true;
Result.spanDefinition = ChildBlock;
Result.Scope = Scope;
if (Scope.NormalizeCase)
{
if (!Scope.Start.IsComplex)
{
Result.Token = Scope.Start.StringPattern;
}
}
}
}
}
//no result , new ScanResultSegment();
if (!Result.HasContent)
{
return(new ScanResultSegment());
}
return(Result);
}
private ScanResultSegment GetEndSegment(Row Row, Span currentSpan,
int StartPos)
{
//this row has no text , just bail out...
//VVV
//if (StartPos >= Row.Text.Length || currentSpan.Scope == null)
if (StartPos > Row.Text.Length || currentSpan.Scope == null)
{
return(new ScanResultSegment());
}
var Result = new ScanResultSegment {
HasContent = false, IsEndSegment = false
};
//--------------------------------------------------------------------------------
//scan for childblocks
//scan each scope in each childblock
Span seg = currentSpan;
while (seg != null)
{
if (seg == currentSpan || seg.spanDefinition.TerminateChildren)
{
foreach (Pattern end in seg.Scope.EndPatterns)
{
PatternScanResult psr = end.IndexIn(Row.Text, StartPos,
seg.Scope.CaseSensitive, Separators);
int CurrentPosition = psr.Index;
//if (psr.Token != "")
if ((end.IsComplex && psr.Index >= 0) || (!end.IsComplex && !string.IsNullOrEmpty(psr.Token))) //VVV - allow empty match for complex (regex) end
{
//if ((psr.Index < Result.Position && Result.HasContent) ||
// !Result.HasContent)
if (!Result.HasContent || psr.Index < Result.Position)
{
//we found a better match
//store this new match
Result.Pattern = end;
Result.Position = CurrentPosition;
Result.Token = psr.Token;
Result.HasContent = true;
Result.span = seg;
Result.Scope = null;
if (!end.IsComplex)
{
if (seg.Scope.NormalizeCase)
{
if (!seg.Scope.Start.IsComplex)
{
Result.Token = end.StringPattern;
}
}
}
}
}
}
}
seg = seg.Parent;
}
//no result , return new ScanResultSegment();
if (!Result.HasContent)
{
return(new ScanResultSegment());
}
return(Result);
}
private void InternalParseLine(int index, bool ParseKeywords)
{
if (mSyntaxDefinition == null)
{
return;
}
//
// if (ParseKeywords)
// return;
// ParseKeywords=true;
SyntaxDocument doc = Document;
Row Row = doc[index];
Span oldEndSpan = Row.endSpan;
Span oldStartSpan = Row.startSpan;
bool Fold = !Row.IsCollapsed;
if (Row.IsCollapsedEndPart)
{
//Row.expansion_EndSpan.Expanded = true;
//Row.expansion_EndSpan.EndRow = null;
Row.expansion_EndSpan.EndWord = null;
}
//set startsegment for this row
if (index > 0)
{
Row.startSpan = Document[index - 1].endSpan;
}
else
{
if (Row.startSpan == null)
{
Row.startSpan = new Span(Row)
{
spanDefinition = mSyntaxDefinition.mainSpanDefinition
};
}
}
int CurrentPosition = 0;
Span currentSpan = Row.startSpan;
//kör tills vi kommit till slutet av raden..
Row.endSpans.Clear();
Row.startSpans.Clear();
Row.Clear();
// bool HasEndSegment=false;
while (true)
{
ScanResultSegment ChildSegment = GetNextChildSegment(Row,
currentSpan, CurrentPosition);
ScanResultSegment EndSegment = GetEndSegment(Row, currentSpan,
CurrentPosition);
if ((EndSegment.HasContent && ChildSegment.HasContent &&
EndSegment.Position <= ChildSegment.Position) ||
(EndSegment.HasContent && ChildSegment.HasContent == false))
{
//this is an end span
if (ParseKeywords)
{
string Text = Row.Text.Substring(CurrentPosition,
EndSegment.Position - CurrentPosition);
ParseText(Row, currentSpan, Text);
}
Span oldseg = currentSpan;
while (currentSpan != EndSegment.span)
{
Row.endSpans.Add(currentSpan);
currentSpan = currentSpan.Parent;
}
Row.endSpans.Add(currentSpan);
TextStyle st2 = currentSpan.Scope.Style;
ParseTools.AddPatternString(EndSegment.Token, Row, EndSegment.Pattern,
st2, currentSpan, false);
while (oldseg != EndSegment.span)
{
oldseg.EndRow = Row;
oldseg.EndWord = Row[Row.Count - 1];
oldseg = oldseg.Parent;
}
currentSpan.EndRow = Row;
currentSpan.EndWord = Row[Row.Count - 1];
if (currentSpan.Parent != null)
{
currentSpan = currentSpan.Parent;
}
CurrentPosition = EndSegment.Position + EndSegment.Token.Length;
}
else if (ChildSegment.HasContent)
{
//this is a child block
if (ParseKeywords)
{
string Text = Row.Text.Substring(CurrentPosition,
ChildSegment.Position - CurrentPosition);
//TextStyle st=currentSpan.spanDefinition.Style;
ParseText(Row, currentSpan, Text);
//ParseTools.AddString (Text,Row,st,currentSpan);
}
var NewSeg = new Span
{
Parent = currentSpan,
spanDefinition = ChildSegment.spanDefinition,
Scope = ChildSegment.Scope
};
Row.startSpans.Add(NewSeg);
TextStyle st2 = NewSeg.Scope.Style;
ParseTools.AddPatternString(ChildSegment.Token, Row,
ChildSegment.Pattern, st2, NewSeg, false);
NewSeg.StartRow = Row;
NewSeg.StartWord = Row[Row.Count - 1];
currentSpan = NewSeg;
CurrentPosition = ChildSegment.Position + ChildSegment.Token.Length;
if (ChildSegment.Scope.spawnSpanOnStart != null)
{
var SpawnSeg = new Span
{
Parent = NewSeg,
spanDefinition = ChildSegment.Scope.spawnSpanOnStart,
Scope = new Scope(),
StartWord = NewSeg.StartWord
};
Row.startSpans.Add(SpawnSeg);
currentSpan = SpawnSeg;
}
}
else
{
if (CurrentPosition < Row.Text.Length)
{
if (ParseKeywords)
{
//we did not find a childblock nor an endblock , just output the last pice of text
string Text = Row.Text.Substring(CurrentPosition);
//TextStyle st=currentSpan.spanDefinition.Style;
ParseText(Row, currentSpan, Text);
//ParseTools.AddString (Text,Row,st,currentSpan);
}
}
break;
}
}
while (!currentSpan.spanDefinition.MultiLine)
{
Row.endSpans.Add(currentSpan);
currentSpan = currentSpan.Parent;
}
Row.endSpan = currentSpan;
Row.SetExpansionSegment();
Row.RowState = ParseKeywords ? RowState.AllParsed : RowState.SpanParsed;
if (IsSameButDifferent(index, oldStartSpan))
{
MakeSame(index);
//if (!IsSameButDifferent(index))
// System.Diagnostics.Debugger.Break();
}
if (Row.CanFold)
{
Row.expansion_StartSpan.Expanded = Fold;
}
//dont flag next line as needs parsing if only parsing keywords
if (!ParseKeywords)
{
if (oldEndSpan != null)
{
if (Row.endSpan != oldEndSpan && index <= Document.Count - 2)
{
//if (Row.CanFold)
// Row.expansion_StartSpan.Expanded = true;
Document[index + 1].AddToParseQueue();
Document.NeedResetRows = true;
}
}
else if (index <= Document.Count - 2)
{
//if (Row.CanFold)
// Row.expansion_StartSpan.Expanded = true;
Document[index + 1].AddToParseQueue();
Document.NeedResetRows = true;
}
}
if (oldEndSpan != null)
{
//expand span if this line dont have an end word
if (oldEndSpan.EndWord == null)
{
oldEndSpan.Expanded = true;
}
}
}