private bool MatchEndSequence(CharacterScanner scanner)
{
bool flag = false;
while (!scanner.IsEndOfScan)
{
char currentCharacter = scanner.CurrentCharacter;
if (this.skipString == null || flag || !scanner.MatchString(this.skipString))
{
if ((int)currentCharacter == (int)this.endSequence[0] && !flag && scanner.MatchString(this.endSequence))
{
return(true);
}
int num1;
if (this.escapeCharacter.HasValue)
{
char?nullable = this.escapeCharacter;
int num2 = (int)currentCharacter;
num1 = (int)nullable.GetValueOrDefault() != num2 ? 0 : (nullable.HasValue ? 1 : 0);
}
else
{
num1 = 0;
}
flag = num1 != 0;
scanner.MoveNext();
if (this.finishesOnEOL && (int)currentCharacter == 10)
{
return(true);
}
}
}
return(false);
}
public IList <ClassificationSpan> GetClassificationSpans(SnapshotSpan span, RuleScannerState currentState, out RuleScannerState endState)
{
CharacterScanner scanner = new CharacterScanner(span);
List <ClassificationSpan> list = new List <ClassificationSpan>();
int currentRule = currentState.CurrentRule;
RuleState endState1 = currentState.RuleState;
while (!scanner.IsEndOfScan)
{
bool flag = false;
int cursor = scanner.Cursor;
if (!endState1.IsResuming)
{
currentRule = 0;
}
for (; currentRule < this.rules.Count; ++currentRule)
{
IClassificationType classification = this.rules[currentRule].Run(scanner, endState1, out endState1);
if (classification != null)
{
list.Add(new ClassificationSpan(new SnapshotSpan(scanner.Snapshot, cursor, scanner.Cursor - cursor), classification));
flag = true;
break;
}
}
if (!flag)
{
scanner.MoveNext();
}
}
endState = new RuleScannerState(currentRule, endState1);
return((IList <ClassificationSpan>)list);
}
public IClassificationType Run(CharacterScanner scanner, RuleState startState, out RuleState endState)
{
RuleState ruleState = startState;
int cursor = scanner.Cursor;
if (!ruleState.IsResuming && !string.IsNullOrEmpty(this.startSequence))
{
if ((int)scanner.CurrentCharacter != (int)this.startSequence[0])
{
endState = new RuleState();
return((IClassificationType)null);
}
if (!scanner.MatchString(this.startSequence))
{
endState = new RuleState();
return((IClassificationType)null);
}
}
bool flag = false;
if (string.IsNullOrEmpty(this.endSequence))
{
while (!scanner.IsEndOfScan)
{
if (this.finishesOnEOL && (int)scanner.CurrentCharacter == 10)
{
flag = true;
break;
}
scanner.MoveNext();
}
}
else
{
flag = this.MatchEndSequence(scanner) || scanner.IsEndOfFile;
}
endState = new RuleState(!flag);
return(this.classification);
}