// Token: 0x060039B3 RID: 14771 RVA: 0x00105B0C File Offset: 0x00103D0C
internal static TextRange InternalFind(ITextPointer startPosition, ITextPointer endPosition, string findPattern, CultureInfo cultureInfo, bool matchCase, bool matchWholeWord, bool matchLast, bool matchDiacritics, bool matchKashida, bool matchAlefHamza)
{
Invariant.Assert(startPosition.CompareTo(endPosition) <= 0);
ITextPointer textPointer;
LogicalDirection direction;
if (matchLast)
{
textPointer = endPosition;
direction = LogicalDirection.Backward;
}
else
{
textPointer = startPosition;
direction = LogicalDirection.Forward;
}
int num = Math.Max(64, findPattern.Length * 2 * 2);
textPointer = textPointer.CreatePointer();
while ((matchLast ? startPosition.CompareTo(textPointer) : textPointer.CompareTo(endPosition)) < 0)
{
ITextPointer textPointer2 = textPointer.CreatePointer();
char[] array = new char[num];
int[] array2 = new int[num + 1];
int num2 = TextFindEngine.SetFindTextAndFindTextPositionMap(startPosition, endPosition, textPointer, direction, matchLast, array, array2);
if (!matchDiacritics || num2 >= findPattern.Length)
{
int num3 = matchLast ? (array.Length - num2) : 0;
bool hasPreceedingSeparatorChar = false;
bool hasFollowingSeparatorChar = false;
if (matchWholeWord)
{
TextFindEngine.GetContextualInformation(textPointer2, matchLast ? (-array2[array2.Length - num2 - 1]) : array2[num2], out hasPreceedingSeparatorChar, out hasFollowingSeparatorChar);
}
string textString = new string(array, num3, num2);
int num5;
int num4 = TextFindEngine.FindMatchIndexFromFindContent(textString, findPattern, cultureInfo, matchCase, matchWholeWord, matchLast, matchDiacritics, matchKashida, matchAlefHamza, hasPreceedingSeparatorChar, hasFollowingSeparatorChar, out num5);
if (num4 != -1)
{
ITextPointer textPointer3 = textPointer2.CreatePointer();
textPointer3.MoveByOffset(matchLast ? (-array2[num3 + num4]) : array2[num4]);
ITextPointer textPointer4 = textPointer2.CreatePointer();
textPointer4.MoveByOffset(matchLast ? (-array2[num3 + num4 + num5]) : array2[num4 + num5]);
return(new TextRange(textPointer3, textPointer4));
}
if (num2 > findPattern.Length)
{
textPointer = textPointer2.CreatePointer();
textPointer.MoveByOffset(matchLast ? (-array2[array.Length - num2 + findPattern.Length]) : array2[num2 - findPattern.Length]);
}
}
}
return(null);
}
// Token: 0x060039B5 RID: 14773 RVA: 0x00105CE8 File Offset: 0x00103EE8
private static bool HasNeighboringSeparatorChar(ITextPointer position, LogicalDirection direction)
{
ITextPointer textPointer = position.GetNextInsertionPosition(direction);
if (textPointer == null)
{
return(true);
}
if (position.CompareTo(textPointer) > 0)
{
ITextPointer textPointer2 = position;
position = textPointer;
textPointer = textPointer2;
}
int offsetToPosition = position.GetOffsetToPosition(textPointer);
char[] array = new char[offsetToPosition];
int[] findTextPositionMap = new int[offsetToPosition + 1];
int num = TextFindEngine.SetFindTextAndFindTextPositionMap(position, textPointer, position.CreatePointer(), LogicalDirection.Forward, false, array, findTextPositionMap);
if (num == 0)
{
return(true);
}
bool result;
if (direction == LogicalDirection.Forward)
{
result = TextFindEngine.IsSeparatorChar(array[0]);
}
else
{
result = TextFindEngine.IsSeparatorChar(array[num - 1]);
}
return(result);
}