public static TextIndexList FromBitArray(BitArray bits, TextIndex index)
{
string bitString = BitArrayString(bits);
TextIndexList tl = new TextIndexList();
int currentStart = -1;
int lastBit = Math.Min(index.Start + index.Length, bits.Length);
for (int i = index.Start; i < lastBit; i++)
{
if (bits[i])
{
if (currentStart == -1)
{
currentStart = i;
}
}
else
{
if (currentStart != -1)
{
tl.Add(TextIndex.FromStartEnd(currentStart, i));
currentStart = -1;
}
}
}
if (currentStart != -1)
{
tl.Add(TextIndex.FromStartEnd(currentStart, index.End));
}
return(tl);
}
/// <summary>
/// Merges TextIndexes and sorts the textindexes
/// </summary>
public void Simplify()
{
BitArray ba = this.ToBitArray();
TextIndexList til = TextIndexList.FromBitArray(ba);
this.Clear();
this.AddRange(til);
}
public TextIndexList Clone()
{
TextIndexList tl = new TextIndexList();
foreach (TextIndex t in this)
{
tl.Add(new TextIndex(t.Start, t.Length));
}
return(tl);
}
public TextIndexList SubtractedFrom(TextIndexList tl)
{
int arraySize = Math.Max(this.Bounds.End, tl.Bounds.End);
BitArray bArray = this.ToBitArray(arraySize);
BitArray btlArray = tl.ToBitArray(arraySize);
BitArray bXor = bArray.Xor(btlArray);
return(TextIndexList.FromBitArray(btlArray.And(bXor)));
}
public TextIndexList SymetricDifference(TextIndexList tl)
{
int arraySize = Math.Max(this.Bounds.End, tl.Bounds.End);
BitArray bArray = this.ToBitArray(arraySize);
BitArray btlArray = tl.ToBitArray(arraySize);
BitArray bResult = bArray.Xor(btlArray);
return(TextIndexList.FromBitArray(bResult));
}
public TextIndexList Intersection(TextIndexList tl)
{
int arraySize = Math.Max(this.Bounds.End, tl.Bounds.End);
BitArray bArray = this.ToBitArray(arraySize);
BitArray btlArray = tl.ToBitArray(arraySize);
BitArray bResult = bArray.And(btlArray);
return(TextIndexList.FromBitArray(bResult));
}
public static TextIndexList Parse(string value)
{
TextIndexList tl = new TextIndexList();
string[] strTextIndexes = value.Split(new string[1] {
":"
}, StringSplitOptions.RemoveEmptyEntries);
foreach (string strTextIndex in strTextIndexes)
{
string[] strSplit = strTextIndex.Split(new string[1] {
","
}, StringSplitOptions.RemoveEmptyEntries);
if (strSplit.Length != 2)
{
throw new Exception("Bad format");
}
else
{
tl.Add(new TextIndex(Int32.Parse(strSplit[0]), Int32.Parse(strSplit[1])));
}
}
return(tl);
}
public TextIndex RangeDifferentFrom(TextIndexList tl)
{
TextIndexList diff = this.SymetricDifference(tl);
return(diff.Bounds);
}
