private bool needsEmptyVersion(ContextPair contextPair)
{
UnitContext leftContext = contextPair.getLeftContext();
Unit[] units = leftContext.getUnits();
return(units.Length > 0 && this.getRightContextSize(units[0]) < this.getRightContextSize());
}
internal virtual UnitContext generateNextLeftContext(UnitContext unitContext, Unit unit)
{
Unit[] units = unitContext.getUnits();
int num = Math.min(units.Length, this.getLeftContextSize());
if (num == 0)
{
return(UnitContext.EMPTY);
}
Unit[] array = (Unit[])Arrays.copyOfRange(units, 1, num + 1);
array[num - 1] = unit;
return(UnitContext.get(array));
}
private Unit[] getRC(Unit[] array, int num, UnitContext unitContext)
{
Unit[] units = unitContext.getUnits();
int num2 = num + 1;
int num3 = array.Length - num2 + units.Length;
int num4 = Math.min(num3, this.getRightContextSize(array[num]));
Unit[] array2 = new Unit[num4];
for (int i = 0; i < array2.Length; i++)
{
int num5 = num2 + i;
if (num5 < array.Length)
{
array2[i] = array[num5];
}
else
{
array2[i] = units[num5 - array.Length];
}
}
return(array2);
}
private Unit[] getLC(UnitContext unitContext, Unit[] array, int num)
{
Unit[] units = unitContext.getUnits();
int num2 = units.Length + num;
int num3 = Math.min(num2, this.getLeftContextSize(array[num]));
int num4 = num - num3;
Unit[] array2 = new Unit[num3];
for (int i = 0; i < array2.Length; i++)
{
int num5 = num4 + i;
if (num5 < 0)
{
array2[i] = units[units.Length + num5];
}
else
{
array2[i] = array[num5];
}
}
return(array2);
}