protected internal void replace0(int start, int end, String s)
{
if (start >= 0)
{
if (end > count)
{
end = count;
}
if (end > start)
{
int stringLength = s.length();
int diff = end - start - stringLength;
if (diff > 0) // replacing with fewer characters
{
if (!shared)
{
// index == count case is no-op
java.lang.SystemJ.arraycopy(value, end, value, start
+ stringLength, count - end);
}
else
{
char[] newData = new char[value.Length];
java.lang.SystemJ.arraycopy(value, 0, newData, 0, start);
// index == count case is no-op
java.lang.SystemJ.arraycopy(value, end, newData, start
+ stringLength, count - end);
value = newData;
shared = false;
}
}
else if (diff < 0)
{
// replacing with more characters...need some room
move(-diff, end);
}
else if (shared)
{
char[] clone = new char[value.Length];
SystemJ.arraycopy(value, 0, clone, 0, value.Length);
value = clone;
shared = false;
}
s.getChars(0, stringLength, value, start);
count -= diff;
return;
}
if (start == end)
{
if (s == null)
{
throw new java.lang.NullPointerException();
}
insert0(start, s);
return;
}
}
throw new StringIndexOutOfBoundsException();
}
/**
* Sets the character at the {@code index}.
*
* @param index
* the zero-based index of the character to replace.
* @param ch
* the character to set.
* @throws IndexOutOfBoundsException
* if {@code index} is negative or greater than or equal to the
* current {@link #length()}.
*/
public virtual void setCharAt(int index, char ch)
{
if (0 > index || index >= count)
{
throw new StringIndexOutOfBoundsException(index);
}
if (shared)
{
char[] clone = new char[value.Length];
SystemJ.arraycopy(value, 0, clone, 0, value.Length);
value = clone;
shared = false;
}
value[index] = ch;
}
public void getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin)
{
if (srcBegin < 0)
{
throw new StringIndexOutOfBoundsException(srcBegin);
}
if (srcEnd > this.delegateInstance.Length)
{
throw new StringIndexOutOfBoundsException(srcEnd);
}
if (srcBegin > srcEnd)
{
throw new StringIndexOutOfBoundsException(srcEnd - srcBegin);
}
SystemJ.arraycopy(this.delegateInstance.ToCharArray(), 0 + srcBegin, dst, dstBegin,
srcEnd - srcBegin);
}