public static bool Insert(ref NativeString A, int position, NativeString insertion)
{
EnforceNullTermination(ref A);
RemoveNullTermination(ref insertion);
bool success = true;
if (position >= 0 && position < A.Length)
{
NativeString temp = new NativeString(A.Length - position, Allocator.Temp);
temp.ResizeUninitialized(A.Length - position);
for (int i = 0; i < temp.Length; i++)
{
temp[i] = A[position + i];
}
OverWrite(ref A, position, insertion);
OverWrite(ref A, position + insertion.Length, temp);
EnforceNullTermination(ref A);
}
else
{
success = false;
}
return(success);
}
public static int GetHashCode(NativeString A)
{
int[] charArray = A.ToArray();
string stringToHash = charArray.ToString();
int hash = stringToHash.GetHashCode();
return(hash);
}
public static void RemoveNullTermination(ref NativeString A)
{
if (A[A.Length - 1].Equals('\0'))
{
A.ResizeUninitialized(A.Length - 1);
}
return;
}
public static void EnforceNullTermination(ref NativeString A)
{
if (!A[A.Length - 1].Equals('\0'))
{
A.Add('\0');
}
return;
}
public static int ContainsAtORBefore(NativeString A, int position, NativeString subString)
{
int pos = -1;
for (int i = 0; i < A.Length && i <= position && pos == -1; i++)
{
pos = ContainsAt(A, i, subString);
}
return(pos);
}
public static int Contains(NativeString A, NativeString subString)
{
int pos = -1;
for (int i = 0; i < A.Length && pos == -1; i++)
{
pos = ContainsAt(A, i, subString);
}
return(pos);
}
public static void OverWrite(ref NativeString A, int position, NativeString stamp)
{
if ((position + stamp.Length) > A.Length)
{
A.ResizeUninitialized(position + stamp.Length);
}
for (int i = 0; i < stamp.Length; i++)
{
A[position + i] = stamp[i];
}
}
private void Start()
{
NativeString t1 = (NativeString)"Hello";
t1.Add(' ');
NativeString t2 = (NativeString)"World";
t1 = t1 + t2;
t2.Dispose();
t1.Add('!');
Debug.Log(t1);
t1.Dispose();
}
public static bool Replace(ref NativeString A, NativeString oldString, NativeString replacement)
{
EnforceNullTermination(ref A);
RemoveNullTermination(ref oldString);
RemoveNullTermination(ref replacement);
int pos = Contains(A, oldString);
if (pos != -1)
{
ReplaceAt(ref A, pos, oldString, replacement, false);
}
return(pos != -1);
}
public static int ContainsAt(NativeString A, int position, NativeString subString)
{
int pos = -1;
if (!((subString.Length + position) > A.Length))
{
for (int j = 0; j < subString.Length && A[position + j].Equals(subString[j]); j++)
{
if (j == (subString.Length - 1))
{
pos = position;
}
}
}
return(pos);
}
public static bool ReplaceAt(ref NativeString A, int positon, NativeString oldString, NativeString replacement, bool checkForOldString = true)
{
EnforceNullTermination(ref A);
RemoveNullTermination(ref oldString);
RemoveNullTermination(ref replacement);
int pos;
if (checkForOldString == true)
{
pos = ContainsAt(A, positon, oldString);
}
else
{
pos = positon;
}
if (pos != -1)
{
NativeString temp = new NativeString(A.Length - (pos + oldString.Length), Allocator.Temp);
temp.ResizeUninitialized(A.Length - (pos + oldString.Length));
int tempPos = pos + oldString.Length;
for (int i = 0; i < temp.Length; i++)
{
temp[i] = A[tempPos];
tempPos++;
}
OverWrite(ref A, pos, replacement);
OverWrite(ref A, pos + replacement.Length, temp);
EnforceNullTermination(ref A);
}
return(pos != -1);
}
public static bool Equals(NativeString A, NativeString B)
{
return(A == B);
}
public NativeStringDebugView(NativeString array)
{
m_Array = array;
}
/// <summary>
/// This function takes a copy of native list A and appends/concatanates B to the end of it.
/// </summary>
/// <param name="A"></param>
/// <param name="B"></param>
/// <returns></returns>
public NativeString Concatenate(NativeString A, NativeString B)
{
return(A + B);
}
public static bool IsNullTerminated(NativeString A)
{
return(A[A.Length - 1] == '\0' ? true:false);
}
