// Token: 0x0600308A RID: 12426 RVA: 0x000B9BF8 File Offset: 0x000B7DF8
internal static int LastIndexOfStringOrdinalIgnoreCase(string source, string value, int startIndex, int count)
{
if (value.Length == 0)
{
return(startIndex);
}
int result = -1;
if (TextInfo.TryFastFindStringOrdinalIgnoreCase(8388608, source, startIndex, value, count, ref result))
{
return(result);
}
int num = startIndex - count + 1;
if (value.Length > 0)
{
startIndex -= value.Length - 1;
}
while (startIndex >= num)
{
if (TextInfo.CompareOrdinalIgnoreCaseEx(source, startIndex, value, 0, value.Length, value.Length) == 0)
{
return(startIndex);
}
startIndex--;
}
return(-1);
}
internal static int LastIndexOfStringOrdinalIgnoreCase(string source, string value, int startIndex, int count)
{
if (value.Length == 0)
{
return(startIndex);
}
int foundIndex = -1;
if (TextInfo.TryFastFindStringOrdinalIgnoreCase(8388608, source, startIndex, value, count, ref foundIndex))
{
return(foundIndex);
}
int num = startIndex - count + 1;
if (value.Length > 0)
{
startIndex -= value.Length - 1;
}
for (; startIndex >= num; --startIndex)
{
if (TextInfo.CompareOrdinalIgnoreCaseEx(source, startIndex, value, 0, value.Length, value.Length) == 0)
{
return(startIndex);
}
}
return(-1);
}
// Token: 0x06003089 RID: 12425 RVA: 0x000B9B90 File Offset: 0x000B7D90
internal static int IndexOfStringOrdinalIgnoreCase(string source, string value, int startIndex, int count)
{
if (source.Length == 0 && value.Length == 0)
{
return(0);
}
int result = -1;
if (TextInfo.TryFastFindStringOrdinalIgnoreCase(4194304, source, startIndex, value, count, ref result))
{
return(result);
}
int num = startIndex + count;
int num2 = num - value.Length;
while (startIndex <= num2)
{
if (TextInfo.CompareOrdinalIgnoreCaseEx(source, startIndex, value, 0, value.Length, value.Length) == 0)
{
return(startIndex);
}
startIndex++;
}
return(-1);
}
internal static int IndexOfStringOrdinalIgnoreCase(string source, string value, int startIndex, int count)
{
if (source.Length == 0 && value.Length == 0)
{
return(0);
}
int foundIndex = -1;
if (TextInfo.TryFastFindStringOrdinalIgnoreCase(4194304, source, startIndex, value, count, ref foundIndex))
{
return(foundIndex);
}
for (int index = startIndex + count - value.Length; startIndex <= index; ++startIndex)
{
if (TextInfo.CompareOrdinalIgnoreCaseEx(source, startIndex, value, 0, value.Length, value.Length) == 0)
{
return(startIndex);
}
}
return(-1);
}