private RangeItemHeaderValue(RangeItemHeaderValue source)
{
this.from = source.from;
this.to = source.to;
}
internal static int GetRangeItemLength(string input, int startIndex, out RangeItemHeaderValue parsedValue)
{
parsedValue = null;
if (string.IsNullOrEmpty(input) || (startIndex >= input.Length))
{
return 0;
}
int num = startIndex;
int num2 = num;
int length = HttpRuleParser.GetNumberLength(input, num, false);
if (length > 0x13)
{
return 0;
}
num += length;
num += HttpRuleParser.GetWhitespaceLength(input, num);
if ((num == input.Length) || (input[num] != '-'))
{
return 0;
}
num++;
num += HttpRuleParser.GetWhitespaceLength(input, num);
int num4 = num;
int num5 = 0;
if (num < input.Length)
{
num5 = HttpRuleParser.GetNumberLength(input, num, false);
if (num5 > 0x13)
{
return 0;
}
num += num5;
num += HttpRuleParser.GetWhitespaceLength(input, num);
}
if ((length == 0) && (num5 == 0))
{
return 0;
}
long result = 0;
if ((length > 0) && !HeaderUtilities.TryParseInt64(input.Substring(num2, length), out result))
{
return 0;
}
long num7 = 0;
if ((num5 > 0) && !HeaderUtilities.TryParseInt64(input.Substring(num4, num5), out num7))
{
return 0;
}
if (((length > 0) && (num5 > 0)) && (result > num7))
{
return 0;
}
parsedValue = new RangeItemHeaderValue((length == 0) ? null : new long?(result), (num5 == 0) ? null : new long?(num7));
return (num - startIndex);
}
