public bool Overlaps(RangeSet other)
{
for (var i = 0; i < SetRanges.Length; i++)
{
for (var j = 0; j < other.SetRanges.Length; j++)
{
if (SetRanges[i].Contains(other.SetRanges[j].Start) || SetRanges[i].Contains(other.SetRanges[j].Stop))
{
return(true);
}
}
}
return(false);
}
public static bool TryParse(ref string error, string rangeString, out RangeSet output)
{
var tempRange = new List <Range>();
var length = rangeString.Length;
var str = rangeString.ToCharArray();
var index = 0;
var start = 0;
var end = 0;
output = null;
//Phase == 0 -> index
//Phase == 1 -> start
//Phase == 2 -> end
var phase = 0;
var lastPlus = false;
var tallyingInZero = false;
if (IsNullOrWhiteSpace(rangeString))
{
output = new RangeSet(tempRange);
return(true);
}
for (var i = 0; i < length; i++)
{
var c = str[i];
if (IsWhiteSpace(c) || IsLetter(c))
{
continue;
}
lastPlus = false;
switch (phase)
{
case 0:
if (IsNumber(c))
{
index = ((index << 3) + (index << 1)) + (c - '0');
tallyingInZero = true;
}
else
{
switch (c)
{
case ',':
tempRange.Add(new Range(index, index));
index = 0;
start = 0;
end = 0;
break;
case '-':
if (!tallyingInZero)
{
error = "No number was inserted before a range!";
return(false);
}
start = index;
end = 0;
phase = 2;
break;
case '+':
if (!tallyingInZero)
{
error = "No number was inserted before a range!";
return(false);
}
end = int.MaxValue;
tempRange.Add(new Range(start, end));
index = 0;
start = 0;
phase = 0;
tallyingInZero = false;
lastPlus = true;
break;
default:
error = "Unrecognized symbol " + c;
return(false);
}
}
break;
case 1:
if (IsNumber(c))
{
start = ((start << 3) + (start << 1)) + (c - '0');
}
else
{
switch (c)
{
case '+':
end = int.MaxValue;
tempRange.Add(new Range(start, end));
index = 0;
start = 0;
phase = 0;
tallyingInZero = false;
lastPlus = true;
break;
case '-':
end = 0;
phase = 2;
break;
}
}
break;
case 2:
if (IsNumber(c))
{
end = ((end << 3) + (end << 1)) + (c - '0');
}
else if (c == ',')
{
tempRange.Add(new Range(start, end));
index = 0;
phase = 0;
start = 0;
end = 0;
tallyingInZero = false;
}
break;
}
}
if (phase == 2)
{
tempRange.Add(new Range(start, end));
}
else if (phase == 0 && tallyingInZero)
{
tempRange.Add(new Range(index, index));
}
else if (!lastPlus)
{
error = "Ended while reading a " + (phase == 0 ? "range's index!" : "range's start value!");
return(false);
}
output = new RangeSet(tempRange);
return(true);
}
public static bool TryParse(string rangeString, out RangeSet output)
{
string error = null;
return(TryParse(ref error, rangeString, out output));
}