static int LastIndexOf(SubsetStringView source, StringView other, StringComparison sc)
{
if (source.length < other.length)
{
return(-1);
}
int otherIndex = other.length - 1;
for (var i = source.length - 1; i >= 0 && otherIndex >= 0; --i)
{
if (!StringView.Compare(source[i], other[otherIndex], sc))
{
otherIndex = other.length - 1;
}
else
{
if (otherIndex == 0)
{
return(i);
}
otherIndex--;
}
}
return(-1);
}
public static bool IsNullOrEmpty(this SubsetStringView sv)
{
if (!sv.valid)
{
return(true);
}
return(sv.length == 0);
}
public static bool IsNullOrWhiteSpace(this SubsetStringView sv)
{
if (sv.IsNullOrEmpty())
{
return(true);
}
for (var i = 0; i < sv.length; ++i)
{
if (!char.IsWhiteSpace(sv[i]))
{
return(false);
}
}
return(true);
}
public bool Equals(SubsetStringView other, StringComparison comparisonOptions = StringComparison.OrdinalIgnoreCase)
{
if (other.length != length)
{
return(false);
}
for (var i = 0; i < length; ++i)
{
if (!StringView.Compare(this[i], other[i], comparisonOptions))
{
return(false);
}
}
return(true);
}
static int LastIndexOf(SubsetStringView source, char other, StringComparison sc)
{
if (!source.valid)
{
return(-1);
}
for (var i = source.length - 1; i >= 0; --i)
{
if (StringView.Compare(source[i], other, sc))
{
return(i);
}
}
return(-1);
}
static int IndexOf(SubsetStringView source, char other, StringComparison sc)
{
if (!source.valid)
{
return(-1);
}
for (var i = 0; i < source.Length; ++i)
{
if (StringView.Compare(source[i], other, sc))
{
return(i);
}
}
return(-1);
}
static int IndexOf(SubsetStringView source, StringView other, StringComparison sc)
{
if (!source.valid || !other.valid)
{
return(-1);
}
if (source.length < other.length)
{
return(-1);
}
int foundStartIndex = -1;
int otherIndex = 0;
for (var i = 0; i < source.length && otherIndex < other.length; ++i)
{
if (!StringView.Compare(source[i], other[otherIndex], sc))
{
if (foundStartIndex > -1)
{
foundStartIndex = -1;
otherIndex = 0;
}
}
else
{
if (foundStartIndex == -1)
{
foundStartIndex = i;
}
otherIndex++;
}
}
if (otherIndex != other.length)
{
return(-1);
}
return(foundStartIndex);
}
public bool Contains(SubsetStringView s, StringComparison ordinal = StringComparison.Ordinal)
{
return(IndexOf(s) != -1);
}
public int LastIndexOf(SubsetStringView other, StringComparison sc = StringComparison.Ordinal)
{
return(LastIndexOf(this, other, sc));
}
