/// <summary>
/// This is testing if given string is somewhere in the location's texts
/// </summary>
/// <param name="subString"></param>
/// <returns>returns code of field, where substring was found.
/// Zero (0) means substring was not found.
/// 1 : string was found at the start of Name or AlternativeName
/// 2 : string was found within Name
/// 3 : string was found within Alternative Name</returns>
public int ContainsSubstring(string subString)
{
if (CityName.StartsWith(subString, StringComparison.CurrentCultureIgnoreCase) ||
(ASCIIName != null && ASCIIName.StartsWith(subString, StringComparison.CurrentCultureIgnoreCase)))
{
return(1);
}
if (CityName.IndexOf(subString, 0, StringComparison.CurrentCultureIgnoreCase) >= 0 ||
(ASCIIName != null && ASCIIName.IndexOf(subString, 0, StringComparison.CurrentCultureIgnoreCase) >= 0))
{
return(2);
}
int index = AlternativeNames.IndexOf(subString, 0, StringComparison.CurrentCultureIgnoreCase);
if (index > 0)
{
return((AlternativeNames[index - 1] == ',') ? 1 : 3);
}
else if (index == 0)
{
return(1);
}
else
{
return(0);
}
}