private static List <Field> ParseField(string p)
{
string[] num = p.Split(new char[] { '-' });
if (num.Length == 1) // single field such as A R * 1 2 5
{
if (num[0].Contains("+"))
{
return(ParseAppend(num[0]));
}
else if (ParseClass.IsAllDigits(num[0]))
{
return(new List <Field>()
{
new Field(Int32.Parse(num[0]) - 1)
});
}
else if (IsValidField(num[0]))
{
return(new List <Field>()
{
new Field(num[0])
});
}
else
{
throw new Exception(String.Format("Unable to parse fields |{0}| (Expected A R * 1 2 1+2, etc)", p));
}
}
else if (num.Length == 2) // multiple such as 1-10 3-4 6-1
{
if (ParseClass.IsAllDigits(num[0]) && ParseClass.IsAllDigits(num[1]))
{
List <Field> list = new List <Field>();
int n1 = Int32.Parse(num[0]);
int n2 = Int32.Parse(num[1]);
int diff = (n1 < n2 ? 1 : -1);
for (int i = n1; i != (n2 + diff); i += diff)
{
Field f = new Field(i - 1);
list.Add(f);
}
return(list);
}
else
{
throw new Exception(String.Format("Unable to parse fields |{0}| (Expected two numbers in range?)", p));
}
}
throw new Exception(String.Format("Unable to parse fields |{0}|", p));
}
private static List <Field> ParseAppend(string p)
{
string[] num = p.Split(new char[] { '+' });
if (num.Length < 2)
{
throw new Exception(String.Format("Unable to parse the append fields |{0}| (Expected multiple fields?)", p));
}
Field app = new Field();
for (int i = 0; i < num.Length; ++i)
{
if (ParseClass.IsAllDigits(num[i]))
{
int fn = Int32.Parse(num[i]);
app.FieldNums.Add(fn - 1);
}
}
return(new List <Field>()
{
app
});
}