public Variable(string src, int start, EquationElement root)
{
var varname = GetVarName(src, start, root);
Name = varname;
if (varname.Length > 0)
m_sb.Append(varname);
}
private bool AddUpdate(GeoArea geoArea, EquationYear equationYear, string userId, string[] elementValuesKeys)
{
var calculate = true;
string values = "";
var elementIds = new List <int>();
foreach (string evs in elementValuesKeys)
{
string eeId = evs.Replace("ElementValue_", "");
EquationElement equationElement = db.EquationElements.Find(int.Parse(eeId));
if (equationElement == null)
{
throw new Exception("Equation Element Not Found");
}
string strValue = Request[evs].Trim();
double _fValue = 0;
double?fValue = null;
if (string.IsNullOrEmpty(strValue) || double.TryParse(strValue, out _fValue))
{
if (!string.IsNullOrEmpty(strValue))
{
fValue = _fValue;
}
else
{
calculate = false;
}
values += string.Format("{0} : {1}\r\n", equationElement.Element.Name, strValue);
var createdAt = DateTime.Now;
var elementValue = new ElementValue()
{
EquationElementID = equationElement.ID,
EquationYearID = equationYear.ID,
GeoAreaID = geoArea.ID,
Value = fValue,
ApplicationUserID = userId,
CreatedAt = createdAt,
};
db.ElementValues.Add(elementValue);
elementIds.Add(equationElement.ElementID);
}
else
{
throw new Exception("Value is in correct");
}
}
if (calculate)
{
var elementYearValues = db.ElementYearValues.Where(x => x.GeoAreaID == geoArea.ID && x.Year == equationYear.Year && elementIds.Contains(x.ElementID)).ToList();
foreach (var eyv in elementYearValues)
{
eyv.IsCommited = true;
db.Entry(eyv).State = EntityState.Modified;
}
}
return(calculate);
}
private string GetElementValue(EquationElement ee, int geoAreaID, int year)
{
var value = ee.ElementValues.Where(x => x.GeoAreaID == geoAreaID && x.EquationYear.Year == year).FirstOrDefault();
if (value == null)
{
throw new Exception(string.Format("لا يوجد قيمة للمؤشر {0} في سنة {1}", ee.Element.Name, year));
}
return(value.Value.ToString());
}
private static string GetVarName(string equation, int index, EquationElement root)
{
var varname = Term.ExtractName(equation, index).ToLower();
if (root != null && root.VarExist(varname))
return varname;
var ch = equation[index];
if (ch >= 'a' && ch <= 'z')
return new string(new[] {ch});
if (ch >= 'A' && ch <= 'Z')
return new string(new[] {ch});
return string.Empty;
}
static bool ShouldPopOperatorToQueue(EquationElement to, EquationElement so)
{
if (so is LeftBracketSymbol)
{
return(false);
}
if (so is OperatorBase)
{
if (so is EquationFunction)
{
return(true);
}
if (((OperatorBase)so).Precedence > ((OperatorBase)to).Precedence)
{
return(true);
}
if (((OperatorBase)so).Precedence == ((OperatorBase)to).Precedence &&
((OperatorBase)so).Associativity == OperatorBase.OperatorAssociativity.Left)
{
return(true);
}
}
return(false);
}
public bool IsValid(string equation, int index, EquationElement root)
=> GetVarName(equation, index, root).Length > 0;
