/// <summary>
/// Interprets a properly formatted string to create a chemical equation.
/// </summary>
/// <param name="equation">The equation to interpret.</param>
/// <returns>A chemical equation.</returns>
private void InterpretEquation(string equation)
{
var chemical_equation = new ChemicalEquation();
var molecules = Regex.Matches(equation, @"([^+>\-\s]{1,}){1,}");
var arrow_separator = Regex.Matches(equation, @"[-]{2}[>]{1}");
var elements = Regex.Matches(equation, @"[A-Z]{1}[a-z]{0,2}");
var subscripts = Regex.Matches(equation, @"\b\d{1,}\b");
if (elements.Count == subscripts.Count)
{
if (arrow_separator.Count == 0) // Only reactants present
{
var reactants = new List <Tuple <Molecule, int> >();
foreach (Match molecule in molecules)
{
reactants.Add(new Tuple <Molecule, int>(CreateMolecule(molecule.Value), 1));
}
Reactants = reactants;
}
else if (arrow_separator.Count == 1) // Reactants and produts present
{
var reactants = new List <Tuple <Molecule, int> >();
var products = new List <Tuple <Molecule, int> >();
for (var i = 0; i < molecules.Count; ++i)
{
// Reactants
if (molecules[i].Index < arrow_separator[0].Index)
{
reactants.Add(Tuple.Create(CreateMolecule(molecules[i].Value), 1));
}
else // Products
{
products.Add(Tuple.Create(CreateMolecule(molecules[i].Value), 1));
}
}
Reactants = reactants;
Products = products;
}
}
}
private List <Tuple <Tuple <Molecule, int>, string> > CreateConversionInfo(ChemicalEquation equation)
{
List <Tuple <Tuple <Molecule, int>, string> > header = null;
if (equation.IsBalanced())
{
header = new List <Tuple <Tuple <Molecule, int>, string> >();
var combined = equation.Reactants.Concat(equation.Products);
foreach (var molecule in combined)
{
header.Add(Tuple.Create(molecule, "mass"));
header.Add(Tuple.Create(molecule, "moles"));
header.Add(Tuple.Create(molecule, "particles"));
}
}
return(header);
}
public void CreateConversionTable(ChemicalEquation equation)
{
var tableData = new List <List <string> >();
if (equation.IsBalanced())
{
var conversionInfo = CreateConversionInfo(equation);
var columnHeader = conversionInfo.Select(molecule => $"{molecule.Item1.Item2}{molecule.Item1.Item1.ToString()} {molecule.Item2}").ToList();
tableData.Add(columnHeader);
// Adds the conversion type of the table.
tableData[0].Insert(0, equation.ToString());
for (var rowIndex = 1; rowIndex < columnHeader.Count; ++rowIndex)
{
var rowHeader = columnHeader[rowIndex];
if (tableData.Count == rowIndex)
{
tableData.Add(new List <string>());
tableData[rowIndex].Add(rowHeader);
tableData[rowIndex].AddRange(new string[rowIndex - 1]);
}
for (var colIndex = rowIndex; colIndex < columnHeader.Count; ++colIndex)
{
var canceledUnit = conversionInfo[rowIndex - 1];
var remainingUnit = conversionInfo[colIndex - 1];
var conversionScalar = CreateConversionScalar(canceledUnit, remainingUnit);
tableData[rowIndex].Add(conversionScalar.ToString());
}
}
UnitConverter.ConversionTable = UnitConverter.CreateConversionTable(tableData).Transpose();
}
}
