public string GetString(PlanningParser.TermContext context, StringDictionary assignment)
{
string result;
if (context.NAME() != null)
{
string name = context.NAME().GetText();
result = _constTypeDict.ContainsKey(name) ? name : _numericConstValueDict[name].ToString();
}
else if (context.VAR() != null)
{
string variableName = context.VAR().GetText();
result = assignment[variableName];
}
else if (context.INTEGER() != null)
{
result = context.INTEGER().GetText();
}
else if (context.MINUS() != null && context.term().Count == 1)
{
string termString = GetString(context.term(0), assignment);
result = string.Format("-{0}", termString);
}
else if (context.MINUS() != null && context.term().Count == 2)
{
string firstTermString = GetString(context.term(0), assignment);
string secondTermString = GetString(context.term(1), assignment);
int firstValue = int.Parse(firstTermString);
int secondValue = int.Parse(secondTermString);
result = (firstValue - secondValue).ToString();
}
else
{
string firstTermString = GetString(context.term(0), assignment);
string secondTermString = GetString(context.term(1), assignment);
int firstValue = int.Parse(firstTermString);
int secondValue = int.Parse(secondTermString);
result = (firstValue + secondValue).ToString();
}
return(result);
}
/// <summary>
/// Exit a parse tree produced by <see cref="PlanningParser.term"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitTerm([NotNull] PlanningParser.TermContext context)
{
}
