protected bool EvaluateForRange(string expression, ParseDelegate parse)
{
expression = expression.Trim();
Regex regex = new Regex(@"(?<min>[^:]+):(?<max>.+)");
Match match = regex.Match(expression);
if (!match.Success)
{
return(false);
}
method = Method.RANGE;
choices = new T[2];
try {
choices[0] = parse.Invoke(match.Groups["min"].Value);
} catch (Exception e) {
throw new Exception($"DynamicValue could not parse '{match.Groups["min"].Value}' in EvaluateForRange: {e}");
}
try {
choices[0] = parse.Invoke(match.Groups["max"].Value);
} catch (Exception e) {
throw new Exception($"DynamicValue could not parse '{match.Groups["max"].Value}' in EvaluateForRange: {e}");
}
return(true);
}
protected bool EvaluateForChoice(string expression, ParseDelegate parse)
{
expression = expression.Trim();
if (!Regex.IsMatch(expression, @"^\[[^\]]+\]$"))
{
return(false);
}
method = Method.CHOICE;
Regex regex = new Regex(@"\s*([^,\[\]]+),*");
MatchCollection matches = regex.Matches(expression);
choices = new T[matches.Count];
for (int i = 0; i < matches.Count; i++)
{
try {
choices[i] = parse.Invoke(matches[i].Groups[1].Value);
} catch (Exception e) {
throw new Exception($"DynamicValue could not parse '{matches[i].Groups[1].Value}' in EvaluateForChoice: {e}");
}
}
return(true);
}
/// <summary>
/// Execute parsing method checking research deep.
/// </summary>
private static bool Parse(ParseDelegate action, SyntacticState state, SyntacticItem[] args)
{
state.Deep++;
#if DEBUG
Debug.WriteLine(String.Empty);
Debug.WriteLine(state.GetOuterDebug());
SyntacticItem debugItem = (SyntacticItem)action.Target;
Debug.WriteLine("[{0}] ({1})", debugItem.Key, state.Deep);
string debugMethod = action.Method.Name;
debugMethod = debugMethod
.Split(
new[] { "Parse", "Internal", "<", ">" },
StringSplitOptions.RemoveEmptyEntries)
.First()
.ToUpperInvariant();
Debug.Write(debugMethod);
Debug.Write(" =");
foreach (var arg in args.Where(arg => arg != null))
{
Debug.Write(" | ");
Debug.Write(arg.Key);
}
Debug.WriteLine(String.Empty);
#endif
if (state.Deep >= c_maxResearchDeep)
{
throw new InvalidOperationException(
String.Format("Maximum research deep {0} has been reached.", c_maxResearchDeep));
}
bool parsed = action.Invoke(state, args);
state.Deep--;
return(parsed);
}
/// <summary>
/// Execute parsing method checking research deep.
/// </summary>
private static bool Parse(ParseDelegate action, SyntacticState state, SyntacticItem[] args)
{
state.Deep++;
#if DEBUG
Debug.WriteLine(String.Empty);
Debug.WriteLine(state.GetOuterDebug());
SyntacticItem debugItem = (SyntacticItem)action.Target;
Debug.WriteLine("[{0}] ({1})", debugItem.Key, state.Deep);
string debugMethod = action.Method.Name;
debugMethod = debugMethod
.Split(
new[] { "Parse", "Internal", "<", ">" },
StringSplitOptions.RemoveEmptyEntries)
.First()
.ToUpperInvariant();
Debug.Write(debugMethod);
Debug.Write(" =");
foreach (var arg in args.Where(arg => arg != null))
{
Debug.Write(" | ");
Debug.Write(arg.Key);
}
Debug.WriteLine(String.Empty);
#endif
if (state.Deep >= c_maxResearchDeep)
throw new InvalidOperationException(
String.Format("Maximum research deep {0} has been reached.", c_maxResearchDeep));
bool parsed = action.Invoke(state, args);
state.Deep--;
return parsed;
}