private void EvaluateQueueBody(QueryNode query)
{
if (query.DefaultQuery != null)
{
EvaluateDefaultQuery(query);
return;
}
int queryInputIndex = 0;
while (!wrongInput && tokenStack.Count > 0)
{
AnalysedToken token = tokenStack.Peek();
if (token.IsExplicitOption)
{
EvaluateOption(query);
}
else if (token.CanBeQuery && query.Queries.TryGetValue(token.NormalisedValue, out QueryNode subQuery))
{
result.Context.QueryPath.Add(subQuery.Query.Key);
EvaluateExplicitQueue(subQuery);
}
else if (queryInputIndex == 0)
{
EvaluateOptionList(query);
}
else
{
EvaluateParameters(query, result.Context.Parameters);
}
queryInputIndex++;
}
}
private void EvaluateOptionList(QueryNode query)
{
AnalysedToken token = tokenStack.Peek();
List <OptionNode> options = new List <OptionNode>();
foreach (char character in token.NormalisedValue)
{
if (character == InputConstants.PARAMETER_INPUT_PREFIX)
{
continue;
}
if (!query.OptionList.TryGetValue(character, out OptionNode option))
{
EvaluateParameters(query, result.Context.Parameters);
return;
}
options.Add(option);
}
if (options.Count < 1)
{
EvaluateParameters(query, result.Context.Parameters);
return;
}
foreach (OptionNode option in options)
{
result.Context.Options.Add(option.Option.Key, OptionContext.BuildWithoutParameters(option.Option.Key));
}
AddTokenToResult(TokenTypeEnum.OptionList, token.RawInput);
}
private void EvaluateExplicitQueue(QueryNode query)
{
AnalysedToken token = tokenStack.Pop();
AddTokenToResult(TokenTypeEnum.Query, token.RawInput, query.Query.GetMainRepresentation());
EvaluateQueueBody(query);
}
private static bool IsParameterMatch(ParameterNode parameter, AnalysedToken token)
{
if (token.IsEndOfInput)
{
return(false);
}
if (string.IsNullOrEmpty(parameter.Parameter.ArgumentTemplate))
{
return(true);
}
return(Regex.IsMatch(token.Value, parameter.Parameter.ArgumentTemplate));
}
private void EvaluateDefaultQuery(QueryNode query)
{
AnalysedToken token = tokenStack.Peek();
if (token.CanBeQuery && query.Queries.TryGetValue(token.NormalisedValue, out QueryNode subQuery))
{
result.Context.QueryPath.Add(subQuery.Query.Key);
EvaluateExplicitQueue(subQuery);
}
else
{
result.Context.QueryPath.Add(query.DefaultQuery.Query.Key);
EvaluateQueueBody(query.DefaultQuery);
}
}
private void EvaluateOption(QueryNode query)
{
AnalysedToken token = tokenStack.Peek();
if (!query.Options.TryGetValue(token.NormalisedValue, out OptionNode option))
{
EvaluateOptionList(query);
return;
}
OptionContext.Builder optionContext = OptionContext.Empty.ToBuilder();
optionContext.Key = option.Option.Key;
AddTokenToResult(TokenTypeEnum.Option, token.RawInput, option.Option.GetMainRepresentation());
tokenStack.Pop();
EvaluateParameters(option, optionContext.Parameters);
result.Context.Options.Add(optionContext.Key, optionContext.ToImmutable());
}
public Input Evaluate(ParsedInput parsedInput)
{
input = parsedInput;
if (IsInputNullOrEmpty())
{
return(Input.BuildUnrecognised(input));
}
PrepareTokenStack();
wrongInput = false;
result = Input.Empty.ToBuilder();
result.ParsedInput = input.ToBuilder();
AnalysedToken firstToken = tokenStack.Peek();
if (firstToken.IsParameter || firstToken.IsExplicitOption)
{
if (tree.Root.DefaultQuery == null)
{
AddWrongTokenToResult(firstToken.RawInput);
}
else
{
result.Context.Key = tree.Root.DefaultQuery.Query.Key;
EvaluateQueueBody(tree.Root.DefaultQuery);
}
}
else if (tree.Root.Queries.TryGetValue(firstToken.NormalisedValue, out QueryNode command))
{
result.Context.Key = command.Query.Key;
EvaluateExplicitQueue(command);
}
else
{
AddWrongTokenToResult(firstToken.RawInput);
}
FinishEvaluation();
return(result.ToImmutable());
}
private void EvaluateParameters(ParameteriseNode statement, IDictionary <string, ParameterContext> context)
{
parameterIndex = 0;
AnalysedToken token = null;
ParameterContext.Builder repetableParameter = null;
while (!wrongInput &&
parameterIndex < statement.Parameters.Count &&
tokenStack.Count > 0)
{
token = tokenStack.Peek();
ParameterNode parameter = statement.Parameters[parameterIndex];
if (token.IsEndOfParameterList)
{
if (parameter.Parameter.IsRepeatable || parameter.Parameter.IsOptional)
{
AddTokenToResult(TokenTypeEnum.EndOfParameterList, token.RawInput);
tokenStack.Pop();
break;
}
AddWrongTokenToResult(token.RawInput);
return;
}
if (parameter.Parameter.IsOptional)
{
if (!IsParameterMatch(parameter, token))
{
parameterIndex++;
continue;
}
AddTokenToResult(TokenTypeEnum.Parameter, token.RawInput, token.Value);
tokenStack.Pop();
if (parameter.Parameter.IsRepeatable)
{
if (repetableParameter == null)
{
repetableParameter = ParameterContext.Empty.ToBuilder();
repetableParameter.Key = parameter.Parameter.Key;
}
repetableParameter.Values.Add(token.Value);
}
else
{
context[parameter.Parameter.Key] = ParameterContext.Build(parameter.Parameter.Key, token.Value);
parameterIndex++;
}
}
else
{
if (!IsParameterMatch(parameter, token))
{
if (repetableParameter == null)
{
AddWrongTokenToResult(token.RawInput);
return;
}
break;
}
AddTokenToResult(TokenTypeEnum.Parameter, token.RawInput, token.Value);
tokenStack.Pop();
if (parameter.Parameter.IsRepeatable)
{
if (repetableParameter == null)
{
repetableParameter = ParameterContext.Empty.ToBuilder();
repetableParameter.Key = parameter.Parameter.Key;
}
repetableParameter.Values.Add(token.Value);
}
else
{
context[parameter.Parameter.Key] = ParameterContext.Build(parameter.Parameter.Key, token.Value);
parameterIndex++;
}
}
}
if (repetableParameter != null)
{
context[repetableParameter.Key] = repetableParameter.ToImmutable();
}
if (!wrongInput &&
statement.Type == NodeTypeEnum.Query)
{
if (tokenStack.Peek().IsEndOfInput)
{
tokenStack.Pop();
}
if (tokenStack.Count > 0)
{
if (token != null &&
!token.IsEndOfParameterList)
{
AddWrongTokenToResult(token.RawInput);
}
if (statement.Parameters.Count < 1)
{
AddWrongTokenToResult(tokenStack.Peek().RawInput);
}
}
}
}
