public static List <Parameter> ParseHeading(IList <string> queue, ref int start)
{
var parameters = new List <Parameter>();
string verb = null, complement = null;
try
{
switch (Regex.Match(queue[start], Patterns.punctuation).Value)
{
case ":":
{
bool isOutParameter;
try
{
Verbs.SplitSentence(queue[start + 1], ref verb, ref complement);
isOutParameter = ParameterOrientation(verb);
while (Operators.parameterOrientations.Contains(verb))
{
start = start + 1;
foreach (string declaration in complement.Split(','))
{
if (!String.IsNullOrWhiteSpace(declaration))
{
parameters.Add(new Parameter(isOutParameter, declaration));
}
}
if (Regex.IsMatch(queue[start], ",\\s*$"))
{
complement = queue[start + 1];
}
else
{
Verbs.SplitSentence(queue[start + 1], ref verb, ref complement);
isOutParameter = ParameterOrientation(verb);
}
}
}
catch (ArgumentOutOfRangeException)
{
throw new Exception("Bug: Attempting to parse an unfinished definition.");
}
}
break;
case "(":
{
foreach (string declaration in
Regex.Match(queue[start], Patterns.getdefparams).Value.Split(','))
{
if (!String.IsNullOrWhiteSpace(declaration))
{
Verbs.SplitSentence(declaration, ref verb, ref complement);
if (Operators.parameterOrientations.Contains(verb))
{
parameters.Add(new Parameter(verb, complement));
}
else
{
parameters.Add(new Parameter(false, declaration));
}
}
}
}
break;
}
}
catch (Exception e)
{
throw new Exception(CommandLineInterface.GetErrorMessageWithLineNumberAndHeading(start, "Syntax Error", e));
}
start = start + 1;
return(parameters);
}
