private void ParseArguments(IList <string> tmpReasons)
{
bool doHelp = Arguments.Count == 0;
InputFiles = new List <string>();
CSharpFileOptions.Builder builder = FileOptions.ToBuilder();
Dictionary <string, FieldDescriptor> fields =
new Dictionary <string, FieldDescriptor>(StringComparer.OrdinalIgnoreCase);
foreach (FieldDescriptor fld in builder.DescriptorForType.Fields)
{
fields.Add(fld.Name, fld);
}
foreach (string argument in Arguments)
{
if (StringComparer.OrdinalIgnoreCase.Equals("-help", argument) ||
StringComparer.OrdinalIgnoreCase.Equals("/help", argument) ||
StringComparer.OrdinalIgnoreCase.Equals("-?", argument) ||
StringComparer.OrdinalIgnoreCase.Equals("/?", argument))
{
doHelp = true;
break;
}
Match m = ArgMatch.Match(argument);
if (m.Success)
{
FieldDescriptor fld;
string name = m.Groups["name"].Value;
string value = m.Groups["value"].Value;
if (fields.TryGetValue(name, out fld))
{
object obj;
if (TryCoerceType(value, fld, out obj, tmpReasons))
{
builder[fld] = obj;
}
}
else if (name == "line_break")
{
string tmp;
if (LineBreaks.TryGetValue(value, out tmp))
{
LineBreak = tmp;
}
else
{
tmpReasons.Add("Invalid value for 'line_break': " + value + ".");
}
}
else if (!File.Exists(argument))
{
doHelp = true;
tmpReasons.Add("Unknown argument '" + name + "'.");
}
else
{
InputFiles.Add(argument);
}
}
else
{
InputFiles.Add(argument);
}
}
if (doHelp || InputFiles.Count == 0)
{
tmpReasons.Add("Arguments:");
foreach (KeyValuePair <string, FieldDescriptor> field in fields)
{
tmpReasons.Add(String.Format("-{0}=[{1}]", field.Key, field.Value.FieldType));
}
tmpReasons.Add("-line_break=[" + string.Join("|", new List <string>(LineBreaks.Keys).ToArray()) + "]");
tmpReasons.Add("followed by one or more file paths.");
}
else
{
FileOptions = builder.Build();
}
}
