private int ParseParameter(string cmdLine, int index)
{
int startIndex = index;
while (cmdLine[index] == '-' && index < cmdLine.Length)
{
index++;
}
if (cmdLine.Length == index || cmdLine[index] == ' ')
{
throw new CommandLineParserException("Parameter without name.");
}
if (!char.IsLetter(cmdLine[index]))
{
throw new CommandLineParserException("Parameter name must start with letter.");
}
int nameStartIndex = index;
while (index < cmdLine.Length && (char.IsLetterOrDigit(cmdLine[index]) || cmdLine[index] == '-'))
{
index++;
}
Parameter newParam = CreateNewParameter(cmdLine.Substring(nameStartIndex, index - nameStartIndex));
if (cmdLine.Length <= index || cmdLine[index] == ' ')
{
return(index - startIndex);
}
if (cmdLine[index] != ':' && cmdLine[index] != '=')
{
throw new CommandLineParserException("Parameter name contains invalid character '" + cmdLine[index] + "'.");
}
index++;
if (cmdLine[index] == ' ')
{
newParam.AddValue(string.Empty);
m_Params[newParam.Name] = newParam;
return((index - startIndex) + 1);
}
int valStartIndex = index;
char quote = cmdLine[index];
if ('\'' == quote || '"' == quote)
{
valStartIndex = ++index;
}
while (index < cmdLine.Length)
{
if ('\'' == quote || '"' == quote)
{
if (cmdLine[index] == quote)
{
break;
}
}
else if (' ' == cmdLine[index])
{
break;
}
index++;
}
if (cmdLine.Length == index && ('\'' == quote || '"' == quote))
{
throw new CommandLineParserException("Missing quote.");
}
newParam.AddValue(cmdLine.Substring(valStartIndex, index - valStartIndex));
m_Params[newParam.Name] = newParam;
return(index - startIndex);
}