This is the main method. Using this method you can parse the string with a given template.
Pointer to a *valid* ReadArgs instance.
The template to be used to parse the given string. The template string is a list of one or more fields separated by commas, with zero or more attributes separated by the "/" char. Valid attributes are:
Field is a switch. It may be either set of left out.
Field is a number. Strings are not allowed.
Field is required. If it is left out, the parse fails.
The keyword must be given when filling the option.
Multiple strings. The result is stored inside a special NodeMaster class.
The string to parse