A RcPropertyParser for use with install_property_parser or install_style_property_parser which parses flags.
Flags can be specified by their name, their nickname or numerically. Multiple flags can be specified in the form `"( flag1 | flag2 | ... )"`.
| pspec | |
| gstring |
the StringBuilder to be parsed |
| property_value |
a Value which must hold flags values. |
|
true if |