Part of twisted.words.xish.xpathparser View Source View In Hierarchy
Every rule creates a Context that links to its parent rule. The contexts can be used for debugging.
| Parameters | parent | Context object or None | 
| scanner | Scanner object | |
| tokenpos | scanner token position (type: int) | |
| rule | name of the rule (type: str) | |
| args | tuple listing parameters to the rule |