Class StateMachineFileParser

source code

Known Subclasses:

• SMARTParser
• , TrecParser

A state machine based line-oriented parser.

You should subclass this and implement 'state' functions that begin with '_on', e.g., _onStart(self, line)

Each such function:

• takes a single argument 'line' which contains the next line read from input string.
• returns the next state to go into, e.g. "End", or returns None (i.e. returns nothing) to stay in the same state.

Additionally, two special functions must be defined with no parameters:

1. _onInit(self)
2. _onFinish(self)

to handle initialization (local state) and end of file (useful for formats that use no ending tag).