gistfile1.py

state = 0
for line in lines:
    if match(r"^\s*Scenario:\s*(.*)$", line):
        current_scenario = new Scenario(match.r(1))
        current_feature.append_scenario(current_scenario)
        state = 1
    if match(r"^\s*Given (.*)$", line):
        if state != 1: raise Error("unexpected Given")
        current_scenario.append_given_step(match.r(1).strip())
    if match(r"^\s*When (.*)$", line):
        if state == 0: raise Error("unexpected When")
        current_scenario.append_when_step(match.r(1).strip())
        state = 2
    if match(r"^\s*Then (.*)$", line):
        if state == 0: raise Error("unexpected Then")
        current_scenario.append_then_step(match.r(1).strip())
        state = 3
    if match(r"^\s*And (.*)$", line):
        if state == 0: raise Error("unexpected And")
        step = match.r(1).strip()
        if state == 1:
            current_scenario.append_given_step(step)
        elif state == 2:
            current_scenario.append_when_step(step)
        elif state == 3:
            current_scenario.append_then_step(step)
        else:
            raise Error()
    if match(r"^\s*$", line):
        state = 0