It occured to me that it might be beneficial to show the state transition diagram for the above state machine. 

 +--------------------------------------------------+
 |                                                  |
 |                       _______                    |
 |                 left /       \ right             |
 |         +------------|initial|-----------------+ |
 |         |            \_______/                 | |
 |         |                                      | |
 |         |                          +--------+  | |
 |      ___V___                       |        |  | |
 |left /       \ right                |       _V__V_V_ 
 +-----|  red  |--------------+       | left /        \ right
       \_______/              |       +------|  blue  |------+
           ^                  |              \________/      |
           |                  |                              |
           |                  |                              |
           |                __V____                          |
           |          left /       \ right                   |
           |         +-----|  end  |------+                  |
           |         |     \_______/      |                  |
           |         |       ^  ^         |                  |
           |         |       |  |         |                  |
           |         +-------+  +---------+                  |
           |                                                 |
           +-------------------------------------------------+

[download]

-- All code is 100% tested and functional unless otherwise noted.

In reply to Re^2: Are state machines just for parsing? by sleepingsquirrel
in thread Are state machines just for parsing? by samtregar

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