this ia a beta graf for sed.  a state diagram, if u will.
     Sun Dec 21 97   AM 11 43 48
     
     sed commands:
     r w s / g p l a i c w d
               P           D
     b t 
     MODIFIERS (ADJECTIVES/ADVERBS)                             _______
     !                                                        /  output \ 
     g                                                       |    file   |                     
     \{m,n\}                                                  \ ________/
     \(\)                                                          ^
                                                                   ^
                                                                   ^
                                                                   w
 SEPARATORS : ;  -e                                                ^                                                                  |
 CONTROL FLOW MODS:  b t d D                                       ^                  |
 ADDRESS:  // ,                                                    ^
 LIMITS :  |(\) \{\}                                               ^
 UNSPECIFIED BUFFERS : \1 \2 ... \9                                ^
   _____________                                              _____^________
 /              |                                           /  STANDARD     |
|   SCRIPT      |                                          |    inPUT       |
|_______________|                                          |________________|
       .                                                           .
       .                                                           .
       .                                                           .
     a i c                                                        p P l      
       .                                                           .
       .                                                           .
       .       __________________            __________________    .
       .      |                  |---h H--->|                  |   .
       .      |   PATTERN        |          |       HOLD       |   .
       .      |    SPACE         |<----x--->|       SPACE      |   .
       .      |                  |          |                  |   .
       .      |                  |<--g G----|                  |   .
       .      |__________________|          |__________________|   .
       .                                                           .
       .                                                           .
       .                                                           .
       .                                                           .
       .                                                           .
 ______V___________________________________________________________V_____ 
|                                                                        |
|                                                                       /
|                               STANDARD   outPUT                    /
|                                                                  /
|                                                                 |         
|_________________________________________________________________|