Says strredwolf:
But expanding $_ out does make it look like ... a state engine,
(Shrug.) All I can do is to
repeat that it isn't a state engine.
In fact, I'm at something of a loss to imagine
where you think the state variable is. | [reply] |
| [reply] |
Says strredwolf:
$d and $q.
OK, that just makes no sense at all.
A state variable has to record state.
The only thing $q is used for is
to match the subtitution on the right side of the s{}{}
with the pattern on the left. It's just a table lookup.
In fact, an earlier version of the program omitted $q
and just had:
redo if s/`I($z)/$1/;
redo if s/``K($z)($z)/$1/;
redo if s/```S($z)($z)($z)/``$1$3`$2$3/;
...
I think the program probably would work fine with that change,
although it would be less interesting. (It would sometimes
go into an infinite loop for most interesting values of $_.)
As for $d, it's
only used internal to the regex itself, so it's obviously
impossible that it could be a state variable.
The loop, of course, is conditional on $N.
Of course, but $N never takes on any value
except 0 or 1. State machines are normally understood to
have more than two states.
If what you're saying is that this is a state machine
because it uses variables, then Oracle 8 is also a mere state machine.
| [reply]
[d/l] |
