XP is just a number PerlMonks

### Re: Re: Re: Re: Re: Alpha base-26 to base-10... (golf)

by Tomte (Priest)
 on Jul 01, 2003 at 16:10 UTC ( #270521=note: print w/replies, xml ) Need Help??

in reply to Re: Re: Re: Re: Alpha base-26 to base-10... (golf)
in thread Alpha base-26 to base-10...

To get it, try this:

while(<DATA>) { chomp; \$erg = b262b10(\$_); # scalar context is important! print \$erg, "\n"; } # equivalent to # sub b262b10{()=a..lc pop} # but with explaining output sub b262b10{@_=a..lc pop; print join " ", @_, "\n";@_} __DATA__ A Z AA AZ BA ZZ AAA ZBA __END__ # without the debug-output: 1 26 27 52 53 702 703 17629

regards,
tomte

If you have a difficult task, give it to a lazy person --
they will find an easier way to do it.

Replies are listed 'Best First'.
Re: Re: Re: Re: Re: Re: Alpha base-26 to base-10... (golf)
by John M. Dlugosz (Monsignor) on Jul 01, 2003 at 18:04 UTC
Ah, that's lc the lower-case function, not 1c the hex representation of 28.

But I still don't understand why you can have the following pop without a delimiter after the assignment statement. I think the purpose of the pop is to subtract one from the result.

I may be mistaken, but I read it the way, that the pop delivers the scalar parameter for lc, (replace it with shift, the result is the same).

the basic is that you get a list of all values between a and the parameter, evaluated in scalar-context (I had this wrong at first :-), you get the length of the list, which is of course the decimal representation.

regards,
tomte

If you have a difficult task, give it to a lazy person --
they will find an easier way to do it.

Create A New User
Node Status?
node history
Node Type: note [id://270521]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (6)
As of 2019-10-15 06:08 GMT
Sections?
Information?
Find Nodes?
Leftovers?
Voting Booth?
In 2019 the site I miss most is:

Results (37 votes). Check out past polls.

Notices?