Re: [SPOILER] Perl Quiz of the Week #24 (Turing Machine simulation)

On Fri, Sep 17, 2004 at 10:26:42AM -0400, Mark Jason Dominus wrote:
> 
> >     if (/^(\w+)\s+(\w)\s+(\w+)\s+(\w)\s+([LR])\s*$/)
> 
> I'm surprised that all four of the sample solutions posted so far use
> a complicated-looking regex like this instead of going for 'split',
> seemed to me to be the obvious and straightforward technique.

"Your program should die with an error message if it encounters a badly
formatted line in the state transition instruction file."

Using the regex you can validate the entire line at once.

Ronald