Re: Less greedy pattern match

On 4/22/2008 3:09 AM, pk wrote:
> On Monday 21 April 2008 16:16, Ed Morton wrote:
> 
> 
>>>>Well yes...would that improve performance somewhat too?
>>>
>>>
>>>Haven't checked. Would be interesting to know, though; because
>>>generally I prefer  cond{action}  instead of  {if(cond)action}
>>>constructs when using awk (though primarily not for efficiency
>>>reasons).
>>
>>Run on a 1-million line file with 11 fields per line where each line
>>starts with the line number (ran each command 3 times, results
>>concatenated):
>>[snip] 
>>Can't say I see any conclusive evidence for either approach being more
>>efficient, but I may be missing something.
> 
> 
> I seem to get more or less the same results (ie, no major differences)
with
> other assorted tests on 1-million lines file (GNU awk).
> 
> 
>>Like Janis says, though, efficiency isn't the main reason to structure
>>your awk code to look like awk...
> 
> 
> And so what is the reason, apart from personal taste/awk-ish style/etc.
> (sorry for the noob question)?  

I actually think awk-ish style is the main reason, but apart from that
there's
conciseness. Just like diamonds have 4 Cs to consider (Cut, Colour,
Carrat, and
Clarity), so software has it's own 4 Cs (Cohesion, Coupling, Conciseness,
and
Consistency). When you're buying the diamond/software you of course need
to add
a 5th C, Cost, to both of them!

	Ed.