And while loops are just gotos in disguise. Pretty much anyway.

While i posted somewhat tongue-in-cheek im curious: Is that really true in perl?

and somewhere in the block, we have the increment of the variant.

I suppose you could code it that way, but you can also use a continue block: 

while (EXPR) {
} continue {
 STMTS;
}

[download]

Which can be useful at times and is pretty much what Perl does anyway. Ie: 

for(INIT;EXPR;INCR) { STMTS; }

[download]

more or less becomes: 

{ INIT; while (EXPR) { STMTS; } continue { INCR; } }

[download]

I think how much value you place on your second point will vary depending on your exposure to C and other C like languages. Personally I always hated 3 arg for loops finding them difficult to read, but lately ive been doing a lot of C and have come to appreciate them a lot more (probably becuase I find reading them not to be so confusing as it used to be).

Anyway, i stuck the smiley face on there for a reason. I just thought the fact that the two constructs are identical in perl (insofar as perl converts 3arg for loops into while continue constructs anyway) made your comment a touch ironic. :-)

---
demerphq

In reply to Re^5: Regexp to extract groups of numbers by demerphq
in thread Regexp to extract groups of numbers by neilh

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