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Even excluding IO, I cannot discern any appreciable difference either. @words contains 178,000 words:

[0] Perl> $c =0; $t = time; m[(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time( +)-$t);; Found 1905 matches in 0.14288 seconds [0] Perl> $c =0; $t = time; m[(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.12593 seconds [0] Perl> $c =0; $t = time; m[(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13659 seconds [0] Perl> $c =0; $t = time; m[(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.14437 seconds [0] Perl> $c =0; $t = time; m[(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13993 seconds [0] Perl> $c =0; $t = time; m[(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] and + ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13856 seconds [0] Perl> $c =0; $t = time; m[^(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] an +d ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13786 seconds [0] Perl> $c =0; $t = time; m[^(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] an +d ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13947 seconds [0] Perl> $c =0; $t = time; m[^(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] an +d ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.12269 seconds [0] Perl> $c =0; $t = time; m[^(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)] an +d ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13944 seconds [0] Perl> $c =0; $t = time; m[(?=^.*a)(?=^.*e)(?=^.*i)(?=^.*o)(?=^.*u) +] and ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.12400 seconds [0] Perl> $c =0; $t = time; m[(?=^.*a)(?=^.*e)(?=^.*i)(?=^.*o)(?=^.*u) +] and ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.14011 seconds [0] Perl> $c =0; $t = time; m[(?=^.*a)(?=^.*e)(?=^.*i)(?=^.*o)(?=^.*u) +] and ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13754 seconds [0] Perl> $c =0; $t = time; m[(?=^.*a)(?=^.*e)(?=^.*i)(?=^.*o)(?=^.*u) +] and ++$c for @words; printf "Found $c matches in %.5f seconds\n", (time()-$t);; Found 1905 matches in 0.13191 seconds

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?


In reply to Re^3: regex to find vowels in anyorder by BrowserUk
in thread regex to find vowels in anyorder by varghees

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