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Re^5: Perl is dying

by demerphq (Chancellor)
on Feb 10, 2007 at 16:36 UTC ( #599363=note: print w/replies, xml ) Need Help??


in reply to Re^4: Perl is dying
in thread Perl is dying

for instance using $& somewhere in your program doesn't slow down every other regular expression like it does in Perl.

In perl5.10 there is a new way to do this that doesnt come with a generalized performance penalty. In fact, Perl 5.10 expands the regex syntax greatly and offers some nice new optimisations.

---
$world=~s/war/peace/g

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[msh210]: perl -e'warn "test$/", "" '
[msh210]: doesn't append anything.
[msh210]: It should say "If the last nonempty element of LIST" or "If the string thus to be printed does not end in a newline""
[msh210]: Am I wrong?
[shmem]: no. You're right.
[msh210]: About time... last time I was right was... I don't even remember when.
[shmem]: perl -e 'warn "test$/", ^@^ '
[Eily]: well, at least it's right about warn doing the same thing as die :)
[shmem]: same with undef as last element
[msh210]: oh, good point. It's the best kind of correct

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