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Re^4: Spaceship Zero (>=0)

by pKai (Priest)
on Nov 10, 2008 at 08:51 UTC ( #722583=note: print w/replies, xml ) Need Help??

in reply to Re^3: Spaceship Zero
in thread Spaceship Zero

It seems obvious that >= is a different operator than <=>.

If your want to test for something being >=0 and call it the copysign function, it's O. K., but the revelation of the OP is that spaceship zero implements the well-known Sign function abbreviated as sgn() in mathematics (not just some builtin "in BASIC".)

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[Discipulus]: good morning Corion!
[Corion]: I spent parts of yesterday digging into Filter::Simple to make it not change the line numbers of unfiltered code, but I think I need regex help (which will come in a SoPW I guess). I tried @lines = /((?:"...."|[^" \n]+)\n)/gs, but that matched on...
[Corion]: ... foo "\0\0\0\n" bar\n by matching the first \n instead of matching the four-bytes-in- double-quotes part
[Corion]: ... and I still don't understand why ;)
[Corion]: This is because Filter::Simple does some string-trickery, replacing all string literals with "quoted packed numbers"
[Corion]: I fear this might be a bug in the RE engine, but if it is a bug, even fixing won't help me because I need Filter::Simple for Filter::signatures , which provides signatures as a backwards compatibility feature for Perl <5.22 - and these ...
[Corion]: ... won't get a fix anyway ;) My plan B is to encode the string placeholders avoiding \r and \n

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