Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

Re^2: Markup tags should be written in:

by marinersk (Priest)
on Aug 13, 2013 at 06:25 UTC ( #1049216=note: print w/replies, xml ) Need Help??


in reply to Re: Markup tags should be written in:
in thread Markup tags should be written in:

Interestingly, the article compares the found state to lowercase, but does not perform a comparison when converted to all usercase.

So is it the lowercase, or the consistency of the case, that yields the gain?

Inquiring minds want to know.

  • Comment on Re^2: Markup tags should be written in:

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1049216]
help
Chatterbox?
[Corion]: But maybe there is some other Unicode string that will be true but have a zero width
[hippo]: For explanation, I've seen this construct in someone else's code (no names, no pack drill) and couldn't think of a situation to trigger it.
[Corion]: You'll have to look somewhere esoteric for that. Maybe some tied variable or special dualvar can also trigger that. But it's certainly not a common occurrence
[Corion]: And on 5.20, the following also outputs no find:perl -wle 'for my $x ("\x{2000}".."\ x{1fffff}") { if( $x && ! length $x ) { warn qq(<$x>); warn length $x; die } }'
[Corion]: (this time on Unix)
[hippo]: Understood. I'll have to go through the code and see if it's doing anything fancy with ties, dual-vars or non-scalars. In the end, it's probably a bug though.
[Corion]: Aaah - you should be able to do this with overload, but I would hit somebody really hard if they constructed objects that are true but the empty string, and you not knowing about the domain knowledge where this makes sense

How do I use this? | Other CB clients
Other Users?
Others chanting in the Monastery: (14)
As of 2017-07-27 13:34 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    I came, I saw, I ...
























    Results (413 votes). Check out past polls.