Re^4: what would you like to see in perl5.12?


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Re^4: what would you like to see in perl5.12?

by JavaFan (Canon)

on Aug 07, 2008 at 16:26 UTC ( [id://702928]=note: print w/replies, xml )

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in reply to Re^3: what would you like to see in perl5.12?
in thread what would you like to see in perl5.12?

printf "%{" is legal, and prints %{. With warnings on, it does issue a warning, but it's (currently) not illegal.

But your initial proposal talked about interpolating in strings, and in strings, "%{hash}" is currently fine. No warnings. I'd be more worried about regular strings 'breaking' than any (s)printf formats.

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Re^5: what would you like to see in perl5.12?
by BrowserUk (Patriarch) on Aug 07, 2008 at 17:48 UTC

As far as I know, none of the new extensions in 5.10 are enabled unless a switch or pragma is used, so old code can continue untouched.

The point about %{} is that it is a fairly natural extension of existing mechanisms that doesn't conflict with existing uses. That there may exist by happenstance some code that would need to be changed in minor ways before it would run under the auspices of the feature pragma is not, (should not be), a barrier to the addition of new features.

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