Re^3: How can we interpolate an expression??

Great understanding!

say "Product is @{[$number * $multiplier]}";
    ^           ^ ^        ^
    |           | |        |
    |           | |        + - EXPRESSION
    |           | + - reference
    |           + - dereference
    + - interpolate
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Re^4: How can we interpolate an expression?? by tobyink (Canon) on Sep 20, 2012 at 20:37 UTC
It's such a common combination of operations that it's even got a name: the baby cart. `perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'`	[reply]
Re^5: How can we interpolate an expression?? by Kenosis (Priest) on Sep 21, 2012 at 02:46 UTC
Excellent, tobyink! I enjoy what it says there: Discovered by Larry Wall, 1994. It's the Discovered part that's intriguing...	[reply]
Re^6: How can we interpolate an expression?? by tobyink (Canon) on Sep 21, 2012 at 05:49 UTC
A number of Perl's "features" are actually bugs that were discovered, found to be useful and have been documented and carefully preserved. One that springs to mind is that `s/.../.../ee` evaluates twice, `s/.../.../eee` evaluates thrice, etc. I have a feeling that the baby cart is one of these. `perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'`	[reply] [d/l] [select]