Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

Re: Strange behaviour of m and $_

by Fletch (Bishop)
on Oct 17, 2006 at 22:20 UTC ( [id://578913]=note: print w/replies, xml ) Need Help??


in reply to Strange behaviour of m and $_

Subroutine invocations don't interpolate in double quoted strings (of which m// is a special kind). Either store the results from your function in a scalar and let that interpolate, or use something like /@{[ test_reg1() ]}/ instead.

And an aside, don't use the leading ampersand on subroutine calls; it does things to how the sub is called and unless you specifically have a reason to (and know why you're doing it) you should just omit it.

Replies are listed 'Best First'.
Re^2: Strange behaviour of m and $_
by ysth (Canon) on Oct 18, 2006 at 00:10 UTC
    And an aside, don't use the leading ampersand on subroutine calls; it does things to how the sub is called
    Slight clarification: that only applies when no () follow the sub name.
      ...except
      $\=$/; sub print { CORE::print("[$_[0]]"); } print('foo'); # foo &print('bar'); # [bar]

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://578913]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others chanting in the Monastery: (5)
As of 2024-03-29 11:02 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found