Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot

Re: Re: Atomic operations in perl and Tk::IO

by rinceWind (Monsignor)
on Apr 01, 2003 at 15:18 UTC ( #247252=note: print w/replies, xml ) Need Help??

in reply to Re: Atomic operations in perl and Tk::IO
in thread Atomic operations in perl and Tk::IO

because $_[0] is the same as $prch when you call tail_lines($prch, $_[0]), and this seems to be not what you want.
Sorry, hiseldl, you are not correct. The call to tail_lines is in an anonymous sub, which is a closure, which is passed a line of text by the Tk::IO mechanism.

See Tk::IO for more details

Replies are listed 'Best First'.
Re: Re: Re: Atomic operations in perl and Tk::IO
by hiseldl (Priest) on Apr 01, 2003 at 16:44 UTC

    I've been writing Tk scripts for over a year now, and I temporarily forgot about closures as callbacks, oops, sorry. I'll leave the post as it is to maintain continuity of the thread and as a reminder to other's using Tk to watch for closures in the callbacks. :-)


    What time is it? It's Camel Time!

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://247252]
[1nickt]: stevieb it's just a simple web page with a POST form. You can set the attribute so when the user's browser opens a file manager to select a file to upload, it will only show those o f the type you want to get.
[1nickt]: Question for my learned friends: is there a word meaning "CSV-like" i.e. I want to say that I accept CSV files, but the separator doesn;t have to be a comma. Or is that implicit these days?
[chacham]: dsv
[chacham]: dsv

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (4)
As of 2017-07-22 18:51 GMT
Find Nodes?
    Voting Booth?
    I came, I saw, I ...

    Results (340 votes). Check out past polls.