Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

Re-2: Encoding wonders

by John M. Dlugosz (Monsignor)
on Jun 15, 2001 at 00:47 UTC ( #88621=note: print w/ replies, xml ) Need Help??


in reply to Re: Encoding wonders
in thread Encoding wonders

I don't understand why it opens itself. Why does opening "a string" append a $ and then treat it as a variable?


Comment on Re-2: Encoding wonders
Re: Re-2: Encoding wonders
by dimmesdale (Friar) on Jun 15, 2001 at 03:58 UTC
    From the perlfunc::open section of the site(aslo the perl manpages):
    If EXPR is omitted, the scalar variable of the same name as the FILEHANDLE contains the filename.
    That means that if an open is called like open 0 then 0 is the filehandle, and the "scalar variable" to open. Take, for instance, this example from perlfunc::open:
    $ARTICLE = 100; open ARTICLE or die "Can't find article $ARTICLE: $!\n"; while (<ARTICLE>) {...
    If your asking why, as in why is it that way, I'd presume its for brevity and ease, as in:
    $LOG = '/path/to/log/file/'; open LOG;
      It's probably one of those assume-for-you shortcuts that either didn't take off, nobody remembers anymore, or is from one of the source lanauges.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://88621]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (4)
As of 2014-09-20 23:15 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    How do you remember the number of days in each month?











    Results (163 votes), past polls