Share your knowledge at the LQ Wiki.
Go Back > Forums > Non-*NIX Forums > Programming
User Name
Programming This forum is for all programming questions.
The question does not have to be directly related to Linux and any language is fair game.


  Search this Thread
Old 11-04-2010, 05:17 AM   #1
LQ Newbie
Registered: Apr 2010
Posts: 29

Rep: Reputation: 0
Push All Special Varible Before Calling a Fucnction


I have a code like this:
open (INPUT,"<file"){

while (<INPUT>){
. . . }
if ($_=~/(?:(Error|exception))/){ $error=$1; save_error($error); } if ($_=~ /somthinelse/) {
. . .
sub save_error($error){ open(ERRINP,">Err.txt") #open another file and save the error to that file print ERRINP $error close ERRINP; open(ERRINP,"<Err.txt") # open the error log file whlie (<ERRINP>){ # for checking some other condition in error file if $_=~/..../ { do_some_thing } pro
. .
opening another file while we have an open file will replace $_ and this cause problem for the second if becuase now $_ has been changed,

is there any way that I can push $_ and other file pointers and pop them after calling a function?

Thanks in advance..

Last edited by smc2; 11-04-2010 at 05:24 AM.
Old 11-05-2010, 02:29 PM   #2
LQ Guru
Registered: Mar 2004
Distribution: SusE 8.2
Posts: 5,863
Blog Entries: 1

Rep: Reputation: Disabled
Hi -

It looks like you're writing in Perl.

Perl arrays can be used as stacks; you can "push" and "pop" anything you want, to your heart's content:

'Hope that helps!



Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
command result as varible mkiler Programming 1 03-10-2009 10:22 AM
Setting global varible Corrado Linux - Software 3 03-05-2007 02:24 PM
redirect stdout to a varible Furlinastis Programming 3 12-07-2005 06:01 AM
how to export a varible in the kernel firefoxii Programming 0 06-08-2004 04:06 AM
command output to varible!!! fooforon Programming 3 02-05-2004 08:41 PM > Forums > Non-*NIX Forums > Programming

All times are GMT -5. The time now is 11:19 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration