Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine
 
PerlMonks  

Re: switchcheck.pl (Getopt, $_, nonport interfaces)

by ybiC (Prior)
on Jul 24, 2001 at 06:01 UTC ( #99212=note: print w/replies, xml ) Need Help??

Help for this page

Select Code to Download


  1. or download this
    foreach(@hostname){
        undef @unique;
        $hostname=$_;
    
  2. or download this
    foreach $hostname(@hostname){
        undef @unique;
    

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://99212]
help
Chatterbox?
[ambrus]: However, I also looked at the internals, and found two interesting things:
[marto]: stupid xpath question, I have a xpath copied from the browser, is the * wildcard supposed to work for IDs? e.g. '//*[@id="*"]/ div/div/header/p/a '?
[ambrus]: The main loop for unixish systems is in https://metacpan. org/source/ KARASIK/Prima-1. 49/unix/apc_app.c. It is a hand-rolled select loop, but also always spins at least once every 0.2 seconds for some reason.
[ambrus]: marto: no, not that way. if you just want to test for an existing id attribute, then write *[@id] , or you can match a regexp to the value of that attribute like *[@id=~/something/ ]
[marto]: ambrus, thanks I ended up going with '//*[starts- with(@id, "thread_")]...
[ambrus]: Sometimes it's easier to just match elements in ways other than xpath, like directly with perl code.

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (6)
As of 2016-12-08 10:50 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    On a regular basis, I'm most likely to spy upon:













    Results (140 votes). Check out past polls.