Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Re^3: hash of hashes

by graff (Chancellor)
on Nov 27, 2006 at 04:18 UTC ( #586181=note: print w/ replies, xml ) Need Help??


in reply to Re^2: hash of hashes
in thread hash of hashes

this is my complete code:

Well, what happened to  $refine =1; ? Where's the  use strict; and the  use Data::Dumper; that others suggested earlier? (In other words, if you think this is the whole script, you're wrong.) When you do this:

while (<LOOKUP>) { ($name, $id) = (split m{\t})[3, 4]; print "id: $id\n"; $data{$file}{$id} = $name; }
is it possible that the "$id" string (fifth tab-delimited field on each line of $file) is at the end of the line? If so, that would mean that there's a "\n" (or "\r\n") included in the value of $id.

If you've already tried chop and chomp to no avail, try this instead:

s/[\r\n]+$//;
That can be handy for cases where you are reading data files that come from some OS other than the one your script is running on. Do that both inside the  while <LOOKUP> loop and inside the  while <dig_go> loop.

Apart from that, if you'll start applying some of the advice you've already been given (use strict, use Data::Dumper), problems will be easier to diagnose, and you should be able to find the problem on your own. You might also want to use the perl debugger (start your script with  perl -d script_file ), set break points inside each of those while loops, and see what's going on (cf. perldebtut and perldebug).

If your script has  use Data::Dumper; , you can say  p Dumper(\%data) as a debugger command, to see what's in your hash structure, as well as just  p to print the current value of $_ (whatever was just read from a file). Very handy, and really simple. Do that.


Comment on Re^3: hash of hashes
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://586181]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (7)
As of 2014-07-28 04:55 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    My favorite superfluous repetitious redundant duplicative phrase is:









    Results (186 votes), past polls