Re: Flawless Script problems?

I managed to get it working.

I changed you code a little here is what I came up with.

Firstly...

elsif ($option eq 'f') {
  print "Who are you looking for?\n";
  &find;
}
[download]

changed to

elsif ($option eq 'f') {
  print "Who are you looking for?\n";
  chomp(my $f = <STDIN>);
  $f =~s/\cM//g;
  if (!&find($f)) {
      print "Name $f cannot be found in the directory.\n";
}
[download]

Then I changed you find sub from

sub find {
   chomp(my $f = <STDIN>);
   # $f=~tr/\r\z//d;
   #$f =~s/\r\z//;
   $f =~s/\cM//g;
     if (exists $dbm{$f}) {
     my($name, $number, $email, $addr1, $addr2) = split "\0", $dbm{$f}
+;  
   print "$name\n$number\n$email\n$addr1\n$addr2\n\n\n";
 }
   else {
     print "Name $f cannot be found in the directory.\n";
}   
      
  }
[download]

to look as follows

sub find {
    my $rc = 0;
    my $f = shift;
     foreach my $key ( sort keys %dbm ) {
            my($name, $number, $email, $addr1, $addr2) = split "\0", $
+dbm{$key};
            if ($name eq $f) {
                print "$name\n$number\n$email\n$addr1\n$addr2\n\n\n";
                $rc = 1;
                last;
            }
      }
}
[download]

Disclaimer: I know nothing about tie and less about SDBM_File but thats why I like perl.

-----
Of all the things I've lost in my life, its my mind I miss the most.

Comment on Re: Flawless Script problems? Select or Download Code

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Re: Re: Flawless Script problems? by sulfericacid (Deacon) on Mar 13, 2003 at 07:22 UTC
Thanks for your help! I still don't understand why the script would work on some computers but not others...for some people the find feature does work as it is, and it should work cause I see nothing wrong with the script anywhere (not saying I would recognize a problem anyways). I think I will end up trying to rewrite that entire section of code since what you did is just outside what I understand right now. (I haven't worked with $rc or shift yet). One thing I do find really interesting is `if (!&find($f)) {` . I understand what it's trying to say but I don't have the foggiest idea how you get from $dbm{$f} to if (!&find($f)) { . I will have a look into that too, lol. Thanks for your help, atleast it's working now :) "Age is nothing more than an inaccurate number bestowed upon us at birth as just another means for others to judge and classify us" sulfericacid	[reply] [d/l]
Re: (2) Flawless Script problems? by AcidHawk (Vicar) on Mar 13, 2003 at 08:35 UTC
Perhaps a brief explination is in order. When you enter the option f (for Find) and ask who you want to look for. The answer is captured into $f. I have then run the `&find` subroutine passing it the name that was received ie: `&find($f)`. This function I enclosed in an `if not` block to check the return of `&find`. So if the return, from `&find`, is 0(fail) then `&find` could not find a matching name otherwise `&find` returned a 1(pass). The `&find` subroutine is easy to explain... First you set a var to 0 (ie: `$rc = 0;`) this is what will be returned if NO match is found. Next we make a local var for `&find` = the name (`$f`) we sent to the sub-routine. This is done using `shift`. After that, all we do is, check if `foreach` key in the hash, equals the name we entered (now `$f` in `&find`). If it matches we set `$rc` to 1 and stop searching through the hash. `&find` returns the var $rc. Hope that doesn't comfuse you further. Cheers ----- Of all the things I've lost in my life, its my mind I miss the most.	[reply] [d/l] [select]
Re: Re: (2) Flawless Script problems? by sulfericacid (Deacon) on Mar 13, 2003 at 18:37 UTC
Thanks for all your help AcidHawk, I'll review your code some more to ensure I know what you did. Thanks again! "Age is nothing more than an inaccurate number bestowed upon us at birth as just another means for others to judge and classify us" sulfericacid	[reply]