I've found that the easiest way to create comparisons using boolean algebra is to start with them overly simplistic and then slowly bring it together in it's tightest form.

For your search, I would start with 
if ($form{searchtype} eq "keyword") {  #check that what was filled in 
+the form was right
    if ($class =~ /keyword/) { #Check the class is type keyword
        if ($desc =~ /$form{'searchstring'}/i) { #Make sure the string
+ is in $desc
            if ($desc =~ /$form{'searchprice'}/) { #Check for price in
+ $desc
                 print "$desc\n";
            }
        }
    }
}

[download]

Because it is broken down like this, it is easy to see repeats in logic, and what conditionals might be missing. It also eases debugging of the logic, since you can put print statements to see a particular conditional is not working. Now we can use each nested if as an "and" and rewrite it as:
if (($form{'searchtype'} eq "keyword") && ($class =~ /keyword/)
    && ($desc =~ /$form{'searchstring'}/i) && ($desc =~ /$form{'search
+price'}/)) { 
    print "$desc\n";
}

[download]

From your question, the above should print desc only when those 4 different conditions are all met.
HTH
Dave

In reply to Re: Search question by dfog
in thread Search question by SysAdm

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