Re: Re: Search question : Price Regex

Dave... again you have enlightened me... I have incorported this little sniplet into the previous (4) finds before printing $desc... works great!!! Once again... a major thanks from me to you...

The only line I don't quite understand is this one :

if ($desc =~ m/\$(\d{1,3},?[\d{3},?]*\.?\d{0,2})/) {
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It's looking to match any decimal- but I don't get the (1,3) or the (3},? --- does it mean any decimal up to 3 places prior to the comma??? I tried using a 15001-999999 search criteria and it doesn't seem to like the 6 decimal places...

Your help is tremendous... I owe you one....

_______SysAdm

2001-03-11 Edit by Corion : Removed PRE tags

Comment on Re: Re: Search question : Price Regex Download Code

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Re: Re: Re: Search question : Price Regex by dfog (Scribe) on Mar 12, 2001 at 19:58 UTC
The code I used to create and use that regex (Commented) is #!/usr/bin/perl -w my %form = ( 'searchprice' => "15001-9999999", ); my @Tests = ('$1600', ' $1,300 ', ' $1,600,000.43 ', ' $1600. ', ' $16 +00.43 '); foreach my $desc (@Tests) { print "Testing $desc\n"; my ($LowValue, $HighValue) = split("-", $form{'searchprice'}); #s +plits two values to compare desc to if ($desc =~ m/ \$ #Matches the dollar sign ( #Begins gathering the digit grouping \d{1,3},? #Grabs between 1 and 3 digits. #There must be at least one and at mo +st #3 before the first comma. [\d{3},?]* #This grabs groups of 3 digits, #and the comma after them if it exist +s \.?\d{0,2} #This grabs the final decimal point a +nd #up to two places after it if they ex +ist )#Ends the digit grouping /x #tells it to ignore whitespace ) { my ($Price) = $1; #sets $Price equal to the match in the regex $Price =~ s/,//g; #Strips out commas print "TestPrice $Price\n"; if (($LowValue <= $Price) && ($Price <= $HighValue)) { print "$desc\n"; } } else { print "No price found in $desc\n"; } print "\n"; } [download] The regex itself isn't quite as clean as it could be, but it works on the assumption that there is one and only one properly formatted price in each $desc. Dave	[reply] [d/l]

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Re: Re: Re: Search question : Price Regex
by dfog (Scribe) on Mar 12, 2001 at 19:58 UTC

#!/usr/bin/perl -w

my %form = (
        'searchprice' =>  "15001-9999999",
       );
my @Tests = ('$1600', ' $1,300 ', ' $1,600,000.43 ', ' $1600. ', ' $16
+00.43 ');

foreach my $desc (@Tests) {
    print "Testing $desc\n";
    my ($LowValue, $HighValue) = split("-", $form{'searchprice'});  #s
+plits two values to compare desc to
    if ($desc =~ m/  \$     #Matches the dollar sign
                 (      #Begins gathering the digit grouping
                      \d{1,3},?  #Grabs between 1 and 3 digits.  
                                 #There must be at least one and at mo
+st 
                                 #3 before the first comma.
                      [\d{3},?]* #This grabs groups of 3 digits, 
                                 #and the comma after them if it exist
+s
                      \.?\d{0,2} #This grabs the final decimal point a
+nd 
                                 #up to two places after it if they ex
+ist
                     )#Ends the digit grouping
                 /x  #tells it to ignore whitespace
        ) {
    my ($Price) = $1;  #sets $Price equal to the match in the regex
    $Price =~ s/,//g;  #Strips out commas
    print "TestPrice $Price\n";
    if (($LowValue <= $Price) && ($Price <= $HighValue)) {
        print "$desc\n";
    }
    } else {
    print "No price found in $desc\n";
    }
    print "\n";
}
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