I'm building a search engine to use against my companies files. My first version was a straightforward use of Index Server with modifications to the asp script that came with it. My second version was a Perl CGI script that called the asp script to run Index Server and pass the details back to the Perl script. From there I could use Perl to manipulate the files as I wished (i.e. highlighting search words).

Unfortunately (but perhaps unsurprisingly) Index Server does not fully cover the search criteria I wish to use. The use of wildcard searches is required, in any format (*stuff, st*ff, and stuff*). I've written a 'brute force' search program that matches on regular expressions, but with over 6000 documents to search it takes a while.

My question is this: does anybody have any ideas on how to improve the speed? My code for the search is 

# Take each word from the array of search words and apply the qr// ope
+rator to prevent a recompile for each regex.
# Output the words to a new array using map (faster than foreach).
    
    @search_array = map { qr/\b$_\b/i } @and_array;

# For each file within the directory

    while ( defined( $File = readdir(DIR) ) ) {
        
# Skip the directory and parent directory (read as . and ..)
        
    next if $File =~ /^\.\.?$/;
            
# Open the file for regular expression match        

    open ( FILE, "$File" ) || die "Cannot open file $File: $!";
    
# Read file into an array

    @file_contents = ();
    @file_contents = <FILE>;     
    close FILE;
  
    $nomatch = "0";
# Loop to match each search word held in the array against each line i
+n the file.
    WORD:
    for $word ( @search_array ) {
        @found = ();
        @found = grep /$word/i, @file_contents;
        if ( scalar @found == 0 ) {
            $nomatch = "1";
            last WORD;
        }
    }
    if ( $nomatch == "0" ) {
        $x = $x + 1;
        print LIST "$x $File ".$TelonDir.$in{'scope'}."\\$File \n";
    }

    # End of while defined $File

    closedir DIR;
    close LIST;

[download]

Please go easy on me - I've learn't Perl from scratch by myself over the last 8 months and I'm certainly not the most adept!

elbow

Edit by dws to clean up tags

In reply to Speed up the search by elbow

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