Perl Examples

ChilkatHOMEASPVisual BasicVB.NETC#Visual C++CMFCDelphiFoxProJavaPerlPHPPythonRubySQL ServerVBScript

Perl Examples

Quick Start
Perl Unicode
Perl Byte Array
Perl Certs
Perl Email
Perl Encryption
Perl FTP
HTML-to-XML
Perl HTTP
Perl IMAP
Perl MHT
Perl MIME
Perl RSA
Perl S/MIME
Perl Signatures
Perl Socket
Perl Spider
Perl Tar
Perl Upload
Perl XML
Perl XMP
Perl Zip

More Examples...
String
Email Object
POP3
SMTP
RSS
Atom
Self-Extractor
Service
PPMD
Deflate
DH Key Exchange
DSA

Unreleased...
Bzip2
LZW
Bz2
Icon

 

 

 

 

 

 

 

Avoid URLs Matching Any of a Set of Patterns

Demonstrates how to use "avoid patterns" to prevent spidering any URL that matches a wildcarded pattern. This example avoids URLs containing the substrings "java", "python", or "perl".

Download Chilkat Perl Module

use chilkat;

#  The Chilkat Spider component/library is free.
$spider = new chilkat::CkSpider();

#  The spider object crawls a single web site at a time.  As you'll see
#  in later examples, you can collect outbound links and use them to
#  crawl the web.  For now, we'll simply spider 10 pages of chilkatsoft.com
$spider->Initialize("www.chilkatsoft.com");

#  Add the 1st URL:
$spider->AddUnspidered("http://www.chilkatsoft.com/");

#  Avoid URLs matching these patterns:
$spider->AddAvoidPattern("*java*");
$spider->AddAvoidPattern("*python*");
$spider->AddAvoidPattern("*perl*");

#  Begin crawling the site by calling CrawlNext repeatedly.

for ($i = 0; $i <= 10; $i++) {

    $success = $spider->CrawlNext();
    if ($success == 1) {
        #  Show the URL of the page just spidered.
        print $spider->lastUrl() . "\r\n";
        #  The HTML is available in the LastHtml property
    }
    else {
        #  Did we get an error or are there no more URLs to crawl?
        if ($spider->get_NumUnspidered() == 0) {
            print "No more URLs to spider" . "\n";
        }
        else {
            print $spider->lastErrorText() . "\n";
        }

    }

    #  Sleep 1 second before spidering the next URL.
    $spider->SleepMs(1000);
}


 

Need a specific example? Send a request to support@chilkatsoft.com

© 2000-2007 Chilkat Software, Inc. All Rights Reserved.