HTML-LinkExtractor-0.13/0040777000062000006210000000000010167356426013771 5ustar __mkpasswdHTML-LinkExtractor-0.13/Changes0100777000062000006210000000340410167356143015261 0ustar __mkpasswdRevision history for Perl extension HTML::LinkExtractor. 0.13 Fri Jan 7 00:47:13 2005 - bugs 9468, 7828 0.121 Thu Sep 30 05:34:26 2004 - forgot to update changes file 0.12 Thu Sep 30 05:34:26 2004 - abandoned HTML::TokeParser::Simple after taking http://rt.cpan.org/NoAuth/Bug.html?id=7811 0.11 Fri Mar 19 06:48:31 2004 - fixed bug#5723 (shouldn've happened in version 0.10) 0.10 Fri Feb 27 22:04:38 2004 - fixed bug#5470 where tags (img..) inside @TAGS_IN_NEED didn't get passed to callback 0.09 Sun Nov 30 06:33:41 2003 - took in a patch from Frederic Krueger - changed pod a tad, added license 0.08 Wed Sep 3 19:12:51 2003 - bumped required HTML::TokeParser version and changed deprecated $T->return_text calls to $T->as_is after a few users notified me 0.07 Wed Apr 9 00:57:20 2003 - small fix in meta refresh handling prompted by "Bengt Neiss" -- thanks dude 0.06 Fri Oct 11 10:12:41 2002 - fixed a stupid typo, added '!doctype' (a process instruction) to the tags list - added one more cool example (calculate download size of a page) 0.05 Wed Aug 28 07:57:12 2002 - *sigh* added prerequisites to Makefile.PL, edited Changes/Readme - No new features or nothing 0.04 Mon Aug 26 04:00:55 2002 - Converted to use HTML::TokeParser::Simple - Added a strip and appropriate pod - Release on CPAN (don't expect to ever need to upload a new version) 0.03 Mon Aug 19 03:30:55 2002 - And then polished up ( and added pod ) 0.02 Mon Aug 19 01:27:55 2002 - The first incarnation is written (ugly) 0.01 Mon Aug 19 00:47:55 2002 - original version; created by h2xs 1.21 with options -AX -p 5.000 -n HTML::LinkExtractor HTML-LinkExtractor-0.13/LICENSE0100777000062000006210000005070007767367045015013 0ustar __mkpasswdTerms of Perl itself a) the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version, or b) the "Artistic License" --------------------------------------------------------------------------- The General Public License (GPL) Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 675 Mass Ave, Cambridge, MA 02139, USA. 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The End HTML-LinkExtractor-0.13/LinkExtractor.pm0100777000062000006210000004434610167356412017126 0ustar __mkpasswdpackage HTML::LinkExtractor; use strict; use HTML::TokeParser 2; # use HTML::TokeParser::Simple 2; use URI 1; use Carp qw( croak ); use vars qw( $VERSION ); $VERSION = '0.13'; ## The html tags which might have URLs # the master list of tagolas and required attributes (to constitute a link) use vars qw( %TAGS ); %TAGS = ( a => [qw( href )], applet => [qw( archive code codebase src )], area => [qw( href )], base => [qw( href )], bgsound => [qw( src )], blockquote => [qw( cite )], body => [qw( background )], del => [qw( cite )], div => [qw( src )], # IE likes it, but don't know where it's documented embed => [qw( pluginspage pluginurl src )], form => [qw( action )], frame => [qw( src longdesc )], iframe => [qw( src )], ilayer => [qw( background src )], img => [qw( dynsrc longdesc lowsrc src usemap )], input => [qw( dynsrc lowsrc src )], ins => [qw( cite )], isindex => [qw( action )], # real oddball layer => [qw( src )], link => [qw( src href )], object => [qw( archive classid code codebase data usemap )], q => [qw( cite )], script => [qw( src )], # HTML::Tagset has 'for' ~ it's WRONG! sound => [qw( src )], table => [qw( background )], td => [qw( background )], th => [qw( background )], tr => [qw( background )], ## the exotic cases meta => undef, '!doctype' => [qw( url )], # is really a process instruction ); ## tags which contain <.*?> STUFF TO GET use vars qw( @TAGS_IN_NEED ); @TAGS_IN_NEED = qw( a blockquote del ins q ); use vars qw( @VALID_URL_ATTRIBUTES ); @VALID_URL_ATTRIBUTES = qw( action archive background cite classid code codebase data dynsrc href longdesc lowsrc pluginspage pluginurl src usemap ); sub new { my($class, $cb, $base, $strip) = @_; my $self = bless {}, $class; $self->{_cb} = $cb if defined $cb; $self->{_base} = URI->new($base) if defined $base; $self->strip( $strip || 0 ); return $self; } sub strip { my( $self, $on ) = @_; return $self->{_strip} unless defined $on; return $self->{_strip} = $on ? 1 : 0; } ## $p= HTML::TokeParser->new($filename || FILEHANDLE ||\$filecontents); # ## $p= HTML::TokeParser::Simple->new($filename || FILEHANDLE ||\$filecontents); sub parse { my( $this, $hmmm ) = @_; my $tp = new HTML::TokeParser( $hmmm ); # my $tp = new HTML::TokeParser::Simple( $hmmm ); unless($tp) { croak qq[ Couldn't create a HTML::TokeParser object: $!]; # croak qq[ Couldn't create a HTML::TokeParser::Simple object: $!]; } $this->{_tp} = $tp; $this->_parsola(); return(); } sub _parsola { my $self = shift; ## a stack of links for keeping track of TEXT ## which is all of "text" my @TEXT = (); $self->{_LINKS} = []; # ["S", $tag, $attr, $attrseq, $text] # ["E", $tag, $text] # ["T", $text, $is_data] # ["C", $text] # ["D", $text] # ["PI", $token0, $text] while (my $T = $self->{_tp}->get_token() ) { my $NL; #NewLink my $Tag = $T->[1]; # my $Tag = $T->return_tag; my $got_TAGS_IN_NEED=0; ## Start tag? if($T->[0] eq 'S' ) { # if($T->is_start_tag) { next unless exists $TAGS{$Tag}; ## Do we have a tag for which we want to capture text? $got_TAGS_IN_NEED = 0; $got_TAGS_IN_NEED = grep { /^\Q$Tag\E$/i } @TAGS_IN_NEED; ## then check to see if we got things besides META :) if(defined $TAGS{ $Tag }) { for my $Btag(@{$TAGS{$Tag}}) { ## and we check if they do have one with a value if(exists $T->[2]->{ $Btag }) { # if(exists $T->return_attr()->{ $Btag }) { $NL = $T->[2]; # $NL = $T->return_attr(); ## TAGS_IN_NEED are tags in deed (start capturing the STUFF) if($got_TAGS_IN_NEED) { push @TEXT, $NL; $NL->{_TEXT} = ""; } } } }elsif($Tag eq 'meta') { $NL = $T->[2]; # $NL = $T->return_attr(); if(defined $$NL{content} and length $$NL{content} and ( defined $$NL{'http-equiv'} && $$NL{'http-equiv'} =~ /refresh/i or defined $$NL{'name'} && $$NL{'name'} =~ /refresh/i ) ) { my( $timeout, $url ) = split m{;\s*?URL=}i, $$NL{content},2; my $base = $self->{_base}; $$NL{url} = URI->new_abs( $url, $base ) if $base; $$NL{url} = $url unless exists $$NL{url}; $$NL{timeout} = $timeout if $timeout; } } ## In case we got nested tags if(@TEXT) { $TEXT[-1]->{_TEXT} .= $T->[-1] ; # $TEXT[-1]->{_TEXT} .= $T->as_is; } ## Text? }elsif($T->[0] eq 'T' ) { # }elsif($T->is_text) { $TEXT[-1]->{_TEXT} .= $T->[-2] if @TEXT; # $TEXT[-1]->{_TEXT} .= $T->as_is if @TEXT; ## Declaration? }elsif($T->[0] eq 'D' ) { # }elsif($T->is_declaration) { ## We look at declarations, to get anly custom .dtd's (tis linky) my $text = $T->[-1] ; # my $text = $T->as_is; if( $text =~ m{ SYSTEM \s \" ( [^\"]* ) \" > $ }ix ) { $NL = { raw => $text, url => $1, tag => '!doctype' }; } ## End tag? }elsif($T->[0] eq 'E' ){ # }elsif($T->is_end_tag){ ## these be ignored (maybe not in between tags ## unless we're stacking (bug #5723) if(@TEXT and exists $TAGS{$Tag}) { $TEXT[-1]->{_TEXT} .= $T->[-1] ; # $TEXT[-1]->{_TEXT} .= $T->as_is; my $pop = pop @TEXT; $TEXT[-1]->{_TEXT} .= $pop->{_TEXT} if @TEXT; $pop->{_TEXT} = _stripHTML( \$pop->{_TEXT} ) if $self->strip; $self->{_cb}->($self, $pop) if exists $self->{_cb}; } } if(defined $NL) { $$NL{tag} = $Tag; my $base = $self->{_base}; for my $at( @VALID_URL_ATTRIBUTES ) { if( exists $$NL{$at} ) { $$NL{$at} = URI->new_abs( $$NL{$at}, $base) if $base; } } if(exists $self->{_cb}) { $self->{_cb}->($self, $NL ) if not $got_TAGS_IN_NEED or not @TEXT; #bug#5470 } else { push @{$self->{_LINKS}}, $NL; } } }## endof while (my $token = $p->get_token) undef $self->{_tp}; return(); } sub links { my $self = shift; ## just like HTML::LinkExtor's return $self->{_LINKS}; } sub _stripHTML { my $HtmlRef = shift; my $tp = new HTML::TokeParser( $HtmlRef ); # my $tp = new HTML::TokeParser::Simple( $HtmlRef ); my $t = $tp->get_token(); # MUST BE A START TAG (@TAGS_IN_NEED) # otherwise it ain't come from LinkExtractor if($t->[0] eq 'S' ) { # if($t->is_start_tag) { return $tp->get_trimmed_text( '/'.$t->[1] ); # return $tp->get_trimmed_text( '/'.$t->return_tag ); } else { require Data::Dumper; local $Data::Dumper::Indent=1; die " IMPOSSIBLE!!!! ", Data::Dumper::Dumper( '$HtmlRef',$HtmlRef, '$t', $t, ); } } 1; package main; unless(caller()) { require Data::Dumper; if(@ARGV) { for my $file( @ARGV ) { if( -e $file ) { my $LX = new HTML::LinkExtractor( ); $LX->parse( $file ); print Data::Dumper::Dumper($LX->links); undef $LX; } else { warn "The file `$file' doesn't exist\n"; } } } else { my $INPUT = q{ COUNT THEM BOYS AND GIRLS, LINKS OUTGHT TO HAVE 9 ELEMENTS. 1 2 3 4 Perlmonks.org

5 hello there 6 7 now 8 To be or not to be. 9

Just Another Perl Hacker,
}; my $LX = new HTML::LinkExtractor(); $LX->parse(\$INPUT); print scalar(@{$LX->links()})." we GOT\n"; print Data::Dumper::Dumper( $LX->links() ); } } __END__ =head1 NAME HTML::LinkExtractor - Extract I> from an HTML document =head1 DESCRIPTION HTML::LinkExtractor is used for extracting links from HTML. It is very similar to L, except that besides getting the URL, you also get the link-text. Example ( B ): use HTML::LinkExtractor; use Data::Dumper; my $input = q{If I am a LINK!!! }; my $LX = new HTML::LinkExtractor(); $LX->parse(\$input); print Dumper($LX->links); __END__ # the above example will yield $VAR1 = [ { '_TEXT' => ' I am a LINK!!! ', 'href' => bless(do{\(my $o = 'http://perl.com/')}, 'URI::http'), 'tag' => 'a' } ]; C will also correctly extract nested I> tags. =head1 SYNOPSIS ## the demo perl LinkExtractor.pm perl LinkExtractor.pm file.html othefile.html ## or if the module is installed, but you don't know where perl -MHTML::LinkExtractor -e" system $^X, $INC{q{HTML/LinkExtractor.pm}} " perl -MHTML::LinkExtractor -e' system $^X, $INC{q{HTML/LinkExtractor.pm}} ' ## or use HTML::LinkExtractor; use LWP qw( get ); # use LWP::Simple qw( get ); my $base = 'http://search.cpan.org'; my $html = get($base.'/recent'); my $LX = new HTML::LinkExtractor(); $LX->parse(\$html); print qq{\n}; for my $Link( @{ $LX->links } ) { ## new modules are linked by /author/NAME/Dist if( $$Link{href}=~ m{^\/author\/\w+} ) { print $$Link{_TEXT}."\n"; } } undef $LX; __END__ ## or use HTML::LinkExtractor; use Data::Dumper; my $input = q{If I am a LINK!!! }; my $LX = new HTML::LinkExtractor( sub { print Data::Dumper::Dumper(@_); }, 'http://perlFox.org/', ); $LX->parse(\$input); $LX->strip(1); $LX->parse(\$input); __END__ #### Calculate to total size of a web-page #### adds up the sizes of all the images and stylesheets and stuff use strict; use LWP; # use LWP::Simple; use HTML::LinkExtractor; # my $url = shift || 'http://www.google.com'; my $html = get($url); my $Total = length $html; # print "initial size $Total\n"; # my $LX = new HTML::LinkExtractor( sub { my( $X, $tag ) = @_; # unless( grep {$_ eq $tag->{tag} } @HTML::LinkExtractor::TAGS_IN_NEED ) { # print "$$tag{tag}\n"; # for my $urlAttr ( @{$HTML::LinkExtractor::TAGS{$$tag{tag}}} ) { if( exists $$tag{$urlAttr} ) { my $size = (head( $$tag{$urlAttr} ))[1]; $Total += $size if $size; print "adding $size\n" if $size; } } } }, $url, 0 ); # $LX->parse(\$html); # print "The total size of \n$url\n is $Total bytes\n"; __END__ =head1 METHODS =head2 C<$LX-Enew([\&callback, [$baseUrl, [1]]])> Accepts 3 arguments, all of which are optional. If for example you want to pass a C<$baseUrl>, but don't want to have a callback invoked, just put C in place of a subref. This is the only class method. =over 4 =item 1 a callback ( a sub reference, as in C, or C<\&sub>) which is to be called each time a new LINK is encountered ( for C<@HTML::LinkExtractor::TAGS_IN_NEED> this means after the closing tag is encountered ) The callback receives an object reference(C<$LX>) and a link hashref. =item 2 and a base URL ( URI->new, so its up to you to make sure it's valid which is used to convert all relative URI's to absolute ones. $ALinkP{href} = URI->new_abs( $ALink{href}, $base ); =item 3 A "boolean" (just stick with 1). See the example in L<"DESCRIPTION">. Normally, you'd get back _TEXT that looks like '_TEXT' => ' I am a LINK!!! ', If you turn this option on, you'll get the following instead '_TEXT' => ' I am a LINK!!! ', The private utility function C<_stripHTML> does this by using Ls method get_trimmed_text. You can turn this feature on an off by using C<$LX-Estrip(undef EE 0 EE 1)> =back =head2 C<$LX-Eparse( $filename EE *FILEHANDLE EE \$FileContent )> Each time you call C, you should pass it a C<$filename> a C<*FILEHANDLE> or a C<\$FileContent> Each time you call C a new C object is created and stored in C<$this-E{_tp}>. You shouldn't need to mess with the TokeParser object. =head2 C<$LX-Elinks()> Only after you call C will this method return anything. This method returns a reference to an ArrayOfHashes, which basically looks like (Data::Dumper output) $VAR1 = [ { tag => 'img', src => 'image.png' }, ]; Please note that if yo provide a callback this array will be empty. =head2 C<$LX-Estrip( [ 0 || 1 ])> If you pass in C (or nothing), returns the state of the option. Passing in a true or false value sets the option. If you wanna know what the option does see Lnew([\&callback, [$baseUrl, [1]]])>|/"METHODS"> =head1 WHAT'S A LINK-type tag Take a look at C<%HTML::LinkExtractor::TAGS> to see what I consider to be link-type-tag. Take a look at C<@HTML::LinkExtractor::VALID_URL_ATTRIBUTES> to see all the possible tag attributes which can contain URI's (the links!!) Take a look at C<@HTML::LinkExtractor::TAGS_IN_NEED> to see the tags for which the C<'_TEXT'> attribute is provided, like Ca href="#"E TEST E/aE> =head2 How can that be?!?! I took at look at L|HTML::Tagset> and the following URL's http://www.blooberry.com/indexdot/html/tagindex/all.htm http://www.blooberry.com/indexdot/html/tagpages/a/a-hyperlink.htm http://www.blooberry.com/indexdot/html/tagpages/a/applet.htm http://www.blooberry.com/indexdot/html/tagpages/a/area.htm http://www.blooberry.com/indexdot/html/tagpages/b/base.htm http://www.blooberry.com/indexdot/html/tagpages/b/bgsound.htm http://www.blooberry.com/indexdot/html/tagpages/d/del.htm http://www.blooberry.com/indexdot/html/tagpages/d/div.htm http://www.blooberry.com/indexdot/html/tagpages/e/embed.htm http://www.blooberry.com/indexdot/html/tagpages/f/frame.htm http://www.blooberry.com/indexdot/html/tagpages/i/ins.htm http://www.blooberry.com/indexdot/html/tagpages/i/image.htm http://www.blooberry.com/indexdot/html/tagpages/i/iframe.htm http://www.blooberry.com/indexdot/html/tagpages/i/ilayer.htm http://www.blooberry.com/indexdot/html/tagpages/i/inputimage.htm http://www.blooberry.com/indexdot/html/tagpages/l/layer.htm http://www.blooberry.com/indexdot/html/tagpages/l/link.htm http://www.blooberry.com/indexdot/html/tagpages/o/object.htm http://www.blooberry.com/indexdot/html/tagpages/q/q.htm http://www.blooberry.com/indexdot/html/tagpages/s/script.htm http://www.blooberry.com/indexdot/html/tagpages/s/sound.htm And the special cases http://www.blooberry.com/indexdot/html/tagpages/d/doctype.htm '!doctype' is really a process instruction, but is still listed in %TAGS with 'url' as the attribute and http://www.blooberry.com/indexdot/html/tagpages/m/meta.htm If there is a valid url, 'url' is set as the attribute. The meta tag has no 'attributes' listed in %TAGS. =head1 SEE ALSO L, L, L. =head1 AUTHOR D.H (PodMaster) Please use http://rt.cpan.org/ to report bugs. Just go to http://rt.cpan.org/NoAuth/Bugs.html?Dist=HTML-Scrubber to see a bug list and/or repot new ones. =head1 LICENSE Copyright (c) 2003, 2004 by D.H. (PodMaster). All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The LICENSE file contains the full text of the license. =cut HTML-LinkExtractor-0.13/Makefile.PL0100777000062000006210000000154710126723435015743 0ustar __mkpasswduse ExtUtils::MakeMaker; # See lib/ExtUtils/MakeMaker.pm for details of how to influence # the contents of the Makefile that is written. WriteMakefile( 'NAME' => 'HTML::LinkExtractor', 'VERSION_FROM' => 'LinkExtractor.pm', # finds $VERSION PREREQ_PM => { # 'HTML::TokeParser::Simple' => '2', # or a minimum workable version 'HTML::TokeParser' => 0, }, ($] >= 5.005 ? ## Add these new keywords supported since 5.005 (ABSTRACT_FROM => 'LinkExtractor.pm', # retrieve abstract from module AUTHOR => 'PodMaster') : ()), ); __END__ perl Makefile.PL && nmake realclean && cls && perl Makefile.PL && nmake disttest nmake dist TAR=ptar TARFLAGS=-zcvf COMPRESS=echo perl -e"my $f=glob q,*.tar,;warn rename $f, qq,$f.gz," chmod 7777 *.gz perl -le" `cpan-upload $_` for( (sort glob q,*.gz,)[-1]) " HTML-LinkExtractor-0.13/MANIFEST0100777000062000006210000000023307767367025015131 0ustar __mkpasswdChanges LinkExtractor.pm Makefile.PL MANIFEST README test.pl LICENSE META.yml Module meta-data (added by MakeMaker) HTML-LinkExtractor-0.13/META.yml0100777000062000006210000000054710167356226015246 0ustar __mkpasswd# http://module-build.sourceforge.net/META-spec.html #XXXXXXX This is a prototype!!! It will change in the future!!! XXXXX# name: HTML-LinkExtractor version: 0.13 version_from: LinkExtractor.pm installdirs: site requires: HTML::TokeParser: 0 distribution_type: module generated_by: ExtUtils::MakeMaker version 6.25 HTML-LinkExtractor-0.13/README0100777000062000006210000000051610017737313014643 0ustar __mkpasswdINSTALLATION To install this module type the following: perl Makefile.PL make make test make install If you are on a windows box you should use 'nmake' rather than 'make'. For documentation, try perldoc HTML::LinkExtractor perldoc LinkExtractor.pm pod2text LinkExtractor.pm >>README HTML-LinkExtractor-0.13/test.pl0100777000062000006210000000350010126723325015272 0ustar __mkpasswd# Before `make install' is performed this script should be runnable with # `make test'. After `make install' it should work as `perl test.pl' ######################### # change 'tests => 1' to 'tests => last_test_to_print'; use Test; BEGIN { plan( tests => 12, onfail => sub { exit @_ }, ); } use HTML::LinkExtractor; ok(1); # If we made it this far, we're ok. my $output = `$^X $INC{'HTML/LinkExtractor.pm'}`; #use Data::Dumper;die Dumper $output; ok( $output =~ m{9 we GOT} or 0 ); ok( $output =~ m{\Q'cite' => 'http://www.stonehenge.com/merlyn/'} or 0 ); ok( $output =~ m{\Q'url' => 'http://www.foo.com/foo.html'} or 0 ); my $LX = HTML::LinkExtractor::->new(undef,undef,1); ok( $LX->strip or 0 ); ok( $LX->strip(1) && $LX->strip or 0 ); $LX->parse(\ q{ stuff that matters } ); #use Data::Dumper;warn Dumper( scalar $LX->links ); ok( $LX->links->[0]->{_TEXT} eq "stuff that matters" or 0); $LX = HTML::LinkExtractor::->new( sub { my( $lx, $link ) = @_; $output = $link->{_TEXT}; }, 'http://use.perl.org', 1 ); ok(1); $LX->parse(\ q{ perl guy } ); ok( $output eq 'perl guy' or 0 ); ok( @{ $LX->links } == 0 ? 1 : 0 ); # bug#5470 $output = []; $LX = HTML::LinkExtractor::->new( sub { my( $lx, $link ) = @_; push @$output,$link; }, 'http://use.perl.org', 1 ); $LX->parse(\ q{ } ); ok( @$output == 2 ); $LX = HTML::LinkExtractor::->new(undef, 'http://use.perl.org', 1 ); $LX->parse(\ q{ fooger } ); ok( @{ $LX->links } == 2 );