#!/usr/bin/perl

use WWW::Mechanize;

#!/usr/bin/perl -w

use strict;
use Win32::OLE qw(in with);
use Win32::OLE::Const 'Microsoft Excel';

$Win32::OLE::Warn = 3;                                # die on errors.
+..

# get already active Excel application or open new
my $Excel = Win32::OLE->GetActiveObject('Excel.Application')
    || Win32::OLE->new('Excel.Application', 'Quit');  

# open Excel file
my $Book = $Excel->Workbooks->Open("C:/Documents and Settings/rto5u/My
+ Documents/CV.xls"); 

# select worksheet number 1 (you can also select a worksheet by name)
my $Sheet = $Book->Worksheets(1);

foreach my $row (2..4)
{
 foreach my $col (1..1)
 {
  # skip empty cells
  next unless defined $Sheet->Cells($row,$col)->{'Value'};


        my $URL = 'http://scholar.google.com/advanced_scholar_search';
        my $FORM_NAME = 'f';
        #print "Author Name: ";
        #chomp ($AUTHOR = <>);
        my $AUTHOR = "MD Li";
        #print "Paper Title: ";
        #chomp ($TITLE = <>);
        my $TITLE = $Sheet->Cells($row,$col)->{'Value'};
        print "$TITLE";
        #my $TITLE = "Region-specific transcriptional response to chro
+nic nicotine in rat brain";

        my $mech = WWW::Mechanize->new(stack_depth=>10);

        $mech->get($URL) || die ("Could not connect to $URL.\n");

        my $res = $mech->submit_form(
            form_name => $FORM_NAME,
            fields => {
                'num' => 100,
                'as_epq' => $TITLE,
                'as_occt' => 'title',
                'as_sauthors' => $AUTHOR,
                'as_allsubj' => 'all',
            },
        );

        while ($res && $res->is_success()){
            my $content = $res->content;
            #print $content;
            while ($content =~ /<p class=g>(.*?)<\/font>\s\s\s/gs){
                my $section = $1;
            
                my $title    = "";
                my $citedby    = 0;

                # get title
                $title = getTitle($section);
                $title =~ s/<.*?>//g;
                $title =~ s/&hellip;/\.\.\./g;
    
                # get citedby #
                $citedby = getCitedBy($section);
        
                if ($citedby){
                    print "\"$title\"\nCited by: $citedby\n\n";
                }
            }
            $res = $mech->follow_link( text_regex => qr/Next/i);
        }
    }
}

$Book->Close;
######################################################################
+#######

sub getTitle($){
    my ($section) = @_;
    my $title;

    if ($section =~ /<span class="w">.*?<a href.*?>(.*?)<\/a><\/span>/
+s){     # papers with a link
        $title = $1;
        
    }elsif ($section =~ /&nbsp;(.*?)<font size=-1>/s){            # pa
+pers w/o a link
        $title = $1;
    }else{
        $title = $1;
    }
    return $title;
}

#---------------------------------------------------------------------
+-------
sub getCitedBy($){
    my ($section) = @_;
    my $citedby;

    if ($section =~ />Cited by (\d+)</s){
        $citedby = $1;
    }
    return $citedby;
}

#---------------------------------------------------------------------
+-------
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