comment on

I did try to use the two versions of code in the OP, but neither of them produced any output at all for the sample data you provided. And I'm not about to figure out why -- the time would be better spent starting over with a better approach.

I think this bit from the OP is the "goal", but I'm not quite sure what you mean by this:

Am trying to club the <text entries together those having same y & page attribute values from the below input.

Do you mean: if there are two (or three, or more) "text" elements within one "font" element, and they all have the same attribute values for "y" and "page", you want them to be collapsed together into a single "text" element? If that's what you mean, that's an intriguing task, which I was able to solve using XML::LibXML. (Other monks could probably do it more neatly -- "I am just an egg" when it comes to DOM manipulation...)

In order to get that data to work with XML::LibXML (or any XML parser), I needed to add a "root" element around the set of "font" elements. Here's the code with the parsable version of the data attached:

#!/usr/bin/perl

use strict;
use warnings;
use XML::LibXML;

my $xmlstring;
{
    local $/;
    $xmlstring = <DATA>;
}
my $xml = XML::LibXML->new;
my $doc = $xml->parse_string( $xmlstring );
   # you can do $xml->parse_file( "filename" ) instead

for my $font_node ( $doc->findnodes( "//font" )) {
    my %attr_val;
    my $matched_text_nodes = 1;
    my $matched_content;
    my @text_nodes = $font_node->findnodes( "./text" );
    for my $tnode ( @text_nodes ) {
        my @atts = $tnode->attributes;
        my $y_indx = grep { $atts[$_]->nodeName eq 'y' } 0 .. $#atts;
        my $p_indx = grep { $atts[$_]->nodeName eq 'page' } 0 .. $#att
+s;

        if ( ! keys %attr_val ) {  # first text_node
            $attr_val{y} = $atts[$y_indx]->textContent;
            $attr_val{p} = $atts[$p_indx]->textContent;
        }
        elsif ( $attr_val{y} ne $atts[$y_indx]->textContent or
                $attr_val{p} ne $atts[$p_indx]->textContent ) {
            $matched_text_nodes = 0;
        }
        if ( $matched_text_nodes ) {
            $matched_content .= $tnode->textContent . " ";
        }
    }
    if ( $matched_text_nodes ) {
        $text_nodes[0]->firstChild->setData( $matched_content );
        $font_node->removeChild( $_ ) for ( @text_nodes[1..$#text_node
+s] );
    }
}
print $doc->toString;

__DATA__
<doc>
<font size="12" face="IJCINN+AvantGarde-Bold" color="#1BADEB">
<text x="198" y="200" width="32" height="12" page="vii">Part I</text>
<text x="242" y="200" width="75" height="12" page="vii">Introduction</
+text>
<text x="329" y="200" width="7" height="12" page="vii">2</text>
</font>
<font size="9" face="IJCINN+AvantGarde-Bold" color="#231F20">
<text x="183" y="221" width="47" height="9" page="vii">Chapter 1</text
+>
</font>
<font size="10" face="IJCIOP+Frutiger-Light" color="#231F20">
<text x="242" y="220" width="121" height="10" page="vii">Managers and 
+Management</text>
<text x="373" y="220" width="6" height="10" page="vii">2</text>
</font>
<font size="9" face="IJCINN+AvantGarde-Bold" color="#231F20">
<text x="198" y="234" width="32" height="9" page="vii">History</text>
<text x="195" y="246" width="35" height="9" page="vii">Module</text>
</font>
<font size="12" face="IJCINN+AvantGarde-Bold" color="#1BADEB">
<text x="194" y="292" width="36" height="12" page="vii">Part II</text>
<text x="242" y="292" width="54" height="12" page="vii">Planning</text
+>
<text x="308" y="292" width="15" height="12" page="vii">56</text>
</font>
</doc>
[download]

(update: streamlined the logic for concatenating textContent values onto $matched_content)

When I ran that, it printed the following results to STDOUT -- but of course I don't know if this is what you really want...


<?xml version="1.0"?>
<doc>
<font size="12" face="IJCINN+AvantGarde-Bold" color="#1BADEB">
<text x="198" y="200" width="32" height="12" page="vii">Part I Introdu
+ction 2 </text>


</font>
<font size="9" face="IJCINN+AvantGarde-Bold" color="#231F20">
<text x="183" y="221" width="47" height="9" page="vii">Chapter 1 </tex
+t>
</font>
<font size="10" face="IJCIOP+Frutiger-Light" color="#231F20">
<text x="242" y="220" width="121" height="10" page="vii">Managers and 
+Management 2 </text>

</font>
<font size="9" face="IJCINN+AvantGarde-Bold" color="#231F20">
<text x="198" y="234" width="32" height="9" page="vii">History</text>
<text x="195" y="246" width="35" height="9" page="vii">Module</text>
</font>
<font size="12" face="IJCINN+AvantGarde-Bold" color="#1BADEB">
<text x="194" y="292" width="36" height="12" page="vii">Part II Planni
+ng 56 </text>


</font>
</doc>
[download]

In reply to Re: Trouble in text manipulation by graff
in thread Trouble in text manipulation by thirilog

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