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XLSX.pm

package Spreadsheet::XLSX;

use 5.006000;
use strict;
use warnings;

use base 'Spreadsheet::ParseExcel::Workbook';

our $VERSION = '0.17';

use Archive::Zip;
use Spreadsheet::ParseExcel;
use Spreadsheet::XLSX::Fmt2007;

################################################################################

sub new {
    my ($class, $filename, $converter) = @_;

my %shared_info;    # shared_strings, styles, style_info, rels, converter
    $shared_info{converter} = $converter;
    
    my $self = bless Spreadsheet::ParseExcel::Workbook->new(), $class;

my $zip                     = __load_zip($filename);

$shared_info{shared_strings}= __load_shared_strings($zip, $shared_info{converter});
    my ($styles, $style_info)   = __load_styles($zip);
    $shared_info{styles}        = $styles;
    $shared_info{style_info}    = $style_info;
    $shared_info{rels}          = __load_rels($zip);

$self->_load_workbook($zip, \%shared_info);

return $self;
}

sub _load_workbook {
    my ($self, $zip, $shared_info) = @_;

my $member_workbook = $zip->memberNamed('xl/workbook.xml') or die("xl/workbook.xml not found in this zip\n");
    $self->{SheetCount} = 0;
    $self->{FmtClass}   = Spreadsheet::XLSX::Fmt2007->new;
    $self->{Flg1904}    = 0;
    if ($member_workbook->contents =~ /date1904="1"/) {
        $self->{Flg1904} = 1;
    }

foreach ($member_workbook->contents =~ /\<(.*?)\/?\>/g) {

/^(\w+)\s+/;

my ($tag, $other) = ($1, $');

my @pairs = split /\" /, $other;

$tag eq 'sheet' or next;

my $sheet = {
            MaxRow => 0,
            MaxCol => 0,
            MinRow => 1000000,
            MinCol => 1000000,
        };

foreach ($other =~ /(\S+=".*?")/gsm) {

my ($k, $v) = split /=?"/;    #"

if ($k eq 'name') {
                $sheet->{Name} = $v;
                $sheet->{Name} = $shared_info->{converter}->convert($sheet->{Name}) if defined $shared_info->{converter};
            } elsif ($k eq 'r:id') {

$sheet->{path} = $shared_info->{rels}->{$v};

}

my $wsheet = Spreadsheet::ParseExcel::Worksheet->new(%$sheet);
        $self->{Worksheet}[$self->{SheetCount}] = $wsheet;
        $self->{SheetCount} += 1;

}

foreach my $sheet (@{$self->{Worksheet}}) {

my $member_sheet = $zip->memberNamed("xl/$sheet->{path}") or next;

my ($row, $col);

my $parsing_v_tag = 0;
        my $s    = 0;
        my $s2   = 0;
        my $sty  = 0;
        foreach ($member_sheet->contents =~ /(\<.*?\/?\>|.*?(?=\<))/g) {
            if (/^\<c\s*.*?\s*r=\"([A-Z])([A-Z]?)(\d+)\"/) {

($row, $col) = __decode_cell_name($1, $2, $3);

$s   = m/t=\"s\"/      ? 1  : 0;
                $s2  = m/t=\"str\"/    ? 1  : 0;
                $sty = m/s="([0-9]+)"/ ? $1 : 0;

} elsif (/^<v>/) {
                $parsing_v_tag = 1;
            } elsif (/^<\/v>/) {
                $parsing_v_tag = 0;
            } elsif (length($_) && $parsing_v_tag) {
                my $v = $s ? $shared_info->{shared_strings}->[$_] : $_;

if ($v eq "</c>") {
                    $v = "";
                }
                my $type      = "Text";
                my $thisstyle = "";

if (not($s) && not($s2)) {
                    $type = "Numeric";

if (defined $sty && defined $shared_info->{styles}->[$sty]) {
                        $thisstyle = $shared_info->{style_info}->{$shared_info->{styles}->[$sty]};
                        if ($thisstyle =~ /\b(mmm|m|d|yy|h|hh|mm|ss)\b/) {
                            $type = "Date";
                        }
                    }
                }

$sheet->{MaxRow} = $row if $sheet->{MaxRow} < $row;
                $sheet->{MaxCol} = $col if $sheet->{MaxCol} < $col;
                $sheet->{MinRow} = $row if $sheet->{MinRow} > $row;
                $sheet->{MinCol} = $col if $sheet->{MinCol} > $col;

if ($v =~ /(.*)E\-(.*)/gsm && $type eq "Numeric") {
                    $v = $1 / (10**$2);    # this handles scientific notation for very small numbers
                }

my $cell = Spreadsheet::ParseExcel::Cell->new(
                    Val    => $v,
                    Format => $thisstyle,
                    Type   => $type
                );

$cell->{_Value} = $self->{FmtClass}->ValFmt($cell, $self);
                if ($type eq "Date") {
                    if ($v < 1) {    #then this is Excel time field
                        $cell->{Type} = "Text";
                    }
                    $cell->{Val}  = $cell->{_Value};
                }
                $sheet->{Cells}[$row][$col] = $cell;
            }
        }

$sheet->{MinRow} = 0 if $sheet->{MinRow} > $sheet->{MaxRow};
        $sheet->{MinCol} = 0 if $sheet->{MinCol} > $sheet->{MaxCol};

}

return $self;
}

# Convert cell name in the format AA1 to a row and column number.

sub __decode_cell_name {
    my ($letter1, $letter2, $digits) = @_;

my $col = ord($letter1) - 65;

if ($letter2) {
        $col++;
        $col *= 26;
        $col += (ord($letter2) - 65);
    }

my $row = $digits - 1;

return ($row, $col);
}

sub __load_shared_strings {
    my ($zip, $converter) = @_;

my $member_shared_strings = $zip->memberNamed('xl/sharedStrings.xml');

my @shared_strings = ();

if ($member_shared_strings) {

my $mstr = $member_shared_strings->contents;
        $mstr =~ s/<t\/>/<t><\/t>/gsm;    # this handles an empty t tag in the xml <t/>
        foreach my $si ($mstr =~ /<si.*?>(.*?)<\/si/gsm) {
            my $str;
            foreach my $t ($si =~ /<t.*?>(.*?)<\/t/gsm) {
                $t = $converter->convert($t) if defined $converter;
                $str .= $t;
            }
            push @shared_strings, $str;
        }
    }

return \@shared_strings;
}

sub __load_styles {
    my ($zip) = @_;

my $member_styles = $zip->memberNamed('xl/styles.xml');

my @styles = ();
    my %style_info = ();

if ($member_styles) {
        my $formatter = Spreadsheet::XLSX::Fmt2007->new();

foreach my $t ($member_styles->contents =~ /xf\ numFmtId="([^"]*)"(?!.*\/cellStyleXfs)/gsm) {    #"
            push @styles, $t;
        }

my $default = $1 || '';
    
        foreach my $t1 (@styles) {
            $member_styles->contents =~ /numFmtId="$t1" formatCode="([^"]*)/;
            my $formatCode = $1 || '';
            if ($formatCode eq $default || not($formatCode)) {
                if ($t1 == 9 || $t1 == 10) {
                    $formatCode = '0.00000%';
                } elsif ($t1 == 14) {
                    $formatCode = 'yyyy-mm-dd';
                } else {
                    $formatCode = '';
                }
#                $formatCode = $formatter->FmtStringDef($t1);
            }
            $style_info{$t1} = $formatCode;
            $default = $1 || '';
        }

}
    return (\@styles, \%style_info);
}

sub __load_rels {
    my ($zip) = @_;

my $member_rels = $zip->memberNamed('xl/_rels/workbook.xml.rels') or die("xl/_rels/workbook.xml.rels not found in this zip\n");

my %rels = ();

foreach ($member_rels->contents =~ /\<Relationship (.*?)\/?\>/g) {

my ($id, $target);
        ($id) = /Id="(.*?)"/;
        ($target) = /Target="(.*?)"/;
 
	    if (defined $id and defined $target) {	
    		$rels{$id} = $target;
        }

}

return \%rels;
}

sub __load_zip {
    my ($filename) = @_;

my $zip = Archive::Zip->new();

if (ref $filename) {
        $zip->readFromFileHandle($filename) == Archive::Zip::AZ_OK or die("Cannot open data as Zip archive");
    } else {
        $zip->read($filename) == Archive::Zip::AZ_OK or die("Cannot open $filename as Zip archive");
    }
    
    return $zip;
}

1;
__END__

=head1 NAME

Spreadsheet::XLSX - Perl extension for reading MS Excel 2007 files;

=head1 SYNOPSIS

use Text::Iconv;
    my $converter = Text::Iconv->new("utf-8", "windows-1251");
    
    # Text::Iconv is not really required.
    # This can be any object with the convert method. Or nothing.
    
    use Spreadsheet::XLSX;
    
    my $excel = Spreadsheet::XLSX->new('test.xlsx', $converter);
    
    foreach my $sheet (@{$excel->{Worksheet}}) {
    
        printf("Sheet: %s\n", $sheet->{Name});
        
        $sheet->{MaxRow} ||= $sheet->{MinRow};
        
        foreach my $row ($sheet->{MinRow} .. $sheet->{MaxRow}) {
             
            $sheet->{MaxCol} ||= $sheet->{MinCol};
            
            foreach my $col ($sheet->{MinCol} ..  $sheet->{MaxCol}) {
            
                my $cell = $sheet->{Cells}[$row][$col];
        
                if ($cell) {
                    printf("( %s , %s ) => %s\n", $row, $col, $cell->{Val});
                }
        
            }
        
        }
    
    }

=head1 DESCRIPTION

This module is a (quick and dirty) emulation of L<Spreadsheet::ParseExcel> for 
Excel 2007 (.xlsx) file format.  It supports styles and many of Excel's quirks, 
but not all.  It populates the classes from L<Spreadsheet::ParseExcel> for interoperability; 
including Workbook, Worksheet, and Cell.

=head1 SEE ALSO

=over 2

=item L<Spreadsheet::ParseXLSX>

This module has some serious issues with the way it uses regexs for parsing the XML.
I would strongly encourage switching to L<Spreadsheet::ParseXLSX> which takes a more reliable approach.

=item L<Text::CSV_XS>, L<Text::CSV_PP>

=item L<Spreadsheet::ParseExcel>

=item L<Spreadsheet::ReadSXC>

=item L<Spreadsheet::BasicRead>

for xlscat likewise functionality (Excel only)

=item Spreadsheet::ConvertAA

for an alternative set of C<cell2cr()> / C<cr2cell()> pair

=item L<Spreadsheet::Perl>

offers a Pure Perl implementation of a
spreadsheet engine. Users that want this format to be supported in
L<Spreadsheet::Read> are hereby motivated to offer patches. It's not high
on my todo-list.

=item xls2csv

L<https://metacpan.org/release/KEN/xls2csv-1.07> offers an alternative for my C<xlscat -c>,
in the xls2csv tool, but this tool focusses on character encoding
transparency, and requires some other modules.

=item L<Spreadsheet::Read>

read the data from a spreadsheet (interface module)

=back

=head1 AUTHOR

Dmitry Ovsyanko, E<lt>do@eludia.ruE<gt>, http://eludia.ru/wiki/

Patches by:

Steve Simms
	Joerg Meltzer
	Loreyna Yeung	
	Rob Polocz
	Gregor Herrmann
	H.Merijn Brand
	endacoe
	Pat Mariani
	Sergey Pushkin
	
=head1 ACKNOWLEDGEMENTS

Thanks to TrackVia Inc. (http://www.trackvia.com) for paying for Rob Polocz working time.

=head1 COPYRIGHT AND LICENSE

This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.8.8 or,
at your option, any later version of Perl 5 you may have available.

=cut

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2023-08-25 11:53:13
..	dir	-	root/root	0755	2023-08-25 12:05:20
ParseExcel	dir	-	root/root	0755	2023-08-25 11:53:01
WriteExcel	dir	-	root/root	0755	2023-08-25 11:52:55
XLSX	dir	-	root/root	0755	2023-08-25 11:53:13
ParseExcel.pm	text/plain	105.25 KB	root/root	0644	2011-04-06 06:53:57
WriteExcel.pm	text/plain	219.55 KB	root/root	0644	2013-11-07 12:22:30
XLSX.pm	text/plain	10.72 KB	root/root	0644	2021-11-03 08:34:23

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