Re: remove line feed at the end

[hda]

You should write print "$_ "; instead of print "$_\n";

Also, all the replacements within the if structure are not needed if you use "chomp", except one for getting rid of "\". See, for example, the following code:

#!/usr/bin/perl
use strict;
use warnings;
while (<DATA>)  {
chomp;
if($_ !~ /^{/){
    $_ =~ s/\\//gi;
    chomp;
    print "$_ ";
              }
}

__DATA__
{AUTHOR}
author1
staff1
{HEADLINE}
DISPOSABLE DECOR: THE CUTTING EDGE DULLS FAST\
STYLE AT A SPEED
USUALLY ASSOCIATED WITH WARDROBE ITEMS.

produces:

author1 staff1 DISPOSABLE DECOR: THE CUTTING EDGE DULLS FAST STYLE AT A SPEED USUALLY ASSOCIATED WITH WARDROBE ITEMS.

[Anonymous Monk]

#!/usr/bin/perl
use strict;
use warnings;

my $fh;
my $tag;
 my %hash;
my @metadata_tags;
my $flag;

while (<DATA>)  {
    chomp $_;
    if(/^{(.*)}/) {
        $tag = $1;
push(@metadata_tags,$tag);
    } else {
        if($tag eq 'FILE') {
                if(defined($fh)){
                print $fh "</ROOT>";
                close($fh);
                }
 my $filename = $_;
            open($fh, '>', "$filename.xml") or die "$filename: $!";
            print $fh '<?xml version="1.0"?>',"\n";
            print $fh "<ROOT>\n";
            print $fh "<FILE>$filename</FILE>\n";
        } elsif(defined($fh)) {
if($_ ne ''){
if($_ !~ m/^{/){
$_ =~ s/\\//gi;
    chomp;
            print "<$tag>$_</$tag>\n";
 #               }
        }
        }
    }
}
}

__DATA__
{FILE}
sourcetag1
{NUMBER}
00000
11111
{SOURCE}
source1
{KEYWORD}
{AUTHOR}
author1 staff1
{HEADLINE}
DISPOSABLE DECOR: THE CUTTING EDGE DULLS FAST\
STYLE AT A SPEED USUALLY ASSOCIATED WITH WARDROBE ITEMS.
{FILE}
sourcetag2
{NUMBER}
00002
{SOURCE}
sourcenam2
{KEYWORD}
{AUTHOR}
author2 staff2

But this produces output like this

<NUMBER>00000</NUMBER>
<NUMBER>11111</NUMBER>
<SOURCE>source1</SOURCE>
<AUTHOR>author1 staff1</AUTHOR>
<HEADLINE>DISPOSABLE DECOR: THE CUTTING EDGE DULLS FAST</HEADLINE>
<HEADLINE>STYLE AT A SPEED USUALLY ASSOCIATED WITH WARDROBE ITEMS.</HE
+ADLINE>
<NUMBER>00002</NUMBER>
<SOURCE>sourcenam2</SOURCE>
<AUTHOR>author2 staff2</AUTHOR>

Instead of

<NUMBER>00000</NUMBER>
<NUMBER>11111</NUMBER>
<SOURCE>source1</SOURCE>
<AUTHOR>author1 staff1</AUTHOR>
<HEADLINE>DISPOSABLE DECOR: THE CUTTING EDGE DULLS FAST STYLE AT A SPE
+ED USUALLY ASSOCIATED WITH WARDROBE ITEMS.</HEADLINE>
<NUMBER>00002</NUMBER>
<SOURCE>sourcenam2</SOURCE>
<AUTHOR>author2 staff2</AUTHOR>

Please anyone help me

[linuxer]

That's good. Looks like it works as designed.

If you want to do special things when \ appears at the end of a line, then you should recognize it and do special things.

You are only removing it from the line and then go on with the standard action...

Consider something like this:

#!/usr/bin/perl
use strict;
use warnings;

my $output = '';

LINE: while ( my $line = <DATA>)  {

    chomp $line;

    # if line ended with a '\', remove '\' and save line for later out
+put
    if ( $line =~ s/\\$// ) {
        # clean indentation
        $line =~ s/^\s+/ /;
        # save line
        $output .= $line;
        next LINE;
    }
    # we have previous line(s) to consider?
    elsif ( length $output ) {
        # clean indentation
        $line =~ s/^\s+/ /;

        $line = $output . $line;
        $output = '';
    }

    print $line, $/;
}


__DATA__
{FILE}
sourcetag1
{NUMBER}
00000
11111
{SOURCE}
source1
{KEYWORD}
{AUTHOR}
author1 staff1
{HEADLINE}
DISPOSABLE DECOR: THE CUTTING EDGE DULLS FAST\
               STYLE AT A SPEED USUALLY ASSOCIATED WITH WARDROBE ITEMS
+.
{FILE}
sourcetag2
{NUMBER}
00002
{SOURCE}
sourcenam2
{KEYWORD}
{AUTHOR}
author2 staff2
a\
    b\
    c

It's your exercise to combine this with your code ;o)

BTW: why do you use the /i modifier, when replacing spaces, newlines or the backslash?

[Anonymous Monk]

<ROOT> <FILE>sourcetag1</FILE> <NUMBER>00000 11111</NUMBER> <SOURCE>source1</SOURCE> <AUTHOR>author1 staff1</AUTHOR> <HEADLINE>DISPOSABLE DECOR: THE CUTTING EDGE DULLS FASTTYLE AT A SPEED USUALLY ASSOCIATED WITH WARDROBE ITEMS</HEADLINE> </ROOT> Sorry...It is not only for the line which has \ at the end. It should remove all the new line character anything which doesnot match {sometext} at the start. I mergeed the code with the sample which you provided. But it works for the line {HEADLINE} The merged code is below

#!/usr/bin/perl
use strict;
use warnings;

my $output = '';
my $tag;
my $fh;
LINE: while ( my $line = <DATA>)  {
    chomp $line;
    # if line ended with a '\', remove '\' and save line for later out
++put
    if ( $line =~ s/\\$// || $line =~ s/\s$//) {
        # clean indentation
        $line =~ s/^\s+/ /;
        # save line
        $output .= $line;
        next LINE;
    }
    # we have previous line(s) to consider?
    if ( length $output ) {
        # clean indentation
        $line =~ s/^\s+/ /;
        $line = $output . $line;
        $output = '';
    }
  if($line =~ /^{(.*)}/) {
        $tag = $1;
    }else {
        if($tag eq 'FILE') {
                if(defined($fh)){
                print $fh "</ROOT>";
                close($fh);
                }
 my $filename = $line;
            open($fh, '>', "$filename.xml") or die "$filename: $!";
            print $fh '<?xml version="1.0"?>',"\n";
            print $fh "<ROOT>\n";
            print $fh "<FILE>$filename</FILE>\n";
        } elsif(defined($fh)) {
if($line ne ''){
$line =~ s/\\//gi;
            print "<$tag>$line</$tag>\n";
}
}
}
    print $line, $/;
}


__DATA__
{FILE}
sourcetag1
{NUMBER}
00000
11111
{SOURCE}
source1
{KEYWORD}
{AUTHOR}
author1
staff1
{HEADLINE}
DISPOSABLE DECOR: THE CUTTING EDGE DULLS FAST\
TYLE AT A SPEED USUALLY ASSOCIATED WITH WARDROBE ITEMS

{FILE}
sourcetag2
{NUMBER}
00002
{SOURCE}
sourcenam2
{KEYWORD}
{AUTHOR}
author2
staff2