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fabiano petroneFlag for Italy asked on

little script modification

I use ActivePerl on WIN7.
I've found a useful script for converting ANSI to UTF8 (call it utf8.pl):

use File::Slurp;
use Encode;


open (OUT, ">c:\\dottorandiUTF8.xml");
print OUT encode('utf8', $file_con);
close OUT;

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but I'd like to use NOT fixed paths to the file to convert (like c:\\dottorandi.xml) but the STDIN and STDOUT, so I can call the script from the command line like:
perl utf8.pl<fileANSI.xml>fileUTF8.xml

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I've try to use:
open (OUT, <STDOUT>);

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but without luck.
Where's my error?

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Last Comment
Dave Cross

8/22/2022 - Mon

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fabiano petrone

Hi, noci
Really Great Thnaks for your quick great solution! :=)
Take Care,
David Favor

For small files noci's approach will work.

If you have large files or require doing some sort of inline transform on records, use something like this...

Note: I'm just going to type this off the top of my head, so there may be syntax errors to fix.

#!/usr/bin/env perl

use strict;
use warnings;
use Carp qw/confess/;

my $ofile = "out-file-name";

my $ifile = shift(@ARGV) || "-";

open(my $in,$ifile) || confess "Unable to open($ifile): $!";
open(my $out,">$ofile") || confess "Unable to open($ofile): $!";

binmode($out, ":utf8");

while (my $rec = <$in>) {
   # Transform(s) occur here...
   print $out $rec;

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Dave Cross

No need to slurp all of the file in one go. Process it a line at a time,


use strict;
use warnings;

binmode($out, ':utf8');

print while <>;

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This reads from STDIN and writes to STDOUT.
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