creating empty utf8 file

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

hai monks,
I tried with File::BOM , inorder to create the utf8 file with BOM is automatically written in that file.
The BOM is written as part of the first print command on the handle, so if you don't print anything to the handle, you won't get a BOM.
But i want to create an empty utf8 file with BOM ,
Is there any way to create the BOM other than doing it manually

use File::BOM;
open RET,'>:via(File::BOM)',$filename ;
#print RET "print BOM";
close RET;
[download]

How to create empty file with BOM??

Comment on creating empty utf8 file Download Code

Replies are listed 'Best First'.
Re: creating empty utf8 file by GrandFather (Saint) on Apr 12, 2006 at 09:45 UTC
If you can use a different module then: `use strict; use warnings; use UTF8BOM; my $filename = 'delme.txt'; open outFile, '>', $filename; close outFile; UTF8BOM->insert_into_file ($filename);` [download] does the trick. See UTF8BOM. DWIM is Perl's answer to Gödel	[reply] [d/l]
Re: creating empty utf8 file by borisz (Canon) on Apr 12, 2006 at 11:23 UTC
`open my $fh, '>', 'filename' or die $!; print $fh "\xef\xbb\xbf"; close $fh;` [download] Boris	[reply] [d/l]
Re: creating empty utf8 file by bart (Canon) on Apr 12, 2006 at 12:27 UTC
The BOM is written as part of the first print command on the handle, so if you don't print anything to the handle, you won't get a BOM. What happens if you print an empty string? `print RET "";` [download]	[reply] [d/l]
Re: creating empty utf8 file by moklevat (Priest) on Apr 12, 2006 at 14:23 UTC
Beause UTF8 is byte order independent I'm not certain why you want to include a BOM (unless it is simply to have as nearly empty a file as possible with the proper encoding). Having said that, the following will create a file that contains only the UTF8 representation of the byte order mark (\xEF\xBB\xBF). I threw in a newline for good measure, which you can exclude as necessary for your application. `#!/usr/bin/perl use warnings; use strict; open OUTFILE, ">:utf8", "./myutf8file" or die $!; print OUTFILE "\xEF\xBB\xBF\n"; close OUTFILE;` [download] Update:I somehow missed borisz's reply above, which does the same thing. I wish I could claim simultaneous posting, but it looks like his was about 3 hours before mine. :-p	[reply] [d/l]
Re: creating empty utf8 file by Anonymous Monk on Apr 12, 2006 at 09:50 UTC
Thanks GrandFather, do we need to use utf8BOM. No other way to do that?	[reply]