Hello,

I'm using XML::Simple to save the content of some hashes uesd by a CGI Perl application. I'm on a XP OS ($^O = MSWin32). But the same application will need to run under Linux as well.

Basically, I have "sessions" with parameters acquired from HTML pages (textfields, filefields, checkboxes, ...) and other processes, that I manage through hashes. At the end of one session, I save these hashes with XMLout. Then I can read the information with XMLin to restore previous sessions.

Everything works fine with this module, until I save the content of a textfield that has multiple lines.

Say I insert in the textbox some data like this, with a carriage return from the keyboard at the end of each line:

1 3 station_a.txt
1 23 station_b.txt
1 23 station_c.txt
...

[download]
I get content of the textbox with something like:

$meteo{data} = $q->param('data');
then I save the hash with:
XMLout(\%meteo,outputfile=>$myroot.'/meteo.xml');

The meteo.xml file, viewed with vi will will be:

<opt data="1 3 station_a.txt^M
1 23 station_b.txt^M
1 23 station_c.txt^M
" />

[download]
If I later read the file into the hash with:

%meteo = %{ XMLin($myroot.'/meteo.xml') };

and I initialise the textfield, then carriage return is lost and the data in the textfield are all on the same line:

1 3 station_a.txt 1 23 station_b.txt 1 23 station_c.txt ...

I've tried with

$meteo{data} =~ s/\015?\012/\n/g; # PAG. 623 of Programming Perl

but it does nothing. So I guess that XMLin removes both ^M and newline before filling $meteo{data}.

Does anybody can suggest me how to deal with this?

Thank you in advance.
Roberto

In reply to XML::Simple and newlines by rbi

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