Re^3: how to update an xml file by read data from csv file

[bitingduck]

Here's a solution that uses XML::TreeBuilder (which uses XML::Element methods as well). It seemed easier than trying to build it up from print statements and regex replacements.

One maybe major caveat: your example input file isn't valid XML-- the two "container" tags don't get closed. I took the liberty of assuming (maybe incorrectly) that they should get closed and that you want valid XML.

Here's the code:

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

use Text::CSV;
use XML::TreeBuilder;
use Data::Dumper;

my $xmlbase='original.xml';
my $paramsfile = 'params.csv';

# the list of tags filled from the csv file
my @taglist=qw(name protocol host commandline);

# this is the part that repeats, so we break it out separately
# the tags that get filled from the CSV file are left empty
my $connection= <<END
        <connection type="PuTTY" name="WSSS">
          <connection_info>
            <name></name>
            <protocol></protocol>
            <host></host>
            <port>22</port>
            <session>Default Settings</session>
            <commandline></commandline>
            <description />
          </connection_info>
          <login>
            <login />
            <password />
            <prompt />
          </login>
          <timeout>
            <connectiontimeout>1000</connectiontimeout>
            <logintimeout>750</logintimeout>
            <passwordtimeout>750</passwordtimeout>
            <commandtimeout>750</commandtimeout>
          </timeout>
          <command>
            <command1 />
            <command2 />
            <command3 />
            <command4 />
            <command5 />
          </command>
          <options>
            <loginmacro>False</loginmacro>
            <postcommands>False</postcommands>
            <endlinechar>10</endlinechar>
          </options>
        </connection>
END
;

#this is the wrapper
my $config= <<END
<?xml version="1.0" encoding="UTF-8"?>
<!-- The following lines can be modified at your own risks.  -->
<configuration version="0.2.1.4" savepassword="True">
  <root type="database" name="WSSS" expanded="True">
    <container type="folder" name="CM" expanded="True">
      <container type="folder" name="1-AD/M" expanded="True">
      </container>
    </container>
  </root>
</configuration>
END
;

#start an xml structure with the outer wrapper
my $tree=XML::TreeBuilder->new(); 
$tree->parse($config);

# find the insert location
my $container=$tree->look_down("_tag"=>"container", "name"=>"1-AD/M");
+ 
my $csv=Text::CSV->new(); 
open my $fh, "<:encoding(utf8)", $paramsfile or die "$paramsfile: $!";
# loop through the lines of the CSV and copy the connection structure 
+into
# the wrapper with the updated values
while(my $row=$csv->getline($fh)){
    my $contree=XML::TreeBuilder->new();  #make an xml structure of th
+e connection
    $contree->parse($connection);
    $container->push_content($contree);   #insert it into the wrapper
    $contree->attr('name',$row->[0]);     #set the name attribute
    $container->push_content("\n       ");  #make it a little prettier
    my $index=0;
    for my $tagname(@taglist){            #loop through the columns
        my $tag=$contree->look_down('_tag'=> $tagname);
        $tag->push_content($row->[$index++]);
    }  
    
}

print '<?xml version="1.0" encoding="UTF-8"?>'."\n";
print $tree->as_XML();

And here's the output:

$ perl puttyconfig.pl 
<?xml version="1.0" encoding="UTF-8"?>
<configuration savepassword="True" version="0.2.1.4">
  <root expanded="True" name="WSSS" type="database">
    <container expanded="True" name="CM" type="folder">
      <container expanded="True" name="1-AD/M" type="folder">
      <connection name="WSSSS" type="PuTTY">
          <connection_info>
            <name>WSSSS</name>
            <protocol>SSH</protocol>
            <host>103.243.543.233</host>
            <port>22</port>
            <session>Default Settings</session>
            <commandline>erted</commandline>
            <description></description>
          </connection_info>
          <login>
            <login></login>
            <password></password>
            <prompt></prompt>
          </login>
          <timeout>
            <connectiontimeout>1000</connectiontimeout>
            <logintimeout>750</logintimeout>
            <passwordtimeout>750</passwordtimeout>
            <commandtimeout>750</commandtimeout>
          </timeout>
          <command>
            <command1></command1>
            <command2></command2>
            <command3></command3>
            <command4></command4>
            <command5></command5>
          </command>
          <options>
            <loginmacro>False</loginmacro>
            <postcommands>False</postcommands>
            <endlinechar>10</endlinechar>
          </options>
        </connection>
       <connection name="AWSA" type="PuTTY">
          <connection_info>
            <name>AWSA</name>
            <protocol>SSH</protocol>
            <host>303.233.542.622</host>
            <port>22</port>
            <session>Default Settings</session>
            <commandline>rrertd</commandline>
            <description></description>
          </connection_info>
          <login>
            <login></login>
            <password></password>
            <prompt></prompt>
          </login>
          <timeout>
            <connectiontimeout>1000</connectiontimeout>
            <logintimeout>750</logintimeout>
            <passwordtimeout>750</passwordtimeout>
            <commandtimeout>750</commandtimeout>
          </timeout>
          <command>
            <command1></command1>
            <command2></command2>
            <command3></command3>
            <command4></command4>
            <command5></command5>
          </command>
          <options>
            <loginmacro>False</loginmacro>
            <postcommands>False</postcommands>
            <endlinechar>10</endlinechar>
          </options>
        </connection>
       </container>
    </container>
  </root>
</configuration>