XML-Parser for perl - How to work in windows environment.: perl, xml, parser, windows

XML-Parser for perl - How to work in windows environment.

How to download and set upthe XML::parser module. I am working in Windows 98 environment and using Active perl 5. Can any one help me by giving guidelines for Download and setup the module for windows environment. If it is not possible for windows environment, how can I download for UNIX environment?

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Here's a very bare-bones example. But it should give you some idea.

Assuming the password file is in this format:

<passwords>
<user>
<name>happy</name>
<pass>sad</pass>
</user>
<user>
<name>dopey</name>
<pass>smart</pass>
</user>
<user>
<name>doc</name>
<pass>patient</pass>
</user>
<user>
<name>sneezy</name>
<pass>chirpy</pass>
</user>
<user>
<name>bashful</name>
<pass>noway</pass>
</user>
</passwords>

Here's the script. Run it with three arguments: password file name, user name and password to check for.

#!/usr/local/bin/perl -w

use XML::Parser;

my ($file, $input_user, $input_pass) = @ARGV;

$xp = new XML::Parser(Handlers => {Start => \&start_handler,
End => \&end_handler,
Char => \&char_handler});

die "can't create XML::Parser object; $!\n"
unless $xp;

my $found = undef;
$xp->parsefile($file);

if ($found) {
print "Welcome, $input_user!\n";
} else {
print "Sorry, $input_user!\n";
}

sub start_handler
{
my ($xp, $elem) = @_;

# print "Start: $elem\n";
if ($elem eq 'name') {
$user_seen = 1;
} elsif ($elem eq 'pass') {
$pass_seen = 1;
}
}

sub end_handler
{
my ($xp, $elem) = @_;

# print "End: $elem\n";
if ($elem eq 'name') {
$user_seen = 0;
} elsif ($elem eq 'pass') {
$pass_seen = 0;
}
}

sub char_handler
{
my ($xp, $str) = @_;

# print " Value: $str\n";
if ($user_seen) {
$curr_user = $str;
} elsif ($pass_seen) {
$curr_pass = $str;
check_pass($curr_user, $curr_pass)
unless ($found);
}
}

sub check_pass
{
my ($user, $pass) = @_;

# print "Checking $user/$pass against $input_user/$input_pass ...\n";
$found = $user eq $input_user and $pass eq $input_pass;
}

Hope that helps.

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XML-Parser for perl - How to work in windows environment.

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perl

xml

parser

windows

Perl Programming Language

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