Hi glennpm,
Whatever else you do (and a HEREDOC is perfectly fine for generating the HTML, as is Template Toolkit), the one thing you have to do differently with CGI is print headers, followed by at least a single blank line.
For example:
#!/usr/bin/perl
use strict;
use warnings;
# CGI headers (note two newlines, one for a blank line)
print "Content-type: text/html\n\n";
# Now anything else you do is HTML ...
print "<body style='background:cyan'>\n";
print " <center>\n";
print " <h1>Hello world!</h1>\n";
print " </center>\n";
print "</body>\n";
BTW, another style I've gotten in the habit of in place of HEREDOCS is to quote a block of text with qq{ ... }, putting colons ':' at the beginning of each line for visual ease of reading, and finally reformat the text to remove the colons and print it out. For example:
# CGI headers (note two newlines, one for a blank line)
print "Content-type: text/html\n\n";
# Another way to format HTML
my $text = qq{
:<body style="background:cyan">
: <center>
: <h1> Hello world! </1>
: </center>
:</body>
};
output($text);
# Subroutines
sub output {
my ($text) = @_;
# Reformat the HTML text (remove leading colons ':')
$text =~ s/(^\s+:)|((?<=\n)\s+:)|(\s+$)//g;
# And output it
print $text;
}
say
substr+lc crypt(qw $i3 SI$),4,5
| 