damian1301 ends it here

When run WITHOUT CGI::Carp, it gives clearer errors. This is a revised version of your script.

#!/usr/bin/perl -w
#use CGI::Carp('fatalsToBrowser');
use Carp;
use diagnostics;
use strict;
use warnings;

my @pages;
my @xfilenames; 
my @filenames;
my @xtitles; 
my @titles;
my @xheadings; 
my @headings;
my @xstuff; 
my $xstuff=""; 
my @stuff;
my @xtemplate; 
my $xtemplate=""; 
my @template;


open(PAGES, "<pages.txt") || die $!;
@pages = <PAGES>;
close(PAGES);

foreach $_ (@pages) {
    if (m/^\*{4}filename.ext\*{4}/) {
        push(@xfilenames, $_)
        }
    elsif (m/^\*{4}title\*{4}/) {
        push(@xtitles, $_)
        }
    elsif (m/^\*{4}heading\*{4}/) {
        push(@xheadings, $_)
        }
    else {    
        push(@xstuff, $_)
        }
    }

foreach(@xfilenames) {
    s/^\*{4}filename.ext\*{4}//;
    chomp $_;
    push @filenames, $_;
    }
foreach(@xtitles) {
    s/^\*{4}title\*{4}//;
    chomp $_;
    push @titles, $_;
    }
foreach $_ (@xheadings) {
    s/^\*{4}heading\*{4}//;
    chomp $_;
    push @headings, $_;
    }

$xstuff = join "", @xstuff;
@stuff = $xstuff =~ /\*{4}stuff\*{4}(.*?)\*{4}endstuff\*{4}/sg;

open(TEMPLATE, "<template.html") || die $!;
@xtemplate = <TEMPLATE>;
close (TEMPLATE);

$xtemplate = join"", @xtemplate;
@template = $xtemplate =~ /^(.*?)\*{4}filename.ext\*{4}/sg;
push (@template, $xtemplate =~ /\*{4}filename.ext\*{4}(.*?)\*{4}title\
+*{4}/sg);
push (@template, $xtemplate =~ /\*{4}title\*{4}(.*?)\*{4}headings\*{4}
+/sg);
push (@template, $xtemplate =~ /\*{4}headings\*{4}(.*?)/sg);

for (my $i=0; $i < (@filenames); $i++) {
    open(FILE, ">$filenames[$i]") || die $!;
    print FILE qq($template[0] $titles[$i] $template[1] $headings[$i] 
+$template[2] $stuff[$i] $template[3]);
    close(FILE);
    }

print "Content-type:text/html\n\n";
print <<EndHTML;

<!DOCTYPE HTML PUBLIC
"-//W3C//DTD HTML 4.0 Transisional//EN"
"http://www.w3.org/TR/REC-html40/loose.dtd">
<html>

<head>

<title>create</title>
</head>
<body>
EndHTML

foreach (@filenames) {
    print " <p>Name:$_</p>";
    }
print "<hr />";
foreach (@titles) {
    print "<p>Titles:$_</p>";
    }
print "<hr />";
foreach (@headings) {
    print "<p>Headings:$_</p>";
    }
print "<hr />";
foreach (@stuff) {
    print "<p>stuff:$_</p>";
    }
print <<EndHTML;
</body>
</html>
EndHTML

[download]
NOTE that ALL errors had to do with not declaring your variables or misspeeling them. Be even more careful next time with your typing and spare us the time :).
UPDATE: Thanks bikeNomad - I just caught that myself :) 

$_.=($=+(6<<1));print(chr(my$a=$_));$^H=$_+$_;$_=$^H;
print chr($_-39); # Easy but its ok.

[download]

In reply to Re: errors revisited by damian1301
in thread errors revisited by maddfisherman

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


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