modules/Output.pm

   1 package Output;
   2
   3 #
   4 # Dev-Editor - Module Output
   5 #
   6 # HTML generating routines
   7 #
   8 # Author:        Patrick Canterino <patrick@patshaping.de>
   9 # Last modified: 2004-11-26
  10 #
  11
  12 use strict;
  13
  14 use vars qw(@EXPORT);
  15
  16 use CGI qw(header);
  17 use Tool;
  18
  19 use HTML::Entities;
  20 use Template;
  21
  22 ### Export ###
  23
  24 use base qw(Exporter);
  25
  26 @EXPORT = qw(error_template
  27              error
  28              abort);
  29
  30 my $tpl_error;
  31
  32 # error_template()
  33 #
  34 # Set the path to the template file used for error messages
  35 # (I'm lazy...)
  36 #
  37 # Params: Template file
  38
  39 sub error_template($)
  40 {
  41  $tpl_error = shift;
  42 }
  43
  44 # error()
  45 #
  46 # Format an error message
  47 #
  48 # Params: 1. Error message
  49 #         2. Display a link to this path at the bottom of the page (optional)
  50 #         3. Hash reference: Template variables (optional)
  51 #
  52 # Return: Formatted message (Scalar Reference)
  53
  54 sub error($;$$)
  55 {
  56  my ($message,$path,$vars) = @_;
  57
  58  my $tpl = new Template;
  59  $tpl->read_file($tpl_error);
  60
  61  $tpl->fillin("ERROR",$message);
  62  $tpl->fillin("BACK",$path);
  63  $tpl->fillin("SCRIPT",encode_entities($ENV{'SCRIPT_NAME'}));
  64
  65  $tpl->parse_if_block("dir",defined $path);
  66
  67  if(ref($vars) eq "HASH")
  68  {
  69   while(my ($key,$value) = each(%$vars))
  70   {
  71    $tpl->fillin($key,$value);
  72   }
  73  }
  74
  75  my $output = header(-type => "text/html");
  76  $output   .= $tpl->get_template;
  77
  78  return \$output;
  79 }
  80
  81 # abort()
  82 #
  83 # Print an error message and exit script
  84 # ^^^^^
  85 #
  86 # Params: 1. Error message
  87 #         2. Display a link to this path at the bottom of the page (optional)
  88 #         3. Hash reference: Template variables (optional)
  89
  90 sub abort($;$$)
  91 {
  92  my $output = error(shift,shift,shift);
  93  print $$output;
  94  exit;
  95 }
  96
  97 # it's true, baby ;-)
  98
  99 1;
 100
 101 #
 102 ### End ###