--- rat/lonpage.pm	2001/11/29 19:23:48	1.29
+++ rat/lonpage.pm	2001/12/17 00:57:59	1.30
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Page Handler
 #
-# $Id: lonpage.pm,v 1.29 2001/11/29 19:23:48 www Exp $
+# $Id: lonpage.pm,v 1.30 2001/12/17 00:57:59 harris41 Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -27,16 +27,22 @@
 #
 # (TeX Content Handler
 #
+# YEAR=2000
 # 05/29/00,05/30 Gerd Kortemeyer)
 # 08/30,08/31,09/06,09/14,09/15,09/16,09/19,09/20,09/21,09/23,
 # 10/02,10/10,10/14,10/16,10/18,10/19,10/31,11/6,11/14,11/16,
+# YEAR=2001
 # 08/13/01,08/30,10/1 Gerd Kortemeyer
+# 12/16 Scott Harrison
+#
+###
 
 package Apache::lonpage;
 
 use strict;
 use Apache::Constants qw(:common :http);
 use Apache::lonnet();
+use Apache::loncommon();
 use Apache::lonxml();
 use HTML::TokeParser;
 use GDBM_File;
@@ -102,7 +108,7 @@ sub tracetable {
        if (defined($hash{'to_'.$rid})) {
 	  my $mincond=1;
           my $next='';
-          map {
+          foreach (split(/\,/,$hash{'to_'.$rid})) {
               my $thiscond=
       &Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}});
               if ($thiscond>=$mincond) {
@@ -113,14 +119,14 @@ sub tracetable {
 		  }
                   if ($thiscond>$mincond) { $mincond=$thiscond; }
 	      }
-          } split(/\,/,$hash{'to_'.$rid});
-          map {
+          }
+          foreach (split(/\,/,$next)) {
               my ($linkid,$condval)=split(/\:/,$_);
               if ($condval>=$mincond) {
                 my $now=&tracetable($sofar,$hash{'goesto_'.$linkid},$beenhere);
                 if ($now>$further) { $further=$now; }
 	      }
-          } split(/\,/,$next);
+          }
 
        }
     }
@@ -174,9 +180,9 @@ sub handler {
                   for ($i=0;$i<=$#rows;$i++) {
 		     if ($rows[$i]) {
                         my @colcont=split(/\&/,$rows[$i]);
-                        map {
+                        foreach (@colcont) {
                            $symbhash{$hash{'src_'.$_}}='';
-		        } @colcont;
+		        }
 		     }
 		  }
                   &Apache::lonnet::symblist($requrl,%symbhash);
@@ -213,24 +219,24 @@ sub handler {
 		      $contents++;
                       my @colcont=split(/\&/,$rows[$i]);
                       $lcm*=($#colcont+1)/euclid($lcm,($#colcont+1));
-                      map {
+                      foreach (@colcont) {
                           my $src=$hash{'src_'.$_};
                           $src=~/\.(\w+)$/;
                           $metalink{$_}=$src.'.meta';
-                          $cellemb{$_}=Apache::lonnet::fileembstyle($1);
+                          $cellemb{$_}=Apache::loncommon::fileembstyle($1);
                           if ($cellemb{$_} eq 'ssi') {
 # --------------------------------------------------------- This is an SSI cell
 			      my $prefix=$_.'_';
                               my %posthash=('request.prefix' => $prefix);
                               if (($ENV{'form.'.$prefix.'submit'}) 
                                || ($ENV{'form.all_submit'})) {
-                               map {
+                               foreach (keys %ENV) {
 				  if ($_=~/^form.$prefix/) {
 				      my $name=$_;
                                       $name=~s/^form.$prefix//;
                                       $posthash{$name}=$ENV{$_};
                                   }
-                               } keys %ENV;
+                               }
 			      }
                               my $output=Apache::lonnet::ssi($src,%posthash);
                               my $parser=HTML::TokeParser->new(\$output);
@@ -296,20 +302,20 @@ sub handler {
 				      s/\<((?:input|select|button|textarea)[^\>]+)name\s*\=\s*[\'\"]*([\w\.\:]+)[\'\"]*([^\>]*)\>/\<$1 name="$prefix$2" $3\>/gsi;
                               }
                               $thisdir=~s/\/[^\/]*$//;
-			      map {
+			      foreach (@rlinks) {
 				  unless (($_=~/^http:\/\//i) ||
                                           ($_=~/^\//)) {
 				      my $newlocation=
 				    &Apache::lonnet::hreflocation($thisdir,$_);
                      $output=~s/(\"|\'|\=\s*)$_(\"|\'|\s|\>)/$1$newlocation$2/;
 				  }
-			      } @rlinks;
+			      }
 # -------------------------------------------------- Deal with Applet codebases
   $output=~s/(\<applet[^\>]+)(codebase\=[^\S\>]+)*([^\>]*)\>/$1.($2?$2:' codebase="'.$thisdir.'"').$3.'>'/gei;
 			      $ssibody{$_}=$output;
 # ---------------------------------------------------------------- End SSI cell
                           }
-                      } @colcont;
+                      }
                      } 
                   }
                   unless ($contents) {
@@ -454,8 +460,105 @@ sub handler {
 1;
 __END__
 
+=head1 NAME
+
+Apache::lonpage - Page Handler
+
+=head1 SYNOPSIS
+
+Invoked by /etc/httpd/conf/srm.conf:
+
+ <LocationMatch "^/res/.*\.page$>
+ SetHandler perl-script
+ PerlHandler Apache::lonpage
+ </LocationMatch>
+
+=head1 INTRODUCTION
+
+This module renders a .page resource.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 HANDLER SUBROUTINE
+
+This routine is called by Apache and mod_perl.
+
+=over 4
+
+=item *
+
+set document type for header only
+
+=item *
+
+tie db file
+
+=item *
+
+render page
+
+=item *
+
+add to symb list
+
+=item *
+
+page parms
+
+=item *
+
+Get SSI output, post parameters
+
+=item *
+
+SSI cell rendering
+
+=item *
+
+Deal with Applet codebases
+
+=item *
+
+Build page
+
+=item *
+
+send headers
+
+=item *
+
+start body
+
+=item *
+
+start form
+
+=item *
+
+start table
+
+=item *
+
+submit element, etc, render page, untie hash
+
+=back
+
+=head1 OTHER SUBROUTINES
+
+=over 4
+
+=item *
+
+euclid() : Euclid's method for determining the greatest common denominator.
+
+=item *
+
+tracetable() : Build page table.
 
+=back
 
+=cut