--- loncom/interface/lonrelrequtils.pm	2014/06/13 01:48:26	1.2
+++ loncom/interface/lonrelrequtils.pm	2015/04/28 13:20:41	1.3
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 # The LearningOnline Network
 #
-# $Id: lonrelrequtils.pm,v 1.2 2014/06/13 01:48:26 raeburn Exp $
+# $Id: lonrelrequtils.pm,v 1.3 2015/04/28 13:20:41 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -84,7 +84,7 @@ Inputs: 5
 
 Returns major version and minor version requirements for a course,
 based on parameters in use in the course. (Parameters which have
-version requirements are listed in /home/httpd/lonTabs/releaseslist.xml
+version requirements are listed in /home/httpd/lonTabs/releaseslist.xml).
 
 Inputs: 2
 
@@ -265,20 +265,31 @@ use LONCAPA qw(:DEFAULT :match);
 
 sub init_global_hashes {
     %Apache::lonrelrequtils::checkparms = ();
+    %Apache::lonrelrequtils::checkparmsmatch = ();
     %Apache::lonrelrequtils::checkresponsetypes = ();
     %Apache::lonrelrequtils::checkcrstypes = ();
     %Apache::lonrelrequtils::anonsurvey = ();
     %Apache::lonrelrequtils::randomizetry = ();
 
     foreach my $key (keys(%Apache::lonnet::needsrelease)) {
-        my ($item,$name,$value) = split(/:/,$key);
+        my ($item,$name,$value,$valuematch) = split(/:/,$key);
         if ($item eq 'parameter') {
-            if (ref($Apache::lonrelrequtils::checkparms{$name}) eq 'ARRAY') {
-                unless(grep(/^\Q$name\E$/,@{$Apache::lonrelrequtils::checkparms{$name}})) {
+            if ($value ne '') {
+                if (ref($Apache::lonrelrequtils::checkparms{$name}) eq 'ARRAY') {
+                    unless(grep(/^\Q$name\E$/,@{$Apache::lonrelrequtils::checkparms{$name}})) {
+                        push(@{$Apache::lonrelrequtils::checkparms{$name}},$value);
+                    }
+                } else {
                     push(@{$Apache::lonrelrequtils::checkparms{$name}},$value);
                 }
-            } else {
-                push(@{$Apache::lonrelrequtils::checkparms{$name}},$value);
+            } elsif ($valuematch ne '') {
+                if (ref($Apache::lonrelrequtils::checkparmsmatch{$name}) eq 'ARRAY') {
+                    unless(grep(/^\Q$name\E$/,@{$Apache::lonrelrequtils::checkparmsmatch{$name}})) {
+                        push(@{$Apache::lonrelrequtils::checkparmsmatch{$name}},$valuematch);
+                    }
+                } else {
+                    push(@{$Apache::lonrelrequtils::checkparmsmatch{$name}},$valuematch);
+                }
             }
         } elsif ($item eq 'resourcetag') {
             if ($name eq 'responsetype') {
@@ -350,12 +361,37 @@ sub parameter_constraints {
                             }
                         }
                         if (grep(/^\Q$value\E$/,@{$Apache::lonrelrequtils::checkparms{$item}})) {
-                            my ($major,$minor) = split(/\./,$Apache::lonnet::needsrelease{'parameter:'.$item.':'.$value});
+                            my ($major,$minor) = 
+                                split(/\./,$Apache::lonnet::needsrelease{'parameter:'.$item.':'.$value.':'});
                             ($reqdmajor,$reqdminor) =
                                 &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
                         }
                     }
                 }
+            }
+            foreach my $item (keys(%Apache::lonrelrequtils::checkparmsmatch)) { 
+                if ($key =~ /(\Q$item\E)$/) {
+                    if (ref($Apache::lonrelrequtils::checkparms{$item}) eq 'ARRAY') {
+                        my $value = $resourcedata->{$key};
+                        foreach my $entry (@{$Apache::lonrelrequtils::checkparms{$item}}) {
+                            my $regexp;
+                            if (($item eq 'lenient') && ($entry eq 'weighted')) {
+                                $regexp = '^[\-\.\d]+,[\-\.\d]+,[\-\.\d]+,[\-\.\d]+$';      
+                            } elsif (($item eq 'acc') && ($entry eq '_denyfrom_')) {
+                                $regexp = '\!';
+                            }
+                            if ($regexp ne '') {
+                                if ($value =~ /$regexp/) {
+                                    my ($major,$minor) =
+                                        split(/\./,$Apache::lonnet::needsrelease{'parameter:'.$item.'::'.$entry});
+                                    ($reqdmajor,$reqdminor) =
+                                        &update_reqd_loncaparev($major,$minor,$reqdmajor,$reqdminor);
+                                    last;
+                                }
+                            }
+                        }
+                    }
+                }
             }
         }
     }