Now both empty search strings and 1 letter search strings works fine in

the glossary. Terms are hilighted properly (but 1 letter terms, because
it's a hilight limitation). Bug 4274.
(http://moodle.org/bugs/bug.php?op=show&bugid=4274)

mod/glossary/sql.php

@@ -188,9 +188,7 @@
             $searchterms = explode(" ",$hook);
 
             foreach ($searchterms as $searchterm) {
-                if (strlen($searchterm) < 2) {
-                    continue;
-                }
+
                 if ($conceptsearch) {
                     $conceptsearch .= " AND ";
                 }

mod/glossary/view.php

@@ -124,15 +124,9 @@
     case 'search': /// looking for terms containing certain word(s)
         $tab = GLOSSARY_STANDARD_VIEW;
 
-        $searchterms = trim(strip_tags($hook));
+        //Clean a bit the search string
+        $hook = trim(strip_tags($hook));
 
-        $searchterms = explode(' ', $searchterms); // Search for words independently
-        foreach ($searchterms as $key => $searchterm) {
-            if (strlen($searchterm) < 2) {
-                unset($searchterms[$key]);
-            }
-        }
-        $hook = trim(implode(' ', $searchterms));
     break;
 
     case 'entry':  /// Looking for a certain entry id
@@ -369,6 +363,10 @@
                     } else {
                         $searchterms[$key] = preg_replace('/^\+/','',$searchterm);
                     }
+                    //Avoid highlight of <2 len strings. It's a well known hilight limitation.
+                    if (strlen($searchterm) < 2) {
+                        unset($searchterms[$key]);
+                    }
                 }
                 $strippedsearch = implode(' ', $searchterms);    // Rebuild the string
                 $entry->highlight = $strippedsearch;