speed up our report about differences between Tx and our git for Cauldron resources

with separation to languages and resources
+ some other improvements

NOTE: there is a different naming convention between Tx and git for some lanuages:
Tx              git
sr@latin    vs. sr@Latn.po
sr@latin    vs. sr@latin.po     is exception in: http://gitweb.mageia.org/software/i18n/system-config-printer/plain/po
uz@Cyrl     vs. uz@cyrillic.po
en_GB       vs. en_gb.po        is exception in: http://gitweb.mageia.org/web/identity/plain/lib/CatDap/I18N

Should we do some cleanup?

1 files changed, 240 insertions, 40 deletions

diff --git a/langs/report_tx_git.php b/langs/report_tx_git.php
index 19761b141..4b8df4828 100644
--- a/langs/report_tx_git.php
+++ b/langs/report_tx_git.php
@@ -42,6 +42,20 @@ if (in_array($c, array('Webpages', 'Documentation', 'Cauldron'))) {
 } else {
     $resource_type = 'Webpages'; // default
 }
+if (isset($_GET['l'])) {
+    $wanted_language   = strip_tags(trim($_GET['l']));
+    $wanted_lang_name  = get_language_name($wanted_language) . " (";
+    $wanted_lang_name .= build_transifex_link($wanted_language, NULL, $resource_type) . ")";
+} else {
+    $wanted_language = NULL;
+}
+// NOTE: there is a different naming convention between Tx and git for some lanuages:
+//      Tx              git
+//      sr@latin    vs. sr@Latn.po
+//      sr@latin    vs. sr@latin.po     exception: http://gitweb.mageia.org/software/i18n/system-config-printer/plain/po
+//      uz@Cyrl     vs. uz@cyrillic.po
+//      en_GB       vs. en_gb.po        exception: http://gitweb.mageia.org/web/identity/plain/lib/CatDap/I18N
+$wanted_resource = (isset($_GET['r']) ? strip_tags(trim($_GET['r'])) : NULL);
 
 if ('Documentation' == $resource_type) {
     $git_resources = array(
@@ -194,9 +208,25 @@ if ('Documentation' == $resource_type) {
             'tx_name'  => 'userdrake2',
             'git_path' => 'http://gitweb.mageia.org/software/userdrake/plain/po',
         ),
-    ); // identity-catdap, indexhtml_about, isodumper
+        array(
+            'pot_name' => 'messages',
+            'tx_name'  => 'identity-catdap',
+            'git_path' => 'http://gitweb.mageia.org/web/identity/plain/lib/CatDap/I18N',
+        ),
+        array(
+            'pot_name' => 'index',
+            'tx_name'  => 'indexhtml_about',
+            'git_path' => 'http://gitweb.mageia.org/software/indexhtml/plain/about/po',
+        ),
+        array(
+            'pot_name' => 'isodumper',
+            'tx_name'  => 'isodumper',
+            'git_path' => 'https://github.com/papoteur-mga/isodumper/raw/master/po',
+        ),
+    );
 }
-
+$isodumper_note  = "Check <a href=\"https://github.com/papoteur-mga/isodumper/raw/master/po\">";
+$isodumper_note .= "isodumper resource manualy</a> as it's in github so it can't be handled properly with this report.";
 
 /**
  * Transifex API implementation in php detailed on http://docs.transifex.com/developer/api/projects
@@ -226,7 +256,8 @@ function tx_call($tx_request, $project = 'project/mageia/')
         $errors['tx_json_error'] = "$error Please reload the page and report this on mailing list if it persist.";
         $tx_result_array = array();
     } else if (FALSE === $tx_result) {
-        $errors['tx_call'] = "API call to Transifex $tx_request failed. Please reload the page and report this on mailing list if it persist.";
+        $error = "API call to Transifex $tx_request failed.";
+        $errors['tx_call'] = "$error Please reload the page and report this on mailing list if it persist.";
         $tx_result_array = array();
     }
     return $tx_result_array;
@@ -246,7 +277,9 @@ function tx_call($tx_request, $project = 'project/mageia/')
 */
 function build_links($git_resource_name, $language_code, $resource_type, $stat_data)
 {
-    $tx_resource_name = str_replace(array('/', 'mageia-welcome'), array('-', 'Mageia%20Welcome'), $git_resource_name);
+    $search_array  = array('/', 'mageia-welcome', 'identity-catdap');
+    $replace_array = array('-', 'Mageia%20Welcome', 'Identity%20(CatDap)');
+    $tx_resource_name = str_replace($search_array, $replace_array, $git_resource_name);
     $locale_name = locale_underscore_to_hyphen($language_code);
     if ('Webpages' == $resource_type) {
         if ('nav' == $git_resource_name) {
@@ -255,10 +288,19 @@ function build_links($git_resource_name, $language_code, $resource_type, $stat_d
             $git_link = sprintf('http://gitweb.mageia.org/web/www/tree/langs/%s/%s.po', $locale_name, $git_resource_name);
         }
     } else {
-        $git_link = sprintf('%s/%s.po', $stat_data['git_path'], $language_code);
+        // fixing exceptions as there is a different naming convention between Tx and git for some lanuages:
+        if ('system-config-printer' == $git_resource_name && 'sr@latin' == $language_code) {
+            $lang_code = 'sr@latin';
+        } else if ('identity-catdap' == $git_resource_name && 'en_GB' == $language_code) {
+            $lang_code = 'en_gb';
+        } else {
+            $tx_array = array('sr@latin', 'uz@Cyrl');
+            $git_array = array('sr@Latn', 'uz@cyrillic');
+            $lang_code = str_replace($tx_array, $git_array, $language_code);
+        }
+        $git_link = sprintf('%s/%s.po', $stat_data['git_path'], $lang_code);
     }
-    $links_and_num  = "<a href=\"http://www.transifex.com/organization/MageiaLinux/dashboard/all_resources/";
-    $links_and_num .= "$language_code/#1/?s=$tx_resource_name&amp;c=$resource_type\">Tx</a>: ";
+    $links_and_num  = build_transifex_link($language_code, 'Tx', $resource_type, $tx_resource_name) . ": ";
     $links_and_num .= $stat_data['tx_untran'];
     $links_and_num .= (0 == $stat_data['tx_untran'] ? ' - full' : '');
     $links_and_num .= ', <a href="' . $git_link . '">git</a>: ';
@@ -269,6 +311,37 @@ function build_links($git_resource_name, $language_code, $resource_type, $stat_d
 }
 
 /**
+ * Build customized Transifex link
+ *
+ * @param string $tx_language_code like 'pt_BR'
+ * @param string $link_name is the visible link name
+ * @param string $tx_category like 'Webpages'
+ * @param string $tx_resource_name like 'page-4'
+ *
+ * @return string customized Transifex link
+*/
+function build_transifex_link($tx_language_code, $link_name = NULL, $tx_category = NULL, $tx_resource_name = NULL)
+{
+    $prefix = "<a href=\"http://www.transifex.com/organization/MageiaLinux/dashboard/all_resources";
+    $transifex_url = "$prefix/$tx_language_code/#1/?";
+    if(!is_null($tx_resource_name)) {
+        $transifex_url .= "s=$tx_resource_name&amp;";
+    }
+    if(!is_null($tx_category)) {
+        $transifex_url .= "c=$tx_category";
+    }
+    $transifex_url .= "\">";
+    if(is_null($link_name)) {
+        $transifex_url .= $tx_language_code;
+    } else {
+        $transifex_url .= $link_name;
+    }
+    $transifex_url .= "</a>";
+
+    return $transifex_url;
+}
+
+/**
  * Generating report about git resources statistics
  *
  * @param array  $language_codes list
@@ -304,8 +377,18 @@ function generating_report($language_codes, $resource_names, $path = NULL, $pot_
             $source_strings      = $stat['source_strings'];
             // unify resource names, navigation is a special exception
             $resource_name = str_replace(array('../_nav/langs/en', 'en/', '.pot'), array('nav', '', ''), $f);
-            // create pt_BR from pt-br and alike to unify languages
-            $web_language_code = locale_hyphen_underscore($l, true);
+            // fixing exceptions as there is a different naming convention between Tx and git for some lanuages:
+            if ('system-config-printer' == $resource_name && 'sr@latin' == $l) {
+                $web_language_code = 'sr@latin';
+            } else if ('identity-catdap' == $resource_name && 'en_gb' == $l) {
+                $web_language_code = 'en_GB';
+            } else {
+                $git_array = array('sr@Latn', 'uz@cyrillic');
+                $tx_array = array('sr@latin', 'uz@Cyrl');
+                // create pt_BR from pt-br and alike to unify languages
+                $web_language_code = locale_hyphen_underscore($l, true);
+                $web_language_code = str_replace($git_array, $tx_array, $web_language_code);
+            }
             $num_of_not_fully_trans = $num_of_fuzzy_or_missing + $num_of_untranslated;
             $report[] = array(
                 'num_of_all_strings'     => $stat['a'],
@@ -337,7 +420,8 @@ function get_language_name($language_code)
         if (is_null($tx_languages_details)) {
             $tx_languages_details = tx_call("languages", '');
         }
-        $key_exists = recursive_array_search($language_code, $tx_languages_details); // is language code in the $tx_languages_details array?
+        // is language code in the $tx_languages_details array?
+        $key_exists = recursive_array_search($language_code, $tx_languages_details);
         if ($key_exists !== FALSE) {
             $language_name = $tx_languages_details[$key_exists]['name'];
         } else {
@@ -351,20 +435,39 @@ function get_language_name($language_code)
 $tx_resources = tx_call("resources");
 
 // create separate array ($tx_resources_info) and add statistics to it from TX
-$tx_resources_info = array();
+$tx_resources_info     = array();
+$tx_cauldron_resources = array();
 foreach ($tx_resources as $one_resource) {
     $tx_resource_name     = $one_resource['slug'];
     $category             = $one_resource['categories'][0];
+    if ('Cauldron' == $category) {
+        $tx_cauldron_resources[] = $tx_resource_name;
+    }
     // limit resource type only on one
     if ($category == $resource_type) {
-        // add statistic
-        $tx_stat_for_resource = tx_call("resource/$tx_resource_name/stats");
-        $tx_resource_name     = str_replace('page-', '', $tx_resource_name); // unify resource names
-        $one_resource['tx_resource_name'] = $tx_resource_name;
-        $one_resource['statistic']        = $tx_stat_for_resource;
-        $tx_resources_info[] = $one_resource;
+        if (is_null($wanted_resource) || $tx_resource_name == $wanted_resource) {
+            // add statistic
+            if (is_null($wanted_language)) {
+                $tx_stat_for_resource = tx_call("resource/$tx_resource_name/stats");
+            } else {
+                $tx_stat_for_resource[$wanted_language] = tx_call("resource/$tx_resource_name/stats/$wanted_language");
+            }
+            $tx_resource_name     = str_replace('page-', '', $tx_resource_name); // unify resource names
+            $one_resource['tx_resource_name'] = $tx_resource_name;
+            $one_resource['statistic']        = $tx_stat_for_resource;
+            $tx_resources_info[] = $one_resource;
+        }
     }
 }
+$tx_languages = array();
+if (is_null($wanted_language)) {
+    foreach ($tx_stat_for_resource as $tx_resource_language => $tx_resource_language_stat) {
+        $tx_languages[] = $tx_resource_language;
+    }
+} else {
+    $tx_stat_for_resource = tx_call("resource/$tx_resource_name/stats");
+    $tx_languages = array_keys($tx_stat_for_resource);
+}
 
 // create array ($report) with statistics from git
 $report = array();
@@ -373,13 +476,34 @@ if ('Webpages' == $resource_type) {
     $report = generating_report(get_other_langs(), $enFiles);
 } else {
     foreach ($git_resources as $git_resource_details) {
-        $git_path = $git_resource_details['git_path'];
         $tx_name  = $git_resource_details['tx_name'];
+        if (!is_null($wanted_resource) && $tx_name != $wanted_resource) {
+            continue;
+        }
+        $git_path = $git_resource_details['git_path'];
         $pot_name = $git_resource_details['pot_name'];
         $raw_html_dump = file_get_contents($git_path);
+        if (FALSE === $raw_html_dump) {
+            $errors['file_get_contents_failed'] = "Access to $git_path failed.";
+        }
         // list all po files from links within $raw_html_dump
-        preg_match_all("/('>)([a-z_A-Z]+)(\.po<)/", $raw_html_dump, $language_codes);
-        $one_report = generating_report(array_values($language_codes[2]), array($tx_name), $git_path, $pot_name);
+        preg_match_all("/('>)([a-z_A-Z@-]+)(\.po<)/", $raw_html_dump, $language_codes);
+        $git_language_codes = $language_codes[2];
+        if (is_null($wanted_language)) {
+            $report_language_codes = $git_language_codes;
+        } else {
+            if (in_array($wanted_language, $git_language_codes)) {
+                $report_language_codes = array($wanted_language);
+            } else {
+                $report_language_codes = array();
+                $note = '';
+                if ('isodumper' == $tx_name) {
+                    $note  = $isodumper_note;
+                }
+                $errors['lang_not_in_git'] = "Language $wanted_lang_name is not present in git for $tx_name resource. $note";
+            }
+        }
+        $one_report = generating_report(array_values($report_language_codes), array($tx_name), $git_path, $pot_name);
         $report = array_merge($one_report, $report);
     }
 }
@@ -442,7 +566,8 @@ foreach ($tx_resources_info as $tx_resource_info) {
                 // this bellow should normaly only happen inside of a tx sync window so remember it
                 } else if ($tx_resource_all_strings_in_lang != $git_resource_num_of_all_strings) {
                     if (!array_key_exists($git_resource_name, $nonequal_num_of_all_strings)) {
-                        $nonequal_num_of_all_strings[$git_resource_name] = "$git_resource_name git:$git_resource_num_of_all_strings/tx:$tx_resource_all_strings_in_lang";
+                        $nonequal_num_text = "$git_resource_name git:$git_resource_num_of_all_strings/tx:$tx_resource_all_strings_in_lang";
+                        $nonequal_num_of_all_strings[$git_resource_name] = $nonequal_num_text;
                     }
                 }
             }
@@ -465,7 +590,16 @@ ksort($tx_all_langs_above_treshold); // sort by lang
 sort($git_all_languages);
 sort($nonequal_num_of_all_strings, SORT_STRING);
 
-$tx_only_resources  = array_diff($tx_all_resource_names, $git_compare_resources);
+$tx_all_resources_above_treshold = array();
+foreach ($tx_all_langs_above_treshold as $tx_only_language => $resource_above_treshold_for_lang) {
+    foreach ($resource_above_treshold_for_lang as $resource_above_treshold) {
+        $tx_all_resources_above_treshold[] = $resource_above_treshold;
+    }
+}
+$tx_all_resources_above_treshold = array_unique($tx_all_resources_above_treshold);
+sort($tx_all_resources_above_treshold, SORT_STRING);
+
+$tx_only_resources  = array_diff($tx_all_resources_above_treshold, $git_compare_resources);
 $git_only_resources = array_diff($git_compare_resources, $tx_all_resource_names);
 $tx_only_languages  = array_diff(array_keys($tx_all_langs_above_treshold), $git_all_languages);
 $git_only_languages = array_diff($git_all_languages, $tx_all_languages);
@@ -473,19 +607,32 @@ $git_only_languages = array_diff($git_all_languages, $tx_all_languages);
 // preparing text for languages not present yet in our git repositories
 $tx_only_languages_details = '';
 if (0 < count($tx_only_languages)) {
-    $tx_only_languages_details  = "<h3>Languages with at least one resource for $resource_type translated over treshold ";
+    if (!is_null($wanted_language) && !is_null($wanted_resource)) {
+        $tx_only_languages_details = "<h3>Language $wanted_lang_name with $wanted_resource resource for $resource_type translated over treshold ";
+    } else if (!is_null($wanted_language) && is_null($wanted_resource)) {
+        $tx_only_languages_details = "<h3>Language $wanted_lang_name with at least one resource for $resource_type translated over treshold ";
+    } else if (is_null($wanted_language) && !is_null($wanted_resource)) {
+        $tx_only_languages_details = "<h3>Languages with $wanted_resource resource for $resource_type translated over treshold ";
+    } else {
+        $tx_only_languages_details = "<h3>Languages with at least one resource for $resource_type translated over treshold ";
+    }
     $tx_only_languages_details .= "($tx_lang_completed_treshold %) but not present yet in our git:</h3><ul>";
     foreach ($tx_only_languages as $tx_only_language) {
         $language_name = get_language_name($tx_only_language);
         $tx_only_languages_details .= '<li><span class="bold">' . $language_name . '</span>: ';
-        $tx_only_languages_details .= '<a href="http://www.transifex.com/organization/MageiaLinux/dashboard/all_resources/';
-        $tx_only_languages_details .= "$tx_only_language/#1/?c=$resource_type\">$tx_only_language</a> (resources over treshold: ";
-        $resources_above_treshold = array();
-        foreach ($tx_all_langs_above_treshold[$tx_only_language] as $resource_above_treshold) {
-            $resources_above_treshold[] = $resource_above_treshold;
+        if (is_null($wanted_resource)) {
+            $tx_only_languages_details .= build_transifex_link($tx_only_language, NULL, $resource_type);
+            $tx_only_languages_details .= " (resources over treshold: ";
+            $resources_above_treshold = array();
+            foreach ($tx_all_langs_above_treshold[$tx_only_language] as $resource_above_treshold) {
+                $resources_above_treshold[] = $resource_above_treshold;
+            }
+            sort($resources_above_treshold, SORT_STRING);
+            $tx_only_languages_details .= implode(", ", $resources_above_treshold) . ")";
+        } else {
+            $tx_only_languages_details .= build_transifex_link($tx_only_language, $tx_only_language, $resource_type, $wanted_resource);
         }
-        sort($resources_above_treshold);
-        $tx_only_languages_details .= implode(", ", $resources_above_treshold) . "),</li>";
+        $tx_only_languages_details .= ",</li>";
     }
     $tx_only_languages_details .= '</ul>';
 }
@@ -497,8 +644,19 @@ if (0 < count($git_only_languages)) {
 }
 
 if (0 < count($tx_only_resources)) {
-    $error                       = "Some resources (" . implode(", ", $tx_only_resources) . ") are present only in Transifex";
-    $errors['tx_only_resources'] = "$error but not in our git. Please report that.";
+    if (!is_null($wanted_language)) {
+        $tx_only_resources_array = array();
+        foreach ($tx_only_resources as $tx_only_resource) {
+            $tx_only_resource_text = build_transifex_link($wanted_language, $tx_only_resource, $resource_type, $tx_only_resource);
+            $tx_only_resources_array[] = $tx_only_resource_text;
+        }
+        $tx_only_resources_text = implode(", ", $tx_only_resources_array);
+    } else {
+        $tx_only_resources_text = implode(", ", $tx_only_resources);
+    }
+    $error                        = "Some resources ($tx_only_resources_text) are above treshold ";
+    $error                       .= "($tx_lang_completed_treshold %) and still present only in Transifex";
+    $errors['tx_only_resources']  = "$error but not in our git. Please report that. $isodumper_note";
 }
 
 if (0 < count($git_only_resources)) {
@@ -511,13 +669,16 @@ if (0 < count($parse_errors)) {
     foreach ($parse_errors as $single_git_resource_name => $git_resource_languages) {
         $errors[]                 = "$single_git_resource_name.po (languages: " . implode(", ", $git_resource_languages) . ")";
     }
-    $errors['po_file_parse']      = "It seems that parsing of some resources failed: " . implode(", ", $errors) . ".";
+    $reload                       = "Please reload the page and report this on mailing list if it persist.";
+    $errors['po_file_parse']      = "It seems that parsing of some resources failed: " . implode(", ", $errors) . ". $reload";
 }
 
 if (0 < count($nonequal_num_of_all_strings)) {
-    $error                                 = "Some resources (" . implode(", ", $nonequal_num_of_all_strings) . ") have different number of all strings";
-    $bug                                   = "Note that there is a <a href=\"https://bugs.mageia.org/show_bug.cgi?id=14899\">bug which influence proper parsing of msec and mageia-kde-translation</a>.";
-    $errors['nonequal_num_of_all_strings'] = "$error between our git and Transifex. Please report that on the mailing list if it happens across several days. $bug";
+    $error                                 = "Some resources (" . implode(", ", $nonequal_num_of_all_strings) . ") ";
+    $error                                .= "have different number of all strings between our git and Transifex.";
+    $bug                                   = "Note that there is a <a href=\"https://bugs.mageia.org/show_bug.cgi?id=14899\">";
+    $bug                                  .= "known bug which influence proper parsing of msec and mageia-kde-translation</a>.";
+    $errors['nonequal_num_of_all_strings'] = "$error Please report that on the mailing list if it happens across several days. $bug";
 }
 
 // making a list of resources with Tx/git differences
@@ -655,13 +816,31 @@ if ('Documentation' != $resource_type) {
 if ('Cauldron' != $resource_type) {
 //    $links[] = '<a href="./report_tx_git.php?c=Cauldron">software translations</a>';
 }
-$reports_links  = '<p>You can also see reports about differences in ' . implode(" or ", $links) . '. And please don\'t forget great ';
-$reports_links .= '<a href="https://wiki.mageia.org/en/Transifex_and_git_syncing">wiki page about Transifex and git syncing</a>.</p>';
+
+// list $tx_languages and $tx_cauldron_resources
+$languages_links = array();
+foreach ($tx_languages as $tx_language) {
+    $language_name = get_language_name($tx_language);
+    $languages_links[] = "<a href=\"./report_tx_git.php?c=Cauldron&amp;l=$tx_language\" title=\"$language_name\">$tx_language</a>";
+}
+sort($languages_links, SORT_STRING);
+$languages_link  = implode(", ", $languages_links);
+$resources_links = array();
+foreach ($tx_cauldron_resources as $tx_resource_name) {
+    $resources_links[] = "<a href=\"./report_tx_git.php?c=Cauldron&amp;r=$tx_resource_name\">$tx_resource_name</a>";
+}
+$resources_link = implode(", ", $resources_links);
+
+$reports_links  = '<p>You can also see reports about differences in ' . implode(" or ", $links) . '.</p>';
+$reports_links .= "<p>For software translations please choose language ($languages_link) or resource ($resources_link).</p>";
+$reports_links .= '<p>There is a nice ';
+$reports_links .= '<a href="https://wiki.mageia.org/en/Transifex_and_git_syncing">wiki page about Transifex and git synchronising</a>.</p>';
 echo $reports_links . PHP_EOL;
 
 // print out any errors
 if (0 < count($errors)) {
-    $error_text = '<ul>';
+    $error_text  = '<h3>There seems to be some errors during processing this time :(</h3>';
+    $error_text .= '<ul>';
     foreach ($errors as $single_error) {
         $error_text .= '<li class="bold">' . $single_error . '</li>';
     }
@@ -672,9 +851,19 @@ if (0 < count($errors)) {
 // print any languages present only in Transifex
 echo $tx_only_languages_details . PHP_EOL;
 
+$diff_desc = "between Transifex and our git repository for $resource_type.";
 if (0 < $num_of_resources_w_difference) {
     // print any differences between Transifex and our git repository
-    echo '<h3>Languages bellow have some differences between Transifex and our git repository.</h3>';
+    if (!is_null($wanted_resource) && !is_null($wanted_language)) {
+        $diff_title = "<h3>Language $wanted_lang_name bellow have some differences in resource $wanted_resource $diff_desc</h3>";
+    } else if (!is_null($wanted_resource) && is_null($wanted_language)) {
+        $diff_title = "<h3>Languages bellow have some differences in resource $wanted_resource $diff_desc</h3>";
+    } else if (is_null($wanted_resource) && !is_null($wanted_language)) {
+        $diff_title = "<h3>Language $wanted_lang_name bellow have some differences $diff_desc</h3>";
+    } else {
+        $diff_title = "<h3>Languages bellow have some differences in resources $diff_desc</h3>";
+    }
+    echo $diff_title;
     echo '<p>To avoid furter alienation and confusion please synchronise them.</p>';
     echo '<p>They differs on number of untranslated strings in resources:</p>';
     // print table if there are only a few resources with differences otherwise print a list
@@ -685,6 +874,17 @@ if (0 < $num_of_resources_w_difference) {
         echo '<h3>Same list but arranged by resources:</h3>';
         echo $list_of_resource_diff . PHP_EOL;
     }
+} else if (0 == count($tx_only_languages)) {
+    if (!is_null($wanted_resource) && !is_null($wanted_language)) {
+        $diff_title = "<h3>Congratulations. It seems that resource $wanted_resource in language $wanted_lang_name have no differences $diff_desc</h3>";
+    } else if (!is_null($wanted_resource) && is_null($wanted_language)) {
+        $diff_title = "<h3>Congratulations. It seems that resource $wanted_resource has no differences $diff_desc</h3>";
+    } else if (is_null($wanted_resource) && !is_null($wanted_language)) {
+        $diff_title = "<h3>Congratulations. It seems that in language $wanted_lang_name there is no resources with differences $diff_desc</h3>";
+    } else {
+        $diff_title = "<h3>Congratulations. It seems that there is no resources with differences $diff_desc</h3>";
+    }
+    echo $diff_title;
 }
 ?>
     <p>Source code for this website is