add list services supports #3

README.md

@@ -30,6 +30,24 @@ var_dump($sruCatalog->parse([
   "title" => 'Meier',
 ]));
 ```
+## Services
+
+(can be generated by ```php tests/supportByService.php```)
+
+| . | gvkk10plus | bvb | dnb | k10plus | loc |
+| all |  x |  | x |  | x |
+| title |  x | x | x | x | x |
+| author |  x | x | x | x | x |
+| subject |  x | x | x | x | x |
+| idn |  x | x | x | x | x |
+| isxn |  x | x | x | x | x |
+| isbn |  x | x |  |  | x |
+| issn |  x |  |  |  | x |
+| publisher |  x |  | x |  |  |
+| publisherPlace |  x |  | x |  |  |
+| year |  x |  | x | x |  |
+| language |  x |  | x |  |  |
+| corperation |  x |  | x |  | x |
 
 ## Testing
 

tests/supportByService.php

@@ -0,0 +1,24 @@
+<?php
+require_once __DIR__ . '/../vendor/autoload.php'; // Autoload files using Composer autoload
+use Libreja\SruCatalog;
+$sruCatalog = new SruCatalog\ServicesList();
+
+$table = [];
+foreach($sruCatalog->supportedKeys as $key=>$val){
+  $table[$key] = [];
+}
+$html = "| . |";
+foreach($sruCatalog->getServices() as $serviceKey=>$serviceValue){
+  $html .= " ".$serviceKey." |";
+  foreach($table as $searchKey => $searchValue){
+    array_push($table[$searchKey],array_key_exists($searchKey,$serviceValue["search"]));
+  }
+}
+
+foreach($table as $key => $value){
+  $html .= "\n| ".$key." | ";
+  foreach($value as $exists){
+    $html .= " ".($exists?"x":"")." |";
+  }
+}
+echo $html;