September 2017 Update

Task/URL-encoding/Jq/url-encoding-2.jq

@@ -0,0 +1,9 @@
+def url_encode:
+   # The helper function checks whether the input corresponds to one of the characters: !'()*
+   def recode: . as $c | [33,39,40,41,42] | index($c);
+   def hex:   if . < 10 then 48 + . else  55 + . end;
+   @uri
+   | explode
+   # 37 ==> "%", 50 ==> "2"
+   | map( if recode then (37, 50, ((. - 32) | hex)) else . end )
+   | implode;