add a copy of the regexp definitions HEX and ESCAPED from structure

url to resolve mutual dependency

scheme/lib/uri.scm

@@ -15,6 +15,10 @@
 ;;; decode a URI
 ;;; walk over string s and unescape all occurrences of RegExp 'escaped' (see url.scm).
 
+;copy from url.scm:
+(define hex (rx hex-digit))
+(define escaped (rx (: "%" ,hex ,hex)))
+
 ;;; Remark: 
 ;;; we assume no non-ASCII characters occur in the URI; therefore the
 ;;; ascii table is used for conversion of the octet the hexnumber

scheme/packages.scm

@@ -463,7 +463,6 @@
 
 (define-structure uri uri-interface
   (open scheme-with-scsh
-	(subset url (escaped))
 	ascii
 	bitwise)
   (files (lib uri)))
@@ -724,11 +723,7 @@
 (define-structure httpd-handler-lib httpd-handler-lib-interface
   (open scheme-with-scsh
 	format-net
-;	sigevents
 	(subset srfi-13 (string-trim-both string-trim string-prefix? string-reverse string-contains string-take))
-;	let-opt				; :optional
-;	locks
-;	handle-fatal-error
 	sunet-utilities
 	httpd-requests
 	httpd-responses