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path: root/gnu/packages/patches/hop-bigloo-4.0b.patch
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Bigloo 4.0b removes `xml-attribute-encode', which leads to a build failure
in Hop.

This patch allows Hop to be compiled with Bigloo 4.0b.


changeset:   3327:3515f7f1aef2
branch:      2.4.x
user:        Manuel Serrano <Manuel.Serrano@inria.fr>
date:        Wed Jul 31 12:41:10 2013 +0200
summary:     Fix serialization bug

diff -r 7244c4d30ad4 -r 3515f7f1aef2 runtime/js_comp.scm
--- a/runtime/js_comp.scm	Fri Jul 19 08:28:13 2013 +0200
+++ b/runtime/js_comp.scm	Wed Jul 31 12:41:10 2013 +0200
@@ -143,10 +143,17 @@
       (display "{ " op)
       (display-seq fields op
 	 (lambda (f op)
+	    (let ((iv (class-field-info f)))
 	    (display "'" op)
 	    (display (class-field-name f) op)
 	    (display "': " op)
-	    (compile ((class-field-accessor f) obj) op)))
+	       (cond
+		  ((and (pair? iv) (memq :client iv))
+		   =>
+		   (lambda (x)
+		      (compile (when (pair? (cdr x)) (cadr x)) op)))
+		  (else 
+		   (compile ((class-field-accessor f) obj) op))))))
       (display "}" op))
    
    (let ((klass (object-class obj)))
diff -r 7244c4d30ad4 -r 3515f7f1aef2 runtime/xml.scm
--- a/runtime/xml.scm	Fri Jul 19 08:28:13 2013 +0200
+++ b/runtime/xml.scm	Wed Jul 31 12:41:10 2013 +0200
@@ -55,6 +55,7 @@
 	    (generic xml-write-attribute ::obj ::obj ::output-port ::xml-backend)
 	    (generic xml-write-expression ::obj ::output-port)
 	    (xml-write-attributes ::pair-nil ::output-port ::xml-backend)
+	    (xml-attribute-encode obj)
 
 	    (xml->string ::obj ::xml-backend)
 	    
@@ -613,6 +614,52 @@
 	 (display ">" p))))
 
 ;*---------------------------------------------------------------------*/
+;*    xml-attribute-encode ...                                         */
+;*---------------------------------------------------------------------*/
+(define (xml-attribute-encode obj)
+   (if (not (string? obj))
+       obj
+       (let ((ol (string-length obj)))
+	  (define (count str ol)
+	     (let loop ((i 0)
+			(j 0))
+		(if (=fx i ol)
+		    j
+		    (let ((c (string-ref str i)))
+		       ;; attribute values should escape &#...
+		       (if (or (char=? c #\') (char=? c #\&))
+			   (loop (+fx i 1) (+fx j 5))
+			   (loop (+fx i 1) (+fx j 1)))))))
+	  (define (encode str ol nl)
+	     (if (=fx nl ol)
+		 obj
+		 (let ((nstr (make-string nl)))
+		    (let loop ((i 0)
+			       (j 0))
+		       (if (=fx j nl)
+			   nstr
+			   (let ((c (string-ref str i)))
+			      (case c
+				 ((#\')
+				  (string-set! nstr j #\&)
+				  (string-set! nstr (+fx j 1) #\#)
+				  (string-set! nstr (+fx j 2) #\3)
+				  (string-set! nstr (+fx j 3) #\9)
+				  (string-set! nstr (+fx j 4) #\;)
+				  (loop (+fx i 1) (+fx j 5)))
+				 ((#\&)
+				  (string-set! nstr j #\&)
+				  (string-set! nstr (+fx j 1) #\#)
+				  (string-set! nstr (+fx j 2) #\3)
+				  (string-set! nstr (+fx j 3) #\8)
+				  (string-set! nstr (+fx j 4) #\;)
+				  (loop (+fx i 1) (+fx j 5)))
+				 (else
+				  (string-set! nstr j c)
+				  (loop (+fx i 1) (+fx j 1))))))))))
+	  (encode obj ol (count obj ol)))))
+
+;*---------------------------------------------------------------------*/
 ;*    xml-write-attributes ...                                         */
 ;*---------------------------------------------------------------------*/
 (define (xml-write-attributes attr p backend)
diff -r 7244c4d30ad4 -r 3515f7f1aef2 share/hop-serialize.js
--- a/share/hop-serialize.js	Fri Jul 19 08:28:13 2013 +0200
+++ b/share/hop-serialize.js	Wed Jul 31 12:41:10 2013 +0200
@@ -942,7 +942,7 @@
 	 case 0x2e /* . */: return null;
 	 case 0x3c /* < */: return read_cnst();
          case 0x22 /* " */: return read_string( s );
-         case 0x25 /* " */: return decodeURIComponent( read_string( s ) );
+         case 0x25 /* % */: return decodeURIComponent( read_string( s ) );
          case 0x55 /* U */: return read_string( s );
 	 case 0x5b /* [ */: return read_vector( read_size( s ) );
 	 case 0x28 /* ( */: return read_list( read_size( s ) );
diff -r 7244c4d30ad4 -r 3515f7f1aef2 src/main.scm
--- a/src/main.scm	Fri Jul 19 08:28:13 2013 +0200
+++ b/src/main.scm	Wed Jul 31 12:41:10 2013 +0200
@@ -59,8 +59,6 @@
    (for-each register-srfi! (cons 'hop-server (hop-srfis)))
    ;; set the library load path
    (bigloo-library-path-set! (hop-library-path))
-   ;; define the Hop macros
-   (hop-install-expanders!)
    ;; setup the hop readers
    (bigloo-load-reader-set! hop-read)
    (bigloo-load-module-set!