Add print-vcomponent procedure.

1 files changed, 19 insertions, 1 deletions

diff --git a/code.scm b/code.scm
index eba732bc..14581c90 100755
--- a/code.scm
+++ b/code.scm
@@ -1,7 +1,8 @@
 (define-module (code)
   #:export (extract localize-date sort* drop-time! copy-date
                     drop-time %date<=? date-today? color-if
-                    for-each-in STR-YELLOW STR-RESET))
+                    for-each-in STR-YELLOW STR-RESET
+                    print-vcomponent))
 
 (use-modules (srfi srfi-19)
              (srfi srfi-19 setters)
@@ -65,3 +66,20 @@
 (define-syntax-rule (for-each-in lst proc)
   (for-each proc lst))
 
+
+(define* (print-vcomponent comp #:optional (depth 0))
+  (let ((kvs (map (lambda (key) (cons key (get-attr comp key)))
+                  (attributes comp))))
+    (format #t "~a <~a> :: ~:a~%"
+            (make-string depth #\:)
+            (type comp) comp)
+    (for-each-in kvs
+                 (lambda (kv)
+                   (let ((key (car kv))
+                         (value (cdr kv)))
+                     (format #t "~a ~20@a: ~a~%"
+                             (make-string depth #\:)
+                             key value))))
+    (for-each-in (children comp)
+                 (cut print-vcomponent <> (1+ depth)))))
+