X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Futils.lisp;h=d380e4c29b6b93c2b8ce6508c60c32f298462f49;hb=587d21c0521468b08f1e1b045f2d08a3a93873a5;hp=aa097af5d58db05249508f27297fd064d061eb99;hpb=d6435f07a86f9df5db3195ffe7c8fc3f9a246ee3;p=jscl.git

diff --git a/src/utils.lisp b/src/utils.lisp
index aa097af..d380e4c 100644
--- a/src/utils.lisp
+++ b/src/utils.lisp
@@ -16,6 +16,8 @@
 ;; You should have received a copy of the GNU General Public License
 ;; along with JSCL.  If not, see <http://www.gnu.org/licenses/>.
 
+(/debug "loading utils.lisp!")
+
 (defvar *newline* "
 ")
 
@@ -91,3 +93,14 @@
   (let ((key-val (if key (funcall key y) y))
         (fn (if test-not-p (complement test-not) test)))
     (funcall fn x key-val)))
+
+
+(defun interleave (list element &optional after-last-p)
+  (unless (null list)
+    (with-collect
+      (collect (car list))
+      (dolist (x (cdr list))
+        (collect element)
+        (collect x))
+      (when after-last-p
+        (collect element)))))