Add functions FIRST ... TENTH.

1 files changed, 50 insertions, 0 deletions

diff --git a/list-functions.lisp b/list-functions.lisp
new file mode 100644
index 0000000..f379e19
--- /dev/null
+++ b/list-functions.lisp
@@ -0,0 +1,50 @@
+(%defmacro pushq args
+  (list* 'setq (car (cdr args)) (car args)))
+
+(%defun first args
+  (car (car args)))
+
+(%defun caar args
+  (car (cdr (first args))))
+
+(%defun cadr args
+  (car (cdr (first args))))
+
+(%defun cdar args
+  (car (cdr (first args))))
+
+(%defun cddr args
+  (cdr (cdr (first args))))
+
+(%defun caddr args
+  (car (cddr (first args))))
+
+(%defun cdddr args
+  (cdr (cddr (first args))))
+
+(%defun second args
+  (cadr (car args)))
+
+(%defun third args
+  (caddr (car args)))
+
+(%defun fourth args
+  (car (cdddr (car args))))
+
+(%defun fifth args
+  (cadr (cdddr (car args))))
+
+(%defun sixth args
+  (caddr (cdddr (car args))))
+
+(%defun seventh args
+  (car (cdddr (cdddr (car args)))))
+
+(%defun eigthth args
+  (cadr (cdddr (cdddr (car args)))))
+
+(%defun ninth args
+  (caddr (cdddr (cdddr (car args)))))
+
+(%defun tenth args
+  (car (cdddr (cdddr (cdddr (car args))))))