1 files changed, 16 insertions, 0 deletions
diff --git a/base.lisp b/base.lisp
index 7c72501..5531562 100644
--- a/base.lisp
+++ b/base.lisp
@@ -18,6 +18,22 @@
 (deftype parser ()
   `(function (cursor) result))
 
+(declaim (ftype (function (parser string) result) parse))
+(defun parse (parser data)
+  (funcall parser (make-cursor :data data)))
+
+(defmacro defparser (name args parser)
+  (let ((message (format nil "In ~a:~&" name)))
+    (if (and (listp args) (every #'symbolp args))
+      (let (definition)
+        (when (= (length args) 0)
+          (push `(defparameter ,name (,name)) definition))
+        (push `(defun ,name (,@args) ,parser)
+              definition)
+        (push 'progn definition)
+        definition)
+      (error "Malformed argument list."))))
+
 (defmacro lazy (parser &rest args)
   (let ((input (gensym)))
     `(the parser