X-Git-Url: http://git.kpe.io/?p=kmrcl.git;a=blobdiff_plain;f=lists.lisp;h=a7ae3d1655f197fd5142a335c0b093e2f91a3ec8;hp=dee8317518d8312902e52a11381c193d1ddd9384;hb=ca0dcaef675ae959bb83754254fb68cb5f0ec670;hpb=b7af043786744aaf0b67a5ee6f4d42a647dc738d

diff --git a/lists.lisp b/lists.lisp
index dee8317..a7ae3d1 100644
--- a/lists.lisp
+++ b/lists.lisp
@@ -7,7 +7,7 @@
 ;;;; Programmer:    Kevin M. Rosenberg
 ;;;; Date Started:  Apr 2000
 ;;;;
-;;;; $Id: lists.lisp,v 1.1 2003/04/29 00:26:21 kevin Exp $
+;;;; $Id: lists.lisp,v 1.3 2003/05/06 01:43:14 kevin Exp $
 ;;;;
 ;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
 ;;;;
@@ -69,6 +69,12 @@
 	    it
 	    nil)))))
 
+(defun flatten (lis)
+  (cond ((atom lis) lis)
+	((listp (car lis))
+	 (append (flatten (car lis)) (flatten (cdr lis))))
+	(t (append (list (car lis)) (flatten (cdr lis))))))
+
 ;;; Keyword functions
 
 (defun remove-keyword (key arglist)
@@ -82,4 +88,51 @@
 		       :key #'symbol-name :test 'equal)
 	append (list name val)))
 
+(defun mapappend (func seq)
+  (apply #'append (mapcar func seq)))
+
+(defun mapcar-append-string-nontailrec (func v)
+  "Concatenate results of mapcar lambda calls"  
+  (aif (car v)
+       (concatenate 'string (funcall func it)
+		    (mapcar-append-string-nontailrec func (cdr v)))
+       ""))
+
+
+(defun mapcar-append-string (func v &optional (accum ""))
+  "Concatenate results of mapcar lambda calls"  
+  (aif (car v)
+       (mapcar-append-string 
+	func 
+	(cdr v) 
+	(concatenate 'string accum (funcall func it)))
+       accum))
+
+(defun mapcar2-append-string-nontailrec (func la lb)
+  "Concatenate results of mapcar lambda call's over two lists"  
+  (let ((a (car la))
+	(b (car lb)))
+    (if (and a b)
+      (concatenate 'string (funcall func a b)
+		   (mapcar2-append-string-nontailrec func (cdr la) (cdr lb)))
+      "")))
+  
+(defun mapcar2-append-string (func la lb &optional (accum ""))
+  "Concatenate results of mapcar lambda call's over two lists"  
+  (let ((a (car la))
+	(b (car lb)))
+    (if (and a b)
+	(mapcar2-append-string 
+	 func 
+	 (cdr la) 
+	 (cdr lb)
+	 (concatenate 'string accum (funcall func a b)))
+      accum)))
+
+(defun append-sublists (list)
+  "Takes a list of lists and appends all sublists"
+  (let ((results (car list)))
+    (dolist (elem (cdr list))
+      (setq results (append results elem)))
+    results))