r4822: *** empty log message ***

[kmrcl.git] / lists.lisp

diff --git a/lists.lisp b/lists.lisp
index ef134538c9e49af564b88df2ff5e7b1cf0c01841..a7ae3d1655f197fd5142a335c0b093e2f91a3ec8 100644 (file)
--- a/lists.lisp
+++ b/lists.lisp
@@ -7,7 +7,7 @@
 ;;;; Programmer:    Kevin M. Rosenberg
 ;;;; Date Started:  Apr 2000
 ;;;;
-;;;; $Id: lists.lisp,v 1.2 2003/05/02 22:30:26 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
 ;;;;
@@ -88,4 +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))