X-Git-Url: http://git.kpe.io/?p=kmrcl.git;a=blobdiff_plain;f=seqs.lisp;h=302f5d5d04c62448af26475837bf7583f752350d;hp=92a4aa05818cce6454f0de95de635de031b440e8;hb=526eef1b59e071cbb4ecd35f73a14c1a3f8e32b6;hpb=b7af043786744aaf0b67a5ee6f4d42a647dc738d diff --git a/seqs.lisp b/seqs.lisp index 92a4aa0..302f5d5 100644 --- a/seqs.lisp +++ b/seqs.lisp @@ -7,7 +7,7 @@ ;;;; Programmer: Kevin M. Rosenberg ;;;; Date Started: Apr 2000 ;;;; -;;;; $Id: seqs.lisp,v 1.1 2003/04/29 00:26:21 kevin Exp $ +;;;; $Id$ ;;;; ;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg ;;;; @@ -19,51 +19,9 @@ (in-package :kmrcl) -(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 nsubseq (sequence start &optional (end (length sequence))) +(defun nsubseq (sequence start &optional end) "Return a subsequence by pointing to location in original sequence" + (unless end (setq end (length sequence))) (make-array (- end start) :element-type (array-element-type sequence) :displaced-to sequence