;;;; Programmer: Kevin M. Rosenberg
;;;; Date Started: Apr 2000
;;;;
-;;;; $Id: genutils.lisp,v 1.6 2002/11/04 18:02:13 kevin Exp $
+;;;; $Id: genutils.lisp,v 1.15 2003/02/07 14:21:55 kevin Exp $
;;;;
;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;;
(in-package :kmrcl)
(declaim (optimize (speed 3) (safety 1) (compilation-speed 0) (debug 3)))
-(defmacro bind-when ((bind-var boundForm) &body body)
- `(let ((,bind-var ,boundForm))
- (declare (ignore-if-unused ,bind-var))
- (when ,bind-var
- ,@body)))
+(defmacro let-when ((var test-form) &body body)
+ `(let ((,var ,test-form))
+ (when ,var ,@body)))
-(defmacro bind-if ((bind-var boundForm) yup &optional nope)
- `(let ((,bind-var ,boundForm))
- (if ,bind-var
- ,yup
- ,nope)))
+(defmacro let-if ((var test-form) if-true &optional if-false)
+ `(let ((,var ,test-form))
+ (if ,var ,if-true ,if-false)))
;; Anaphoric macros
(if val (push val acc))))
(nreverse acc)))
+(defun appendnew (l1 l2)
+ "Append two lists, filtering out elem from second list that are already in first list"
+ (dolist (elem l2)
+ (unless (find elem l1)
+ (setq l1 (append l1 (list elem)))))
+ l1)
;; Functions
((> ,var ,gstop))
,@body)))
-
+(defmacro with-each-stream-line ((var stream) &body body)
+ (let ((eof (gensym))
+ (eof-value (gensym))
+ (strm (gensym)))
+ `(let ((,strm ,stream)
+ (,eof ',eof-value))
+ (do ((,var (read-line ,strm nil ,eof) (read-line ,strm nil ,eof)))
+ ((eql ,var ,eof))
+ ,@body))))
+
+(defmacro with-each-file-line ((var file) &body body)
+ (let ((stream (gensym)))
+ `(with-open-file (,stream ,file :direction :input)
+ (with-each-stream-line (,var ,stream)
+ ,@body))))
+
+
;;; Keyword functions
(defun remove-keyword (key arglist)
(defun indent-spaces (n &optional (stream *standard-output*))
"Indent n*2 spaces to output stream"
- (let ((fmt (format nil "~~~DT" (+ n n))))
- (format stream fmt)))
+ (when (numberp n)
+ (let ((fmt (format nil "~~~DT" (+ n n))))
+ (format stream fmt))))
(defun print-list (l &optional (output *standard-output*))
"Print a list to a stream"
(terpri ostrm)))
-;;; Symbol functions
-
-(defmacro concat-symbol (&rest args)
- `(intern (concatenate 'string ,@args)))
-
-(defmacro concat-symbol-pkg (pkg &rest args)
- `(intern (concatenate 'string ,@args) ,pkg))
-
-
;;; IO
(defun file-subst (old new file1 file2)
(with-open-file (in file1 :direction :input)
- (with-open-file (out file2 :direction :output
- :if-exists :supersede)
- (stream-subst old new in out))))
+ (with-open-file (out file2 :direction :output
+ :if-exists :supersede)
+ (stream-subst old new in out))))
(defun stream-subst (old new in out)
(declare (string old new))
"Opens a reads a file. Returns the contents as a single string"
(when (probe-file file)
(with-open-file (in file :direction :input)
- (do ((line (read-line in nil 'eof)
- (read-line in nil 'eof)))
- ((eql line 'eof))
- (format strm "~A~%" line)))))
+ (let ((eof (gensym)))
+ (do ((line (read-line in nil eof)
+ (read-line in nil eof)))
+ ((eq line eof))
+ (format strm "~A~%" line))))))
(defun read-file-to-string (file)
"Opens a reads a file. Returns the contents as a single string"
(with-output-to-string (out)
(with-open-file (in file :direction :input)
- (do ((line (read-line in nil 'eof)
- (read-line in nil 'eof)))
- ((eql line 'eof))
- (format out "~A~%" line)))))
+ (let ((eof (gensym)))
+ (do ((line (read-line in nil eof)
+ (read-line in nil eof)))
+ ((eq line eof))
+ (format out "~A~%" line))))))
(defun read-file-to-strings (file)
"Opens a reads a file. Returns the contents as a list of strings"
(let ((lines '()))
(with-open-file (in file :direction :input)
- (do ((line (read-line in nil 'eof)
- (read-line in nil 'eof)))
- ((eql line 'eof))
- (push line lines)))
- (nreverse lines)))
-
+ (let ((eof (gensym)))
+ (do ((line (read-line in nil eof)
+ (read-line in nil eof)))
+ ((eq line eof))
+ (push line lines)))
+ (nreverse lines))))
;;; Formatting functions
year
hr min sec))))
+
+;; Benchmarking
+
+(defun print-float-units (val unit)
+ (cond
+ ((< val 1d-6)
+ (format t "~,2,9F nano~A" val unit))
+ ((< val 1d-3)
+ (format t "~,2,6F micro~A" val unit))
+ ((< val 1)
+ (format t "~,2,3F milli~A" val unit))
+ ((> val 1d9)
+ (format t "~,2,-9F giga~A" val unit))
+ ((> val 1d6)
+ (format t "~,2,-6F mega~A" val unit))
+ ((> val 1d3)
+ (format t "~,2,-3F kilo~A" val unit))
+ (t
+ (format t "~,2F ~A" val unit))))
+
+(defun print-seconds (secs)
+ (print-float-units secs "sec"))
+
+(defmacro time-iterations (n &body body)
+ (let ((i (gensym))
+ (count (gensym)))
+ `(progn
+ (let ((,count ,n))
+ (format t "~&Test with ~d iterations: ~W" ,count (quote ,body))
+ (let ((t1 (get-internal-real-time)))
+ (dotimes (,i ,count)
+ ,@body)
+ (let* ((t2 (get-internal-real-time))
+ (secs (coerce (/ (- t2 t1)
+ internal-time-units-per-second)
+ 'double-float)))
+ (format t "~&Total time: ")
+ (print-seconds secs)
+ (format t ", time per iteration: ")
+ (print-seconds (coerce (/ secs ,n) 'double-float))))))))
+
+
+(defun nsubseq (sequence start &optional (end (length sequence)))
+ (make-array (- end start)
+ :element-type (array-element-type sequence)
+ :displaced-to sequence
+ :displaced-index-offset start))
projects / kmrcl.git / blobdiff