-;;; $Id: utils.lisp,v 1.1 2003/06/20 04:12:29 kevin Exp $
+;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*-
+;;;; *************************************************************************
+;;;; FILE IDENTIFICATION
;;;;
-;;;; General purpose utilities
+;;;; Name: utils.lisp
+;;;; Purpose: General purpose utilities
+;;;; Author: Kevin M. Rosenberg
+;;;; Date Started: June 2002
+;;;;
+;;;; $Id$
+;;;;
+;;;; This file, part of LML2, is copyrighted and open-source software.
+;;;; Rights of modification and redistribution are in the LICENSE file.
+;;;;
+;;;; *************************************************************************
(in-package #:lml2)
-(defmacro aif (test then &optional else)
- `(let ((it ,test))
- (if it ,then ,else)))
-
-(defmacro awhen (test-form &body body)
- `(aif ,test-form
- (progn ,@body)))
-
-(defun keyword-symbol? (x)
- "Returns T if object is a symbol in the keyword package"
- (and (symbolp x)
- (string-equal "keyword" (package-name (symbol-package x)))))
-
-(defun list-to-spaced-string (list)
- (format nil "~{~A~^ ~}" list))
-
-(defun print-n-chars (char n stream)
- (declare (fixnum n)
- (optimize (speed 3) (safety 0) (space 0)))
- (do ((i 0 (1+ i)))
- ((= i n) char)
- (declare (fixnum i))
- (write-char char stream)))
-
-(defun indent-spaces (n &optional (stream *standard-output*))
- "Indent n*2 spaces to output stream"
- (print-n-chars #\space (+ n n) stream))
-
-(defun print-file-contents (file &optional (strm *standard-output*))
- "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))
- (write-string line strm)
- (write-char #\newline strm)))))
-
-(defun date-string (ut)
- (check-type ut integer)
- (multiple-value-bind (sec min hr day mon year dow daylight-p zone)
- (decode-universal-time ut)
- (declare (ignore daylight-p zone))
- (format nil "~[Mon~;Tue~;Wed~;Thu~;Fri~;Sat~;Sun~], ~d ~[Jan~;Feb~;Mar~;Apr~;May~;Jun~;Jul~;Aug~;Sep~;Oct~;Nov~;Dec~] ~d ~2,'0d:~2,'0d:~2,'0d"
- dow day (1- mon) year hr min sec)))
(defun lml-quit (&optional (code 0))
"Function to exit the Lisp implementation."
- #+allegro (excl:exit code)
- #+clisp (#+lisp=cl ext:quit #-lisp=cl lisp:quit code)
- #+(or cmu scl) (ext:quit code)
- #+cormanlisp (win32:exitprocess code)
- #+gcl (lisp:bye code)
- #+lispworks (lw:quit :status code)
- #+lucid (lcl:quit code)
- #+sbcl (sb-ext:quit :unix-status (typecase code (number code) (null 0) (t 1)))
- #+openmcl (ccl:quit code)
- #+(and mcl (not openmcl)) (declare (ignore code))
- #+(and mcl (not openmcl)) (ccl:quit)
- #-(or allegro clisp cmu scl cormanlisp gcl lispworks lucid sbcl mcl)
- (error 'not-implemented :proc (list 'quit code)))
-
+ (kmrcl:quit code))
(defun lml-cwd ()
- "Returns the current working directory. Based on CLOCC's DEFAULT-DIRECTORY function."
- #+allegro (excl:current-directory)
- #+clisp (#+lisp=cl ext:default-directory #-lisp=cl lisp:default-directory)
- #+(or cmu scl) (ext:default-directory)
- #+cormanlisp (ccl:get-current-directory)
- #+lispworks (hcl:get-working-directory)
- #+lucid (lcl:working-directory)
- #+sbcl (sb-unix:posix-getcwd/)
- #+mcl (ccl:mac-default-directory)
- #-(or allegro clisp cmu scl sbcl cormanlisp lispworks lucid mcl) (truename "."))
+ "Returns the current working directory."
+ (kmrcl:cwd))
+(defmacro fformat (stream control-string &rest args)
+ (if stream
+ `(funcall (formatter ,control-string) ,stream ,@args)
+ `(format nil ,control-string ,@args)))
projects / lml2.git / blobdiff