-(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)))