Re: [Maxima-discuss] "Save" location

[Gunter K. <gu...@pe...>]

In theory wxMaxima should do the following things:

  * If the directory the worksheet is in is known when maxima is started
    the environment variable MAXIMA_INITIAL_FOLDER is set accordingly.
    This should cause maxima.bat to changes maxima's working directory
    into the Right Folder => Problem solved
  * If this is the case once the name of the worksheet file is known
    wxMaxima sends the following command to maxima:

                :lisp-quiet   (wx-cd <filename>)

  * The definition of wx-cd is as follows:

  (defun wx-cd (dir)
    (handler-case
      (progn
        (let ((dir (cond ((pathnamep dir) dir)
                 ((stringp dir)
              (make-pathname :directory (pathname-directory dir)
                           :host (pathname-host dir)
                         :device (pathname-device dir)))
                 (t (error "cd(dir): dir must be a string or pathname.")))))
      #+  allegro (excl:chdir dir)
      #+clisp (ext:cd dir)
      #+cmu (setf (ext:default-directory) dir)
      #+cormanlisp (ccl:set-current-directory dir)
      #+gcl (si::chdir dir)
      #+lispworks (hcl:change-directory dir)
      #+lucid (lcl:working-directory dir)
      #+sbcl (sb-posix:chdir dir)
      #+sbcl (setf *default-pathname-defaults* (sb-ext:native-pathname
(format nil "~A~A" (sb-posix:getcwd) "/")))
      #+ccl (ccl:cwd dir)
      #+ecl (si::chdir dir)
         ;;; Officially gcl supports (si:chdir dir), too. But the version
         ;;; shipped with debian and ubuntu (at least in Feb 2017) doesn't.
      #+gcl (xchdir dir)
      #+gcl (setf *default-pathname-defaults* dir)

      #-(or allegro clisp cmu cormanlisp gcl lispworks lucid sbcl ccl
ecl) (format t
           "Info: wxMathml.cpp: Changing the working dir during a maxima
session isn't implemented for this lisp.")
        (namestring dir)
      (wx-print-variables)))
      (error (c)        (format t "Warning: Can set maxima's working
directory but cannot change it during the maxima session :~%~&~%")
          (values 0 c))))

In theory that should set maxima's current working directory, too.

Is the directory you save the worksheets in actually mapped to a drive
one can change the current working directory to or are your file on a
network share and therefore named something to the likes of
\\myshare\path\filename.wxmx? Don't know enough of windows to know if
there would be a way to handle that.

Kind regards,

    Gunter.