Changed

• CHANGE WINDOW WinNum
  • change the active window to the given window number. The active window is the one in which the interactive cursor will appear when it is invoked.
  • window numbering starts now from 1 (Fortran like) instead of 0 (C like). So in most of the cases the main window of the current directory has now number 1, and the zoom window (if any) has number 2.

• CLEAR
  • was performing a CLEAR PLOT
  • now performs a CLEAR ALL (see after).

• CLEAR ALPHA
  • commands is renamed (new name to be defined). It is supposed to bring to front (or focus) the graphic window (CLEAR ALPHA means hide the alphanumeric terminal).
  • reason: too many keywords accepted by CLEAR + keywords have no meaning for those who did not know the old devices like Tektro.
  • remark: this feature is poorly supported on Linux window managers (too many applications must have excessively used this, so that the window managers are very restrictive now).

• CLEAR DIRECTORY [DirName]
  • the old behavior was to make the directory and its content invisible for later destruction by COMPRESS.
  • command behaves differently: CLEAR DIRECTORY DirName empties the directory named DirName. As a consequence, this clears the windows seeing this directory. Without argument the content of the current working directory is removed. Segments are now really deleted.
  • reason: need a command which clears the content of a window i.e. of a top directory (usually). Need also to minimize the number of keywords accepted by CLEAR for clarity.
  • the old behavior (destruction of the directory) is ensured by the new command DESTROY DIRECTORY DirName.

• CLEAR SEGMENT
  • without argument, command was deleting the last segment created in the metacode.
  • without argument, command behaves slightly differently: it deletes the last created segment in the current working directory, which can be different from the old behavior.
  • reason: the metacode is now growing dynamically and the segments have lost their ``temporality''. Actually the new behavior seems better than the previous one.
  • no way to mimic exactly the old behavior
  • NB: CLEAR SEGMENT Name behaves as before, except it really deletes the segment now (in the past it could have only made the segment invisble for later deletion by COMPRESS).

• METACODE IMPORT|EXPORT
  • Backward compatibility is broken.