Artifact d41870fe70e84aea34f3fbbb6b07b4523043c0f4ba9635d69b9e18a79d64f0a7:

• File psl-1983/help/slate.hlp — part of check-in [eb17ceb7f6] at 2020-04-21 19:40:01 on branch master — Add Reduce 3.0 to the historical section of the archive, and some more
  files relating to version sof PSL from the early 1980s. Thanks are due to
  Paul McJones and Nelson Beebe for these, as well as to all the original
  authors.

  git-svn-id: https://svn.code.sf.net/p/reduce-algebra/code/historical@5328 2bfe0521-f11c-4a00-b80e-6202646ff360 (user: arthurcnorman@users.sourceforge.net, size: 2200) [annotate] [blame] [check-ins using] [more...]

SLATE help file:
---------------

Slate is built upon EMODE, so behaves like a 3 window EMACS.  Horizontal
and vertical scrolling and positioning correctly scroll the LineNumber and
ColumnNumber windows, and stepping commands move in 2 char cell positions.

[Note that lowercase will always behave as Upper case]

SLA symbols overwrite themselves and move to next position:
        1 0 + @ # * R S P D 
        .               clears a cell location
Row and Column Breaks are Toggles:
        M-R M-C 

<RUBOUT>        BackwardEraseCell

%    C-Q                GoToExec  (not yet implemented)

EMACS like Cursor Positioning Commands:
        M-<             BeginningOfSLA
        M->             EndOfSLA
        C-A             BeginningOfRow
        C-E             EndOfRow
        C-F             forwardCell
        <BLANK>         ForwardCell
        C-B             BackwardCell
        C-U             Iterate
        C-P             UpwardCell
        C-D             DownwardCell
        C-N             DownwardCell
        C-V             PageDown
        M-V             PageUp

        C-X >           PageRight
        C-X <           PageLeft

Command to Move to a specific location
        C-X P           CntrlXMoveToPos
Command to set a mark at a given cell.
        C-X @           CntrlXMark

Make a SLA grid of size ROWS by COLS
        C-X M           CntrlXMakeSLA

%Character Commands for Reading and Writing Files
        C-X R           CntrlXreadSLA
        C-X W           CntrlXwriteSLA

%M-I            MetaInsertSla [Not yet implemented]

Commands for Defining and Retrieving Segments and Objects
        C-X O           CntrlXDefineObject
        C-X S           CntrlXDefineSeg
        C-X I           CntrlXInsertObject
        C-X G           CntrlXInsertSeg
        C-X X           DefineRegionAsObject

Commands for Querying Object and Segment Data
        C-X D           CntrlXObjectDesc
        C-X F           CntrlXSegDesc
        M-O             MetaEvalObjectList
        M-S             MetaEvalSegList
        
Macros [currently unimplemented:]
        C-W             ExecuteMacro
        C-X (           MakeMacro
        C-X )           EndMacro