\documentclass[landscape,twocolumn,letterpaper]{article}
\begin{document}


{\bf DivaScheme Editing Commands}

\begin{tabular}{|l|l|} \hline
       x &           cut \\ \hline
       c    &        copy \\ \hline
       v       &     paste \\ \hline
       d         &   delete \\ \hline
       u           & undo \\ \hline
       y            &redo \\ \hline
       t            & transpose sexp \\ \hline
       J	    & join lines \\ \hline
	~ & ~ \\ \hline 
       i	    & go to insert mode \\ \hline
    (, [	    & open parenthesis \\ \hline
       \{   & open square brace \\ \hline
    ), ], or \} &	    close parenthesis \\ \hline
\end{tabular}    

~ \\
  
{\bf DivaScheme Inserting Commands}

\begin{tabular}{|l|l|} \hline
      esc	&    return to command mode \\ \hline
     ctrl-c	 &   cancel insertion \\ \hline
    (, [	   &  open parenthesis \\ \hline
       \{	   &  open square brace \\ \hline
    ), ], or \}	 &    close parenthesis \\ \hline
 	~ & ~ \\ \hline
     alt-/	&    auto-completion (Emacs' style) \\ \hline
     alt-?       &   pass to the next template \\ \hline
\end{tabular} 

~ \\

~ \\ 

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{\bf DivaScheme Moving Commands}

\begin{tabular}{|l|l|} \hline
     arrows  &       standard character-based motion \\ \hline
 ~ & ~  \\ \hline
       h          &  previous sexp \\ \hline
       j	    & in, move to the first (enclosed) sub-sexp \\ \hline
       k	    & out, move to enclosing sexp \\ \hline
       l	   & next sexp	       \\ \hline
 ~ & ~ \\ \hline
       a          & move to previous sibling
       e          & move to next sibling
 ~ & ~ \\ \hline
     ctrl-h	&    move to the nearest placeholder \\ \hline
       z	   & return to the previous position (undoing if necessary) \\ \hline
 ~ & ~ \\ \hline
       H	&    move before the current expression, go to insert mode \\ \hline
       L	 &   move after the current expression, go to insert mode \\ \hline
\end{tabular} 

~ \\

{\bf DivaScheme Searching Commands }

 \begin{tabular}{|l|l|} \hline
       s	 &   select the nearest match\\ \hline
       f	  &  search forward \\ \hline
       r	  &  search backward\\ \hline
       <&	    search from the top of the file\\ \hline
       >	&    search from the bottom of the file\\ \hline
 ~ & ~ \\ \hline
       n&	    skip to the next match\\ \hline
       p	&    skip to the previous match\\ \hline
\end{tabular} 

~ \\
 
 
 
{\bf DivaScheme Rearranging Commands }

\begin{tabular}{|l|l|} \hline
       m&	    mark this\\ \hline
       b	&    bring here\\ \hline
       B	&    put there\\ \hline
       M	&    unmark\\ \hline
       X	&    exchange the selection and the mark\\ \hline
\end{tabular} 

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  \newpage
 
{\bf DivaScheme Voicing Commands}

\begin{tabular}{|l|l|} \hline
       x    &        cut\\ \hline
       c    &        copy\\ \hline
       v     &       paste\\ \hline
       d    &        delete\\ \hline
       u    &        undo\\ \hline
       y    &        redo\\ \hline
       t    &        transpose\\ \hline
       J	  &  join\\ \hline
 ~ & ~ \\ \hline
    (, [	  &  open\\ \hline
       \{	&    open square\\ \hline
    ), ], or \}	 &   close\\ \hline
 ~ & ~ \\ \hline
     alt-/	&    magic\\ \hline
     alt-?   &       pass\\ \hline
 ~ & ~ \\ \hline
       h      &      backward\\ \hline
       j	 &  in\\ \hline
       k	  &  out\\ \hline
       l	 &   forward\\ \hline
 ~ & ~ \\ \hline
       a         &   younger
       e         &   older
~ & ~ \\ \hline
     ctrl-h	&    holder\\ \hline
       z	  &  cancel\\ \hline
\end{tabular}       
\begin{tabular}{|l|l|} \hline
       H	&    insert before this\\ \hline
       L&	    insert after this\\ \hline
       s	  &  select\\ \hline
       f	 &   search forward \\ \hline
       r	 &   search backward\\ \hline
       >	&    search top\\ \hline
       <	&    search bottom\\ \hline
 ~ & ~ \\ \hline
       n	&    next\\ \hline
       p	&    previous\\ \hline
       m&	    mark\\ \hline
       b	&    bring\\ \hline
       B	&    put\\ \hline
       M	&    unmark\\ \hline
       X	&    exchange\\ \hline
 ~ & ~ \\ \hline
       enter	 &   enter\\ \hline
 \end{tabular} 

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  \end{document}

