(dc.info.gz) Miscellaneous

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 Miscellaneous
 *************
 
 `!'
      Will run the rest of the line as a system command.  Note that
      parsing of the !<, !=, and !> commands take precidence, so if you
      want to run a command starting with <, =, or > you will need to
      add a space after the !.
 
 `#'
      Will interpret the rest of the line as a comment.  (This command
      is a GNU extension.)
 
 `:R'
      Will pop the top two values off of the stack.  The old
      second-to-top value will be stored in the array R, indexed by the
      old top-of-stack value.
 
 `;R'
      Pops the top-of-stack and uses it as an index into the array R.
      The selected value is then pushed onto the stack.
 
    Note that each stacked instance of a register has its own array
 associated with it.  Thus `1 0:A 0SA 2 0:A LA 0;Ap' will print 1,
 because the 2 was stored in an instance of 0:A that was later popped.
 

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