The EDT Keypad Emulator is an interactive text editor that
 demonstrates the versatility and extensibility of the VAXTPU
 programming language.  This editor emulates the keypad functions
 and some of the line mode commands of the EDT Version 3 text
 editor.  The purpose of the EDT Keypad Emulator is to provide you
 with a familiar editing interface.  It is hoped that you will use
 this editor as you have used EDT, but then go on to enhance the
 editor with the further powerful capabilities of the VAXTPU
 language.

Additional information available:

HELPKEYPAD_FUNCTIONSLINE_MODE_COMMANDSVAXTPU_EQUIVALENTS

 To use help from the CTRL/Z, '*' prompt, type HELP followed by a
 line_mode_command.  If the cursor is positioned after the 'Topic?'
 prompt then type:

    EDT                - to get a list of EDT_EMULATOR topics

    EDT LINE           - to get a list of line mode commands

    EDT KEY            - to get a list of keypad commands

    EDT VAXTPU_EQU     - to get help on VAXTPU syntax for missing
                         line mode commands

    VAXTPU             - to get help on the VAXTPU language

 One major difference between EDT and the VAXTPU EDT Keypad
 Emulator is the use of GOLD Keypad 7 (PF1 and KP7).  This command
 places you into VAXTPU command line mode.  Here you can enter
 VAXTPU commands or programs.  To use the emulated subset of EDT
 line mode commands you must use CTRL/Z and enter the commands at
 the asterisk (*) prompt.

Additional information available:

ADVANCEAPPENDBACKSPACEBACKUPBOTTOMCHAR
CHNGCASECOMMANDCTRL_ACTRL_CCTRL_DCTRL_ECTRL_F
CTRL_HCTRL_ICTRL_JCTRL_KCTRL_LCTRL_MCTRL_R
CTRL_TCTRL_UCTRL_WCTRL_YCTRL_ZCUTDEL_C
DEL_EOLDELETEDEL_LDEL_WDODOWN_ARROW
ENTEREOLFILLFINDFNDNXTGOLDHELP
LEFT_ARROWLINELINEFEEDOPEN_LINEPAGE
PASTEREPLACERESETRETURNRIGHT_ARROWSECT
SELECTSHIFT_LEFTSHIFT_RIGHTSPECINSTAB
TOPUND_CUND_LUND_WUP_ARROWVAXTPU_HELP
WORD

SUBS (substitute)No help available

 Keypad 4

 Sets the editing direction to forward; that is, toward the bottom
 of the buffer.

 Keypad 9

 Deletes the select range from the current buffer; appends it to
 the PASTE_BUFFER, just after the present contents of the
 PASTE_BUFFER.

 CTRL/H

 Moves the cursor to the beginning of the current line or the
 previous line, depending on the editing direction.

 Keypad 5

 Sets the editing direction to reverse; that is, toward the top of
 the buffer.

 GOLD Keypad 4

 Moves the cursor to the end of the current buffer.

 Keypad 3

 Moves the cursor one character in the current direction.

 GOLD Keypad 1

 Changes the case of all the letters in the select range, or the
 case of the current letter.

 GOLD Keypad 7

 Enables you to enter one or a sequence of VAXTPU built-in
 procedures or user-written procedures for execution.  Type the
 procedure name in response to the 'TPU Command:' prompt.

 CTRL/A (Compute Tab Level)

 Resets the tab indentation level to the current cursor position,
 if that position is a multiple of the current SET TAB value.

 CTRL/C

 Aborts the current VAXTPU operation.  CTRL/C is useful for
 stopping searches and the reading and writing of files.  You
 should exit from the editor after using CTRL/C and start a new
 session for any further edits.  It may not be possible to recover
 text changes made after a CTRL/C.

 CTRL/D (Decrease Tab Level)

 Reduces the current tab level count by one.

 CTRL/E (Increase Tab Level)

 Increases the current tab level count by one.

 CTRL/F

 Erases the window that displays HELP or SHOW text, and returns the
 cursor to MAIN_WINDOW.

 CTRL/H

 BACKSPACE

 Moves the cursor to the beginning of the current line.  If the
 cursor is already at the beginning of the line, entering CTRL/H
 moves the cursor to the beginning of the previous line.

 CTRL/I

 TAB

 Moves the text that is to the right of the cursor (including the
 cursor character) to the right to the nearest preset VAXTPU tab
 stop.

 CTRL/J

 LINEFEED

 Deletes characters from the current cursor position to the
 beginning of the word that the cursor is in.  If the cursor is at
 the beginning of a word, the previous word is deleted.

 CTRL/K

 Prompts for the VAXTPU define key command.

 CTRL/L

 Inserts a form feed character into the text.

 CTRL/M

 RETURN

 Causes a new line to be inserted at the current cursor position.
 The cursor moves to the beginning of the new line.

 CTRL/R (Refresh Screen)

 Refreshes the screen.

 CTRL/T (Tab Adjust)

 Indents each line in the select range.  Note that this key will
 only work if you have used the DCL command 'SET NOCONTROL=T'.

 CTRL/U (Delete to Beginning of Line)

 Deletes text from the current cursor position to the beginning of
 the line.  The deleted text replaces the contents of the DELETE
 LINE buffer.

 CTRL/W (Refresh Screen)

 Refreshes the screen.

 CTRL/Y

 Aborts the current editing session.  The current edits are saved
 in a journal file.  If you pressed this key sequence by accident
 you can resume your editing session by typing "CONTINUE" at the
 DCL prompt.

 CTRL/Z (Exit to Line Mode)

 Shifts from keypad mode to the EDT Keypad Emulator command line
 mode.  Places the cursor at the EDT Keypad Emulator command line
 mode prompt (*).

 Keypad 6

 Deletes the select range and places it in the PASTE_BUFFER.  The
 previous contents of the PASTE_BUFFER, if any, are deleted.

 DEL C (delete character)

 Keypad COMMA

 Deletes the character that the cursor is on.

 DEL EOL (delete to end of line)

 Gold Keypad 2

 Deletes text from the current cursor position to the end of the
 line.  Does not delete the line terminator.

 DELETE key on VT100, <X] key on VT200

 Deletes the character to the left of the current cursor position.

 DEL L (delete line)

 Keypad PF4

 Deletes text from the current cursor position to the beginning of
 the next line, deleting the line terminator.

 DEL W (delete word)

 Keypad MINUS

 Deletes characters from the current cursor position to the
 beginning of the next word.

 DO key on VT200

 Sends a command or search string to the editor for processing.

 Moves the cursor down to the position on the following line that
 corresponds to the current cursor position.

 Sends a command or search string to the editor for processing.
 Completes the CTRL/K key definition process.

 Keypad 2

 Moves the cursor to the next line terminator in the current
 editing direction.

 GOLD Keypad 8

 Reformats the text in the select range so that as many whole words
 as possible are included within the current buffer's margin
 settings.

 If SET WRAP is in effect, the left margin is one, and the right
 margin is the value established through SET WRAP.  If SET WRAP is
 not in effect, then the text is wrapped between column one and the
 width of the current window.

 Gold Keypad PF3

 Searches in the current direction for the string that you type
 when the EDT Keypad Emulator displays the 'Search for:' prompt.

 Keypad PF3

 Locates the next occurrence of the current search string in the
 current direction.

 Keypad PF1

 Accesses alternate keypad functions.

 Keypad PF2

 PF2 provides information on the keypad layout.  Gold Keypad PF2
 provides information on keypad editing and VAXTPU features in
 general.  Request information after the "Topic:  " prompt.

 Moves the cursor one character to the left.

 Keypad 0

 Moves the cursor to the beginning of the next line in the current
 editing direction.

 CTRL/J

 Deletes characters from the current cursor position to the
 beginning of the word that the cursor is in.  If the cursor is at
 the beginning of a word, the previous word is deleted.

 Gold Keypad 0

 Causes a new line to be inserted at the current cursor position.
 The cursor does not move.

 Keypad 7

 Moves the cursor to the next EDT Keypad Emulator page boundary in
 the current direction.

 Gold Keypad 6

 Inserts the contents of the PASTE_BUFFER just before the cursor.

 Gold Keypad 9

 Deletes the selected range and replaces it with the contents of
 the PASTE_BUFFER.

 Gold Keypad PERIOD

 Cancels the select range and sets the current buffer's direction
 to forward.  Also clears the PROMPT_AREA.

 Inserts a line terminator in the text.  The cursor moves to the
 beginning of the new line.

 Moves the cursor one character to the right.

 Keypad 8

 Moves the cursor 16 lines in the current direction.

 Keypad PERIOD

 Marks one end of a select range.  When you move the cursor again,
 the characters that the cursor passes over become the select
 range.

 Gold left arrow

 Shifts the screen image of the MAIN_WINDOW 8 columns to the left.
 Has no effect on the text.

 Gold right arrow

 Shifts the screen image of the MAIN_WINDOW 8 columns to the right
 if the text has already been shifted to the left.  Has no effect
 on the text.

 Gold Keypad 3

 Allows you to insert any character from the DEC Multinational
 Character Set into your text by first entering GOLD, then the
 decimal equivalent value for that character, followed by GOLD
 SPECINS.

 Gold Keypad ENTER

 Replaces the next occurrence of the current search string in your
 text with the contents of the PASTE_BUFFER.

 CTRL/I

 Moves the text that is to the right of the cursor (including the
 cursor character) to the right to the nearest preset tab stop.

 Gold Keypad 5

 Moves the cursor to the beginning of the current buffer.

 UND C (undelete character)

 Gold Keypad COMMA

 Inserts the contents of the delete character buffer to the left of
 the cursor.

 UND L (undelete line)

 Gold Keypad PF4

 Inserts the contents of the delete line buffer to the left of the
 cursor.

 UND W (undelete word)

 Gold Keypad MINUS

 Inserts the contents of the delete word buffer to the left of the
 cursor.

 Moves the cursor up to the position on the previous line that
 corresponds to the current cursor position.

 Gold Keypad PF2

 Provides information on keypad editing and VAXTPU features in
 general.  Request information after the "Topic:  " prompt.

 Keypad 1

 Moves the cursor to the beginning of the next word in the current
 direction.

 No help is available on that key.  The key that you pressed is
 either not assigned to a command or there has been no help text
 included for that key.

 The EDT Keypad Emulator provided with VAXTPU emulates only a few
 of the line mode commands offered by EDT.  To enter one of the
 line mode commands, press CTRL/Z.  The asterisk prompt (*) appears
 at the lower left margin of your screen.  Enter the EDT Keypad
 Emulator line mode command followed by RETURN.  To reenter keypad
 mode, type the letter C, for Change, followed by RETURN.  The
 cursor returns to its former location in the text.

 You can extend or enhance the EDT Keypad Emulator's line mode
 commands by using the VAXTPU programming language.  See the VAX
 Text Processing Utility Reference Manual for more information on
 customizing the VAXTPU EDT Keypad Emulator editing interface.

Additional information available:

CHANGEEXITINCLUDEQUITSUBSTITUTEWRITE
SETSHOW

Command line specifiersMissing commands

 C

 Shifts the EDT Keypad Emulator to keypad mode, and returns the
 cursor to its former location in the text.

 EXIT [/SAVE] [file-spec]

 Ends the EDT Keypad Emulator session, saving a copy of the
 MAIN_BUFFER text in an external file.

Additional information available:

/SAVE

 The /SAVE command line qualifier tells the EDT Keypad Emulator to
 save the journal file.  Whenever you use /SAVE, you must type a
 slash before it to signal the emulator that the following letters
 refer to a qualifier, and not a command word or string.  The /SAVE
 qualifier must be placed before the file name in this command.

 INCLUDE file-spec [=buffer]

 Copies the specified file into the current EDT Keypad Emulator
 session, at the current cursor position.  If you supply a buffer
 specification, it becomes the new current buffer.

 QUIT [/SAVE]

 Ends your editing session without saving a copy of your editing
 work.  The EDT Keypad Emulator prompts you with the message:
 'Buffer modifications will not be saved, continue quitting (Y or
 N)?' only if you modified the text.  You respond with a Y or N.

Additional information available:

/SAVE

 The /SAVE command line qualifier tells the EDT Keypad Emulator to
 save the journal file.  Whenever you use /SAVE, you must type a
 slash before it to signal the emulator that the following letters
 refer to a qualifier, and not a command word or string.  The /SAVE
 qualifier is the last element in the command line.

 SUB /old_string/new_string/ [WHOLE]

 Replaces old_string with new_string.  If you supply no location
 specifiers, the substitution takes place at the first occurrence
 of "old_string" on the current line.  If you specify WHOLE, then
 the substitution is made throughout the current buffer.

 WRITE file-spec [select|whole]

 Puts a copy of the entire current buffer or select range into the
 specified file.  Unlike EXIT, this command does not end the
 current editing session.  The SELECT option allows you to copy a
 selected region of text into the specified file.  When finished
 copying the text, the select range is reset.

 SET commands allow you to customize your editing session.

Additional information available:

CURSORSCREENSEARCHTABWRAP

 SET CURSOR top:bottom

 Controls scrolling of the screen relative to the distance of the
 cursor from the screen top and the screen bottom.  Values for the
 top and bottom can range from 0 to 21.  Default:  SET CURSOR 7:14.

 SET SCREEN width

 Sets the maximum number of characters that VAXTPU displays on a
 line of text.  The possible widths for VT100 terminals with
 advanced video option (AVO) are 80 and 132.  The width for VT100
 terminals without AVO is 80.  The possible widths for VT200
 terminals are 80 and 132.  Default:  set by operating system.

 SET SEARCH {GENERAL|EXACT}

 If EXACT, then the case of the characters must be the same.

 SET SEARCH {BEGIN|END}

 If END, then the current position will become the character
 following the located string; otherwise it will be the first
 character of the located string (default).

 SET TAB number

 Sets the tab value for various tabbing functions.

 SET WRAP number

 Determines after which character VAXTPU wraps text being inserted
 in keypad mode.  It is also the right margin used in the FILL
 command.  If a SET WRAP number is not indicated, then the FILL
 command uses the current window size as the right margin.

 SHOW commands tell which SET commands are in effect.

Additional information available:

BUFFERCURSORSCREENSEARCHVERSIONWRAP

 Lists all buffers currently in use during your EDT Keypad Emulator
 session.  Also lists the number of lines in each buffer and the
 file name.  An equal sign (=) indicates the current buffer.

 Shows where scrolling of the screen relative to the distance of
 the cursor from the screen top and the screen bottom occurs.
 Values for the top and bottom can range from 0 to 21.  Default:
 SET CURSOR 7:14.

 Shows the maximum number of characters that VAXTPU displays on a
 line of text.  The possible widths for VT100 terminals with
 advanced video option (AVO) are 80 and 132.  The width for VT100
 terminals without AVO is 80.  The possible widths for VT200
 terminals are 80 and 132.  Default:  set by operating system.

 Shows how VAXTPU performs searches.  Default:  SET SEARCH GENERAL,
 SET SEARCH BEGIN.

 Displays the current VAXTPU version number and the current version
 number of EDTSECINI.TPU (the EDT Keypad Emulator section file).

 Shows after which character VAXTPU wraps text being inserted in
 keypad mode.  It is also the right margin used in the FILL
 command.  If a SET WRAP number is not indicated, then the fill
 command uses the current window size as the right margin.

Additional information available:

bufferfile-specificationselectwhole

 The name of a VAXTPU buffer.  Use the equal sign (=) immediately
 before the buffer name (for example, =MAIN).  If the buffer does
 not exist, VAXTPU creates one.  The EDT Keypad Emulator moves to
 the named buffer, except in the case of the WRITE command.

 The specification for an external file.  It can include a
 directory specification.  With INCLUDE, it tells the EDT Keypad
 Emulator which file to copy into your editing session.  With EXIT
 and WRITE, it tells the EDT Keypad Emulator which file to create
 to hold text from your editing session.  If you include directory
 information, the directory must exist and you must have access to
 it.

 A selected region of text.  The selected text is copied into a
 file that is specified in the WRITE command.

 The entire buffer is used.  With WRITE, it tells VAXTPU to write
 out the entire buffer (default).  With the SUBSTITUTE command, it
 tells VAXTPU to search the entire buffer.

 Although the EDT Keypad Emulator provides only a few of the most
 frequently used line mode commands, missing commands can be
 executed by using VAXTPU built-ins from the Gold KP7 command line.
 To get a list of the VAXTPU syntax for the missing EDT line mode
 commands, ask for help on EDT_EMULATOR VAXTPU_EQUIVALENTS.

    The following table gives a quick view of how to enter VAXTPU
    procedure names after the "TPU Command:" prompt to emulate EDT
    line mode commands if you are using the EDT Keypad Emulator.


 EDT                            VAXTPU
 ---                            ------
 CLEAR temp                     DELETE(temp_buffer)

 COPY =main TO =paste           POSITION(paste_buffer)
                                COPY_TEXT(main_buffer)

 DEFINE KEY                     DEFINE_KEY("READ_FILE(
  control N as                     READ_LINE('File name:'))"
  "EXT INCLUDE ?'File name: '."    ,CTRL_N_KEY)

 DELETE =main                   ERASE(main_buffer)

 EXIT                           EXIT

 FILL =main                     FILL(main_buffer,' ',r_margin,l_margin)

 FIND =my_buffer  or            buffer_name := CREATE_BUFFER('my_buffer')
   =my_buffer                   MAP(main_window,buffer_name)

 INCLUDE foo.bar                READ_FILE('foo.bar')

 INSERT;character_string        COPY_TEXT('character_string')

 QUIT                           QUIT

 SET SCREEN 132                 SET(WIDTH,main_window,132)

 SET CURSOR 7:14                SET (SCROLLING,current_window,ON,6,7,0)

 SHL                            SHIFT(current_window,8)

 SHR                            SHIFT(current_window,-8)

 SHOW SCREEN                    SHOW(screen)
                                SHOW(windows)

 SHOW version                   SHOW(summary)

 SHOW buffer                    SHOW(buffers)

 WRITE foo.bar                  WRITE_FILE(main_buffer,'foo.bar')