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HELP VT52 A.Sloman Feb 1983 Using VED with a VT52 Compatible Terminal ========================================= The command: LIB VT52; will compile a file which sets up VED for a VT52 terminal. This command can be put in your VEDINIT.P file if you regularly use a VT52. There may be a saved image which can be run with the DCL command: $ POP11/VT52 Definition of 'DUMB VT52' terminal: no insert line, no delete line, no character insert, no character delete, no graphic characters, no special functions on numeric keypad, only three function keys GOLD KEY2 KEY3 (There may be more function keys on some VDUs.) Mapping between characters and procedures ========================================= Control characters are mostly mapped onto edit functions. See HELP VEDKEYS The GOLD key plays a special role, usually preceding another key. Similarly the <ESC> key. Press GOLD twice to refresh the screen, in case it has got corrupted, e.g. by broadcast messages. Use of Command line: ------------------- ENTER command: to get to command line and clear it, ready to give a new command. Press the GOLD key then RETURN OR Press the <ESC> key then "e" (lower case) REDO command: to redo the last command on command line: <ESC> key then RETURN CHANGE MODE : to go to command line without altering, or to move from command line back into file: <ESC> key then the 0 key. MOVING CURSOR: -------------- The four arrow keys move the cursor one space in the direction of the arrow. LARGER MOVES: There are four sorts of larger moves: to top or bottom of file, boundary of window (and scroll), quarter of a window, or word-left or word-right. TOP OF FILE <ESC> then UP ARROW END OF FILE <ESC> then DOWN ARROW SCREEN UP - move cursor to top of window, or scroll if already there: GOLD then UP ARROW SCREEN DOWN - move to bottom of window, or scroll if already there: GOLD then DOWN ARROW SCREEN LEFT: move to left of screen (defined by VEDLEFTMARGIN) GOLD then LEFT ARROW SCREEN RIGHT: move to end of line of text GOLD then RIGHT ARROW NUMERIC KEYPAD: Largeish movements in 8 directions are associated with <ESC> followed by one of the keypad numbers 1 2 3 4 6 7 8 9 -________-________-________- | 7 UP | 8 UP |9 UP | | LEFT | | RIGHT | |________|________|________| | 4 |5 |6 | | LEFT | CENTRE| RIGHT | |________|________|________| | 1 DOWN | 2 DOWN |3 DOWN | | LEFT | | RIGHT| |________|________|________| <ESC> 5 puts cursor in the middle of the line: WORD MOVES Usually a keypad will have a dot and a comma key. Preceded by <ESC> they will cause the cursor to move a word to left or to right. WORD LEFT <ESC> , (alternatively <ESC> LEFT ARROW) WORD RIGHT <ESC> . (alternatively <ESC> RIGHT ARROW) MARKING A RANGE MARKLO: mark beginning of range KEY2 MARKHI: mark end of range KEY3 MOVE MARKED RANGE after current line <ESC> KEY2 INSERTING LINES LINE ABOVE: insert line above current line GOLD KEY2 LINE BELOW: insert line below current line GOLD KEY3 DELETING TEXT Various deletions are produced by GOLD followed by keypad key. Top row deletes characters left of, under and right of cursor DELETE character to left GOLD 7 DELETE character under cursor GOLD 8 DELETE character to right of cursor GOLD 9 Second row deletes portion of line or whole line. DELETE line to left of cursor GOLD 4 DELETE whole line GOLD 5 DELETE line to right of cursor GOLD 6 DELETE word to left GOLD , DELETE word to right GOLD . POSITION STACK Third row on keypad for stacking popping or exchanging positions PUSH current position onto stack GOLD 1 POP top of position stack GOLD 2 EXCHANGE current position with top of stack GOLD 3 MISCELLANEOUS Switch in and out of STATIC mode ESC #