- You can enter them at the command line using the PROMPT.
- You can create them in a file and then issue them with the TYPE command.
- You can include escape sequences in your programs.
Each ANSI escape sequence has the same basic syntax . ESC[parameters-command (spaces added for readability). ESC is the 1 byte code for escape. The escape code is $e at the command line using PROMPT.
- ESC[#;#H - Cursor Position (CUP)
The first # specifies the line number, the second # specifies the column. The default for both is 1
- ESC[#A - Cursor Up (CUU)
Moves the cursor UP # number of lines
- ESC[#B - Cursor Down (CUD)
Moves the cursor DOWN # number of lines
- ESC[#C - Cursor Forward (CUF)
Moves the cursor RIGHT # number of columns
- ESC[#D - Cursor Backward (CUB)
Moves the cursor LEFT # number of columns
- ESC[#;#f - Horizontal & Vertical Position
(same as ESC[#;#H)
- ESC[s - Save Cursor Position (SCP)
The current cursor position is saved. The cursor position can be restored using (RCP) ESC[u.
- ESC[u - Restore cursor position (RCP)
Restores the cursor position saved with the (SCP) sequence ESC[s.
- ESC[2J - Erase Display (ED)
Clears the screen and moves to the home position
- ESC[K - Erase Line (EL)
Clears the current line from the cursor position
- ESC[#;…;#m - Set Graphics Rendition (SGR)
(optional text may be included in the …) . The Escape parameters for (SGR)
- 0 All attributes OFF
- 1 Bold ON
- 4 Underscore ON (monochrome only)
- 5 Blink ON
- 7 Reverse Video ON
- 8 Concealed ON
- 30 Black Foreground
- 31 Red
- 32 Green
- 33 Yellow
- 34 Blue
- 35 Magenta
- 36 Cyan
- 37 White
- 40 Black Background
- 41 Red
- 42 Green
- 43 Yellow
- 44 Blue
- 45 Magenta
- 46 Cyan
- 47 White
- ESC[=#h Set Mode (SM)
Escape parameters for Set Mode (SM)
- 0 40×25 black& white
- 1 40×25 color
- 2 80×25 black & white
- 3 80×25 color
- 4 320×200 color
- 5 320×200 black & white
- 6 640×200 black & white
- 7 wrap at end of line
- ESC[=#I Reset Mode (RM)
Uses same parameters as Set Mode (SM)
- ESC[=#;#…#p or ESC[string–Keyboard Reasignment
The first # is the ASCII code for the key being changed, the second # or “string” is the replacement, with one exception - if the first # is a NULL then the first and second # represent the key being reassigned. Examples
- PROMPT $e[7m$n$p$e[m creates a standard prompt $n$g except in reverse video.
- PROMPT $p$g$e[33;44m - on a color video, this will set the prompt to display the directory $p$g and display it in red against blue.
- ESC[65;81p - reassigns A to become Q
- ESC[0;68;“DIR”;13p - reassigns the F10 key to DIR + [CR]
- ESC[2J - clear the screen & home cursor
- ESC[7m - all subsequent characters in reverse video
- ESC[7;5m - all subsequent characters reverse and blinking
- ESC[13;40f - move cursor to center of screen
- 16 - 25 ALT Q,W,E,R,T,Y,U,I,O,P
- 30 - 38 ALT A,S,D,F,G,H,J,K,L
- 44 - 40 ALT Z,X,C,V,B,N,M
- 59 - 68 [F1] through [F10]
- 84 - 93 SHIFT[F1] through SHIFT[F10]
- 94 - 103 [F1] through [F10]
- 104 - 113 ALT[F1] through ALT[F10]
Using the above ASCII Code to Extended Key conversion table and the redefine key syntax:
- prompt $e[0;##;“command”p {without trailing ENTER}
- prompt $e[0;##;“command”;13p {with trailing ENTER}
where ## = the ASCII code of the key to redefine and command = the command to assign to the Extended Key
