A2osX/.Docs/TERM.md

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A2osX Terminal Codes

Updated October 22, 2019

A2osX terminal capabilities are based off of the standard VT100 Terminal. This applies to users connected via Super Serial Cards, Telnet (via TelnetD server daemon) and Apple console (physical keyboard/screen). All programs can use this facility to create rich interactive text mode applications. This includes both programs written in Assembly or Scripts written for the Shell (SH). The table below lists the codes you can use in your applications and their function. Consult the A2osX Shell Developers Guide for information on using these codes in scripts. Note, the Apple Console implementation only supports a subset of the VT100 codes, these are noted in the last column as OK.

Esc Sequence Description DEC Code A2osX TERM
Esc[20h Set new line mode LMN OK
Esc[?1h Set cursor key to application DECCKM
Esc[?3h Set number of columns to 132 DECCOLM
Esc[?4h Set smooth scrolling DECSCLM
Esc[?5h Set reverse video on screen DECSCNM OK
Esc[?6h Set origin to relative DECOM
Esc[?7h Set auto-wrap mode DECAWM OK
Esc[?8h Set auto-repeat mode DECARM
Esc[?9h Set interlacing mode DECINLM
Esc[20l Set line feed mode LMN OK
Esc[?1l Set cursor key to cursor DECCKM
Esc[?2l Set VT52 (versus ANSI) DECANM
Esc[?3l Set number of columns to 80 DECCOLM
Esc[?4l Set jump scrolling DECSCLM
Esc[?5l Set normal video on screen DECSCNM OK
Esc[?6l Set origin to absolute DECOM
Esc[?7l Reset auto-wrap mode DECAWM OK
Esc[?8l Reset auto-repeat mode DECARM
Esc[?9l Reset interlacing mode DECINLM
Esc= Set alternate keypad mode DECKPAM
Esc> Set numeric keypad mode DECKPNM
Esc(A Set United Kingdom G0 character set setukg0 OK
Esc)A Set United Kingdom G1 character set setukg1 OK
Esc(B Set United States G0 character set setusg0 OK
Esc)B Set United States G1 character set setusg1 OK
Esc(0 Set G0 special chars. & line set setspecg0 OK
Esc)0 Set G1 special chars. & line set setspecg1 OK
Esc(1 Set G0 alternate character ROM setaltg0 OK
Esc)1 Set G1 alternate character ROM setaltg1 OK
Esc(2 Set G0 alt char ROM and spec. graphics setaltspecg0 OK
Esc)2 Set G1 alt char ROM and spec. graphics setaltspecg1 OK
EscN Set single shift 2 SS2
EscO Set single shift 3 SS3
Esc[m Turn off character attributes SGR0 OK
Esc[0m Turn off character attributes SGR0 OK
Esc[1m Turn bold mode on SGR1
Esc[2m Turn low intensity mode on SGR2
Esc[4m Turn underline mode on SGR4
Esc[5m Turn blinking mode on SGR5
Esc[7m Turn reverse video on SGR7 OK
Esc[8m Turn invisible text mode on SGR8
Esc[Line;Liner Set top and bottom lines of a window DECSTBM OK
Esc[ValueA Move cursor up n lines CUU
Esc[ValueB Move cursor down n lines CUD
Esc[ValueC Move cursor right n lines CUF
Esc[ValueD Move cursor left n lines CUB
Esc[H Move cursor to upper left corner cursorhome
Esc[;H Move cursor to upper left corner cursorhome
Esc[Line;ColumnH Move cursor to screen location v,h CUP OK
Esc[f Move cursor to upper left corner hvhome
Esc[;f Move cursor to upper left corner hvhome
Esc[Line;Columnf Move cursor to screen location v,h CUP
EscD Move/scroll window up one line IND
EscM Move/scroll window down one line RI
EscE Move to next line NEL
Esc7 Save cursor position and attributes DECSC
Esc8 Restore cursor position and attributes DECSC
EscH Set a tab at the current column HTS
Esc[g Clear a tab at the current column TBC
Esc[0g Clear a tab at the current column TBC
Esc[3g Clear all tabs TBC
Esc#3 Double-height letters, top half DECDHL
Esc#4 Double-height letters, bottom half DECDHL
Esc#5 Single width, single height letters DECSWL
Esc#6 Double width, single height letters DECDWL
Esc[K Clear line from cursor right EL0 OK
Esc[0K Clear line from cursor right EL0 OK
Esc[1K Clear line from cursor left EL1 OK
Esc[2K Clear entire line EL2 OK
Esc[J Clear screen from cursor down ED0 OK
Esc[0J Clear screen from cursor down ED0 OK
Esc[1J Clear screen from cursor up ED1 OK
Esc[2J Clear entire screen ED2 OK
Esc5n Device status report DSR
Esc0n Response: terminal is OK DSR
Esc3n Response: terminal is not OK DSR
Esc6n Get cursor position DSR OK
EscLine;ColumnR Response: cursor is at v,h CPR OK
Esc[c Identify what terminal type DA
Esc[0c Identify what terminal type (another) DA
Esc[?1;Value0c Response: terminal type code n DA
Escc Reset terminal to initial state RIS OK

License

A2osX is licensed under the GNU General Pulic License.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

The full A2osX license can be found Here.

Copyright 2015 - 2019, Remy Gibert and the A2osX contributors.