xterm

Console Virtual Terminal

To use the lib clone it in the shared folder in the odin root.

cd %ODIN_ROOT%
git clone ssh://git@gitea.ontogenesis.com:2222/odin/odin-xterm.git shared/xterm

Virtual Terminal

• https://learn.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences
• https://learn.microsoft.com/en-us/windows/console/registering-a-control-handler-function
• https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
• https://vt100.net/
• https://learn.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences#screen-colors
• https://en.wikipedia.org/wiki/ANSI_escape_code

Unicode

• https://home.unicode.org/
• https://unicode.org/charts/nameslist/
• https://unicode.org/charts/nameslist/n_2580.html
• https://en.wikipedia.org/wiki/Block_Elements
• https://en.wikipedia.org/wiki/Box_Drawing
• https://vt100.net/docs/vt220-rm/chapter2.html#T2-4

Terminal Sequences

ESC :: "\x1b"
CSI :: "\x1b["

Command	Sequence	Description
Cursor Up	ESC [ <n> A CUU	Cursor up by <n>
Cursor Down	ESC [ <n> B CUD	Cursor down by <n>
Cursor Forward	ESC [ <n> C CUF	Cursor forward (Right) by <n>
Cursor Backward	ESC [ <n> D CUB	Cursor backward (Left) by <n>
Cursor Next Line	ESC [ <n> E CNL	Cursor down <n> lines from current position
Cursor Previous Line	ESC [ <n> F CPL	Cursor up <n> lines from current position
Cursor Horizontal Absolute	ESC [ <n> G CHA	Cursor moves to <n>th position horizontally in the current line
Vertical Line Position Absolute	ESC [ <n> d VPA	Cursor moves to the <n>th position vertically in the current column
Cursor Position	ESC [ <y> ; <x> H CUP	*Cursor moves to <x>; <y> coordinate within the viewport, where <x> is the column of the <y> line
Horizontal Vertical Position	ESC [ <y> ; <x> f HVP	*Cursor moves to <x>; <y> coordinate within the viewport, where <x> is the column of the <y> line
Save Cursor – Ansi.sys emulation	ESC [ s ANSISYSSC	**With no parameters, performs a save cursor operation like DECSC
Restore Cursor – Ansi.sys emulation	ESC [ u ANSISYSRC	**With no parameters, performs a restore cursor operation like DECRC
Scroll Up	ESC [ <n> S SU	Scroll text up by <n>. Also known as pan down, new lines fill in from the bottom of the screen
Scroll Down	ESC [ <n> T SD	Scroll down by <n>. Also known as pan up, new lines fill in from the top of the screen
Modify Screen Colors	ESC ] 4 ; <i> ; rgb : <r> / <g> / <b> <ST>	Sets the screen color palette index <i> to the RGB values specified in <r>, <g>, <b>
Set foreground color	38 ; 2 ; <r> ; <g> ; <b>	Set foreground color to RGB value specified in <r>, <g>, <b> parameters*
Set background color	48 ; 2 ; <r> ; <g> ; <b>	Set background color to RGB value specified in <r>, <g>, <b> parameters*
Set foreground color	38 ; 5 ; <s>	Set foreground color to <s> index in 88 or 256 color table*
Set background color	48 ; 5 ; <s>	Set background color to <s> index in 88 or 256 color table*

Try some Set Graphics Rendition (SGR) terminal escape sequences

wprintf(L"\x1b[31mThis text has a red foreground using SGR.31.\r\n");
wprintf(L"\x1b[1mThis text has a bright (bold) red foreground using SGR.1 to affect the previous color setting.\r\n");
wprintf(L"\x1b[mThis text has returned to default colors using SGR.0 implicitly.\r\n");
wprintf(L"\x1b[34;46mThis text shows the foreground and background change at the same time.\r\n");
wprintf(L"\x1b[0mThis text has returned to default colors using SGR.0 explicitly.\r\n");
wprintf(L"\x1b[31;32;33;34;35;36;101;102;103;104;105;106;107mThis text attempts to apply many colors in the same command. Note the colors are applied from left to right so only the right-most option of foreground cyan (SGR.36) and background bright white (SGR.107) is effective.\r\n");
wprintf(L"\x1b[39mThis text has restored the foreground color only.\r\n");
wprintf(L"\x1b[49mThis text has restored the background color only.\r\n");

printf(CSI "0m"); // restore color

printf(ESC "(0"); // Enter Line drawing mode
printf(ESC "(B"); // exit line drawing mode

// Write the sequence for clearing the display.
printf("\x1b[2J")
printf("\x1b[3J")
printf("\x1b[H")