Adds most of the toolsHEADmaster

16 files changed, 2634 insertions, 0 deletions

diff --git a/v_windows/v/vlib/term/README.md b/v_windows/v/vlib/term/README.md
new file mode 100644
index 0000000..f9fcb9e
--- /dev/null
+++ b/v_windows/v/vlib/term/README.md
@@ -0,0 +1,85 @@
+# Quickstart
+
+The V `term` module is a module designed to provide the building blocks
+for building very simple TUI apps.
+For more complex apps, you should really look at the `term.input` module,
+as it includes terminal events, is easier to use and is much more performant for large draws.
+
+# Use
+
+You can use the `term` module to either color the output on a terminal
+or to decide on where to put the output in your terminal.
+
+For example let's make a simple program which prints colored text in the middle of the terminal.
+
+```v
+import term
+import os
+
+fn main() {
+	term.clear() // clears the content in the terminal
+	width, height := term.get_terminal_size() // get the size of the terminal
+	term.set_cursor_position(x: width / 2, y: height / 2) // now we point the cursor to the middle of  the terminal
+	println(term.strikethrough(term.bright_green('hello world'))) // Print green text
+	term.set_cursor_position(x: 0, y: height) // Sets the position of the cursor to the bottom of the terminal
+	// Keep prompting until the user presses the q key
+	for {
+		if var := os.input_opt('press q to quit: ') {
+			if var != 'q' {
+				continue
+			}
+			break
+		}
+		println('')
+		break
+	}
+	println('Goodbye.')
+}
+```
+
+This simple program covers many of the principal aspects of the `term ` module.
+
+# API
+
+Here are some functions you should be aware of in the `term `module:
+
+```v oksyntax
+import term
+
+// returns the height and the width of the terminal
+width, height := term.get_terminal_size()
+// returns the string as green text to be printed on stdout
+term.ok_message('cool')
+// returns the string as red text to be printed on stdout
+term.fail_message('oh, no')
+// returns the string as yellow text to be printed on stdout
+term.warning_message('be warned')
+// clears the entire terminal and leaves a blank one
+term.clear()
+// colors the output of the output, the available colors are:
+// black,blue,yellow,green,cyan,gray,bright_blue,bright_green,bright_red,bright_black,bright_cyan
+term.yellow('submarine')
+// transforms the given string into bold text
+term.bold('and beautiful')
+// puts a strikethrough into the given string
+term.strikethrough('the core of the problem')
+// underlines the given string
+term.underline('important')
+// colors the background of the output following the given color
+// the available colors are: black, blue, yellow, green, cyan, gray
+term.bg_green('field')
+// sets the position of the cursor at a given place in the terminal
+term.set_cursor_position(x: 5, y: 10)
+// moves the cursor up
+term.cursor_up()
+// moves the cursor down
+term.cursor_down()
+// moves the cursor to the right
+term.cursor_forward()
+// moves the cursor to the left
+term.cursor_back()
+// shows the cursor
+term.show_cursor()
+// hides the cursor
+term.hide_cursor()
+```
diff --git a/v_windows/v/vlib/term/colors.v b/v_windows/v/vlib/term/colors.v
new file mode 100644
index 0000000..f89d56b
--- /dev/null
+++ b/v_windows/v/vlib/term/colors.v
@@ -0,0 +1,198 @@
+// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module term
+
+pub fn format(msg string, open string, close string) string {
+	return '\x1b[${open}m$msg\x1b[${close}m'
+}
+
+pub fn format_rgb(r int, g int, b int, msg string, open string, close string) string {
+	return '\x1b[$open;2;$r;$g;${b}m$msg\x1b[${close}m'
+}
+
+pub fn rgb(r int, g int, b int, msg string) string {
+	return format_rgb(r, g, b, msg, '38', '39')
+}
+
+pub fn bg_rgb(r int, g int, b int, msg string) string {
+	return format_rgb(r, g, b, msg, '48', '49')
+}
+
+pub fn hex(hex int, msg string) string {
+	return format_rgb(hex >> 16, hex >> 8 & 0xFF, hex & 0xFF, msg, '38', '39')
+}
+
+pub fn bg_hex(hex int, msg string) string {
+	return format_rgb(hex >> 16, hex >> 8 & 0xFF, hex & 0xFF, msg, '48', '49')
+}
+
+pub fn bg_black(msg string) string {
+	return format(msg, '40', '49')
+}
+
+pub fn bright_bg_black(msg string) string {
+	return format(msg, '100', '49')
+}
+
+pub fn bg_blue(msg string) string {
+	return format(msg, '44', '49')
+}
+
+pub fn bright_bg_blue(msg string) string {
+	return format(msg, '104', '49')
+}
+
+pub fn bg_cyan(msg string) string {
+	return format(msg, '46', '49')
+}
+
+pub fn bright_bg_cyan(msg string) string {
+	return format(msg, '106', '49')
+}
+
+pub fn bg_green(msg string) string {
+	return format(msg, '42', '49')
+}
+
+pub fn bright_bg_green(msg string) string {
+	return format(msg, '102', '49')
+}
+
+pub fn bg_magenta(msg string) string {
+	return format(msg, '45', '49')
+}
+
+pub fn bright_bg_magenta(msg string) string {
+	return format(msg, '105', '49')
+}
+
+pub fn bg_red(msg string) string {
+	return format(msg, '41', '49')
+}
+
+pub fn bright_bg_red(msg string) string {
+	return format(msg, '101', '49')
+}
+
+pub fn bg_white(msg string) string {
+	return format(msg, '47', '49')
+}
+
+pub fn bright_bg_white(msg string) string {
+	return format(msg, '107', '49')
+}
+
+pub fn bg_yellow(msg string) string {
+	return format(msg, '43', '49')
+}
+
+pub fn bright_bg_yellow(msg string) string {
+	return format(msg, '103', '49')
+}
+
+pub fn black(msg string) string {
+	return format(msg, '30', '39')
+}
+
+pub fn bright_black(msg string) string {
+	return format(msg, '90', '39')
+}
+
+pub fn blue(msg string) string {
+	return format(msg, '34', '39')
+}
+
+pub fn bright_blue(msg string) string {
+	return format(msg, '94', '39')
+}
+
+pub fn bold(msg string) string {
+	return format(msg, '1', '22')
+}
+
+pub fn cyan(msg string) string {
+	return format(msg, '36', '39')
+}
+
+pub fn bright_cyan(msg string) string {
+	return format(msg, '96', '39')
+}
+
+pub fn dim(msg string) string {
+	return format(msg, '2', '22')
+}
+
+pub fn green(msg string) string {
+	return format(msg, '32', '39')
+}
+
+pub fn bright_green(msg string) string {
+	return format(msg, '92', '39')
+}
+
+pub fn gray(msg string) string {
+	return bright_black(msg)
+}
+
+pub fn hidden(msg string) string {
+	return format(msg, '8', '28')
+}
+
+pub fn italic(msg string) string {
+	return format(msg, '3', '23')
+}
+
+pub fn inverse(msg string) string {
+	return format(msg, '7', '27')
+}
+
+pub fn magenta(msg string) string {
+	return format(msg, '35', '39')
+}
+
+pub fn bright_magenta(msg string) string {
+	return format(msg, '95', '39')
+}
+
+pub fn reset(msg string) string {
+	return format(msg, '0', '0')
+}
+
+pub fn red(msg string) string {
+	return format(msg, '31', '39')
+}
+
+pub fn bright_red(msg string) string {
+	return format(msg, '91', '39')
+}
+
+pub fn strikethrough(msg string) string {
+	return format(msg, '9', '29')
+}
+
+pub fn underline(msg string) string {
+	return format(msg, '4', '24')
+}
+
+pub fn white(msg string) string {
+	return format(msg, '37', '39')
+}
+
+pub fn bright_white(msg string) string {
+	return format(msg, '97', '39')
+}
+
+pub fn yellow(msg string) string {
+	return format(msg, '33', '39')
+}
+
+pub fn bright_yellow(msg string) string {
+	return format(msg, '93', '39')
+}
+
+// highlight_command highlights the command with an on-brand background
+// to make CLI commands immediately recognizable.
+pub fn highlight_command(command string) string {
+	return bright_white(bg_cyan(' $command '))
+}
diff --git a/v_windows/v/vlib/term/control.v b/v_windows/v/vlib/term/control.v
new file mode 100644
index 0000000..377cc42
--- /dev/null
+++ b/v_windows/v/vlib/term/control.v
@@ -0,0 +1,108 @@
+// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module term
+
+// Sources for ANSI Control Sequences
+// https://github.com/RajeshPatkarInstitute/Panim
+// https://www.gnu.org/software/screen/manual/html_node/Control-Sequences.html
+// https://en.wikipedia.org/wiki/ANSI_escape_code
+// Support for Windows
+// https://en.wikipedia.org/wiki/ANSI.SYS
+// #include <windows.h>
+// C.SetConsoleMode(C.ENABLE_VIRTUAL_TERMINAL_INPUT)
+// Setting cursor to the given position
+// x is the x coordinate
+// y is the y coordinate
+pub fn set_cursor_position(c Coord) {
+	print('\x1b[$c.y;$c.x' + 'H')
+}
+
+// n is number of cells
+// direction: A is up / North
+// direction: B is down / South
+// direction: C is forward / East
+// direction: D is backward / West
+pub fn move(n int, direction string) {
+	print('\x1b[$n$direction')
+}
+
+pub fn cursor_up(n int) {
+	move(n, 'A')
+}
+
+pub fn cursor_down(n int) {
+	move(n, 'B')
+}
+
+pub fn cursor_forward(n int) {
+	move(n, 'C')
+}
+
+pub fn cursor_back(n int) {
+	move(n, 'D')
+}
+
+// type: 0 -> current cursor position to end of the screen
+// type: 1 -> current cursor position to beginning of the screen
+// type: 2 -> clears entire screen
+// type: 3 -> clears entire screen and also delete scrollback buffer
+
+pub fn erase_display(t string) {
+	print('\x1b[' + t + 'J')
+}
+
+pub fn erase_toend() {
+	erase_display('0')
+}
+
+pub fn erase_tobeg() {
+	erase_display('1')
+}
+
+// clears entire screen and returns cursor to top left-corner
+pub fn erase_clear() {
+	print('\033[H\033[J')
+}
+
+pub fn erase_del_clear() {
+	erase_display('3')
+}
+
+// type: 0 -> current cursor position to end of the line
+// type: 1 -> current cursor position to beginning of the line
+// type: 2 -> clears entire line
+// Note: Cursor position does not change
+pub fn erase_line(t string) {
+	print('\x1b[' + t + 'K')
+}
+
+pub fn erase_line_toend() {
+	erase_line('0')
+}
+
+pub fn erase_line_tobeg() {
+	erase_line('1')
+}
+
+pub fn erase_line_clear() {
+	erase_line('2')
+}
+
+// Will make cursor appear if not visible
+pub fn show_cursor() {
+	print('\x1b[?25h')
+}
+
+// Will make cursor invisible
+pub fn hide_cursor() {
+	print('\x1b[?25l')
+}
+
+// clear_previous_line - useful for progressbars.
+// It moves the cursor to start of line, then 1 line above,
+// then erases the line. In effect the next println will overwrite
+// the previous content.
+pub fn clear_previous_line() {
+	print('\r\x1b[1A\x1b[2K')
+}
diff --git a/v_windows/v/vlib/term/term.js.v b/v_windows/v/vlib/term/term.js.v
new file mode 100644
index 0000000..be85eca
--- /dev/null
+++ b/v_windows/v/vlib/term/term.js.v
@@ -0,0 +1,8 @@
+module term
+
+// get_terminal_size returns a number of colums and rows of terminal window.
+pub fn get_terminal_size() (int, int) {
+	// TODO Find a way to get proper width & height of the terminal
+	// on a Javascript environment
+	return default_columns_size, default_rows_size
+}
diff --git a/v_windows/v/vlib/term/term.v b/v_windows/v/vlib/term/term.v
new file mode 100644
index 0000000..460c0b1
--- /dev/null
+++ b/v_windows/v/vlib/term/term.v
@@ -0,0 +1,198 @@
+module term
+
+import os
+import strings.textscanner
+
+const (
+	default_columns_size = 80
+	default_rows_size    = 25
+)
+
+// Coord - used by term.get_cursor_position and term.set_cursor_position
+pub struct Coord {
+pub mut:
+	x int
+	y int
+}
+
+// can_show_color_on_stdout returns true if colors are allowed in stdout;
+// returns false otherwise.
+pub fn can_show_color_on_stdout() bool {
+	return supports_escape_sequences(1)
+}
+
+// can_show_color_on_stderr returns true if colors are allowed in stderr;
+// returns false otherwise.
+pub fn can_show_color_on_stderr() bool {
+	return supports_escape_sequences(2)
+}
+
+// failed returns a bold white on red version of the string `s`
+// If colors are not allowed, returns the string `s`
+pub fn failed(s string) string {
+	if can_show_color_on_stdout() {
+		return bg_red(bold(white(s)))
+	}
+	return s
+}
+
+// ok_message returns a colored string with green color.
+// If colors are not allowed, returns a given string.
+pub fn ok_message(s string) string {
+	if can_show_color_on_stdout() {
+		return green(' $s ')
+	}
+	return s
+}
+
+// fail_message returns a colored string with red color.
+// If colors are not allowed, returns a given string.
+pub fn fail_message(s string) string {
+	return failed(' $s ')
+}
+
+// warn_message returns a colored string with yellow color.
+// If colors are not allowed, returns a given string.
+pub fn warn_message(s string) string {
+	if can_show_color_on_stdout() {
+		return bright_yellow(' $s ')
+	}
+	return s
+}
+
+// colorize returns a colored string by running the specified `cfn` over
+// the message `s`, only if colored output is supported by the terminal.
+// Example: term.colorize(term.yellow, 'the message')
+pub fn colorize(cfn fn (string) string, s string) string {
+	if can_show_color_on_stdout() {
+		return cfn(s)
+	}
+	return s
+}
+
+// strip_ansi removes any ANSI sequences in the `text`
+pub fn strip_ansi(text string) string {
+	// This is a port of https://github.com/kilobyte/colorized-logs/blob/master/ansi2txt.c
+	// \e, [, 1, m, a, b, c, \e, [, 2, 2, m => abc
+	mut input := textscanner.new(text)
+	mut output := []byte{cap: text.len}
+	mut ch := 0
+	for ch != -1 {
+		ch = input.next()
+		if ch == 27 {
+			ch = input.next()
+			if ch == `[` {
+				for {
+					ch = input.next()
+					if ch in [`;`, `?`] || (ch >= `0` && ch <= `9`) {
+						continue
+					}
+					break
+				}
+			} else if ch == `]` {
+				ch = input.next()
+				if ch >= `0` && ch <= `9` {
+					for {
+						ch = input.next()
+						if ch == -1 || ch == 7 {
+							break
+						}
+						if ch == 27 {
+							ch = input.next()
+							break
+						}
+					}
+				}
+			} else if ch == `%` {
+				ch = input.next()
+			}
+		} else if ch != -1 {
+			output << byte(ch)
+		}
+	}
+	return output.bytestr()
+}
+
+// h_divider returns a horizontal divider line with a dynamic width,
+// that depends on the current terminal settings.
+// If an empty string is passed in, print enough spaces to make a new line
+pub fn h_divider(divider string) string {
+	cols, _ := get_terminal_size()
+	mut result := ''
+	if divider.len > 0 {
+		result = divider.repeat(1 + (cols / divider.len))
+	} else {
+		result = ' '.repeat(1 + cols)
+	}
+	return result[0..cols]
+}
+
+// header_left returns a horizontal divider line with a title text on the left.
+// e.g: term.header_left('TITLE', '=')
+// ==== TITLE =========================
+pub fn header_left(text string, divider string) string {
+	plain_text := strip_ansi(text)
+	xcols, _ := get_terminal_size()
+	cols := imax(1, xcols)
+	relement := if divider.len > 0 { divider } else { ' ' }
+	hstart := relement.repeat(4)[0..4]
+	remaining_cols := (cols - (hstart.len + 1 + plain_text.len + 1))
+	hend := relement.repeat((remaining_cols + 1) / relement.len)[0..remaining_cols]
+	return '$hstart $text $hend'
+}
+
+// header returns a horizontal divider line with a centered text in the middle.
+// e.g: term.header('TEXT', '=')
+// =============== TEXT ===============
+pub fn header(text string, divider string) string {
+	if text.len == 0 {
+		return h_divider(divider)
+	}
+	xcols, _ := get_terminal_size()
+	cols := imax(1, xcols)
+	tlimit := imax(1, if cols > text.len + 2 + 2 * divider.len {
+		text.len
+	} else {
+		cols - 3 - 2 * divider.len
+	})
+	tlimit_alligned := if (tlimit % 2) != (cols % 2) { tlimit + 1 } else { tlimit }
+	tstart := imax(0, (cols - tlimit_alligned) / 2)
+	mut ln := ''
+	if divider.len > 0 {
+		ln = divider.repeat(1 + cols / divider.len)[0..cols]
+	} else {
+		ln = ' '.repeat(1 + cols)
+	}
+	if ln.len == 1 {
+		return ln + ' ' + text[0..tlimit] + ' ' + ln
+	}
+	return ln[0..tstart] + ' ' + text[0..tlimit] + ' ' + ln[tstart + tlimit + 2..cols]
+}
+
+fn imax(x int, y int) int {
+	return if x > y { x } else { y }
+}
+
+fn supports_escape_sequences(fd int) bool {
+	vcolors_override := os.getenv('VCOLORS')
+	if vcolors_override == 'always' {
+		return true
+	}
+	if vcolors_override == 'never' {
+		return false
+	}
+	env_term := os.getenv('TERM')
+	if env_term == 'dumb' {
+		return false
+	}
+	$if windows {
+		env_conemu := os.getenv('ConEmuANSI')
+		if env_conemu == 'ON' {
+			return true
+		}
+		// 4 is enable_virtual_terminal_processing
+		return (os.is_atty(fd) & 0x0004) > 0
+	} $else {
+		return os.is_atty(fd) > 0
+	}
+}
diff --git a/v_windows/v/vlib/term/term_nix.c.v b/v_windows/v/vlib/term/term_nix.c.v
new file mode 100644
index 0000000..45a0a9b
--- /dev/null
+++ b/v_windows/v/vlib/term/term_nix.c.v
@@ -0,0 +1,105 @@
+module term
+
+import os
+
+#include <sys/ioctl.h>
+#include <termios.h> // TIOCGWINSZ
+
+pub struct C.winsize {
+pub:
+	ws_row    u16
+	ws_col    u16
+	ws_xpixel u16
+	ws_ypixel u16
+}
+
+fn C.ioctl(fd int, request u64, arg voidptr) int
+
+// get_terminal_size returns a number of colums and rows of terminal window.
+pub fn get_terminal_size() (int, int) {
+	if os.is_atty(1) <= 0 || os.getenv('TERM') == 'dumb' {
+		return default_columns_size, default_rows_size
+	}
+	w := C.winsize{}
+	C.ioctl(1, u64(C.TIOCGWINSZ), &w)
+	return int(w.ws_col), int(w.ws_row)
+}
+
+// get_cursor_position returns a Coord containing the current cursor position
+pub fn get_cursor_position() Coord {
+	if os.is_atty(1) <= 0 || os.getenv('TERM') == 'dumb' {
+		return Coord{
+			x: 0
+			y: 0
+		}
+	}
+	// TODO: use termios.h, C.tcgetattr & C.tcsetattr directly,
+	// instead of using `stty`
+	mut oldsettings := os.execute('stty -g')
+	if oldsettings.exit_code < 0 {
+		oldsettings = os.Result{}
+	}
+	os.system('stty -echo -icanon time 0')
+	print('\033[6n')
+	mut ch := int(0)
+	mut i := 0
+	// ESC [ YYY `;` XXX `R`
+	mut reading_x := false
+	mut reading_y := false
+	mut x := 0
+	mut y := 0
+	for {
+		ch = C.getchar()
+		b := byte(ch)
+		i++
+		if i >= 15 {
+			panic('C.getchar() called too many times')
+		}
+		// state management:
+		if b == `R` {
+			break
+		}
+		if b == `[` {
+			reading_y = true
+			reading_x = false
+			continue
+		}
+		if b == `;` {
+			reading_y = false
+			reading_x = true
+			continue
+		}
+		// converting string vals to ints:
+		if reading_x {
+			x *= 10
+			x += (b - byte(`0`))
+		}
+		if reading_y {
+			y *= 10
+			y += (b - byte(`0`))
+		}
+	}
+	// restore the old terminal settings:
+	os.system('stty $oldsettings.output')
+	return Coord{
+		x: x
+		y: y
+	}
+}
+
+// set_terminal_title change the terminal title
+pub fn set_terminal_title(title string) bool {
+	if os.is_atty(1) <= 0 || os.getenv('TERM') == 'dumb' {
+		return true
+	}
+	print('\033]0')
+	print(title)
+	print('\007')
+	return true
+}
+
+// clear clears current terminal screen.
+pub fn clear() {
+	print('\x1b[2J')
+	print('\x1b[H')
+}
diff --git a/v_windows/v/vlib/term/term_test.v b/v_windows/v/vlib/term/term_test.v
new file mode 100644
index 0000000..00f9293
--- /dev/null
+++ b/v_windows/v/vlib/term/term_test.v
@@ -0,0 +1,115 @@
+import os
+import term
+
+fn test_get_terminal_size() {
+	cols, _ := term.get_terminal_size()
+	assert cols > 0
+}
+
+fn test_h_divider() {
+	divider := term.h_divider('-')
+	assert divider.len > 0
+	assert divider[0] == `-`
+	assert divider[divider.len - 1] == `-`
+}
+
+fn test_h_divider_multiple_characters() {
+	xdivider := term.h_divider('abc')
+	assert xdivider.len > 0
+	assert xdivider.contains('abcabc')
+}
+
+fn test_header() {
+	divider := term.h_divider('-')
+	term_width := divider.len
+	assert term_width > 0
+	empty_header := term.header('', '-')
+	short_header := term.header('reasonable header', '-')
+	very_long_header := term.header(['abc'].repeat(500).join(' '), '-')
+	very_long_header_2 := term.header(['abcd'].repeat(500).join(' '), '-')
+	/*
+	eprintln(divider)
+	eprintln(empty_header)
+	eprintln(short_header)
+	eprintln(term.header('another longer header', '_-/\\'))
+	eprintln(term.header('another longer header', '-'))
+	eprintln(term.header('short', '-'))
+	eprintln(term.header('12345', '-'))
+	eprintln(term.header('1234', '-'))
+	eprintln(term.header('123', '-'))
+	eprintln(term.header('12', '-'))
+	eprintln(term.header('1', '-'))
+	eprintln(very_long_header)
+	eprintln(divider)
+	eprintln(very_long_header_2)
+	eprintln(term.header(['abcd'].repeat(500).join(' '), '_-/\\'))
+	eprintln(term.header(['abcd'].repeat(500).join(' '), '_-//'))
+	eprintln(term.header('1', '_-/\\\/'))
+	eprintln(term.header('12', '_-/\\\/'))
+	eprintln(term.header('123', '_-/\\\/'))
+	eprintln(term.header('1234', '_-/\\/\\'))
+	eprintln(term.header('', '-'))
+	*/
+	assert term_width == empty_header.len
+	assert term_width == short_header.len
+	assert term_width == very_long_header.len
+	assert term_width == very_long_header_2.len
+	assert term_width == term.header('1234', '_-/\\/\\').len
+}
+
+fn test_get_cursor_position() {
+	original_position := term.get_cursor_position()
+	cursor_position_1 := term.get_cursor_position()
+	assert original_position.x == cursor_position_1.x
+	assert original_position.y == cursor_position_1.y
+	//
+	term.set_cursor_position(
+		x: 10
+		y: 11
+	)
+	cursor_position_2 := term.get_cursor_position()
+	//
+	term.set_cursor_position(
+		x: 5
+		y: 6
+	)
+	cursor_position_3 := term.get_cursor_position()
+	//
+	term.set_cursor_position(original_position)
+	eprintln('original_position: $original_position')
+	eprintln('cursor_position_2: $cursor_position_2')
+	eprintln('cursor_position_3: $cursor_position_3')
+	// 0,0 is returned on dumb terminals
+	if cursor_position_2.x == 0 && cursor_position_2.y == 0 {
+		return
+	}
+	if cursor_position_3.x == 0 && cursor_position_3.y == 0 {
+		return
+	}
+	assert cursor_position_2.x == 10
+	assert cursor_position_2.y == 11
+	assert cursor_position_3.x == 5
+	assert cursor_position_3.y == 6
+}
+
+fn test_set_terminal_title() {
+	// do not change the current terminal title outside of CI:
+	if os.getenv('CI') != 'true' {
+		return
+	}
+	title_change := term.set_terminal_title('v is awesome!')
+	assert title_change == true
+}
+
+fn test_strip_ansi() {
+	strings := [
+		'abc',
+		term.bold('abc'),
+		term.yellow('abc'),
+		term.bold(term.red('abc')),
+		term.strikethrough(term.inverse(term.dim(term.bold(term.bright_bg_blue('abc'))))),
+	]
+	for s in strings {
+		assert term.strip_ansi(s) == 'abc'
+	}
+}
diff --git a/v_windows/v/vlib/term/term_windows.c.v b/v_windows/v/vlib/term/term_windows.c.v
new file mode 100644
index 0000000..1d2f032
--- /dev/null
+++ b/v_windows/v/vlib/term/term_windows.c.v
@@ -0,0 +1,125 @@
+module term
+
+import os
+
+[typedef]
+struct C.COORD {
+mut:
+	X i16
+	Y i16
+}
+
+[typedef]
+struct C.SMALL_RECT {
+mut:
+	Left   u16
+	Top    u16
+	Right  u16
+	Bottom u16
+}
+
+// win: CONSOLE_SCREEN_BUFFER_INFO
+// https://docs.microsoft.com/en-us/windows/console/console-screen-buffer-info-str
+[typedef]
+struct C.CONSOLE_SCREEN_BUFFER_INFO {
+mut:
+	dwSize              C.COORD
+	dwCursorPosition    C.COORD
+	wAttributes         u16
+	srWindow            C.SMALL_RECT
+	dwMaximumWindowSize C.COORD
+}
+
+union C.uChar {
+mut:
+	UnicodeChar rune
+	AsciiChar   byte
+}
+
+[typedef]
+struct C.CHAR_INFO {
+mut:
+	Char       C.uChar
+	Attributes u16
+}
+
+// ref - https://docs.microsoft.com/en-us/windows/console/getconsolescreenbufferinfo
+fn C.GetConsoleScreenBufferInfo(handle C.HANDLE, info &C.CONSOLE_SCREEN_BUFFER_INFO) bool
+
+// ref - https://docs.microsoft.com/en-us/windows/console/setconsoletitle
+fn C.SetConsoleTitle(title &u16) bool
+
+// ref - https://docs.microsoft.com/en-us/windows/console/setconsolecursorposition
+fn C.SetConsoleCursorPosition(handle C.HANDLE, coord C.COORD) bool
+
+// ref - https://docs.microsoft.com/en-us/windows/console/scrollconsolescreenbuffer
+fn C.ScrollConsoleScreenBuffer(output C.HANDLE, scroll_rect &C.SMALL_RECT, clip_rect &C.SMALL_RECT, des C.COORD, fill &C.CHAR_INFO) bool
+
+// get_terminal_size returns a number of colums and rows of terminal window.
+pub fn get_terminal_size() (int, int) {
+	if os.is_atty(1) > 0 && os.getenv('TERM') != 'dumb' {
+		info := C.CONSOLE_SCREEN_BUFFER_INFO{}
+		if C.GetConsoleScreenBufferInfo(C.GetStdHandle(C.STD_OUTPUT_HANDLE), &info) {
+			columns := int(info.srWindow.Right - info.srWindow.Left + 1)
+			rows := int(info.srWindow.Bottom - info.srWindow.Top + 1)
+			return columns, rows
+		}
+	}
+	return default_columns_size, default_rows_size
+}
+
+// get_cursor_position returns a Coord containing the current cursor position
+pub fn get_cursor_position() Coord {
+	mut res := Coord{}
+	if os.is_atty(1) > 0 && os.getenv('TERM') != 'dumb' {
+		info := C.CONSOLE_SCREEN_BUFFER_INFO{}
+		if C.GetConsoleScreenBufferInfo(C.GetStdHandle(C.STD_OUTPUT_HANDLE), &info) {
+			res.x = info.dwCursorPosition.X
+			res.y = info.dwCursorPosition.Y
+		}
+	}
+	return res
+}
+
+// set_terminal_title change the terminal title
+pub fn set_terminal_title(title string) bool {
+	title_change := C.SetConsoleTitle(title.to_wide())
+	return title_change
+}
+
+// clear clears current terminal screen.
+// Implementation taken from https://docs.microsoft.com/en-us/windows/console/clearing-the-screen#example-2.
+pub fn clear() {
+	hconsole := C.GetStdHandle(C.STD_OUTPUT_HANDLE)
+	mut csbi := C.CONSOLE_SCREEN_BUFFER_INFO{}
+	mut scrollrect := C.SMALL_RECT{}
+	mut scrolltarget := C.COORD{}
+	mut fill := C.CHAR_INFO{}
+
+	// Get the number of character cells in the current buffer.
+	if !C.GetConsoleScreenBufferInfo(hconsole, &csbi) {
+		return
+	}
+	// Scroll the rectangle of the entire buffer.
+	scrollrect.Left = 0
+	scrollrect.Top = 0
+	scrollrect.Right = u16(csbi.dwSize.X)
+	scrollrect.Bottom = u16(csbi.dwSize.Y)
+
+	// Scroll it upwards off the top of the buffer with a magnitude of the entire height.
+	scrolltarget.X = 0
+	scrolltarget.Y = (0 - csbi.dwSize.Y)
+
+	// Fill with empty spaces with the buffer's default text attribute.
+	fill.Char.UnicodeChar = rune(` `)
+	fill.Attributes = csbi.wAttributes
+
+	// Do the scroll
+	C.ScrollConsoleScreenBuffer(hconsole, &scrollrect, C.NULL, scrolltarget, &fill)
+
+	// Move the cursor to the top left corner too.
+	csbi.dwCursorPosition.X = 0
+	csbi.dwCursorPosition.Y = 0
+
+	C.SetConsoleCursorPosition(hconsole, csbi.dwCursorPosition)
+}
diff --git a/v_windows/v/vlib/term/ui/README.md b/v_windows/v/vlib/term/ui/README.md
new file mode 100644
index 0000000..6bce054
--- /dev/null
+++ b/v_windows/v/vlib/term/ui/README.md
@@ -0,0 +1,99 @@
+## `term.ui`
+
+A V module for designing terminal UI apps
+
+#### Quickstart
+
+```v
+import term.ui as tui
+
+struct App {
+mut:
+	tui &tui.Context = 0
+}
+
+fn event(e &tui.Event, x voidptr) {
+	mut app := &App(x)
+	println(e)
+	if e.typ == .key_down && e.code == .escape {
+		exit(0)
+	}
+}
+
+fn frame(x voidptr) {
+	mut app := &App(x)
+
+	app.tui.clear()
+	app.tui.set_bg_color(r: 63, g: 81, b: 181)
+	app.tui.draw_rect(20, 6, 41, 10)
+	app.tui.draw_text(24, 8, 'Hello from V!')
+	app.tui.set_cursor_position(0, 0)
+
+	app.tui.reset()
+	app.tui.flush()
+}
+
+mut app := &App{}
+app.tui = tui.init(
+	user_data: app
+	event_fn: event
+	frame_fn: frame
+	hide_cursor: true
+)
+app.tui.run() ?
+```
+
+See the `/examples/term.ui/` folder for more usage examples.
+
+#### Configuration
+
+- `user_data voidptr` - a pointer to any `user_data`, it will be passed as the last argument to
+    each callback. Used for accessing your app context from the different callbacks.
+- `init_fn fn(voidptr)` - a callback that will be called after initialization
+    and before the first event / frame. Useful for initializing any user data.
+- `frame_fn fn(voidptr)` - a callback that will be fired on each frame,
+    at a rate of `frame_rate` frames per second.
+`event_fn fn(&Event, voidptr)` - a callback that will be fired for every event received.
+- `cleanup_fn fn(voidptr)` - a callback that will be fired once, before the application exits.
+- `fail_fn  fn(string)` - a callback that will be fired
+    if a fatal error occurs during app initialization.
+- `buffer_size int = 256` - the internal size of the read buffer.
+    Increasing it may help in case you're missing events, but you probably shouldn't lower
+    this value unless you make sure you're still receiving all events. In general,
+    higher frame rates work better with lower buffer sizes, and vice versa.
+- `frame_rate int = 30` - the number of times per second that the `frame` callback will be fired.
+    30fps is a nice balance between smoothness and performance,
+    but you can increase or lower it as you wish.
+- `hide_cursor bool` - whether to hide the mouse cursor. Useful if you want to use your own.
+- `capture_events bool` - sets the terminal into raw mode, which makes it intercept some
+    escape codes such as `ctrl + c` and `ctrl + z`.
+    Useful if you want to use those key combinations in your app.
+- `window_title string` - sets the title of the terminal window.
+    This may be changed later, by calling the `set_window_title()` method.
+- `reset []int = [1, 2, 3, 4, 6, 7, 8, 9, 11, 13, 14, 15, 19]` - a list of reset signals,
+    to setup handlers to cleanup the terminal state when they're received.
+    You should not need to change this, unless you know what you're doing.
+
+All of these fields may be omitted, in which case, the default value will be used.
+In the case of the various callbacks, they will not be fired if a handler has not been specified.
+
+
+#### FAQ
+
+Q: My terminal (doesn't receive events / doesn't print anything / prints gibberish characters),
+what's up with that?
+A: Please check if your terminal. The module has been tested with `xterm`-based terminals on Linux
+(like `gnome-terminal` and `konsole`), and `Terminal.app` and `iterm2` on macOS.
+If your terminal does not work, open an issue with the output of `echo $TERM`.
+
+Q: There are screen tearing issues when doing large prints
+A: This is an issue with how terminals render frames,
+as they may decide to do so in the middle of receiving a frame,
+and cannot be fully fixed unless your console implements the [synchronized updates spec](https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec).
+It can be reduced *drastically*, though, by using the rendering methods built in to the module,
+and by only painting frames when your app's content has actually changed.
+
+Q: Why does the module only emit `keydown` events, and not `keyup` like `sokol`/`gg`?
+A: It's because of the way terminals emit events. Every key event is received as a keypress,
+and there isn't a way of telling terminals to send keyboard events differently,
+nor a reliable way of converting these into `keydown` / `keyup` events.
diff --git a/v_windows/v/vlib/term/ui/color.v b/v_windows/v/vlib/term/ui/color.v
new file mode 100644
index 0000000..3e0a0bb
--- /dev/null
+++ b/v_windows/v/vlib/term/ui/color.v
@@ -0,0 +1,88 @@
+// radare - LGPL - Copyright 2013-2020 - pancake, xarkes
+// ansi 256 color extension for r_cons
+// https://en.wikipedia.org/wiki/ANSI_color
+
+module ui
+
+const (
+	value_range = [0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff]!
+	color_table = init_color_table()
+)
+
+[direct_array_access]
+fn init_color_table() []int {
+	mut color_table_ := []int{len: 256}
+	// ansi colors
+	color_table_[0] = 0x000000
+	color_table_[1] = 0x800000
+	color_table_[2] = 0x008000
+	color_table_[3] = 0x808000
+	color_table_[4] = 0x000080
+	color_table_[5] = 0x800080
+	color_table_[6] = 0x008080
+	color_table_[7] = 0xc0c0c0
+	color_table_[8] = 0x808080
+	color_table_[9] = 0xff0000
+	color_table_[10] = 0x00ff00
+	color_table_[11] = 0xffff00
+	color_table_[12] = 0x0000ff
+	color_table_[13] = 0xff00ff
+	color_table_[14] = 0x00ffff
+	color_table_[15] = 0xffffff
+	// color palette
+	for i in 0 .. 216 {
+		r := ui.value_range[(i / 36) % 6]
+		g := ui.value_range[(i / 6) % 6]
+		b := ui.value_range[i % 6]
+		color_table_[i + 16] = ((r << 16) & 0xffffff) + ((g << 8) & 0xffff) + (b & 0xff)
+	}
+	// grayscale
+	for i in 0 .. 24 {
+		r := 8 + (i * 10)
+		color_table_[i + 232] = ((r << 16) & 0xffffff) + ((r << 8) & 0xffff) + (r & 0xff)
+	}
+	return color_table_
+}
+
+fn clamp(x int, y int, z int) int {
+	if x < y {
+		return y
+	}
+	if x > z {
+		return z
+	}
+	return x
+}
+
+fn approximate_rgb(r int, g int, b int) int {
+	grey := r > 0 && r < 255 && r == g && r == b
+	if grey {
+		return 232 + int(f64(r) / (255 / 24.1))
+	}
+	k := int(256.0 / 6)
+	r2 := clamp(r / k, 0, 5)
+	g2 := clamp(g / k, 0, 5)
+	b2 := clamp(b / k, 0, 5)
+	return 16 + (r2 * 36) + (g2 * 6) + b2
+}
+
+fn lookup_rgb(r int, g int, b int) int {
+	color := (r << 16) + (g << 8) + b
+	// lookup extended colors only, coz non-extended can be changed by users.
+	for i in 16 .. 256 {
+		if ui.color_table[i] == color {
+			return i
+		}
+	}
+	return -1
+}
+
+// converts an RGB color to an ANSI 256-color, approximating it to the nearest available color
+// if an exact match is not found
+fn rgb2ansi(r int, g int, b int) int {
+	c := lookup_rgb(r, g, b)
+	if c == -1 {
+		return approximate_rgb(r, g, b)
+	}
+	return c
+}
diff --git a/v_windows/v/vlib/term/ui/consoleapi_windows.c.v b/v_windows/v/vlib/term/ui/consoleapi_windows.c.v
new file mode 100644
index 0000000..a6002a6
--- /dev/null
+++ b/v_windows/v/vlib/term/ui/consoleapi_windows.c.v
@@ -0,0 +1,82 @@
+module ui
+
+union C.Event {
+	KeyEvent              C.KEY_EVENT_RECORD
+	MouseEvent            C.MOUSE_EVENT_RECORD
+	WindowBufferSizeEvent C.WINDOW_BUFFER_SIZE_RECORD
+	MenuEvent             C.MENU_EVENT_RECORD
+	FocusEvent            C.FOCUS_EVENT_RECORD
+}
+
+[typedef]
+struct C.INPUT_RECORD {
+	EventType u16
+	Event     C.Event
+}
+
+union C.uChar {
+	UnicodeChar rune
+	AsciiChar   byte
+}
+
+[typedef]
+struct C.KEY_EVENT_RECORD {
+	bKeyDown          int
+	wRepeatCount      u16
+	wVirtualKeyCode   u16
+	wVirtualScanCode  u16
+	uChar             C.uChar
+	dwControlKeyState u32
+}
+
+[typedef]
+struct C.MOUSE_EVENT_RECORD {
+	dwMousePosition   C.COORD
+	dwButtonState     u32
+	dwControlKeyState u32
+	dwEventFlags      u32
+}
+
+[typedef]
+struct C.WINDOW_BUFFER_SIZE_RECORD {
+	dwSize C.COORD
+}
+
+[typedef]
+struct C.MENU_EVENT_RECORD {
+	dwCommandId u32
+}
+
+[typedef]
+struct C.FOCUS_EVENT_RECORD {
+	bSetFocus int
+}
+
+[typedef]
+struct C.COORD {
+	X i16
+	Y i16
+}
+
+[typedef]
+struct C.SMALL_RECT {
+	Left   u16
+	Top    u16
+	Right  u16
+	Bottom u16
+}
+
+[typedef]
+struct C.CONSOLE_SCREEN_BUFFER_INFO {
+	dwSize              C.COORD
+	dwCursorPosition    C.COORD
+	wAttributes         u16
+	srWindow            C.SMALL_RECT
+	dwMaximumWindowSize C.COORD
+}
+
+fn C.ReadConsoleInput(hConsoleInput C.HANDLE, lpBuffer &C.INPUT_RECORD, nLength u32, lpNumberOfEventsRead &u32) bool
+
+fn C.GetNumberOfConsoleInputEvents(hConsoleInput C.HANDLE, lpcNumberOfEvents &u32) bool
+
+fn C.GetConsoleScreenBufferInfo(handle C.HANDLE, info &C.CONSOLE_SCREEN_BUFFER_INFO) bool
diff --git a/v_windows/v/vlib/term/ui/input.v b/v_windows/v/vlib/term/ui/input.v
new file mode 100644
index 0000000..0532b39
--- /dev/null
+++ b/v_windows/v/vlib/term/ui/input.v
@@ -0,0 +1,241 @@
+// Copyright (c) 2020-2021 Raúl Hernández. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module ui
+
+import os
+
+pub enum KeyCode {
+	null = 0
+	tab = 9
+	enter = 10
+	escape = 27
+	space = 32
+	backspace = 127
+	exclamation = 33
+	double_quote = 34
+	hashtag = 35
+	dollar = 36
+	percent = 37
+	ampersand = 38
+	single_quote = 39
+	left_paren = 40
+	right_paren = 41
+	asterisk = 42
+	plus = 43
+	comma = 44
+	minus = 45
+	period = 46
+	slash = 47
+	_0 = 48
+	_1 = 49
+	_2 = 50
+	_3 = 51
+	_4 = 52
+	_5 = 53
+	_6 = 54
+	_7 = 55
+	_8 = 56
+	_9 = 57
+	colon = 58
+	semicolon = 59
+	less_than = 60
+	equal = 61
+	greater_than = 62
+	question_mark = 63
+	at = 64
+	a = 97
+	b = 98
+	c = 99
+	d = 100
+	e = 101
+	f = 102
+	g = 103
+	h = 104
+	i = 105
+	j = 106
+	k = 107
+	l = 108
+	m = 109
+	n = 110
+	o = 111
+	p = 112
+	q = 113
+	r = 114
+	s = 115
+	t = 116
+	u = 117
+	v = 118
+	w = 119
+	x = 120
+	y = 121
+	z = 122
+	left_square_bracket = 91
+	backslash = 92
+	right_square_bracket = 93
+	caret = 94
+	underscore = 95
+	backtick = 96
+	left_curly_bracket = 123
+	vertical_bar = 124
+	right_curly_bracket = 125
+	tilde = 126
+	insert = 260
+	delete = 261
+	up = 262
+	down = 263
+	right = 264
+	left = 265
+	page_up = 266
+	page_down = 267
+	home = 268
+	end = 269
+	f1 = 290
+	f2 = 291
+	f3 = 292
+	f4 = 293
+	f5 = 294
+	f6 = 295
+	f7 = 296
+	f8 = 297
+	f9 = 298
+	f10 = 299
+	f11 = 300
+	f12 = 301
+	f13 = 302
+	f14 = 303
+	f15 = 304
+	f16 = 305
+	f17 = 306
+	f18 = 307
+	f19 = 308
+	f20 = 309
+	f21 = 310
+	f22 = 311
+	f23 = 312
+	f24 = 313
+}
+
+pub enum Direction {
+	unknown
+	up
+	down
+	left
+	right
+}
+
+pub enum MouseButton {
+	unknown
+	left
+	middle
+	right
+}
+
+pub enum EventType {
+	unknown
+	mouse_down
+	mouse_up
+	mouse_move
+	mouse_drag
+	mouse_scroll
+	key_down
+	resized
+}
+
+[flag]
+pub enum Modifiers {
+	ctrl
+	shift
+	alt
+}
+
+pub struct Event {
+pub:
+	typ EventType
+	// Mouse event info
+	x         int
+	y         int
+	button    MouseButton
+	direction Direction
+	// Keyboard event info
+	code      KeyCode
+	modifiers Modifiers
+	ascii     byte
+	utf8      string
+	// Resized event info
+	width  int
+	height int
+}
+
+pub struct Context {
+	ExtraContext // contains fields specific to an implementation
+pub:
+	cfg Config // adsasdas
+mut:
+	print_buf  []byte
+	paused     bool
+	enable_su  bool
+	enable_rgb bool
+pub mut:
+	frame_count   u64
+	window_width  int
+	window_height int
+}
+
+pub struct Config {
+	user_data  voidptr
+	init_fn    fn (voidptr)
+	frame_fn   fn (voidptr)
+	cleanup_fn fn (voidptr)
+	event_fn   fn (&Event, voidptr)
+	fail_fn    fn (string)
+
+	buffer_size int = 256
+	frame_rate  int = 30
+	use_x11     bool
+
+	window_title         string
+	hide_cursor          bool
+	capture_events       bool
+	use_alternate_buffer bool = true
+	skip_init_checks     bool
+	// All kill signals to set up exit listeners on:
+	reset []os.Signal = [.hup, .int, .quit, .ill, .abrt, .bus, .fpe, .kill, .segv, .pipe, .alrm, .term,
+	.stop,
+]
+}
+
+[inline]
+fn (ctx &Context) init() {
+	if ctx.cfg.init_fn != voidptr(0) {
+		ctx.cfg.init_fn(ctx.cfg.user_data)
+	}
+}
+
+[inline]
+fn (ctx &Context) frame() {
+	if ctx.cfg.frame_fn != voidptr(0) {
+		ctx.cfg.frame_fn(ctx.cfg.user_data)
+	}
+}
+
+[inline]
+fn (ctx &Context) cleanup() {
+	if ctx.cfg.cleanup_fn != voidptr(0) {
+		ctx.cfg.cleanup_fn(ctx.cfg.user_data)
+	}
+}
+
+[inline]
+fn (ctx &Context) fail(error string) {
+	if ctx.cfg.fail_fn != voidptr(0) {
+		ctx.cfg.fail_fn(error)
+	}
+}
+
+[inline]
+fn (ctx &Context) event(event &Event) {
+	if ctx.cfg.event_fn != voidptr(0) {
+		ctx.cfg.event_fn(event, ctx.cfg.user_data)
+	}
+}
diff --git a/v_windows/v/vlib/term/ui/input_nix.c.v b/v_windows/v/vlib/term/ui/input_nix.c.v
new file mode 100644
index 0000000..e806fb8
--- /dev/null
+++ b/v_windows/v/vlib/term/ui/input_nix.c.v
@@ -0,0 +1,70 @@
+// Copyright (c) 2020-2021 Raúl Hernández. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module ui
+
+struct ExtraContext {
+mut:
+	read_buf []byte
+}
+
+const (
+	ctx_ptr = &Context(0)
+)
+
+pub fn init(cfg Config) &Context {
+	mut ctx := &Context{
+		cfg: cfg
+	}
+	ctx.read_buf = []byte{cap: cfg.buffer_size}
+
+	// lmao
+	unsafe {
+		x := &ui.ctx_ptr
+		*x = ctx
+		_ = x
+	}
+	return ctx
+}
+
+[inline]
+fn save_title() {
+	// restore the previously saved terminal title
+	print('\x1b[22;0t')
+}
+
+[inline]
+fn load_title() {
+	// restore the previously saved terminal title
+	print('\x1b[23;0t')
+}
+
+pub fn (mut ctx Context) run() ? {
+	if ctx.cfg.use_x11 {
+		ctx.fail('error: x11 backend not implemented yet')
+		exit(1)
+	} else {
+		ctx.termios_setup() ?
+		ctx.termios_loop()
+	}
+}
+
+// shifts the array left, to remove any data that was just read, and updates its len
+// TODO: remove
+[inline]
+fn (mut ctx Context) shift(len int) {
+	unsafe {
+		C.memmove(ctx.read_buf.data, &byte(ctx.read_buf.data) + len, ctx.read_buf.cap - len)
+		ctx.resize_arr(ctx.read_buf.len - len)
+	}
+}
+
+// TODO: don't actually do this, lmao
+[inline]
+fn (mut ctx Context) resize_arr(size int) {
+	mut l := unsafe { &ctx.read_buf.len }
+	unsafe {
+		*l = size
+		_ = l
+	}
+}
diff --git a/v_windows/v/vlib/term/ui/input_windows.c.v b/v_windows/v/vlib/term/ui/input_windows.c.v
new file mode 100644
index 0000000..bd9782d
--- /dev/null
+++ b/v_windows/v/vlib/term/ui/input_windows.c.v
@@ -0,0 +1,326 @@
+// Copyright (c) 2020-2021 Raúl Hernández. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module ui
+
+import os
+import time
+
+const (
+	buf_size         = 64
+	ctx_ptr          = &Context(0)
+	stdin_at_startup = u32(0)
+)
+
+struct ExtraContext {
+mut:
+	stdin_handle  C.HANDLE
+	stdout_handle C.HANDLE
+	read_buf      [buf_size]C.INPUT_RECORD
+	mouse_down    MouseButton
+}
+
+fn restore_terminal_state() {
+	if ui.ctx_ptr != 0 {
+		if ui.ctx_ptr.cfg.use_alternate_buffer {
+			// clear the terminal and set the cursor to the origin
+			print('\x1b[2J\x1b[3J')
+			print('\x1b[?1049l')
+		}
+		C.SetConsoleMode(ui.ctx_ptr.stdin_handle, ui.stdin_at_startup)
+	}
+	load_title()
+	os.flush()
+}
+
+pub fn init(cfg Config) &Context {
+	mut ctx := &Context{
+		cfg: cfg
+	}
+	// get the standard input handle
+	stdin_handle := C.GetStdHandle(C.STD_INPUT_HANDLE)
+	stdout_handle := C.GetStdHandle(C.STD_OUTPUT_HANDLE)
+	if stdin_handle == C.INVALID_HANDLE_VALUE {
+		panic('could not get stdin handle')
+	}
+	// save the current input mode, to be restored on exit
+	if C.GetConsoleMode(stdin_handle, &ui.stdin_at_startup) == 0 {
+		panic('could not get stdin console mode')
+	}
+
+	// enable extended input flags (see https://stackoverflow.com/a/46802726)
+	// 0x80 == C.ENABLE_EXTENDED_FLAGS
+	if C.SetConsoleMode(stdin_handle, 0x80) == 0 {
+		panic('could not set raw input mode')
+	}
+	// enable window and mouse input events.
+	if C.SetConsoleMode(stdin_handle, C.ENABLE_WINDOW_INPUT | C.ENABLE_MOUSE_INPUT) == 0 {
+		panic('could not set raw input mode')
+	}
+	// store the current title, so restore_terminal_state can get it back
+	save_title()
+
+	if ctx.cfg.use_alternate_buffer {
+		// switch to the alternate buffer
+		print('\x1b[?1049h')
+		// clear the terminal and set the cursor to the origin
+		print('\x1b[2J\x1b[3J\x1b[1;1H')
+	}
+
+	if ctx.cfg.hide_cursor {
+		ctx.hide_cursor()
+		ctx.flush()
+	}
+
+	if ctx.cfg.window_title != '' {
+		print('\x1b]0;$ctx.cfg.window_title\x07')
+	}
+
+	unsafe {
+		x := &ui.ctx_ptr
+		*x = ctx
+	}
+	C.atexit(restore_terminal_state)
+	for code in ctx.cfg.reset {
+		os.signal_opt(code, fn (_ os.Signal) {
+			mut c := ui.ctx_ptr
+			if c != 0 {
+				c.cleanup()
+			}
+			exit(0)
+		}) or {}
+	}
+
+	ctx.stdin_handle = stdin_handle
+	ctx.stdout_handle = stdout_handle
+	return ctx
+}
+
+pub fn (mut ctx Context) run() ? {
+	frame_time := 1_000_000 / ctx.cfg.frame_rate
+	mut init_called := false
+	mut sw := time.new_stopwatch(auto_start: false)
+	mut sleep_len := 0
+	for {
+		if !init_called {
+			ctx.init()
+			init_called = true
+		}
+		if sleep_len > 0 {
+			time.sleep(sleep_len * time.microsecond)
+		}
+		if !ctx.paused {
+			sw.restart()
+			if ctx.cfg.event_fn != voidptr(0) {
+				ctx.parse_events()
+			}
+			ctx.frame()
+			sw.pause()
+			e := sw.elapsed().microseconds()
+			sleep_len = frame_time - int(e)
+			ctx.frame_count++
+		}
+	}
+}
+
+fn (mut ctx Context) parse_events() {
+	nr_events := u32(0)
+	if !C.GetNumberOfConsoleInputEvents(ctx.stdin_handle, &nr_events) {
+		panic('could not get number of events in stdin')
+	}
+	if nr_events < 1 {
+		return
+	}
+
+	// print('$nr_events | ')
+	if !C.ReadConsoleInput(ctx.stdin_handle, &ctx.read_buf[0], ui.buf_size, &nr_events) {
+		panic('could not read from stdin')
+	}
+	for i in 0 .. nr_events {
+		// print('E ')
+		match int(ctx.read_buf[i].EventType) {
+			C.KEY_EVENT {
+				e := unsafe { ctx.read_buf[i].Event.KeyEvent }
+				ch := e.wVirtualKeyCode
+				ascii := unsafe { e.uChar.AsciiChar }
+				if e.bKeyDown == 0 {
+					continue
+				}
+				// we don't handle key_up events because they don't exist on linux...
+				// see: https://docs.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes
+				code := match int(ch) {
+					C.VK_BACK { KeyCode.backspace }
+					C.VK_RETURN { KeyCode.enter }
+					C.VK_PRIOR { KeyCode.page_up }
+					14...20 { KeyCode.null }
+					C.VK_NEXT { KeyCode.page_down }
+					C.VK_END { KeyCode.end }
+					C.VK_HOME { KeyCode.home }
+					C.VK_LEFT { KeyCode.left }
+					C.VK_UP { KeyCode.up }
+					C.VK_RIGHT { KeyCode.right }
+					C.VK_DOWN { KeyCode.down }
+					C.VK_INSERT { KeyCode.insert }
+					C.VK_DELETE { KeyCode.delete }
+					65...90 { KeyCode(ch + 32) } // letters
+					91...93 { KeyCode.null } // special keys
+					96...105 { KeyCode(ch - 48) } // numpad numbers
+					112...135 { KeyCode(ch + 178) } // f1 - f24
+					else { KeyCode(ascii) }
+				}
+
+				mut modifiers := Modifiers{}
+				if e.dwControlKeyState & (0x1 | 0x2) != 0 {
+					modifiers.set(.alt)
+				}
+				if e.dwControlKeyState & (0x4 | 0x8) != 0 {
+					modifiers.set(.ctrl)
+				}
+				if e.dwControlKeyState & 0x10 != 0 {
+					modifiers.set(.shift)
+				}
+
+				mut event := &Event{
+					typ: .key_down
+					modifiers: modifiers
+					code: code
+					ascii: ascii
+					width: int(e.dwControlKeyState)
+					height: int(e.wVirtualKeyCode)
+					utf8: unsafe { e.uChar.UnicodeChar.str() }
+				}
+				ctx.event(event)
+			}
+			C.MOUSE_EVENT {
+				e := unsafe { ctx.read_buf[i].Event.MouseEvent }
+				sb_info := C.CONSOLE_SCREEN_BUFFER_INFO{}
+				if !C.GetConsoleScreenBufferInfo(ctx.stdout_handle, &sb_info) {
+					panic('could not get screenbuffer info')
+				}
+				x := e.dwMousePosition.X + 1
+				y := int(e.dwMousePosition.Y) - sb_info.srWindow.Top + 1
+				mut modifiers := Modifiers{}
+				if e.dwControlKeyState & (0x1 | 0x2) != 0 {
+					modifiers.set(.alt)
+				}
+				if e.dwControlKeyState & (0x4 | 0x8) != 0 {
+					modifiers.set(.ctrl)
+				}
+				if e.dwControlKeyState & 0x10 != 0 {
+					modifiers.set(.shift)
+				}
+				// TODO: handle capslock/numlock/etc?? events exist for those keys
+				match int(e.dwEventFlags) {
+					C.MOUSE_MOVED {
+						mut button := match int(e.dwButtonState) {
+							0 { MouseButton.unknown }
+							1 { MouseButton.left }
+							2 { MouseButton.right }
+							else { MouseButton.middle }
+						}
+						typ := if e.dwButtonState == 0 {
+							if ctx.mouse_down != .unknown {
+								button = ctx.mouse_down
+								ctx.mouse_down = .unknown
+								EventType.mouse_up
+							} else {
+								EventType.mouse_move
+							}
+						} else {
+							EventType.mouse_drag
+						}
+						ctx.event(&Event{
+							typ: typ
+							x: x
+							y: y
+							button: button
+							modifiers: modifiers
+						})
+					}
+					C.MOUSE_WHEELED {
+						ctx.event(&Event{
+							typ: .mouse_scroll
+							direction: if i16(e.dwButtonState >> 16) < 0 {
+								Direction.up
+							} else {
+								Direction.down
+							}
+							x: x
+							y: y
+							modifiers: modifiers
+						})
+					}
+					0x0008 /* C.MOUSE_HWHEELED */ {
+						ctx.event(&Event{
+							typ: .mouse_scroll
+							direction: if i16(e.dwButtonState >> 16) < 0 {
+								Direction.right
+							} else {
+								Direction.left
+							}
+							x: x
+							y: y
+							modifiers: modifiers
+						})
+					}
+					0 /* CLICK */, C.DOUBLE_CLICK {
+						button := match int(e.dwButtonState) {
+							0 { ctx.mouse_down }
+							1 { MouseButton.left }
+							2 { MouseButton.right }
+							else { MouseButton.middle }
+						}
+						ctx.mouse_down = button
+						ctx.event(&Event{
+							typ: .mouse_down
+							x: x
+							y: y
+							button: button
+							modifiers: modifiers
+						})
+					}
+					else {}
+				}
+			}
+			C.WINDOW_BUFFER_SIZE_EVENT {
+				// e := unsafe { ctx.read_buf[i].Event.WindowBufferSizeEvent }
+				sb := C.CONSOLE_SCREEN_BUFFER_INFO{}
+				if !C.GetConsoleScreenBufferInfo(ctx.stdout_handle, &sb) {
+					panic('could not get screenbuffer info')
+				}
+				w := sb.srWindow.Right - sb.srWindow.Left + 1
+				h := sb.srWindow.Bottom - sb.srWindow.Top + 1
+				utf8 := '($ctx.window_width, $ctx.window_height) -> ($w, $h)'
+				if w != ctx.window_width || h != ctx.window_height {
+					ctx.window_width, ctx.window_height = w, h
+					mut event := &Event{
+						typ: .resized
+						width: ctx.window_width
+						height: ctx.window_height
+						utf8: utf8
+					}
+					ctx.event(event)
+				}
+			}
+			// C.MENU_EVENT {
+			// 	e := unsafe { ctx.read_buf[i].Event.MenuEvent }
+			// }
+			// C.FOCUS_EVENT {
+			// 	e := unsafe { ctx.read_buf[i].Event.FocusEvent }
+			// }
+			else {}
+		}
+	}
+}
+
+[inline]
+fn save_title() {
+	// restore the previously saved terminal title
+	print('\x1b[22;0t')
+}
+
+[inline]
+fn load_title() {
+	// restore the previously saved terminal title
+	print('\x1b[23;0t')
+}
diff --git a/v_windows/v/vlib/term/ui/termios_nix.c.v b/v_windows/v/vlib/term/ui/termios_nix.c.v
new file mode 100644
index 0000000..fb5ff76
--- /dev/null
+++ b/v_windows/v/vlib/term/ui/termios_nix.c.v
@@ -0,0 +1,530 @@
+// Copyright (c) 2020-2021 Raúl Hernández. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module ui
+
+import os
+import time
+
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <signal.h>
+
+fn C.tcgetattr(fd int, termios_p &C.termios) int
+
+fn C.tcsetattr(fd int, optional_actions int, termios_p &C.termios) int
+
+fn C.ioctl(fd int, request u64, arg voidptr) int
+
+struct C.termios {
+mut:
+	c_iflag u32
+	c_lflag u32
+	c_cc    [32]byte
+}
+
+struct C.winsize {
+	ws_row u16
+	ws_col u16
+}
+
+const (
+	termios_at_startup = get_termios()
+)
+
+[inline]
+fn get_termios() C.termios {
+	mut t := C.termios{}
+	C.tcgetattr(C.STDIN_FILENO, &t)
+	return t
+}
+
+[inline]
+fn get_terminal_size() (u16, u16) {
+	winsz := C.winsize{}
+	C.ioctl(0, C.TIOCGWINSZ, &winsz)
+	return winsz.ws_row, winsz.ws_col
+}
+
+fn restore_terminal_state_signal(_ os.Signal) {
+	restore_terminal_state()
+}
+
+fn restore_terminal_state() {
+	termios_reset()
+	mut c := ctx_ptr
+	if c != 0 {
+		c.paused = true
+		load_title()
+	}
+	os.flush()
+}
+
+fn (mut ctx Context) termios_setup() ? {
+	// store the current title, so restore_terminal_state can get it back
+	save_title()
+
+	if !ctx.cfg.skip_init_checks && !(os.is_atty(C.STDIN_FILENO) != 0
+		&& os.is_atty(C.STDOUT_FILENO) != 0) {
+		return error('not running under a TTY')
+	}
+
+	mut termios := get_termios()
+
+	if ctx.cfg.capture_events {
+		// Set raw input mode by unsetting ICANON and ECHO,
+		// as well as disable e.g. ctrl+c and ctrl.z
+		termios.c_iflag &= ~u32(C.IGNBRK | C.BRKINT | C.PARMRK | C.IXON)
+		termios.c_lflag &= ~u32(C.ICANON | C.ISIG | C.ECHO | C.IEXTEN | C.TOSTOP)
+	} else {
+		// Set raw input mode by unsetting ICANON and ECHO
+		termios.c_lflag &= ~u32(C.ICANON | C.ECHO)
+	}
+
+	if ctx.cfg.hide_cursor {
+		ctx.hide_cursor()
+		ctx.flush()
+	}
+
+	if ctx.cfg.window_title != '' {
+		print('\x1b]0;$ctx.cfg.window_title\x07')
+	}
+
+	if !ctx.cfg.skip_init_checks {
+		// prevent blocking during the feature detections, but allow enough time for the terminal
+		// to send back the relevant input data
+		termios.c_cc[C.VTIME] = 1
+		termios.c_cc[C.VMIN] = 0
+		C.tcsetattr(C.STDIN_FILENO, C.TCSAFLUSH, &termios)
+		// feature-test the SU spec
+		sx, sy := get_cursor_position()
+		print('$bsu$esu')
+		ex, ey := get_cursor_position()
+		if sx == ex && sy == ey {
+			// the terminal either ignored or handled the sequence properly, enable SU
+			ctx.enable_su = true
+		} else {
+			ctx.draw_line(sx, sy, ex, ey)
+			ctx.set_cursor_position(sx, sy)
+			ctx.flush()
+		}
+		// feature-test rgb (truecolor) support
+		ctx.enable_rgb = supports_truecolor()
+	}
+	// Prevent stdin from blocking by making its read time 0
+	termios.c_cc[C.VTIME] = 0
+	termios.c_cc[C.VMIN] = 0
+	C.tcsetattr(C.STDIN_FILENO, C.TCSAFLUSH, &termios)
+	// enable mouse input
+	print('\x1b[?1003h\x1b[?1006h')
+	if ctx.cfg.use_alternate_buffer {
+		// switch to the alternate buffer
+		print('\x1b[?1049h')
+		// clear the terminal and set the cursor to the origin
+		print('\x1b[2J\x1b[3J\x1b[1;1H')
+	}
+	ctx.window_height, ctx.window_width = get_terminal_size()
+
+	// Reset console on exit
+	C.atexit(restore_terminal_state)
+	os.signal_opt(.tstp, restore_terminal_state_signal) or {}
+	os.signal_opt(.cont, fn (_ os.Signal) {
+		mut c := ctx_ptr
+		if c != 0 {
+			c.termios_setup() or { panic(err) }
+			c.window_height, c.window_width = get_terminal_size()
+			mut event := &Event{
+				typ: .resized
+				width: c.window_width
+				height: c.window_height
+			}
+			c.paused = false
+			c.event(event)
+		}
+	}) or {}
+	for code in ctx.cfg.reset {
+		os.signal_opt(code, fn (_ os.Signal) {
+			mut c := ctx_ptr
+			if c != 0 {
+				c.cleanup()
+			}
+			exit(0)
+		}) or {}
+	}
+
+	os.signal_opt(.winch, fn (_ os.Signal) {
+		mut c := ctx_ptr
+		if c != 0 {
+			c.window_height, c.window_width = get_terminal_size()
+
+			mut event := &Event{
+				typ: .resized
+				width: c.window_width
+				height: c.window_height
+			}
+			c.event(event)
+		}
+	}) or {}
+
+	os.flush()
+}
+
+fn get_cursor_position() (int, int) {
+	print('\033[6n')
+	mut s := ''
+	unsafe {
+		buf := malloc_noscan(25)
+		len := C.read(C.STDIN_FILENO, buf, 24)
+		buf[len] = 0
+		s = tos(buf, len)
+	}
+	a := s[2..].split(';')
+	if a.len != 2 {
+		return -1, -1
+	}
+	return a[0].int(), a[1].int()
+}
+
+fn supports_truecolor() bool {
+	// faster/simpler, but less reliable, check
+	if os.getenv('COLORTERM') in ['truecolor', '24bit'] {
+		return true
+	}
+	// set the bg color to some arbirtrary value (#010203), assumed not to be the default
+	print('\x1b[48:2:1:2:3m')
+	// andquery the current color
+	print('\x1bP\$qm\x1b\\')
+	mut s := ''
+	unsafe {
+		buf := malloc_noscan(25)
+		len := C.read(C.STDIN_FILENO, buf, 24)
+		buf[len] = 0
+		s = tos(buf, len)
+	}
+	return s.contains('1:2:3')
+}
+
+fn termios_reset() {
+	// C.TCSANOW ??
+	C.tcsetattr(C.STDIN_FILENO, C.TCSAFLUSH, &ui.termios_at_startup)
+	print('\x1b[?1003l\x1b[?1006l\x1b[?25h')
+	c := ctx_ptr
+	if c != 0 && c.cfg.use_alternate_buffer {
+		print('\x1b[?1049l')
+	}
+	os.flush()
+}
+
+///////////////////////////////////////////
+// TODO: do multiple sleep/read cycles, rather than one big one
+fn (mut ctx Context) termios_loop() {
+	frame_time := 1_000_000 / ctx.cfg.frame_rate
+	mut init_called := false
+	mut sw := time.new_stopwatch(auto_start: false)
+	mut sleep_len := 0
+	for {
+		if !init_called {
+			ctx.init()
+			init_called = true
+		}
+		// println('SLEEPING: $sleep_len')
+		if sleep_len > 0 {
+			time.sleep(sleep_len * time.microsecond)
+		}
+		if !ctx.paused {
+			sw.restart()
+			if ctx.cfg.event_fn != voidptr(0) {
+				unsafe {
+					len := C.read(C.STDIN_FILENO, &byte(ctx.read_buf.data) + ctx.read_buf.len,
+						ctx.read_buf.cap - ctx.read_buf.len)
+					ctx.resize_arr(ctx.read_buf.len + len)
+				}
+				if ctx.read_buf.len > 0 {
+					ctx.parse_events()
+				}
+			}
+			ctx.frame()
+			sw.pause()
+			e := sw.elapsed().microseconds()
+			sleep_len = frame_time - int(e)
+
+			ctx.frame_count++
+		}
+	}
+}
+
+fn (mut ctx Context) parse_events() {
+	// Stop this from getting stuck in rare cases where something isn't parsed correctly
+	mut nr_iters := 0
+	for ctx.read_buf.len > 0 {
+		nr_iters++
+		if nr_iters > 100 {
+			ctx.shift(1)
+		}
+		mut event := &Event(0)
+		if ctx.read_buf[0] == 0x1b {
+			e, len := escape_sequence(ctx.read_buf.bytestr())
+			event = e
+			ctx.shift(len)
+		} else {
+			event = single_char(ctx.read_buf.bytestr())
+			ctx.shift(1)
+		}
+		if event != 0 {
+			ctx.event(event)
+			nr_iters = 0
+		}
+	}
+}
+
+fn single_char(buf string) &Event {
+	ch := buf[0]
+
+	mut event := &Event{
+		typ: .key_down
+		ascii: ch
+		code: KeyCode(ch)
+		utf8: buf
+	}
+
+	match ch {
+		// special handling for `ctrl + letter`
+		// TODO: Fix assoc in V and remove this workaround :/
+		// 1  ... 26 { event = Event{ ...event, code: KeyCode(96 | ch), modifiers: .ctrl  } }
+		// 65 ... 90 { event = Event{ ...event, code: KeyCode(32 | ch), modifiers: .shift } }
+		// The bit `or`s here are really just `+`'s, just written in this way for a tiny performance improvement
+		// don't treat tab, enter as ctrl+i, ctrl+j
+		1...8, 11...26 {
+			event = &Event{
+				typ: event.typ
+				ascii: event.ascii
+				utf8: event.utf8
+				code: KeyCode(96 | ch)
+				modifiers: .ctrl
+			}
+		}
+		65...90 {
+			event = &Event{
+				typ: event.typ
+				ascii: event.ascii
+				utf8: event.utf8
+				code: KeyCode(32 | ch)
+				modifiers: .shift
+			}
+		}
+		else {}
+	}
+
+	return event
+}
+
+// Gets an entire, independent escape sequence from the buffer
+// Normally, this just means reading until the first letter, but there are some exceptions...
+fn escape_end(buf string) int {
+	mut i := 0
+	for {
+		if i + 1 == buf.len {
+			return buf.len
+		}
+
+		if buf[i].is_letter() || buf[i] == `~` {
+			if buf[i] == `O` && i + 2 <= buf.len {
+				n := buf[i + 1]
+				if (n >= `A` && n <= `D`) || (n >= `P` && n <= `S`) || n == `F` || n == `H` {
+					return i + 2
+				}
+			}
+			return i + 1
+			// escape hatch to avoid potential issues/crashes, although ideally this should never eval to true
+		} else if buf[i + 1] == 0x1b {
+			return i + 1
+		}
+		i++
+	}
+	// this point should be unreachable
+	assert false
+	return 0
+}
+
+fn escape_sequence(buf_ string) (&Event, int) {
+	end := escape_end(buf_)
+	single := buf_[..end] // read until the end of the sequence
+	buf := single[1..] // skip the escape character
+
+	if buf.len == 0 {
+		return &Event{
+			typ: .key_down
+			ascii: 27
+			code: .escape
+			utf8: single
+		}, 1
+	}
+
+	if buf.len == 1 {
+		c := single_char(buf)
+		mut modifiers := c.modifiers
+		modifiers.set(.alt)
+		return &Event{
+			typ: c.typ
+			ascii: c.ascii
+			code: c.code
+			utf8: single
+			modifiers: modifiers
+		}, 2
+	}
+	// ----------------
+	//   Mouse events
+	// ----------------
+	// Documentation: https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-Mouse-Tracking
+	if buf.len > 2 && buf[1] == `<` {
+		split := buf[2..].split(';')
+		if split.len < 3 {
+			return &Event(0), 0
+		}
+
+		typ, x, y := split[0].int(), split[1].int(), split[2].int()
+		lo := typ & 0b00011
+		hi := typ & 0b11100
+
+		mut modifiers := Modifiers{}
+		if hi & 4 != 0 {
+			modifiers.set(.shift)
+		}
+		if hi & 8 != 0 {
+			modifiers.set(.alt)
+		}
+		if hi & 16 != 0 {
+			modifiers.set(.ctrl)
+		}
+
+		match typ {
+			0...31 {
+				last := buf[buf.len - 1]
+				button := if lo < 3 { MouseButton(lo + 1) } else { MouseButton.unknown }
+				event := if last == `m` || lo == 3 {
+					EventType.mouse_up
+				} else {
+					EventType.mouse_down
+				}
+
+				return &Event{
+					typ: event
+					x: x
+					y: y
+					button: button
+					modifiers: modifiers
+					utf8: single
+				}, end
+			}
+			32...63 {
+				button, event := if lo < 3 {
+					MouseButton(lo + 1), EventType.mouse_drag
+				} else {
+					MouseButton.unknown, EventType.mouse_move
+				}
+
+				return &Event{
+					typ: event
+					x: x
+					y: y
+					button: button
+					modifiers: modifiers
+					utf8: single
+				}, end
+			}
+			64...95 {
+				direction := if typ & 1 == 0 { Direction.down } else { Direction.up }
+				return &Event{
+					typ: .mouse_scroll
+					x: x
+					y: y
+					direction: direction
+					modifiers: modifiers
+					utf8: single
+				}, end
+			}
+			else {
+				return &Event{
+					typ: .unknown
+					utf8: single
+				}, end
+			}
+		}
+	}
+	// ----------------------------
+	//   Special key combinations
+	// ----------------------------
+
+	mut code := KeyCode.null
+	mut modifiers := Modifiers{}
+	match buf {
+		'[A', 'OA' { code = .up }
+		'[B', 'OB' { code = .down }
+		'[C', 'OC' { code = .right }
+		'[D', 'OD' { code = .left }
+		'[5~', '[[5~' { code = .page_up }
+		'[6~', '[[6~' { code = .page_down }
+		'[F', 'OF', '[4~', '[[8~' { code = .end }
+		'[H', 'OH', '[1~', '[[7~' { code = .home }
+		'[2~' { code = .insert }
+		'[3~' { code = .delete }
+		'OP', '[11~' { code = .f1 }
+		'OQ', '[12~' { code = .f2 }
+		'OR', '[13~' { code = .f3 }
+		'OS', '[14~' { code = .f4 }
+		'[15~' { code = .f5 }
+		'[17~' { code = .f6 }
+		'[18~' { code = .f7 }
+		'[19~' { code = .f8 }
+		'[20~' { code = .f9 }
+		'[21~' { code = .f10 }
+		'[23~' { code = .f11 }
+		'[24~' { code = .f12 }
+		else {}
+	}
+
+	if buf == '[Z' {
+		code = .tab
+		modifiers.set(.shift)
+	}
+
+	if buf.len == 5 && buf[0] == `[` && buf[1].is_digit() && buf[2] == `;` {
+		match buf[3] {
+			`2` { modifiers = .shift }
+			`3` { modifiers = .alt }
+			`4` { modifiers = .shift | .alt }
+			`5` { modifiers = .ctrl }
+			`6` { modifiers = .ctrl | .shift }
+			`7` { modifiers = .ctrl | .alt }
+			`8` { modifiers = .ctrl | .alt | .shift }
+			else {}
+		}
+
+		if buf[1] == `1` {
+			match buf[4] {
+				`A` { code = KeyCode.up }
+				`B` { code = KeyCode.down }
+				`C` { code = KeyCode.right }
+				`D` { code = KeyCode.left }
+				`F` { code = KeyCode.end }
+				`H` { code = KeyCode.home }
+				`P` { code = KeyCode.f1 }
+				`Q` { code = KeyCode.f2 }
+				`R` { code = KeyCode.f3 }
+				`S` { code = KeyCode.f4 }
+				else {}
+			}
+		} else if buf[1] == `5` {
+			code = KeyCode.page_up
+		} else if buf[1] == `6` {
+			code = KeyCode.page_down
+		}
+	}
+
+	return &Event{
+		typ: .key_down
+		code: code
+		utf8: single
+		modifiers: modifiers
+	}, end
+}
diff --git a/v_windows/v/vlib/term/ui/ui.v b/v_windows/v/vlib/term/ui/ui.v
new file mode 100644
index 0000000..6ba3d7c
--- /dev/null
+++ b/v_windows/v/vlib/term/ui/ui.v
@@ -0,0 +1,256 @@
+// Copyright (c) 2020-2021 Raúl Hernández. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module ui
+
+import strings
+
+pub struct Color {
+pub:
+	r byte
+	g byte
+	b byte
+}
+
+pub fn (c Color) hex() string {
+	return '#$c.r.hex()$c.g.hex()$c.b.hex()'
+}
+
+// Synchronized Updates spec, designed to avoid tearing during renders
+// https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec
+const (
+	bsu = '\x1bP=1s\x1b\\'
+	esu = '\x1bP=2s\x1b\\'
+)
+
+// write puts the string `s` into the print buffer.
+[inline]
+pub fn (mut ctx Context) write(s string) {
+	if s == '' {
+		return
+	}
+	unsafe { ctx.print_buf.push_many(s.str, s.len) }
+}
+
+// flush displays the accumulated print buffer to the screen.
+[inline]
+pub fn (mut ctx Context) flush() {
+	// TODO: Diff the previous frame against this one, and only render things that changed?
+	if !ctx.enable_su {
+		C.write(1, ctx.print_buf.data, ctx.print_buf.len)
+	} else {
+		C.write(1, ui.bsu.str, ui.bsu.len)
+		C.write(1, ctx.print_buf.data, ctx.print_buf.len)
+		C.write(1, ui.esu.str, ui.esu.len)
+	}
+	ctx.print_buf.clear()
+}
+
+// bold sets the character state to bold.
+[inline]
+pub fn (mut ctx Context) bold() {
+	ctx.write('\x1b[1m')
+}
+
+// set_cursor_position positions the cusor at the given coordinates `x`,`y`.
+[inline]
+pub fn (mut ctx Context) set_cursor_position(x int, y int) {
+	ctx.write('\x1b[$y;${x}H')
+}
+
+// show_cursor will make the cursor appear if it is not already visible
+[inline]
+pub fn (mut ctx Context) show_cursor() {
+	ctx.write('\x1b[?25h')
+}
+
+// hide_cursor will make the cursor invisible
+[inline]
+pub fn (mut ctx Context) hide_cursor() {
+	ctx.write('\x1b[?25l')
+}
+
+// set_color sets the current foreground color used by any succeeding `draw_*` calls.
+[inline]
+pub fn (mut ctx Context) set_color(c Color) {
+	if ctx.enable_rgb {
+		ctx.write('\x1b[38;2;${int(c.r)};${int(c.g)};${int(c.b)}m')
+	} else {
+		ctx.write('\x1b[38;5;${rgb2ansi(c.r, c.g, c.b)}m')
+	}
+}
+
+// set_color sets the current background color used by any succeeding `draw_*` calls.
+[inline]
+pub fn (mut ctx Context) set_bg_color(c Color) {
+	if ctx.enable_rgb {
+		ctx.write('\x1b[48;2;${int(c.r)};${int(c.g)};${int(c.b)}m')
+	} else {
+		ctx.write('\x1b[48;5;${rgb2ansi(c.r, c.g, c.b)}m')
+	}
+}
+
+// reset_color sets the current foreground color back to it's default value.
+[inline]
+pub fn (mut ctx Context) reset_color() {
+	ctx.write('\x1b[39m')
+}
+
+// reset_bg_color sets the current background color back to it's default value.
+[inline]
+pub fn (mut ctx Context) reset_bg_color() {
+	ctx.write('\x1b[49m')
+}
+
+// reset restores the state of all colors and text formats back to their default values.
+[inline]
+pub fn (mut ctx Context) reset() {
+	ctx.write('\x1b[0m')
+}
+
+[inline]
+pub fn (mut ctx Context) clear() {
+	ctx.write('\x1b[2J\x1b[3J')
+}
+
+// set_window_title sets the string `s` as the window title.
+[inline]
+pub fn (mut ctx Context) set_window_title(s string) {
+	print('\x1b]0;$s\x07')
+}
+
+// draw_point draws a point at position `x`,`y`.
+[inline]
+pub fn (mut ctx Context) draw_point(x int, y int) {
+	ctx.set_cursor_position(x, y)
+	ctx.write(' ')
+}
+
+// draw_text draws the string `s`, starting from position `x`,`y`.
+[inline]
+pub fn (mut ctx Context) draw_text(x int, y int, s string) {
+	ctx.set_cursor_position(x, y)
+	ctx.write(s)
+}
+
+// draw_line draws a line segment, starting at point `x`,`y`, and ending at point `x2`,`y2`.
+pub fn (mut ctx Context) draw_line(x int, y int, x2 int, y2 int) {
+	min_x, min_y := if x < x2 { x } else { x2 }, if y < y2 { y } else { y2 }
+	max_x, _ := if x > x2 { x } else { x2 }, if y > y2 { y } else { y2 }
+	if y == y2 {
+		// Horizontal line, performance improvement
+		ctx.set_cursor_position(min_x, min_y)
+		ctx.write(strings.repeat(` `, max_x + 1 - min_x))
+		return
+	}
+	// Draw the various points with Bresenham's line algorithm:
+	mut x0, x1 := x, x2
+	mut y0, y1 := y, y2
+	sx := if x0 < x1 { 1 } else { -1 }
+	sy := if y0 < y1 { 1 } else { -1 }
+	dx := if x0 < x1 { x1 - x0 } else { x0 - x1 }
+	dy := if y0 < y1 { y0 - y1 } else { y1 - y0 } // reversed
+	mut err := dx + dy
+	for {
+		// res << Segment{ x0, y0 }
+		ctx.draw_point(x0, y0)
+		if x0 == x1 && y0 == y1 {
+			break
+		}
+		e2 := 2 * err
+		if e2 >= dy {
+			err += dy
+			x0 += sx
+		}
+		if e2 <= dx {
+			err += dx
+			y0 += sy
+		}
+	}
+}
+
+// draw_dashed_line draws a dashed line segment, starting at point `x`,`y`, and ending at point `x2`,`y2`.
+pub fn (mut ctx Context) draw_dashed_line(x int, y int, x2 int, y2 int) {
+	// Draw the various points with Bresenham's line algorithm:
+	mut x0, x1 := x, x2
+	mut y0, y1 := y, y2
+	sx := if x0 < x1 { 1 } else { -1 }
+	sy := if y0 < y1 { 1 } else { -1 }
+	dx := if x0 < x1 { x1 - x0 } else { x0 - x1 }
+	dy := if y0 < y1 { y0 - y1 } else { y1 - y0 } // reversed
+	mut err := dx + dy
+	mut i := 0
+	for {
+		if i % 2 == 0 {
+			ctx.draw_point(x0, y0)
+		}
+		if x0 == x1 && y0 == y1 {
+			break
+		}
+		e2 := 2 * err
+		if e2 >= dy {
+			err += dy
+			x0 += sx
+		}
+		if e2 <= dx {
+			err += dx
+			y0 += sy
+		}
+		i++
+	}
+}
+
+// draw_rect draws a rectangle, starting at top left `x`,`y`, and ending at bottom right `x2`,`y2`.
+pub fn (mut ctx Context) draw_rect(x int, y int, x2 int, y2 int) {
+	if y == y2 || x == x2 {
+		ctx.draw_line(x, y, x2, y2)
+		return
+	}
+	min_y, max_y := if y < y2 { y, y2 } else { y2, y }
+	for y_pos in min_y .. max_y + 1 {
+		ctx.draw_line(x, y_pos, x2, y_pos)
+	}
+}
+
+// draw_empty_dashed_rect draws a rectangle with dashed lines, starting at top left `x`,`y`, and ending at bottom right `x2`,`y2`.
+pub fn (mut ctx Context) draw_empty_dashed_rect(x int, y int, x2 int, y2 int) {
+	if y == y2 || x == x2 {
+		ctx.draw_dashed_line(x, y, x2, y2)
+		return
+	}
+
+	min_x, max_x := if x < x2 { x, x2 } else { x2, x }
+	min_y, max_y := if y < y2 { y, y2 } else { y2, y }
+
+	ctx.draw_dashed_line(min_x, min_y, max_x, min_y)
+	ctx.draw_dashed_line(min_x, min_y, min_x, max_y)
+	if (max_y - min_y) & 1 == 0 {
+		ctx.draw_dashed_line(min_x, max_y, max_x, max_y)
+	} else {
+		ctx.draw_dashed_line(min_x + 1, max_y, max_x, max_y)
+	}
+	if (max_x - min_x) & 1 == 0 {
+		ctx.draw_dashed_line(max_x, min_y, max_x, max_y)
+	} else {
+		ctx.draw_dashed_line(max_x, min_y + 1, max_x, max_y)
+	}
+}
+
+// draw_empty_rect draws a rectangle with no fill, starting at top left `x`,`y`, and ending at bottom right `x2`,`y2`.
+pub fn (mut ctx Context) draw_empty_rect(x int, y int, x2 int, y2 int) {
+	if y == y2 || x == x2 {
+		ctx.draw_line(x, y, x2, y2)
+		return
+	}
+	ctx.draw_line(x, y, x2, y)
+	ctx.draw_line(x, y2, x2, y2)
+	ctx.draw_line(x, y, x, y2)
+	ctx.draw_line(x2, y, x2, y2)
+}
+
+// horizontal_separator draws a horizontal separator, spanning the width of the screen.
+[inline]
+pub fn (mut ctx Context) horizontal_separator(y int) {
+	ctx.set_cursor_position(0, y)
+	ctx.write(strings.repeat(`-`, ctx.window_width)) // /* `⎽` */
+}