Restructured termcolor to term module

vlib/term/colors.v

@@ -0,0 +1,109 @@
+// Copyright (c) 2019 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, open, close string) string {
+    return '\x1b[' + open + 'm' + msg + '\x1b[' + close + 'm'
+}
+
+pub fn bg_black(msg string) string {
+    return format(msg, '40', '49')
+}
+
+pub fn bg_blue(msg string) string {
+    return format(msg, '44', '49')
+}
+
+pub fn bg_cyan(msg string) string {
+    return format(msg, '46', '49')
+}
+
+pub fn bg_green(msg string) string {
+    return format(msg, '42', '49')
+}
+
+pub fn bg_magenta(msg string) string {
+    return format(msg, '45', '49')
+}
+
+pub fn bg_red(msg string) string {
+    return format(msg, '41', '49')
+}
+
+pub fn bg_white(msg string) string {
+    return format(msg, '47', '49')
+}
+
+pub fn bg_yellow(msg string) string {
+    return format(msg, '43', '49')
+}
+
+pub fn black(msg string) string {
+    return format(msg, '30', '39')
+}
+
+pub fn blue(msg string) string {
+    return format(msg, '34', '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 dim(msg string) string {
+    return format(msg, '2', '22')
+}
+
+pub fn green(msg string) string {
+    return format(msg, '32', '39')
+}
+
+pub fn gray(msg string) string {
+    return format(msg, '90', '39')
+}
+
+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 reset(msg string) string {
+    return format(msg, '0', '0')
+}
+
+pub fn red(msg string) string {
+    return format(msg, '31', '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 yellow(msg string) string {
+    return format(msg, '33', '39')
+}

vlib/term/control.v

@@ -0,0 +1,110 @@
+// Copyright (c) 2019 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(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(x int,y int) {
+    print('\x1b[$y;$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) string {
+    return '\x1b[$n$direction'
+}
+
+pub fn cursor_up(n int) {
+    print(move(n,'A'))
+}
+
+pub fn cursor_down(n int) {
+    print(move(n,'B'))
+}
+
+pub fn cursor_forward(n int) {
+    print(move(n,'C'))
+}
+
+pub fn cursor_back(n int) {
+    print(move(n,'D'))
+}
+
+// type: 0 -> current cursor postion to end of the screen
+// type: 1 -> current cursor postion 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')
+}
+
+pub fn erase_clear()
+{
+    erase_display('2')
+}
+
+pub fn erase_del_clear()
+{
+    erase_display('3')
+}
+
+// type: 0 -> current cursor postion to end of the line
+// type: 1 -> current cursor postion 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')
+}