1 | 'use strict'
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2 |
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3 | // These tables borrowed from `ansi`
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4 |
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5 | var prefix = '\x1b['
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6 |
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7 | exports.up = function up (num) {
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8 | return prefix + (num || '') + 'A'
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9 | }
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10 |
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11 | exports.down = function down (num) {
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12 | return prefix + (num || '') + 'B'
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13 | }
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14 |
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15 | exports.forward = function forward (num) {
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16 | return prefix + (num || '') + 'C'
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17 | }
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18 |
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19 | exports.back = function back (num) {
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20 | return prefix + (num || '') + 'D'
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21 | }
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22 |
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23 | exports.nextLine = function nextLine (num) {
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24 | return prefix + (num || '') + 'E'
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25 | }
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26 |
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27 | exports.previousLine = function previousLine (num) {
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28 | return prefix + (num || '') + 'F'
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29 | }
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30 |
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31 | exports.horizontalAbsolute = function horizontalAbsolute (num) {
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32 | if (num == null) throw new Error('horizontalAboslute requires a column to position to')
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33 | return prefix + num + 'G'
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34 | }
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35 |
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36 | exports.eraseData = function eraseData () {
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37 | return prefix + 'J'
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38 | }
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39 |
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40 | exports.eraseLine = function eraseLine () {
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41 | return prefix + 'K'
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42 | }
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43 |
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44 | exports.goto = function (x, y) {
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45 | return prefix + y + ';' + x + 'H'
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46 | }
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47 |
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48 | exports.gotoSOL = function () {
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49 | return '\r'
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50 | }
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51 |
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52 | exports.beep = function () {
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53 | return '\x07'
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54 | }
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55 |
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56 | exports.hideCursor = function hideCursor () {
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57 | return prefix + '?25l'
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58 | }
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59 |
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60 | exports.showCursor = function showCursor () {
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61 | return prefix + '?25h'
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62 | }
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63 |
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64 | var colors = {
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65 | reset: 0,
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66 | // styles
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67 | bold: 1,
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68 | italic: 3,
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69 | underline: 4,
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70 | inverse: 7,
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71 | // resets
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72 | stopBold: 22,
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73 | stopItalic: 23,
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74 | stopUnderline: 24,
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75 | stopInverse: 27,
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76 | // colors
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77 | white: 37,
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78 | black: 30,
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79 | blue: 34,
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80 | cyan: 36,
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81 | green: 32,
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82 | magenta: 35,
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83 | red: 31,
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84 | yellow: 33,
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85 | bgWhite: 47,
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86 | bgBlack: 40,
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87 | bgBlue: 44,
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88 | bgCyan: 46,
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89 | bgGreen: 42,
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90 | bgMagenta: 45,
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91 | bgRed: 41,
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92 | bgYellow: 43,
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93 |
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94 | grey: 90,
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95 | brightBlack: 90,
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96 | brightRed: 91,
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97 | brightGreen: 92,
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98 | brightYellow: 93,
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99 | brightBlue: 94,
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100 | brightMagenta: 95,
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101 | brightCyan: 96,
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102 | brightWhite: 97,
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103 |
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104 | bgGrey: 100,
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105 | bgBrightBlack: 100,
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106 | bgBrightRed: 101,
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107 | bgBrightGreen: 102,
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108 | bgBrightYellow: 103,
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109 | bgBrightBlue: 104,
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110 | bgBrightMagenta: 105,
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111 | bgBrightCyan: 106,
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112 | bgBrightWhite: 107
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113 | }
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114 |
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115 | exports.color = function color (colorWith) {
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116 | if (arguments.length !== 1 || !Array.isArray(colorWith)) {
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117 | colorWith = Array.prototype.slice.call(arguments)
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118 | }
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119 | return prefix + colorWith.map(colorNameToCode).join(';') + 'm'
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120 | }
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121 |
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122 | function colorNameToCode (color) {
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123 | if (colors[color] != null) return colors[color]
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124 | throw new Error('Unknown color or style name: ' + color)
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125 | }
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