1 |
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2 |
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3 |
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4 |
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5 |
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6 | var colors = require('colors/safe')
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7 | , utils = require('./utils')
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8 | , repeat = utils.repeat
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9 | , truncate = utils.truncate
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10 | , pad = utils.pad;
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11 |
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12 |
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13 |
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14 |
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15 |
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16 |
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17 |
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18 |
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19 | function Table (options){
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20 | this.options = utils.options({
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21 | chars: {
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22 | 'top': '─'
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23 | , 'top-mid': '┬'
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24 | , 'top-left': '┌'
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25 | , 'top-right': '┐'
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26 | , 'bottom': '─'
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27 | , 'bottom-mid': '┴'
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28 | , 'bottom-left': '└'
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29 | , 'bottom-right': '┘'
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30 | , 'left': '│'
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31 | , 'left-mid': '├'
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32 | , 'mid': '─'
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33 | , 'mid-mid': '┼'
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34 | , 'right': '│'
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35 | , 'right-mid': '┤'
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36 | , 'middle': '│'
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37 | }
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38 | , truncate: '…'
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39 | , colWidths: []
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40 | , colAligns: []
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41 | , style: {
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42 | 'padding-left': 1
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43 | , 'padding-right': 1
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44 | , head: ['red']
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45 | , border: ['grey']
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46 | , compact : false
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47 | }
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48 | , head: []
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49 | }, options);
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50 |
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51 | if (options && options.rows) {
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52 | for (var i = 0; i < options.rows.length; i++) {
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53 | this.push(options.rows[i]);
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54 | }
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55 | }
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56 | }
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57 |
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58 |
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59 |
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60 |
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61 |
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62 | Table.prototype.__proto__ = Array.prototype;
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63 |
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64 |
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65 |
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66 |
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67 |
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68 |
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69 |
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70 |
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71 | Table.prototype.__defineGetter__('width', function (){
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72 | var str = this.toString().split("\n");
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73 | if (str.length) return str[0].length;
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74 | return 0;
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75 | });
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76 |
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77 |
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78 |
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79 |
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80 |
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81 |
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82 |
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83 |
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84 | Table.prototype.render
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85 | Table.prototype.toString = function (){
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86 | var ret = ''
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87 | , options = this.options
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88 | , style = options.style
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89 | , head = options.head
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90 | , chars = options.chars
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91 | , truncater = options.truncate
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92 | , colWidths = options.colWidths || new Array(this.head.length)
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93 | , totalWidth = 0;
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94 |
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95 | if (!head.length && !this.length) return '';
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96 |
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97 | if (!colWidths.length){
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98 | var all_rows = this.slice(0);
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99 | if (head.length) { all_rows = all_rows.concat([head]) };
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100 |
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101 | all_rows.forEach(function(cells){
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102 |
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103 | if (typeof cells === 'object' && cells.length) {
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104 | extractColumnWidths(cells);
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105 |
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106 |
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107 | } else {
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108 | var header_cell = Object.keys(cells)[0]
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109 | , value_cell = cells[header_cell];
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110 |
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111 | colWidths[0] = Math.max(colWidths[0] || 0, get_width(header_cell) || 0);
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112 |
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113 |
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114 | if (typeof value_cell === 'object' && value_cell.length) {
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115 | extractColumnWidths(value_cell, 1);
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116 | } else {
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117 | colWidths[1] = Math.max(colWidths[1] || 0, get_width(value_cell) || 0);
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118 | }
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119 | }
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120 | });
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121 | };
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122 |
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123 | totalWidth = (colWidths.length == 1 ? colWidths[0] : colWidths.reduce(
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124 | function (a, b){
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125 | return a + b
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126 | })) + colWidths.length + 1;
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127 |
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128 | function extractColumnWidths(arr, offset) {
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129 | var offset = offset || 0;
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130 | arr.forEach(function(cell, i){
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131 | colWidths[i + offset] = Math.max(colWidths[i + offset] || 0, get_width(cell) || 0);
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132 | });
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133 | };
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134 |
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135 | function get_width(obj) {
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136 | return typeof obj == 'object' && obj.width != undefined
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137 | ? obj.width
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138 | : ((typeof obj == 'object' ? utils.strlen(obj.text) : utils.strlen(obj)) + (style['padding-left'] || 0) + (style['padding-right'] || 0))
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139 | }
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140 |
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141 |
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142 | function line (line, left, right, intersection){
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143 | var width = 0
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144 | , line =
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145 | left
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146 | + repeat(line, totalWidth - 2)
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147 | + right;
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148 |
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149 | colWidths.forEach(function (w, i){
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150 | if (i == colWidths.length - 1) return;
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151 | width += w + 1;
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152 | line = line.substr(0, width) + intersection + line.substr(width + 1);
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153 | });
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154 |
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155 | return applyStyles(options.style.border, line);
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156 | };
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157 |
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158 |
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159 | function lineTop (){
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160 | var l = line(chars.top
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161 | , chars['top-left'] || chars.top
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162 | , chars['top-right'] || chars.top
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163 | , chars['top-mid']);
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164 | if (l)
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165 | ret += l + "\n";
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166 | };
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167 |
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168 | function generateRow (items, style) {
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169 | var cells = []
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170 | , max_height = 0;
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171 |
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172 |
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173 | if (!Array.isArray(items) && typeof items === "object") {
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174 | var key = Object.keys(items)[0]
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175 | , value = items[key]
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176 | , first_cell_head = true;
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177 |
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178 | if (Array.isArray(value)) {
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179 | items = value;
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180 | items.unshift(key);
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181 | } else {
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182 | items = [key, value];
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183 | }
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184 | }
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185 |
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186 |
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187 | items.forEach(function (item, i) {
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188 | var contents = item.toString().split("\n").reduce(function (memo, l) {
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189 | memo.push(string(l, i));
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190 | return memo;
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191 | }, [])
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192 |
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193 | var height = contents.length;
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194 | if (height > max_height) { max_height = height };
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195 |
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196 | cells.push({ contents: contents , height: height });
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197 | });
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198 |
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199 |
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200 | var lines = new Array(max_height);
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201 | cells.forEach(function (cell, i) {
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202 | cell.contents.forEach(function (line, j) {
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203 | if (!lines[j]) { lines[j] = [] };
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204 | if (style || (first_cell_head && i === 0 && options.style.head)) {
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205 | line = applyStyles(options.style.head, line)
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206 | }
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207 |
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208 | lines[j].push(line);
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209 | });
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210 |
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211 |
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212 | for (var j = cell.height, l = max_height; j < l; j++) {
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213 | if (!lines[j]) { lines[j] = [] };
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214 | lines[j].push(string('', i));
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215 | }
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216 | });
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217 | var ret = "";
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218 | lines.forEach(function (line, index) {
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219 | if (ret.length > 0) {
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220 | ret += "\n" + applyStyles(options.style.border, chars.left);
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221 | }
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222 |
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223 | ret += line.join(applyStyles(options.style.border, chars.middle)) + applyStyles(options.style.border, chars.right);
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224 | });
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225 |
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226 | return applyStyles(options.style.border, chars.left) + ret;
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227 | };
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228 |
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229 | function applyStyles(styles, subject) {
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230 | if (!subject)
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231 | return '';
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232 | styles.forEach(function(style) {
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233 | subject = colors[style](subject);
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234 | });
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235 | return subject;
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236 | };
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237 |
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238 |
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239 | function string (str, index){
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240 | var str = String(typeof str == 'object' && str.text ? str.text : str)
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241 | , length = utils.strlen(str)
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242 | , width = colWidths[index]
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243 | - (style['padding-left'] || 0)
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244 | - (style['padding-right'] || 0)
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245 | , align = options.colAligns[index] || 'left';
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246 |
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247 | return repeat(' ', style['padding-left'] || 0)
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248 | + (length == width ? str :
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249 | (length < width
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250 | ? pad(str, ( width + (str.length - length) ), ' ', align == 'left' ? 'right' :
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251 | (align == 'middle' ? 'both' : 'left'))
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252 | : (truncater ? truncate(str, width, truncater) : str))
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253 | )
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254 | + repeat(' ', style['padding-right'] || 0);
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255 | };
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256 |
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257 | if (head.length){
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258 | lineTop();
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259 |
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260 | ret += generateRow(head, style.head) + "\n"
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261 | }
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262 |
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263 | if (this.length)
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264 | this.forEach(function (cells, i){
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265 | if (!head.length && i == 0)
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266 | lineTop();
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267 | else {
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268 | if (!style.compact || i<(!!head.length) ?1:0 || cells.length == 0){
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269 | var l = line(chars.mid
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270 | , chars['left-mid']
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271 | , chars['right-mid']
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272 | , chars['mid-mid']);
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273 | if (l)
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274 | ret += l + "\n"
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275 | }
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276 | }
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277 |
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278 | if (cells.hasOwnProperty("length") && !cells.length) {
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279 | return
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280 | } else {
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281 | ret += generateRow(cells) + "\n";
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282 | };
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283 | });
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284 |
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285 | var l = line(chars.bottom
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286 | , chars['bottom-left'] || chars.bottom
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287 | , chars['bottom-right'] || chars.bottom
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288 | , chars['bottom-mid']);
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289 | if (l)
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290 | ret += l;
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291 | else
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292 |
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293 | ret = ret.slice(0, -1);
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294 |
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295 | return ret;
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296 | };
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297 |
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298 |
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299 |
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300 |
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301 |
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302 | module.exports = Table;
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303 |
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304 | module.exports.version = '0.0.1';
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