Modify the table component to support format tags and Chinese content alignment, and add column alignment options. Hope to merge it into the npm repository

'use strict'; var blessed = require('blessed') , Node = blessed.Node , Box = blessed.Box , stripAnsi = require('strip-ansi') , stringWidth = require('string-width');

function Table(options) {

var self = this;

if (!(this instanceof Node)) { return new Table(options); }

if (Array.isArray(options.columnSpacing)) { throw 'Error: columnSpacing cannot be an array.\r\n' + 'Note: From release 2.0.0 use property columnWidth instead of columnSpacing.\r\n' + 'Please refere to the README or to https://github.com/yaronn/blessed-contrib/issues/39'; }

if (!options.columnWidth) { throw 'Error: A table must get columnWidth as a property. Please refer to the README.'; }

options = options || {}; options.columnSpacing = options.columnSpacing==null? 10 : options.columnSpacing; options.bold = true; options.selectedFg = options.selectedFg || 'white'; options.selectedBg = options.selectedBg || 'blue'; options.fg = options.fg || 'green'; options.bg = options.bg || ''; options.interactive = (typeof options.interactive === 'undefined') ? true : options.interactive; this.options = options; Box.call(this, options);

this.rows = blessed.list({ //height: 0, top: 2, width: 0, left: 1, style: { selected: { fg: options.selectedFg , bg: options.selectedBg } , item: { fg: options.fg , bg: options.bg }}, keys: options.keys, vi: options.vi, mouse: options.mouse, tags: true, interactive: options.interactive, screen: this.screen });

this.append(this.rows);

this.on('attach', function() { if (self.options.data) { self.setData(self.options.data); } });

}

Table.prototype = Object.create(Box.prototype);

Table.prototype.focus = function(){ this.rows.focus(); };

Table.prototype.render = function() { if(this.screen.focused == this.rows) this.rows.focus();

this.rows.width = this.width-3; this.rows.height = this.height-4; Box.prototype.render.call(this); };

Table.prototype.setData = function(table) { var self = this;

var calculateTagLength = function(str) { const tagRegex = /{[^}]+}/g; // match all {content} tags let totalTagLength = 0; let match;

while ((match = tagRegex.exec(str)) !== null) { totalTagLength += match[0].length;
}

return totalTagLength; };

var dataToString = function(d) { var str = ''; d.forEach(function(r, i) { var colsize = self.options.columnWidth[i] , strip = stripAnsi(r.toString()) , taglens = calculateTagLength(r.toString()) , ansiLen = stringWidth(r.toString()) - stringWidth(strip) , spaceLength = colsize - stringWidth(strip) + taglens + self.options.columnSpacing ; r = r.toString().substring(0, colsize + ansiLen + taglens); //compensate for ansi len if (spaceLength < 0) { spaceLength = 0; } var spaces = new Array(spaceLength).join(' '); var align = (!self.options.columnAlign)? 'left' : self.options.columnAlign[i]; if(align === 'left') { str += r + spaces; }else if(align === 'right'){ str += spaces + r; }else { var lspace = spaces.substring(0, spaces.length/2); var rspace = spaces.substring(spaces.length/2); str += lspace + r + rspace; } }); return str; };

var formatted = [];

table.data.forEach(function(d) { var str = dataToString(d); formatted.push(str); }); this.setContent(dataToString(table.headers)); this.rows.setItems(formatted); };

Table.prototype.getOptionsPrototype = function() { return { keys: true , fg: 'white' , interactive: false , label: 'Active Processes' , width: '30%' , height: '30%' , border: {type: 'line', fg: 'cyan'} , columnSpacing: 10 , columnWidth: [16, 12] , data: { headers: ['col1', 'col2'] , data: [ ['a', 'b'] , ['5', 'u'] , ['x', '16.1'] ]} }; };

Table.prototype.type = 'table';

module.exports = Table;