Last active
May 28, 2023 16:41
-
-
Save quimcalpe/7626075 to your computer and use it in GitHub Desktop.
Ansi Tables on console
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| var ansi = require("ansi"); | |
| var cursor = ansi(process.stdout); | |
| var colors = [ | |
| "white", "black", "blue", "cyan", "green", "magenta", "red", "yellow", "grey", | |
| "brightBlack", "brightRed", "brightGreen", "brightYellow", "brightBlue", "brightMagenta", "brightCyan", "brightWhite" | |
| ]; | |
| var styles = [ "bold", "italic", "underline", "inverse" ]; | |
| colors.forEach( function (color) { | |
| String.prototype[color] = function () { | |
| this._color = color; | |
| return this; | |
| }; | |
| }); | |
| styles.forEach( function (style) { | |
| String.prototype[style] = function () { | |
| if ( !this._styles ) this._styles = []; | |
| this._styles.push(style); | |
| return this; | |
| }; | |
| }); | |
| function printTable (table, opts) { | |
| opts = opts || { align : [] }; | |
| // compute row length | |
| if ( table.length === 0 ) return; | |
| var numCols = table.reduce(function (maxCols, col) { | |
| return ( col.length > maxCols ) ? col.length : maxCols; | |
| }, 0); | |
| var maxColumnLengths = Array(numCols); | |
| for ( var i = 0; i < numCols; i++ ) maxColumnLengths[i] = 0; | |
| table.map(function (row) { | |
| var i = 0; | |
| for ( ; i < numCols; i++ ) { | |
| if ( row[i] !== undefined && row[i].length > maxColumnLengths[i] ) { | |
| maxColumnLengths[i] = row[i].length; | |
| } | |
| } | |
| }); | |
| // print table | |
| var output = []; | |
| table.forEach(function (row) { | |
| row.forEach(function (col, index) { | |
| if ( col._color ) { | |
| cursor[col._color](); | |
| } | |
| if ( col._styles ) { | |
| col._styles.forEach( function (style) { | |
| cursor[style](); | |
| }); | |
| } | |
| process.stdout.write(padString(col.toString(), maxColumnLengths[index], opts.align[index])); | |
| process.stdout.write(" "); | |
| cursor.reset(); | |
| }); | |
| process.stdout.write("\n"); | |
| }); | |
| } | |
| function padString(str, padLen, align, padChar) { | |
| if ( str.length >= padLen ) return str; | |
| if ( padChar === undefined ) padChar = " "; | |
| switch ( align ) { | |
| case "center": | |
| var availableSlots = padLen - str.length; | |
| var right = Math.ceil(availableSlots / 2); | |
| var left = availableSlots - right; | |
| return Array(left+1).join(padChar) + str + Array(right+1).join(padChar); | |
| break; | |
| case "right": | |
| return Array(padLen + 1 - str.length).join(padChar) + str; | |
| break; | |
| default: | |
| return str + Array(padLen + 1 - str.length).join(padChar); | |
| break; | |
| } | |
| } | |
| var table = [ | |
| [ "Package".blue().underline(), "Current".blue().underline(), "Wanted".blue().underline(), "Latest".blue().underline(), "Path".blue().underline() ], | |
| [ "fstream".red(), "0.1.24", "0.1.25".green(), "0.1.25".magenta(), "fstream".brightBlack() ], | |
| [ "lru-cache".yellow(), "2.3.1", "2.3.1".green(), "2.5.0".magenta(), "lru-cache".brightBlack() ], | |
| [ "node-gyp".red(), "0.11.0", "0.11.0".green(), "0.12.1".magenta(), "node-gyp".brightBlack() ], | |
| [ "npm-registry-client".red(), "0.2.29", "0.2.30".green(), "0.2.30".magenta(), "npm-registry-client".brightBlack() ] | |
| ]; | |
| printTable( table, { align : [ "left", "right", "right", "right", "left" ] } ); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment