2.0.0-beta.1: API improvements

v2 Should be a backward-compatible release. But possibly some (very) old browsers are no longer supported
because of the use of Function.prototype.name. Tested on Internet Explorer 11, Edge 41, Opera 49, Chrome 63.
Please test before upgrading and report any issues in the [issue tracker](https://github.com/download/ulog/issues).
Not tested in Safari because I do not have access to a Mac. Help in testing welcome!

* Loggers are functions now. Supports debug-style API
* Logger function defaults to level DEBUG
* Logger function accepts a level name as first parameter
* Added aliases 'verbose' and 'silly' for levels 'log' and 'trace', respectively
* Ulog now supports hooks for logger extension and formatters
* Ulog should now be a drop-in replacement for [debug](https://npmjs.com/package/debug)

.travis.yml

@@ -4,6 +4,7 @@ node_js:
   - "6"
   - "5"
   - "4"
+  - "0.10"
 # https://github.com/greenkeeperio/greenkeeper-lockfile
 before_install:
 - npm install -g npm@5

README.md

@@ -1,4 +1,4 @@
-# ulog <sub><sup>v1.1.0</sup></sub>
+# ulog <sub><sup>v2.0.0-beta.1</sup></sub>
 ### Microscopically small universal logging library
 
 [![npm](https://img.shields.io/npm/v/ulog.svg)](https://npmjs.com/package/ulog)
@@ -19,8 +19,8 @@ Even with these extra features, ulog is still **very** small, weighing
 in just over 1 kB minified and gzipped.
 
 ## Download
-* [ulog.umd.js](https://cdn.rawgit.com/download/ulog/1.1.0/ulog.umd.js) (~3kB, source)
-* [ulog.min.js](https://cdn.rawgit.com/download/ulog/1.1.0/ulog.min.js) (~2kB, minified)
+* [ulog.umd.js](https://cdn.rawgit.com/download/ulog/2.0.0-beta.1/ulog.umd.js) (~3kB, source)
+* [ulog.min.js](https://cdn.rawgit.com/download/ulog/2.0.0-beta.1/ulog.min.js) (~2kB, minified)
 
 ## Install
 ```sh
@@ -55,7 +55,7 @@ define(['ulog'], function(ulog){
 
 ### Script tag
 ```html
-<script src="https://cdn.rawgit.com/download/ulog/1.1.0/ulog.min.js"></script>
+<script src="https://cdn.rawgit.com/download/ulog/2.0.0-beta.1/ulog.min.js"></script>
 ```
 
 ## Logging methods

browser.js

@@ -1,4 +1,5 @@
 var log = require('./ulog')
+
 var qs = location.search.substring(1),
 		args = qs && qs.split('&'),
 		lvl, dbg, i, m
@@ -13,9 +14,9 @@ for (i=0; m=args && args[i] && args[i].split('='); i++) {
 	m[0] == 'debug' ? dbg = m[1] : 0
 }
 
-log.con = function(){return window.console && console}
+log.con = function(){return window.console}
 dbg && log.enable(dbg)
-var ulog = log()
+log()
 log.level = lvl || log.WARN
 
-module.exports = ulog
+module.exports = log

build/build-umd.js

@@ -4,19 +4,17 @@ var path = require('path')
 var root = path.resolve(process.cwd())
 
 var commonScript = fs.readFileSync(path.resolve(root, 'ulog.js'), 'utf8')
-commonScript = commonScript.replace('module.exports = log', '')
+commonScript = commonScript.replace('module.exports = ulog', '')
 
 var browserScript = fs.readFileSync(path.resolve(root, 'browser.js'), 'utf8')
 browserScript = browserScript.replace("var log = require('./ulog')", '')
-browserScript = browserScript.replace('module.exports = ulog', 'return ulog')
+browserScript = browserScript.replace('module.exports = log', 'return log')
 
 var combinedScript = commonScript + browserScript
 
 var umdScript =
 		"(function(u,m,d){\n" +
-		"\tif (typeof define == 'function' && define.amd) define(m,[],d)\n" +
-		"\telse if (typeof module == 'object' && module.exports) module.exports = d()\n" +
-		"\telse u[m] = d()\n" +
+		"\ttypeof define == 'function' && define.amd ? define(m,[],d) : (u[m] = d())\n" +
 		"})(this, \'ulog\', function(){'use strict'\n" +
 		combinedScript + '\n' +
 		"}) // umd\n"

microscopical.spec.js

@@ -5,6 +5,6 @@ var node = typeof window != 'object'
 describe('ulog', function(){
 	it('is microscopically small (~2kB minified, ~1kB gzipped)', function(){
 		var stats = fs.statSync("ulog.min.js")
-		expect(stats.size).to.be.below(2000)
+		expect(stats.size).to.be.below(2500)
 	})
 })

node.js

@@ -1,23 +1,32 @@
 var log = require('./ulog')
 
-var level, debug
-
-if (process.env.LOG  ) {level = process.env.LOG}
-if (process.env.DEBUG) {debug = process.env.DEBUG}
+var lvl, dbg
+if (process.env.LOG  ) {lvl = process.env.LOG}
+if (process.env.DEBUG) {dbg = process.env.DEBUG}
 
 var fd = process.env.DEBUG_FD && parseInt(process.env.DEBUG_FD, 10),
-	c = console;
+    c = console;
 if (typeof fd == 'number') {
 	var util = require('util'),
 		stream = createWritableStdioStream(fd),
 		logger = function(){stream.write(util.format.apply(this, arguments) + '\n')}
 	c = {error:logger, warn:logger, info:logger, log:logger, trace:logger}
 }
 
+log.extends.push(function(o,p){
+	// makes Node behave like browsers 
+	o.assert = function(){
+		var a=[].slice.call(arguments), ok=a.shift()
+		if (!ok) {o.error.apply(o, a)}
+	}
+})
+
 log.con = function(){return c}
-if (debug) {log.enable(debug)}
-module.exports = log()
-log.level = level || log.INFO
+if (dbg) {log.enable(dbg)}
+log()
+log.level = lvl || log.INFO
+
+module.exports = log
 
 // SEE https://github.com/visionmedia/debug/blob/2.2.0/node.js#L144
 function createWritableStdioStream (fd) {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ulog",
-  "version": "1.1.0",
+  "version": "2.0.0-beta.1",
   "description": "Microscopically small universal logging library",
   "main": "node.js",
   "browser": "browser.js",
@@ -12,7 +12,8 @@
     "build": "cross-env NODE_ENV=production npm run -S build-all",
     "release": "npm run -S clean && npm run -S build && npm run -S test",
     "test": "mocha *.spec.js",
-    "dev": "webpack-dev-server --output-path /test --output-filename ulog.spec.js \"mocha-loader!./ulog.spec.js\" --content-base test --port 8888"
+    "dev": "webpack-dev-server --output-path /test --output-filename ulog.spec.js \"mocha-loader!./ulog.spec.js\" --content-base test --port 8888",
+    "debug": "webpack-dev-server --output-path /test --output-filename debug.spec.js \"mocha-loader!./debug.spec.js\" --content-base test --port 8888"
   },
   "keywords": [
     "universal-components",
@@ -35,7 +36,7 @@
     "email": "[email protected]",
     "url": "http://StijnDeWitt.com"
   },
-  "copyright": "Copyright 2016 by [Stijn de Witt](http://StijnDeWitt.com). Some rights reserved.",
+  "copyright": "Copyright 2017 by [Stijn de Witt](http://StijnDeWitt.com). Some rights reserved.",
   "license": "CC-BY-4.0",
   "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
   "repository": {

ulog.js

@@ -3,78 +3,70 @@
 // © 2017 by Stijn de Witt, some rights reserved
 // License: CC-BY-4.0
 
-function log(name){
-	return name
-		? (mods[name] ? mods[name] : (mods[name] = enhance({name:name}, log)))
-		: (log.debug ? log : enhance(log))
+function log(n){
+	return !n ? extend(log) : mods[n] || (mods[n] = extend(create(n), log))
 }
 
-log.ulog = {version:'1.1.0'}
+log.formats = []
+log.extends = []
 
-log.enable = function(str) {
-	var i, split = (str || '').split(/[\s,]+/);
+log.enable = function(s) {
+	var i, split = (s || '').split(/[\s,]+/);
 	for (i=0; i<split.length; i++) {
 		if (split[i]) {
-			str = split[i].replace(/\*/g, '.*?')
-			if (str[0] === '-') skipMods.push(new RegExp('^' + str.substr(1) + '$'))
-			else dbgMods.push(new RegExp('^' + str + '$'))
+			s = split[i].replace(/\*/g, '.*?')
+			if (s[0] === '-') skipMods.push(new RegExp('^' + s.substr(1) + '$'))
+			else dbgMods.push(new RegExp('^' + s + '$'))
 		}
 	}
 	for (i in mods) patch(mods[i])
 }
 
-log.enabled = function(name) {
+log.enabled = function(s) {
 	var i;
 	for (i=0; i<skipMods.length; i++)
-		if (skipMods[i].test(name)) return
+		if (skipMods[i].test(s)) return
 	for (i=0; i<dbgMods.length; i++)
-		if (dbgMods[i].test(name)) {return true}
+		if (dbgMods[i].test(s)) {return true}
 }
 
 log.disable = log.enable.bind(log, '')
 
 var LVL = {ERROR:1, WARN:2, INFO:3, LOG:4, DEBUG:5, TRACE:6},
-		names = Object.keys(LVL).map(function(x){return x.toLowerCase()}),
+		names = {error:1, warn:2, info:3, log:4, verbose:4, debug:5, trace:6, silly:6, dir:0, table:0, time:0, timeEnd:0, assert:0}
 		mods = {}, dbgMods = [], skipMods = []
 
-function enhance(o, parent, level) {
+function create(n,r) {
+	eval("r = {'" + n + "': function() {var a = [].slice.call(arguments), m = a.length > 1 && names[a[0]] ? a.shift() : 'debug'; for (var i=0; i<log.formats.length; i++) log.formats[i](mods[n],m,a); return mods[n][m].apply(mods[n], a)}}[n]")
+	return r.name ? r : Object.defineProperty(r, 'name', {get:function(){return n}})
+}
+
+function extend(o,p,l) {
+	if (o.log) return
 	o.NONE = 0
+	o.ulog = {version:'2.0.0-beta.1'}
 	for (var key in LVL) {o[key] = LVL[key]}
 	Object.defineProperty(o, 'level', {
-		get: function(){return level !== undefined ? level : parent && parent.level},
+		get: function(){return l !== undefined ? l : p && p.level},
 		set: function(n) {
-			if ((n === undefined) && parent) {level = undefined}
+			if ((n === undefined) && p) l = undefined
 			else {
 				var lvl = n && (Number(n)!==Number(n) ? o[n.toUpperCase()] : Number(n))
-				if (lvl >= 0 && lvl <= 6) {level = lvl}
+				if (lvl >= 0 && lvl <= 6) l = lvl
 			}
 			patch(o)
-			if (!parent) {for (mod in mods) {patch(mods[mod])}}
+			if (!p) {for (mod in mods) {patch(mods[mod])}}
 		}
 	})
-	patch(o, parent)
-	o.dir =  bnd('dir') || nop
-	o.table = bnd('table') || nop
-	o.time = bnd('time') || nop
-	o.timeEnd = bnd('timeEnd') || nop
-	// makes Node behave like browsers 
-	o.assert = typeof window == 'object' && bnd('assert') || function(){
-		var a=[].concat.apply([], arguments), ok=a.shift()
-		if (!ok) {o.error.apply(o, a)}
-	}
+	patch(o)
+	for (var i=0; i<log.extends.length; i++) log.extends[i](o,p)
 	return o
 }
 
 function patch(o) {
 	var lvl = Math.max(o.name && log.enabled(o.name) && o.DEBUG || o.level, o.level)
-	for (var i=0,name; name=names[i]; i++) {
-		o[name] = lvl <= i
-			? nop
-			: (
-				bnd(name) ||
-				(typeof print == 'function' && print) ||
-				nop
-			)
+	for (var n in names) {
+		o[n] = lvl < names[n] ? nop : bnd(n) ||	(typeof print == 'function' && print) || nop
 	}
 }