Add typings for mmmagic 0.4.1.

https://github.com/mscdex/mmmagic

mmmagic is an async libmagic binding for node.js for detecting content
types by data inspection.

mmmagic/mmmagic-tests.ts

@@ -0,0 +1,30 @@
+/// <reference path="mmmagic.d.ts" />
+
+import Magic = require("mmmagic");
+
+// get general description of a file
+var magic: Magic.Magic;
+
+magic = new Magic.Magic();
+magic.detectFile('node_modules/mmmagic/build/Release/magic.node', function(err: Error, result: string) {
+    if (err) throw err;
+    console.log(result);
+    // output on Windows with 32-bit node:
+});
+
+// get mime type for a file
+magic = new Magic.Magic(Magic.MAGIC_MIME_TYPE);
+magic.detectFile('node_modules/mmmagic/build/Release/magic.node', function(err: Error, result: string) {
+    if (err) throw err;
+    console.log(result);
+});
+
+// get mime type and mime encoding for a file
+magic = new Magic.Magic();
+var buf = new Buffer('import Options\nfrom os import unlink, symlink');
+
+magic.detect(buf, function(err: Error, result: string) {
+    if (err) throw err;
+    console.log(result);
+    // output: Python script, ASCII text executable
+});

mmmagic/mmmagic.d.ts

@@ -0,0 +1,37 @@
+// Type definitions for mmmagic v0.4.1
+// Project: https://github.com/mscdex/mmmagic
+// Definitions by: Andrei Sebastian Cîmpean <http://andreime.com/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+
+declare module "mmmagic" {
+    export type bitmask = number;
+    export class Magic  {
+        constructor(magicPath?: string, mask?: bitmask);
+        constructor(mask?: bitmask);
+        detectFile(path: string, callback: (err: Error, result: string) => void): void;
+        detect(data: Buffer, callback: (err: Error, result: string) => void): void;
+    }
+    export var MAGIC_NONE: bitmask; // no flags set
+    export var MAGIC_DEBUG: bitmask; // turn on debugging
+    export var MAGIC_SYMLINK: bitmask; // follow symlinks (default for non-Windows)
+    export var MAGIC_DEVICES: bitmask; // look at the contents of devices
+    export var MAGIC_MIME_TYPE: bitmask; // return the MIME type
+    export var MAGIC_CONTINUE: bitmask; // return all matches (returned as an array of strings)
+    export var MAGIC_CHECK: bitmask; // print warnings to stderr
+    export var MAGIC_PRESERVE_ATIME: bitmask; // restore access time on exit
+    export var MAGIC_RAW: bitmask; // don't translate unprintable chars
+    export var MAGIC_MIME_ENCODING: bitmask; // return the MIME encoding
+    export var MAGIC_MIME: bitmask; // (export var MAGIC_MIME_TYPE | export var MAGIC_MIME_ENCODING)
+    export var MAGIC_APPLE: bitmask; // return the Apple creator and type
+    export var MAGIC_NO_CHECK_TAR: bitmask; // don't check for tar files
+    export var MAGIC_NO_CHECK_SOFT: bitmask; // don't check magic entries
+    export var MAGIC_NO_CHECK_APPTYPE: bitmask; // don't check application type
+    export var MAGIC_NO_CHECK_ELF: bitmask; // don't check for elf details
+    export var MAGIC_NO_CHECK_TEXT: bitmask; // don't check for text files
+    export var MAGIC_NO_CHECK_CDF: bitmask; // don't check for cdf files
+    export var MAGIC_NO_CHECK_TOKENS: bitmask; // don't check tokens
+    export var MAGIC_NO_CHECK_ENCODING: bitmask // don't check text encodings
+
+}