This resolves #1

bin/subl2ultisnips

@@ -1,63 +1,66 @@
 #!/usr/bin/env node
 var xml2js	= require('xml2js'),
-	fs		= require('fs'),
-	process = require('process');
+    fs		= require('fs'),
+    process = require('process');
 
 var Converter = function(input, output){
-	if( input === undefined || input === null || !fs.existsSync(input) ) 
-		throw 'Snippet file not exist';
-
-	this.parser	= new xml2js.Parser();
-	this.input = input;
-	this.output = output || 'converted.snippets';
-	this.init();
+    if( input === undefined || input === null || !fs.existsSync(input) ) 
+        throw 'Snippet file not exist';
+
+    this.parser	= new xml2js.Parser();
+    this.input = input;
+    this.output = output || 'converted.snippets';
+    this.snippetExtensionPattern = /\.sublime-snippet$/;
+    this.init();
 };
 Converter.prototype.init = function() {
-	var stats = fs.lstatSync(this.input);
-	if(stats.isDirectory()){
-		var files = fs.readdirSync(this.input);
-		for(var i=0;i<files.length;i++){
-			this.parseXml(this.input+files[i], this.createSnippetFile);
-		}
-	}else{
-		this.parseXml(this.input, this.createSnippetFile);
-	}
+    var stats = fs.lstatSync(this.input);
+    if(stats.isDirectory()){
+        var files = fs.readdirSync(this.input);
+        for(var i=0;i<files.length;i++){
+            if(!this.snippetExtensionPattern.test(files[i])) continue;
+            if(!/\/$/.test(this.input)) this.input += "/";
+            this.parseXml(this.input+files[i], this.createSnippetFile);
+        }
+    }else{
+        this.parseXml(this.input, this.createSnippetFile);
+    }
 }; 
 Converter.prototype.parseXml = function(filename, callback) {
-	var t=this;
-	fs.readFile(filename, function(err, data){
-		t.parser.parseString(data, callback.bind(t));
-	});
+    var t=this;
+    fs.readFile(filename, function(err, data){
+        t.parser.parseString(data, callback.bind(t));
+    });
 };
 
 Converter.prototype.createSnippetFile = function(err, data) {
-	if(err) throw err;
-	
-	if(data.snippet === undefined ||
-	    data.snippet.tabTrigger === undefined ||
-		data.snippet.content === undefined)
-	{	
-		console.log('Failed to process snippet.');
-		return;
-	}
+    if(err) throw err;
+
+    if(data.snippet === undefined ||
+       data.snippet.tabTrigger === undefined ||
+           data.snippet.content === undefined)
+        {	
+            console.log('Failed to process snippet.');
+            return;
+        }
 
-	var snippet = [
-		'snippet '+data.snippet.tabTrigger+
-		(data.snippet.description?' "'+data.snippet.description+'"':''),
-		data.snippet.content.toString(),
-		'endsnippet'
-	].join('\n');
+        var snippet = [
+            'snippet '+data.snippet.tabTrigger+
+                (data.snippet.description?' "'+data.snippet.description+'"':''),
+            data.snippet.content.toString(),
+            'endsnippet'
+        ].join('\n');
 
-	fs.appendFile(this.output, snippet+"\n\n",function(err){
-		if(err) throw err;
-		console.log(data.snippet.tabTrigger+' appended');
-	});
+        fs.appendFile(this.output, snippet+"\n\n",function(err){
+            if(err) throw err;
+            console.log(data.snippet.tabTrigger+' appended');
+        });
 }; 
 
 var argv = process.argv.splice(2);
 if(argv[0] !== undefined){
-	var output = argv[1] || null;
-	new Converter(argv[0], output);
+    var output = argv[1] || null;
+    new Converter(argv[0], output);
 } else {
-	console.log('sublime2ultisnip [directory/file] [output file]'); 
+    console.log('sublime2ultisnip [directory/file] [output file]'); 
 }