Node环境下实现less编译

今天在学习less的时候发现了在node中是可以渲染的，通过调用less的render方法渲染来生成css，所以写了个小Demo。

var less = require('less');
var http = require('http');
http.createServer(function(req,res,err){	
    res.writeHead(200, {'Content-Type': 'text/plain charset=utf-8'});
    less.render(tmp,{compress: true}, function (e, css) {
        name = css['css'];
    });
    res.end(name);
}).listen(8080);

var name = null;
var tmp = '
@base: #f938ab;
.box-shadow(@style, @c)when(iscolor(@c)){
-webkit-box-shadow: @style @c;
box-shadow: @style @c;
}
.box-shadow(@style, @alpha: 50%) when (isnumber(@alpha)) {
.box-shadow(@style, rgba(0, 0, 0, @alpha));
}
.box {
color: saturate(@base, 5%);
border-color: lighten(@base, 30%);
div { .box-shadow(0 0 5px, 30%) }
}';