generator-react-gulp-browserify-less/app/templates/preprocessor.js

A Yeoman Generator for facebook's React framework. It includes gulp, browserify,babel,source maps, livereload and famous official Twitter bootstrap LESS version.

var ReactTools = require('react-tools');
module.exports = {
    process: function(src) {
        return ReactTools.transform(src, {
            harmony: true
        });
    }
};