in with the new

build-tools/loadersByExtension.js

@@ -0,0 +1,28 @@
+function extsToRegExp(exts) {
+	return new RegExp("\\.(" + exts.map(function(ext) {
+		return ext.replace(/\./g, "\\.");
+	}).join("|") + ")(\\?.*)?$");
+}
+
+module.exports = function loadersByExtension(obj) {
+	var loaders = [];
+	Object.keys(obj).forEach(function(key) {
+		var exts = key.split("|");
+		var value = obj[key];
+		var entry = {
+			extensions: exts,
+			test: extsToRegExp(exts)
+		};
+		if(Array.isArray(value)) {
+			entry.loaders = value;
+		} else if(typeof value === "string") {
+			entry.loader = value;
+		} else {
+			Object.keys(value).forEach(function(valueKey) {
+				entry[valueKey] = value[valueKey];
+			});
+		}
+		loaders.push(entry);
+	});
+	return loaders;
+};