flow like the river

BACK_BACK/node_modules/relateurl/lib/options.js

@@ -0,0 +1,57 @@
+"use strict";
+
+var objUtils = require("./util/object");
+
+
+
+function getOptions(options, defaults)
+{
+	if ( objUtils.isPlainObject(options) )
+	{
+		var newOptions = {};
+		
+		for (var i in defaults)
+		{
+			if ( defaults.hasOwnProperty(i) )
+			{
+				if (options[i] !== undefined)
+				{
+					newOptions[i] = mergeOption(options[i], defaults[i]);
+				}
+				else
+				{
+					newOptions[i] = defaults[i];
+				}
+			}
+		}
+		
+		return newOptions;
+	}
+	else
+	{
+		return defaults;
+	}
+}
+
+
+
+function mergeOption(newValues, defaultValues)
+{
+	if (defaultValues instanceof Object && newValues instanceof Object)
+	{
+		if (defaultValues instanceof Array && newValues instanceof Array)
+		{
+			return defaultValues.concat(newValues);
+		}
+		else
+		{
+			return objUtils.shallowMerge(newValues, defaultValues);
+		}
+	}
+	
+	return newValues;
+}
+
+
+
+module.exports = getOptions;