OS X应用程序的脚本引擎

I am going to develop an application for OS X and I need some scripting engine for it. The purpose of the scripts is to receive a text on their input (HTML file in most cases), parse it in some way and return the data to my app. These scripts should be easily editable by the users, therefore they should have some common used syntax like C or pascal.I am going to develop an application for OS X a