In one of my apps I want to open a new window/tab for a "google news" query. Is there an official documentation where I can look up what all different google search parameters mean & what encoding I need to do for certain parameters like time-range. I got hold of some unofficial links like this but it is not exhaustive. I dont want to reverse engineer the sample queries that I fired on Google News page.
My goal is to just simply programatically construct the google search url & direct the user to it, I do not want to get just the JSON etc search result else I would have used the Google News Search API, which BTW is deprecated.