body: //div[@class='post-main-content']
title: //div[@class='post-main-content']/h3[1]
author: //ul[@class='post-meta']//a[contains(@href, 'ispatguru.com/author/')]
date: //ul[@class='post-meta']//i[contains(@class, 'fa-calendar-alt')]/parent::a

strip: //div[@class='post-main-content']/h3[1]
strip: //p/br

strip_id_or_class: post-meta

prune: no

test_url: https://www.ispatguru.com/process-control-instruments-and-their-classification/