impure

import clipboard
import re

text = clipboard.paste()

start = text.find("Posted by")
end = text.rfind("Reply\nGive Award\nShare\nReport\nSave\nFollow\nAbout Community")

if start == -1 or end == -1:
	print(text)

impure

using UnityEngine;
using System.Collections;
using System.IO;

/*

Usage:
1. Attach this script to your chosen camera's game object.
2. Set that camera's Clear Flags field to Solid Color.
3. Use the inspector to set frameRate and framesToCapture