Please help with a regex that will find a pattern like this ✖ or this ∀ or this Π

Each line in TEXT represents potential input data. The regex is useless so far as my original using assertions neglected the case where required matches occur between double quotes.

Tests the string if it does contain valid latitude and longitude parameters

Matches an Ip and any 3 words and a number after separated by any number of spacing characters.

Allowing for complex passwords

Finds the outermost pair of parentheses. Compatible with any amount of nesting

Matches the video id in FB links

Goal is match example lines which are not comments.

try to match just the name from this: Copyright © 2005 Candy Arrington. Used by permission. All rights reserved.

A regular expression to parse a HTML 'Link' header.