From: Andy Allan <git@gravitystorm.co.uk>
Date: Wed, 1 Apr 2020 15:53:37 +0000 (+0200)
Subject: Ensure that urls are only valid if the entire string is a url
X-Git-Tag: live~3231^2
X-Git-Url: https://git.openstreetmap.org./rails.git/commitdiff_plain/a219df24ca8e621e8936bb9fc8b75f8f7f1e15da?hp=a219df24ca8e621e8936bb9fc8b75f8f7f1e15da

Ensure that urls are only valid if the entire string is a url

This replaces our homegrown regexps (that didn't quite work) with
ruby built-in regexps, and uses the termination anchor to ensure
that the entire string, not just the first part, is validated.
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