URL with ® or ™ character breaks hyperlink

[petecooper]

• [X] I have searched open and closed issues for duplicates

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Bug description

URL with ® or ™ character breaks automatic hyperlink generation for that URL.

Steps to reproduce

1. Post message including a URL that contains ® or ™ character.
2. Note broken URL.

Actual result:

URL is partially generated, but the first instance of ® or ™ prevents the full URL being recognised.

Example URL (safe for work, PDF): https://assets.bose.com/content/dam/Bose_DAM/Web/pro/global/discontinued_products/loudspeakers/Panaray_Acoustic_Wave®_Cannon™_Loudspeaker/td_panaray_awcs.pdf

Note the black ® or ™ characters where the text should be white. Note the underlined hyperlink stops before the first ®.

Expected result:

The URL is valid, and should be detected then generated appropriately. The ® or ™ characters should not block the generation.

Screenshots

Original discovery:

Three tests - replicate original discovery, then remove the first blocking character, then the second:

iOS working as intended:

Platform info

Signal version:

1.16.3

Operating System:

macOS 10.12.6

Linked device version:

iOS 12.0.1

Link to debug log

https://debuglogs.org/9f3a9d990db8775ec17b2ea516423f5db37843fa22b4e948bcadd49f5dd07295

[dsernst]

Related to, but slightly different: https://github.com/signalapp/Signal-Desktop/issues/6674