Fail rbbi parser while the rule text contains unpaired surrogate char

Description

During the review of https://github.com/unicode-org/icu/pull/1100 Andy suggest we file a separate ticket to ensure the rbbi parser will fail early if the rule text include unescaped unpaired surrogate char (escaped one will still be acceptable in the rule)

Assignee

Frank Yung-Fong Tang

Reporter

Frank Yung-Fong Tang

Components

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Reviewer

None

Priority

minor

Time Needed

Hours

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