Currently, the Regex engine in use for Auto Redactions does not support lookbehind/ahead regex matching. Lookbehind and lookahead matching would be required to automatically redact content that exist in certain fields on a document, but the field name itself.
For instance, if I have a document with the field "Name: John Doe" and only want to redact the name value.
The current regex engine also does not allow usage of assertion-characters, such as
\w, inside brackets which requires regex sections to be reformulated when adding brackets and reduces interoperability with regexs from other flavors.
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