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https://issues.apache.org/jira/browse/NIFI-2072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17147556#comment-17147556
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Otto Fowler commented on NIFI-2072:
-----------------------------------
I'll take a shot
> Support named captures in ExtractText
> -------------------------------------
>
> Key: NIFI-2072
> URL: https://issues.apache.org/jira/browse/NIFI-2072
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Joey Frazee
> Assignee: Otto Fowler
> Priority: Major
>
> ExtractText currently captures and creates attributes using numeric indices
> (e.g, attribute.name.0, attribute.name.1, etc.) whether or not the capture
> groups are named, i.e., patterns like (?<name>\w+).
> In addition to being more faithful to the provided regexes, named captures
> could help simplify data flows because you wouldn't have to add superfluous
> UpdateAttribute steps which are just renaming the indexed captures to more
> interpretable names.
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