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https://bro-tracker.atlassian.net/browse/BIT-67?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15516#comment-15516
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Seth Hall commented on BIT-67:
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This one seems to have slipped through the cracks. Should it be merged?
> Grammar ambiguity with "local" for introducing "when" variables
> ---------------------------------------------------------------
>
> Key: BIT-67
> URL: https://bro-tracker.atlassian.net/browse/BIT-67
> Project: Bro Issue Tracker
> Issue Type: Problem
> Components: Bro
> Reporter: Vern Paxson
>
> Currently there are two ways in the grammar to parse "local", one as a
> variable declaration (including a type, initialization, and attributes), and
> the other as an expression (no type or attributes, just essentially an
> initialization). I believe we added this second to support introducing
> variables to hold the delayed values resulting from "when" expressions.
> However, this leads to parsing ambiguities and in particular the inability to
> associate attributes with "local" declarations. (One such attribute we need
> is &raw_output.) So we instead need to use a different keyword for "when"
> values.
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