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https://issues.apache.org/jira/browse/CASSANDRA-8439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14238402#comment-14238402
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Michaël Figuière commented on CASSANDRA-8439:
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Sorry, missed it. Thanks!
> Consider using a symbol that won't have to be escaped around UDF's body
> -----------------------------------------------------------------------
>
> Key: CASSANDRA-8439
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8439
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Michaël Figuière
>
> Right now the CQL grammar defines the UDF's body as a {{STRING_LITERAL}}. I
> understand that this is convenient in the grammar and avoid creating a
> special type just for these bodies. But the problem is that a quote is a
> fairly common symbol in the programming languages that will be used inside
> this body, which means that the developer will need to escape all these
> quotes in the UDF's body. That will be fairly annoying, not quite readable
> and tedious to maintain (à la backslash in Java Regexes...).
> Could we consider using curly braces or parentheses as delimiters? Though, I
> don't realize how hard it would be to use such asymmetric delimiters in the
> ANTLR grammar while still allowing them to be used within the body of the UDF.
> Another symmetric delimiter could be considered instead otherwise.
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