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From "Billy Liu (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (KYLIN-3135) regular expression of multi line comment pattern was wrong
Date Wed, 24 Jan 2018 07:20:00 GMT

     [ https://issues.apache.org/jira/browse/KYLIN-3135?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Billy Liu reassigned KYLIN-3135:
--------------------------------

    Assignee: hahaya

> regular expression of multi line comment pattern was wrong
> ----------------------------------------------------------
>
>                 Key: KYLIN-3135
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3135
>             Project: Kylin
>          Issue Type: Bug
>            Reporter: hahaya
>            Assignee: hahaya
>            Priority: Major
>         Attachments: 0001-KYLIN-3135.patch
>
>
> Hi,all.
> Recently,I was testing query function of kylin,
> sometimes I just comment with /**/ instead of delete the sql,cause I need to query and
compare again.
> And I was confused that the results says it was "No Support Sql",but it can query success
without comments.
> For example,
> {code:java}
> /*
> select count(*) from kylin_sales;
> */
> select * from kylin_sales;
> {code}
> So I view the code and find the commentPatterns of  /\**/  was 
> {code:java}
> /\\*[^\\*/]*
> {code}
> ,clearly it was wrong.
> The regular expression of [abc] means any character in abc,such as a or b.
> So the [^\\*/] means that * or / can't appear,
> But under this circumstances the */ need to be as a string not separated character.
> the */ can't appear not * or / can't appear.
> I rewrite the regular expression,
> {code:java}
> /\\*[\\s\\S]*?\\*/
> {code}
> if you think it's necessary to change the old code,please review and replace it.
> Thank for you time.



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