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https://issues.apache.org/jira/browse/SOLR-8605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Scott Blum updated SOLR-8605:
-----------------------------
    Affects Version/s: 5.3
                       5.3.1
                       5.4
                       5.4.1
        Fix Version/s:     (was: 5.3)
                       Trunk
          Description:     (was: It's often very useful to be able to put 
comments in a large query string, or temporarily comment out part of a large 
query string.

This feature adds C-style comments that may be nested.

Query Comments Example:

{code}
description:HDTV /* TODO: +promotion:tv +promotion_date:[NOW/DAY-7DAYS TO 
NOW/DAY+1DAY] */
{code})
          Component/s: query parsers
           Issue Type: Bug  (was: New Feature)

Introduced i SOLR-7220

Regular expression queries that start with an escaped forward-slash don't work 
anymore.

{code}
Works: foo:/ab\/c/
Does not work: foo:/\/abc/
Work around, put the beginning slash in a character class: foo:/[\/]abc/
{code}

I have attached a patch to fix.

> Regular expressions starting with escaped forward slash are broken
> ------------------------------------------------------------------
>
>                 Key: SOLR-8605
>                 URL: https://issues.apache.org/jira/browse/SOLR-8605
>             Project: Solr
>          Issue Type: Bug
>          Components: query parsers
>    Affects Versions: 5.3, 5.3.1, 5.4, 5.4.1
>            Reporter: Scott Blum
>             Fix For: Trunk
>
>




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