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From "Martin Uhlir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (WW-3737) Parsing of excludePattern breaks regex
Date Wed, 10 Oct 2012 08:41:03 GMT

    [ https://issues.apache.org/jira/browse/WW-3737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473094#comment-13473094
] 

Martin Uhlir commented on WW-3737:
----------------------------------

Possible regex suggestions to split the strings:
1) At "," except cases where there is a preceding "\" right before ","
{noformat}
"(?<!\\\\),"
{noformat}

2) At "," except cases where "," is followed by decimal number(s) (or no decimal number at
all) followed by "}"
{noformat}
",(?![0-9]*\\})"
{noformat}

Lukasz, what exactly is your concern?
                
> Parsing of excludePattern breaks regex 
> ---------------------------------------
>
>                 Key: WW-3737
>                 URL: https://issues.apache.org/jira/browse/WW-3737
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Dispatch Filter
>            Reporter: Erlend Oftedal
>             Fix For: 2.5
>
>
> See buildExcludedPatternsList() in http://svn.apache.org/repos/asf/struts/struts2/trunk/core/src/main/java/org/apache/struts2/dispatcher/ng/InitOperations.java
> It simply splits on commas, making it impossible to write regex like /products/[0-9]{1,10}.json
as this will be split in two.
> Please supply a way to escape commas by sticking a \ in front or something like that.

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