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