[ http://issues.apache.org/jira/browse/TAPESTRY-858?page=all ]
Jesse Kuhnert resolved TAPESTRY-858.
------------------------------------
Resolution: Won't Fix
> validators:pattern=<somepattern> does not support useful regex patterns
> -------------------------------------------------------------------------
>
> Key: TAPESTRY-858
> URL: http://issues.apache.org/jira/browse/TAPESTRY-858
> Project: Tapestry
> Issue Type: Wish
> Components: Framework
> Affects Versions: 4.0
> Environment: All
> Reporter: Sean Scott
> Priority: Minor
>
> ValidatorFactoryImpl.constructValidatorList uses a regular expression to
> parse the validators configuration string. The configuration string can
> contain the type pattern=<some regular expression>. If the regular
> expression contains a [ character (like most do) then the validators string
> is not processed correctly.
> Currently:
> private static final String PATTERN =
> "^\\s*(\\$?\\w+)\\s*(=\\s*(((?!,|\\[).)*))?";
> Perhaps it can be changed so that the regex has start with ^ and end with $
> and thus maybe a PATTERN like
> ^\s*(\$?\w+)\s*(=(\^.*\$)|(\s*(((?!,|\[).)*)))?
> can be used.
> To test, try using this value
> validators="validators:required,pattern=(0[1-9]|1[012])/(0[1-9]|[12][0-9]|3[01])/(19|20)\d\d"
> (mm/dd/yyyy)
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