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http://issues.apache.org/jira/browse/TAPESTRY-795?page=comments#action_12370949 
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Leonardo Quijano Vincenzi commented on TAPESTRY-795:
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I implemented a parseLocalizedNumber() Javascript method in Tacos (the file 
helper_functions.js) that could work for this. Is based on Dojo, though, but if 
anyone's interested, he can port it over to Tapestry 4.0.




> Client-side validation of numbers doesn't allow punctuation
> -----------------------------------------------------------
>
>          Key: TAPESTRY-795
>          URL: http://issues.apache.org/jira/browse/TAPESTRY-795
>      Project: Tapestry
>         Type: Bug
>   Components: Framework
>     Versions: 4.0
>     Reporter: Howard M. Lewis Ship
>     Priority: Minor

>
> Client side input validation assumes that numbers can be validated using 
> isNaN(), which knows nothing about punctiation:  1,000,000 is a valid number 
> that will be rejected.
> Further, on the server side, this value will not be handled correctly; if the 
> translator's pattern is "#" (the default), this value is truncated to "1" 
> rather than it being an input error.  In any case, the client and the server 
> should support grouping characters as defined by the active locale.

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