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From Juan Pablo Santos Rodríguez (JIRA) <j...@apache.org>
Subject [jira] [Updated] (LANG-1016) NumberUtils#isParseable method(s)
Date Mon, 07 Jul 2014 18:52:34 GMT

     [ https://issues.apache.org/jira/browse/LANG-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Juan Pablo Santos Rodríguez updated LANG-1016:
----------------------------------------------

    Attachment: LANG-1016.patch

Hi Benedikt,

attached suggested patch


thanks!

> NumberUtils#isParseable method(s)
> ---------------------------------
>
>                 Key: LANG-1016
>                 URL: https://issues.apache.org/jira/browse/LANG-1016
>             Project: Commons Lang
>          Issue Type: Wish
>          Components: lang.math.*
>            Reporter: Juan Pablo Santos Rodríguez
>             Fix For: Review Patch, Discussion
>
>         Attachments: LANG-1016.patch
>
>
> (for background see [LANG-997|https://issues.apache.org/jira/browse/LANG-997?focusedCommentId=13991193&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13991193])
> It would be nice to have an {{isParseable}} method (or whatever it may be called), to
be able to identify valid (=parseable) Numbers, something along the lines {{toDouble(String)}}
/ {{toLong(String)}} etc., but returning {{true}} / {{false}} while avoiding at the same time
the {{try/catch(NumberFormatException)}} of those methods.
> This method would be similar to {{isNumber}}, but it should yield {{true}} for invalid
octals like "018" which are parseable as Numbers. The point of this method is to identify
"human" (neither hex nor octal, but should handle decimal points) numbers stored as Strings,

> We are using NumberUtils#isNumber to identify valid (parseable, human) numbers, but as
of 3.3, this method also handles octal numbers, so, f.ex.,  018, which was recognized as a
valid number, isn't recognized anymore as one.



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