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https://issues.apache.org/jira/browse/SLING-2477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13581727#comment-13581727
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Ian Boston commented on SLING-2477:
-----------------------------------

Not sure, I thought thats what the existing properties format was as described 
in the description above. Might have missunderstood.

However, there is an advantage.

I"1000" matches far fewer potential values than
/^([TIiLlFfDdSsXxCcBb])(.*)/

This could be narrowed down with parses/regexes
/^([IiLlSs])([+\-0-9].*)$/
/^([DdFf])([+\-\.Ee0-9].*)$/
/^([Xx])([x0-9].*)$/
/^([Cc])(.)$/
/^([Bb])([tfyn]|true|false)$/
BTW, those are not tested or complete, just for illustration purposes.

But,
/^T(.*)$/ for explicit text is going to match a lot of strings which will make 
migrating existing sling:OsgiConfig nodes expensive, so it seems simpler to use 
/^([TIiLlFfDdSsXxCcBb])"(.*)"/

                
> Configuration via sling:OsgiConfig nodes does not support all types
> -------------------------------------------------------------------
>
>                 Key: SLING-2477
>                 URL: https://issues.apache.org/jira/browse/SLING-2477
>             Project: Sling
>          Issue Type: Bug
>          Components: Installer
>    Affects Versions: JCR Installer 3.1.2
>            Reporter: Alexander Klimetschek
>            Assignee: Ian Boston
>
> Most notably, the common "service.ranking" needs to be an Integer, while the 
> jcr property mapping only allows for "Long" types at the moment. The problem 
> is that JCR has a smaller set of property types than the OSGi config admin 
> (JCR: String, Boolean, Long, Double, Decimal; OSGi: String, Boolean, Long, 
> Integer, Float, Double, and probably more differences...).
> Similarly to properties files (which do it in the value like 
> 'service.ranking=I"-10000"' with I=Integer), there must be a way to 
> explicitly specify the type regardless of the JCR type. For example, encoding 
> it in the property name like "service.ranking{int}".

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