On 8/4/2011 6:16 PM, Richard Eckart de Castilho wrote:
> Am 04.08.2011 um 23:27 schrieb Marshall Schor:
>
>> Many other languages allow both ${xxx} and $xxx - the latter for cases where
>> the
>> xxx's are limited to chars + numbers + maybe underscores, dashes, and
>> periods;
>> the first character not allowed "stops" the parsing of the name. You still
>> need
>> the {} form for such things like ${xxx}yyy or for ${x!_($*} (if you want to
>> allow that as a "name" - property files do, apparently).
> How about supporting Commons EL [1] or the Spring Expression Language [2] or
> JEXL [3]?
All of these are potentially quite complex expression languages, each with their
own particulars.
I think one of the goals of the use cases is to have the "xml" readable by a
non-expert - someone who's only familiar with XML, perhaps. Simple string
substitution I think is enough to give the flexibility needed for the use cases.
-Marshall
>
> -- Richard
>
> [1] http://commons.apache.org/jexl/reference/syntax.html
> [2]
> http://static.springsource.org/spring/docs/3.0.x/reference/expressions.html
> [3] http://commons.apache.org/el/
>
