[weld-issues] [JBoss JIRA] Created: (WELDX-185) Implement an interpolator for strings containing expressions

[Dan Allen (JIRA)]

Implement an interpolator for strings containing expressions
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                 Key: WELDX-185
                 URL: https://jira.jboss.org/browse/WELDX-185
             Project: Weld Extensions
          Issue Type: Feature Request
    Affects Versions: 1.0.0.Beta1
            Reporter: Dan Allen
             Fix For: 1.0.0.Beta2


Since Weld Extensions has adopted the EL expression resolver, it's fitting that it also provides an interpolator for strings containing EL expression.

Provide an interpolator that resolves EL expressions and position parameters in strings. This feature was available in Seam 2 [1]. Since it's not provided yet in Seam 3, we see it showing up as a utility in various modules, including the International [2] and REST [3] modules. We should consolidate this to a single, authoritative source.

It should probably be made an interface with implementations that process specific expression languages, such as EL. For instance, one implementation might interpret MVEL. Just an idea. 

[1] http://anonsvn.jboss.org/repos/seam/branches/community/Seam_2_2/src/main/org/jboss/seam/core/Interpolator.java
[2] https://github.com/seam/international/raw/master/impl/src/main/java/org/jboss/seam/international/status/builder/Interpolator.java
[3] https://github.com/seam/rest/raw/master/impl/src/main/java/org/jboss/seam/rest/util/ExpressionLanguageInterpolator.java

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