Added support for JEE JSP tags.

[leogtzr]

Added support for JSP tags (please check the tld file and the Exp4JTagHandler.

<expr4j:expr expr="sin(x)" x="4">

    </expr4j:expr>

    <expr4j:expr expr="sin(x)" x="4" />

<expr4j:expr x="2">
    <jsp:attribute name="expr">
       2  + x^2
    </jsp:attribute>
</expr4j:expr>

[leogtzr]

I will write the code to pack the tld file into a jar file tomorrow.

[fasseg]

Hey @leogtzr,

I think this would make an excellent project on it's own, maybe exp4j-tld or something, but IMHO it's out of scope for the exp4j core. Please let me know if you're interested in setting up such a project, so I can put up some links.

[leogtzr]

Yes, I am interested! @fasseg please go ahead

[fasseg]

Very cool!
What I meant was that you create a project on e.g. GitHub. Once it's finished I will link to your project from the exp4j pages and mention it in the docs.

[leogtzr]

Done!
https://github.com/leogtzr/exp4j_tld

Thanks

[leogtzr]

Added support for custom functions :)

[fasseg]

Very cool I will update the docs and link to your project.

[fasseg]

I released 0.4.3 and added a link.