Perl ZPath and ZTemplate implementation

[tobyink]

zpath.me doesn't have any contact details listed to add new implementations, so I figured I would file an issue here and hope for the best.

Here's the implementation:
https://metacpan.org/release/TOBYINK/Data-ZPath-0.001000

I extended ZTemplate a little. I allow {{/}} as a shortcut to close a block:

{{# metadata/author }}
 <meta name="author" content="{{.}}" />
{{/}}

I allow :: raw and :: html to indicate how something should be escaped:

<h1>{{ product/name :: html }}</h1>

Other than that, the implementations are pretty faithful to the original. I'm considering adding some additional functions to ZPath for other datatypes like DateTimes (year(), month(), etc functions) but haven't done that yet.

[faceless2]

Hi Toby - fantastic! Thanks so much for the implementation and for letting me know.

I very much like your {{/}} for closing (why did I not think of this myself?), and moving escaping out of a function to the top-level is not a bad idea too. Escaping/unescaping output with a function felt a bit clunky. I will definitely adopt the first into the Java version and the docs, and I'll ponder the second for a bit longer.

One thing I'm thinking of adding is a {{! key=value, key=value }} block to set properties on the template, primarily so it can set a media-type at this point - the properties will have no effect on the output but can be read by processors. I haven't added this to the spec due to other commitments yet, but consider that sequence reserved.

Finally as for new functions, that's how I see the model expanding so these are always welcome. Let's try and stay in sync on those, so keep me posted and I'll do the same. Here is fine for now I guess, I haven't got a repository for the zpath.me website.

I've added your implementation to the zpath.me page. Thanks again.