Allow array access for lists about bbmustache

[evan-gordon]

Sure, no worries.

For reference if you want to see what the changes would look like check here:
evan-gordon@b43a502

Fyi, this is the .0. index implementation.

Forgive my erlang if it's not very good, I use Elixir typically.

[evan-gordon]

Yeah i was aware of the support for assoc lists, and i thought of adding a flag for possibly enabling this feature as it's something i have to support.

Thanks for the patch i appreciate it! Though I'm sad to hear this won't be officcially supported.
I'll close the ticket then.

[soranoba]

Hi, @evan-gordon
Can you tell me some libraries that support this syntax?

[evan-gordon]

Sure!

It seems like mustache JS does:
janl/mustache.js#158

samskivert/jmustache#44

This seems to be a popular stackoverflow issue on the topic:
https://stackoverflow.com/questions/11147373/only-show-the-first-item-in-list-using-mustache/17950970#17950970
they suggest that handlebars.js supports the .[0]. synatax.

It looks like mustache.java supports it, but as an extension (not too sure what that means)
spullara/mustache.java#68

Most libraries (and the mustache spec) don't seem to document it though so it's hard to find more information than this.

[soranoba]

Thank you for the information.
I will check and decide, so please wait for a few days. 🙇

[soranoba]

mustache/mustache#222 (comment)

As far as I looked into it, as Ricardo said in this comment, I think that this behavior depends on the implementation of javascript.

• I am negative about adding syntax, because it possible syntax collision in the future.
• Some libraries have similar issues, but many of them are not solved.
  • mustache/mustache: mustache/mustache#222
  • defunkt/pystache: defunkt/pystache#196
  • groue/GRMustache.swift: groue/GRMustache.swift#2
• It currently supports assoc list, so it is difficult to prioritize array and assoc list.
  • If data is [{"a", [{"0", "value"}]}], it is difficult to determine whether a.0 refers to "value" or {"0", "value"}.

For these reasons, I will avoid official support.

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FYI:
I put a patch I wrote, because I am worry about the performance waste of your implementation.
https://gist.github.com/soranoba/2d0c53b3c293beb011f5a2fcbe961648