allow self-referencing for YAML-blocks in md files

[trenkert]

right now, pandoc-mustache depends on an external yaml-file from which to draw its variables. Would it be possible to include a function that - if no
mustache: ./external_variables.yaml
has been specified, mustache reads the yaml-block of the input file and expects references to variables in the body text?

something like

---
date: 1.1.1970
---

The day of {{date}} does not lie in the future

?

[rriemann]

This would be an interesting feature. 👍

[michaelstepner]

This is an interesting idea. I'm not sure off hand if it's in the spirit of the Mustache templating spec, but it does seem useful. I'd welcome more discussion. I'd potentially merge a pull request that implements this.

I've pasted the contributing section from the README below.

Contributing

Project Status: Inactive

This code is not being actively developed. It was created to fulfill my pandoc writing needs, and the current feature set is adequate for me.

If you have a feature request, it is unlikely that I will be able to implement it for you. You can create an issue to generate discussion. If you implement a feature, you can file pull request and I will review it eventually, as time permits. If you're interested in making major additions to the code, I'd be happy to welcome a new maintainer to the project.

[rriemann]

Has this been closed as wont-fix or has this been implemented?

[copart]

I implemented what I believe this issue was requesting.

Submitted as a pull request:
#11