问题
All the documentation and examples of Mustache I've seen show how to use a hash to populate a template. I'm interested in going the other direction. EG, if I have this:
Hello {{name}}
Can mustache generate this (pseudo-code):
tags = 'name'
I'm using the PHP flavor of Mustache, but I'm not too particular about the language. What I'm trying to do is build a system where people can create templates with Mustache tags, and another developer can quickly see what data the template will need. Is this something Mustache can do, or am I going to have to do some fun regex magic?
回答1:
You could use Hogan.js running on nodejs for example, and use the scan function:
var template = "{{foo}}{{#bar}}{{baz}}{{/bar}}{{#array}}{{.}}{{/array}}"'
var parsedTree = Hogan.scan(template, '{{ }}');
What this returns is an array of objects. Each object entry has two keys that you want to look for: n represents the tag name, tag represents the tag type.
I don't think the tag types are clearly documented, but as a reference _v means plain text, # is a section start and / is section end.
回答2:
I know I'm late to this question but I stumbled upon it when looking for a recommendation on how to do the same thing, in Ruby. Since I found a solution that's working well for me, I thought I would share:
Create a custom renderer, subclassed from Mustache, and track the requests for each partial or context there. You're going to want/need the normal rendering behavior anyway, since you'll want to catch contexts/partials referenced from other partials.
In Ruby, this is really easy to do -- hope it's still helpful for the PHP devs out there, too. :)
来源：https://stackoverflow.com/questions/9355364/mustache-retrieve-list-hash-of-tags-from-a-template