Lazy Partials

[remko]

Right now, partials need to be passed as a map<string, string>. This means partials need to be read up front, which can be a heavy task if there are lots of potential partials that can be used by the template (as this isn't known upfront).

It would be handy if partials would be read lazily, e.g. by passing an map<string, lambda> instead of a map<string, string>.

[KingDuckZ]

From the mustache docs I understand that {{> test}} should try to open a file called test.mustache, at least by default. I'm not sure if I can set some search paths in mstch, or if this behaviour is there at all. Apparently not?