Allow variables as parameters

[pathawks]

This will first check to see if the passed parameters exist in context and, if so, substitute those values in place of the parameter.

This allows specifying things like the Gist ID in a pages front matter.

---
gist: 1342013

---

{% gist page.gist %}

Added test, but no docs.

Fixes #2

[parkr]

has_key? is deprecated. Please use key? instead.

[parkr]

This LGTM, besides the deprecation above.

[pathawks]

undefined method `key?' for #<Liquid::Context:0x007fdb1223bc80>

I'm Googling...

[pathawks]

I found has_key? in the Liquid source code, but I can't find key?

[parkr]

of course they wouldn't line up with hashes.....

[pathawks]

So has_key? is the way to go after all?

[parkr]

So has_key? is the way to go after all?

yeah. inconsistent with Ruby's current state.

[pathawks]

eep, you're too fast for me

if context[gist_id]

Should I change this back to

if context.has_key?(gist_id)

❔

[parkr]

uh yeah I guess. it'll be faster.

sorry, i didn't realize that you changed anything.

[pathawks]

New pull request?

[parkr]

New pull request?

👍

[pathawks]

#6

[coalwater]

Thanks @parkr, @pathawks