GitHub templates

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,14 @@
+## Checklist
+
+- [ ] I have searched the [issue list](https://github.com/osteele/liquid/issues)
+- [ ] I have read the [status](https://github.com/osteele/gojekyll#status) section of the README. This isn't a duplicate of something that's already on the roadmap.
+- [ ] I  have ready the [other differences](https://github.com/osteele/gojekyll#status) section of the README.
+- [ ] I have tested my example against Shopify Liquid. (Not necessary for a panic or stack trace. These should never happen.)
+
+## Expected Behavior
+
+## Actual Behavior
+
+## Detailed Description
+
+## Possible Solution

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,8 @@
+## Checklist
+
+- [ ] I have read the contribution guidelines.
+- [ ] `make test` passes.
+- [ ] `make lint` passes.
+- [ ] New and changed code is covered by tests.
+- [ ] Performance improvements include benchmarks.
+- [ ] Changes match the *documented* (not just the *implemented*) behavior of Shopify.

CONTRIBUTING.md

@@ -1,13 +1,14 @@
 # Contributing
 
-Refer to the [(original) Liquid contribution guidelines](https://github.com/Shopify/liquid/blob/master/CONTRIBUTING.md).
+Here's some ways to help:
 
-In addition to those checklists, I also won't merge:
+* Pick an un-checked item from [Status](https://github.com/osteele/liquid#status). Let me know you want to work on it – I have ideas for some of these.
+* Search the source for FIXME and TODO. Tackle one of them.
+* Improve the [code coverage](https://coveralls.io/github/osteele/liquid?branch=master).
 
-- [ ] Performance improvements that don't include a benchmark.
-- [ ] Meager (<3%) performance improvements that increase code verbosity or complexity.
+Review the [pull request template](https://github.com/osteele/liquid/blob/master/.github/PULL_REQUEST_TEMPLATE.md) before you get too far along on coding.
 
-A caveat: The cyclomatic complexity checks on generated functions, hand-written parsers, and some of the generic interpreter functions, have been disabled (via `nolint: gocyclo`). IMO this check isn't appropriate for those classes of functions. This isn't a license to disable cyclomatic complexity or lint in general.
+A note on lint: `nolint: gocyclo` has been used to disable cyclomatic complexity checks on generated functions, hand-written parsers, and some of the generic interpreter functions. IMO this check isn't appropriate for those classes of functions. This isn't a license to disable cyclomatic complexity checks or lint in general.
 
 ## Cookbook
 

README.md

@@ -15,6 +15,7 @@
 
 - [Go Liquid Template Parser](#go-liquid-template-parser)
     - [Status](#status)
+    - [Other Differences](#other-differences)
     - [Install](#install)
     - [Contributing](#contributing)
     - [References](#references)
@@ -28,7 +29,7 @@
 
 ## Status
 
-This library is in early development. The API may still change.
+This library is in early development. There's probably lots of corner cases, and the API (especially around defining tags) may still change.
 
 - [ ] Basics
   - [x] Literals
@@ -44,6 +45,7 @@ This library is in early development. The API may still change.
     - [x] `unless`
     - [x] `case`
       - [x] `when`
+      - [ ] `when a or b`
       - [ ] `else`
   - [ ] Iteration
       - [x] modifiers (`limit`, `reversed`, `offset`)
@@ -62,6 +64,22 @@ This library is in early development. The API may still change.
   - [x] everything else
 - [x] Drops
 
+## Other Differences
+
+These will change:
+
+* I haven't investigated the interaction of loop reversed, limit, and offset, and whether it matters which order they're specified, in Shopify Liquid.
+* This implementation doesn't parse very many date formats. I have any idea for this; talk to me if you're interested in implementing it.
+* Identifiers can include hyphens.
+* `contains` isn't implemented on hashes.
+* `contains` doesn't stringify its argument.
+* The `nil` constant isn't implemented.
+
+These might not:
+
+* This parser accepts parentheses in places where Shopify Liquid does not.
+* `else` and `elsif` work inside of `unless`
+
 ## Install
 
 `go get -u github.com/osteele/goliquid`