GraphQL Lua
===

Lua implementation of GraphQL parser using LPeg.  Experimental.

Example
---

```lua
require 'parse' [[{
  me {
    firstName
    lastName
  }
}]]
```

Gives you this scary table:

```lua
{
  kind = "document",
  definitions = {
    {
      kind = "operation",
      operation = "query",
      selectionSet = {
        kind = "selectionSet",
        selections = {
          {
            kind = "field",
            name = {
              kind = "name",
              value = "me"
            },
            selectionSet = {
              kind = "selectionSet",
              selections = {
                {
                  kind = "field",
                  name = {
                    kind = "name",
                    value = "firstName"
                  }
                },
                {
                  kind = "field",
                  name = {
                    kind = "name",
                    value = "lastName"
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}
```

Status
---

The parser can parse virtually all of the query syntax:

- Documents
- Definitions
  - OperationDefinition
  - FragmentDefinition
- Selections
- Fields
- Aliases
- Arguments
- FragmentSpreads and InlineFragments
- All value types (scalars, enums, lists, objects, variables).
- VariableDefinitions (typed)
- Directives

The type system supports scalars, objects, enums, input objects, interfaces, and unions.  The built in scalars are
also provided (ints, floats, strings, etc.), as well as the two wrapper types (non null and list).

License
---

MIT