Torin Sandall b7b6e2ae21 Refactor topdown built-in functions ...

These changes address issues with the existing built-ins:

1. Error messages are improved to avoid leaking sensitive values.
2. Helpers are provided to report common errors consistently.
3. Built-in developmnet is simplified by removing boilerplate. Built-ins
no longer have to invoke the query iterator, unify/unbind results, etc.

Also, remove the adding-builtins.md doc in favour of an example test
case.

Fixes #205

2017-01-20 13:58:13 -08:00

..

DEVELOPMENT.md

Update generated parser code

2016-10-31 18:05:22 -07:00

RELEASE.md

Improve release infrastructure

2016-12-22 15:54:00 -08:00