Implemented start of GUI.
Contains questions, fields and automatic updates.
Implemented if/else visibility in form.
Cleaned up code.
Removed strong-types from operations/operators.
Improved naming.
Removed Rule implementation from Form.
Separated parsing and type checking.
Added line numbers to validation.
Fixed unit tests.
Fixed naming.
Updated view.
Improved GUI.
Turned modifiers into unary operations.
Cleaned up code.
Improved sample form.
Improved folder structure.
Cleaned up grammar code.
Removed null contract.
Fixed bug with line numbers.
Cleaned formatting.