1.0.4

• bugfix: Allow extra space at the beginning of the GRAMMAR #8
• enhancement: Raise specific exception #7
• enhancement: Feature pytest integration #9

1.0.3

• PEP8 Compliance and small coverage increase

1.0.2

• Removed unused print statement
• Added unit tests

1.0.1

Fix description and example in README

1.0.0

Initial release