8 More Definite Clause Grammars

This lecture has two main goals:

1. To examine two important capabilities offered by DCG notation: extra arguments and extra tests.

2. To discuss the status and limitations of DCGs.

• 8.1 Extra arguments
  • 8.1.1 Context free grammars with features
  • 8.1.2 Building parse trees
  • 8.1.3 Beyond context free languages

• 8.2 Extra goals
  • 8.2.1 Separating rules and lexicon

• 8.3 Concluding remarks

• 8.4 Exercises

• 8.5 Practical Session 8